Merge pull request #232 from hkalexling/rc/0.24.0

v0.24.0
Merge branch 'dev' into rc/0.24.0
2026-01-24 00:03:14 -05:00 · 2021-09-25 13:39:48 +08:00 · 2021-09-23 07:52:58 +00:00 · 2021-09-23 15:52:14 +08:00 · 2021-09-22 09:17:14 +00:00 · 2021-09-20 01:36:31 +00:00
46 changed files with 1223 additions and 1050 deletions
--- a/.all-contributorsrc
+++ b/.all-contributorsrc
@@ -104,6 +104,15 @@
      "contributions": [
        "infra"
      ]
+    },
+    {
+      "login": "lincolnthedev",
+      "name": "i use arch btw",
+      "avatar_url": "https://avatars.githubusercontent.com/u/41193328?v=4",
+      "profile": "https://lncn.dev",
+      "contributions": [
+        "infra"
+      ]
    }
  ],
  "contributorsPerLine": 7,
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,2 +1,9 @@
 node_modules
 lib
+Dockerfile
+Dockerfile.arm32v7
+Dockerfile.arm64v8
+README.md
+.all-contributorsrc
+env.example
+.github/
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,12 +12,12 @@ jobs:

    runs-on: ubuntu-latest
    container:
-      image: crystallang/crystal:0.35.1-alpine
+      image: crystallang/crystal:1.0.0-alpine

    steps:
    - uses: actions/checkout@v2
    - name: Install dependencies
-      run: apk add --no-cache yarn yaml sqlite-static libarchive-dev libarchive-static acl-static expat-static zstd-static lz4-static bzip2-static libjpeg-turbo-dev libpng-dev tiff-dev
+      run: apk add --no-cache yarn yaml-static sqlite-static libarchive-dev libarchive-static acl-static expat-static zstd-static lz4-static bzip2-static libjpeg-turbo-dev libpng-dev tiff-dev
    - name: Build
      run: make static || make static
    - name: Linter
--- a/4
+++ b/4
@@ -1,9 +1,9 @@
-FROM crystallang/crystal:0.35.1-alpine AS builder
+FROM crystallang/crystal:1.0.0-alpine AS builder

 WORKDIR /Mango

 COPY . .
-RUN apk add --no-cache yarn yaml sqlite-static libarchive-dev libarchive-static acl-static expat-static zstd-static lz4-static bzip2-static libjpeg-turbo-dev libpng-dev tiff-dev
+RUN apk add --no-cache yarn yaml-static sqlite-static libarchive-dev libarchive-static acl-static expat-static zstd-static lz4-static bzip2-static libjpeg-turbo-dev libpng-dev tiff-dev
 RUN make static || make static

 FROM library/alpine
--- a/Dockerfile.arm32v7
+++ b/Dockerfile.arm32v7
@@ -2,10 +2,10 @@ FROM arm32v7/ubuntu:18.04

 RUN apt-get update && apt-get install -y wget git make llvm-8 llvm-8-dev g++ libsqlite3-dev libyaml-dev libgc-dev libssl-dev libcrypto++-dev libevent-dev libgmp-dev zlib1g-dev libpcre++-dev pkg-config libarchive-dev libxml2-dev libacl1-dev nettle-dev liblzo2-dev liblzma-dev libbz2-dev libjpeg-turbo8-dev libpng-dev libtiff-dev

-RUN git clone https://github.com/crystal-lang/crystal && cd crystal && git checkout 0.35.1 && make deps && cd ..
-RUN git clone https://github.com/kostya/myhtml && cd myhtml/src/ext && git checkout v1.5.0 && make && cd ..
-RUN git clone https://github.com/jessedoyle/duktape.cr && cd duktape.cr/ext && git checkout v0.20.0 && make && cd ..
-RUN git clone https://github.com/hkalexling/image_size.cr && cd image_size.cr && git checkout v0.2.0 && make && cd ..
+RUN git clone https://github.com/crystal-lang/crystal && cd crystal && git checkout 1.0.0 && make deps && cd ..
+RUN git clone https://github.com/kostya/myhtml && cd myhtml/src/ext && git checkout v1.5.8 && make && cd ..
+RUN git clone https://github.com/jessedoyle/duktape.cr && cd duktape.cr/ext && git checkout v1.0.0 && make && cd ..
+RUN git clone https://github.com/hkalexling/image_size.cr && cd image_size.cr && git checkout v0.5.0 && make && cd ..

 COPY mango-arm32v7.o .

--- a/Dockerfile.arm64v8
+++ b/Dockerfile.arm64v8
@@ -2,10 +2,10 @@ FROM arm64v8/ubuntu:18.04

 RUN apt-get update && apt-get install -y wget git make llvm-8 llvm-8-dev g++ libsqlite3-dev libyaml-dev libgc-dev libssl-dev libcrypto++-dev libevent-dev libgmp-dev zlib1g-dev libpcre++-dev pkg-config libarchive-dev libxml2-dev libacl1-dev nettle-dev liblzo2-dev liblzma-dev libbz2-dev libjpeg-turbo8-dev libpng-dev libtiff-dev

-RUN git clone https://github.com/crystal-lang/crystal && cd crystal && git checkout 0.35.1 && make deps && cd ..
-RUN git clone https://github.com/kostya/myhtml && cd myhtml/src/ext && git checkout v1.5.0 && make && cd ..
-RUN git clone https://github.com/jessedoyle/duktape.cr && cd duktape.cr/ext && git checkout v0.20.0 && make && cd ..
-RUN git clone https://github.com/hkalexling/image_size.cr && cd image_size.cr && git checkout v0.2.0 && make && cd ..
+RUN git clone https://github.com/crystal-lang/crystal && cd crystal && git checkout 1.0.0 && make deps && cd ..
+RUN git clone https://github.com/kostya/myhtml && cd myhtml/src/ext && git checkout v1.5.8 && make && cd ..
+RUN git clone https://github.com/jessedoyle/duktape.cr && cd duktape.cr/ext && git checkout v1.0.0 && make && cd ..
+RUN git clone https://github.com/hkalexling/image_size.cr && cd image_size.cr && git checkout v0.5.0 && make && cd ..

 COPY mango-arm64v8.o .

--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@

 # Mango

-[![Patreon](https://img.shields.io/badge/support-patreon-brightgreen?link=https://www.patreon.com/hkalexling)](https://www.patreon.com/hkalexling) ![Build](https://github.com/hkalexling/Mango/workflows/Build/badge.svg) [![Gitter](https://badges.gitter.im/mango-cr/mango.svg)](https://gitter.im/mango-cr/mango?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
+[![Patreon](https://img.shields.io/badge/support-patreon-brightgreen?link=https://www.patreon.com/hkalexling)](https://www.patreon.com/hkalexling) ![Build](https://github.com/hkalexling/Mango/workflows/Build/badge.svg) [![Gitter](https://badges.gitter.im/mango-cr/mango.svg)](https://gitter.im/mango-cr/mango?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge) [![Discord](https://img.shields.io/discord/855633663425118228?label=discord)](http://discord.com/invite/ezKtacCp9Q)

 Mango is a self-hosted manga server and reader. Its features include

@@ -13,7 +13,6 @@ Mango is a self-hosted manga server and reader. Its features include
 - Supports nested folders in library
 - Automatically stores reading progress
 - Thumbnail generation
- Built-in [MangaDex](https://mangadex.org/) downloader
 - Supports [plugins](https://github.com/hkalexling/mango-plugins) to download from thrid-party sites
 - The web reader is responsive and works well on mobile, so there is no need for a mobile app
 - All the static files are embedded in the binary, so the deployment process is easy and painless
@@ -52,7 +51,7 @@ The official docker images are available on [Dockerhub](https://hub.docker.com/r
 ### CLI

 ```
-  Mango - Manga Server and Web Reader. Version 0.21.0
+  Mango - Manga Server and Web Reader. Version 0.24.0

  Usage:

@@ -87,7 +86,10 @@ log_level: info
 upload_path: ~/mango/uploads
 plugin_path: ~/mango/plugins
 download_timeout_seconds: 30
-page_margin: 30
+library_cache_path: ~/mango/library.yml.gz
+cache_enabled: false
+cache_size_mbs: 50
+cache_log_enabled: true
 disable_login: false
 default_username: ""
 auth_proxy_header_name: ""
@@ -104,6 +106,7 @@ mangadex:
 - `scan_interval_minutes`, `thumbnail_generation_interval_hours` and `db_optimization_interval_hours` can be any non-negative integer. Setting them to `0` disables the periodic tasks
 - `log_level` can be `debug`, `info`, `warn`, `error`, `fatal` or `off`. Setting it to `off` disables the logging
 - You can disable authentication by setting `disable_login` to true. Note that `default_username` must be set to an existing username for this to work.
+- By setting `cache_enabled` to `true`, you can enable an experimental feature where Mango caches library metadata to improve page load time. You can further fine-tune the feature with `cache_size_mbs` and `cache_log_enabled`.

 ### Library Structure

@@ -175,6 +178,7 @@ Please check the [development guideline](https://github.com/hkalexling/Mango/wik
    <td align="center"><a href="https://github.com/Leeingnyo"><img src="https://avatars0.githubusercontent.com/u/6760150?v=4?s=100" width="100px;" alt=""/><br /><sub><b>이인용</b></sub></a><br /><a href="https://github.com/hkalexling/Mango/commits?author=Leeingnyo" title="Code">💻</a></td>
    <td align="center"><a href="http://h45h74x.eu.org"><img src="https://avatars1.githubusercontent.com/u/27204033?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Simon</b></sub></a><br /><a href="https://github.com/hkalexling/Mango/commits?author=h45h74x" title="Code">💻</a></td>
    <td align="center"><a href="https://github.com/davidkna"><img src="https://avatars.githubusercontent.com/u/835177?v=4?s=100" width="100px;" alt=""/><br /><sub><b>David Knaack</b></sub></a><br /><a href="#infra-davidkna" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
+    <td align="center"><a href="https://lncn.dev"><img src="https://avatars.githubusercontent.com/u/41193328?v=4?s=100" width="100px;" alt=""/><br /><sub><b>i use arch btw</b></sub></a><br /><a href="#infra-lincolnthedev" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
  </tr>
 </table>

--- a/public/js/download.js
+++ b/public/js/download.js
@@ -1,287 +0,0 @@
-const downloadComponent = () => {
-	return {
-		chaptersLimit: 1000,
-		loading: false,
-		addingToDownload: false,
-		searchAvailable: false,
-		searchInput: '',
-		data: {},
-		chapters: [],
-		mangaAry: undefined, // undefined: not searching; []: searched but no result
-		candidateManga: {},
-		langChoice: 'All',
-		groupChoice: 'All',
-		chapterRange: '',
-		volumeRange: '',
-
-		get languages() {
-			const set = new Set();
-			if (this.data.chapters) {
-				this.data.chapters.forEach(chp => {
-					set.add(chp.language);
-				});
-			}
-			const ary = [...set].sort();
-			ary.unshift('All');
-			return ary;
-		},
-
-		get groups() {
-			const set = new Set();
-			if (this.data.chapters) {
-				this.data.chapters.forEach(chp => {
-					Object.keys(chp.groups).forEach(g => {
-						set.add(g);
-					});
-				});
-			}
-			const ary = [...set].sort();
-			ary.unshift('All');
-			return ary;
-		},
-
-		init() {
-			const tableObserver = new MutationObserver(() => {
-				console.log('table mutated');
-				$("#selectable").selectable({
-					filter: 'tr'
-				});
-			});
-			tableObserver.observe($('table').get(0), {
-				childList: true,
-				subtree: true
-			});
-
-			$.getJSON(`${base_url}api/admin/mangadex/expires`)
-				.done((data) => {
-					if (data.error) {
-						alert('danger', 'Failed to check MangaDex integration status. Error: ' + data.error);
-						return;
-					}
-					if (data.expires && data.expires > Math.floor(Date.now() / 1000))
-						this.searchAvailable = true;
-				})
-				.fail((jqXHR, status) => {
-					alert('danger', `Failed to check MangaDex integration status. Error: [${jqXHR.status}] ${jqXHR.statusText}`);
-				})
-		},
-
-		filtersUpdated() {
-			if (!this.data.chapters)
-				this.chapters = [];
-			const filters = {
-				chapter: this.parseRange(this.chapterRange),
-				volume: this.parseRange(this.volumeRange),
-				lang: this.langChoice,
-				group: this.groupChoice
-			};
-			console.log('filters:', filters);
-			let _chapters = this.data.chapters.slice();
-			Object.entries(filters).forEach(([k, v]) => {
-				if (v === 'All') return;
-				if (k === 'group') {
-					_chapters = _chapters.filter(c => {
-						const unescaped_groups = Object.entries(c.groups).map(([g, id]) => this.unescapeHTML(g));
-						return unescaped_groups.indexOf(v) >= 0;
-					});
-					return;
-				}
-				if (k === 'lang') {
-					_chapters = _chapters.filter(c => c.language === v);
-					return;
-				}
-				const lb = parseFloat(v[0]);
-				const ub = parseFloat(v[1]);
-				if (isNaN(lb) && isNaN(ub)) return;
-				_chapters = _chapters.filter(c => {
-					const val = parseFloat(c[k]);
-					if (isNaN(val)) return false;
-					if (isNaN(lb))
-						return val <= ub;
-					else if (isNaN(ub))
-						return val >= lb;
-					else
-						return val >= lb && val <= ub;
-				});
-			});
-			console.log('filtered chapters:', _chapters);
-			this.chapters = _chapters;
-		},
-
-		search() {
-			if (this.loading || this.searchInput === '') return;
-			this.data = {};
-			this.mangaAry = undefined;
-
-			var int_id = -1;
-			try {
-				const path = new URL(this.searchInput).pathname;
-				const match = /\/(?:title|manga)\/([0-9]+)/.exec(path);
-				int_id = parseInt(match[1]);
-			} catch (e) {
-				int_id = parseInt(this.searchInput);
-			}
-
-			if (!isNaN(int_id) && int_id > 0) {
-				// The input is a positive integer. We treat it as an ID.
-				this.loading = true;
-				$.getJSON(`${base_url}api/admin/mangadex/manga/${int_id}`)
-					.done((data) => {
-						if (data.error) {
-							alert('danger', 'Failed to get manga info. Error: ' + data.error);
-							return;
-						}
-
-						this.data = data;
-						this.chapters = data.chapters;
-						this.mangaAry = undefined;
-					})
-					.fail((jqXHR, status) => {
-						alert('danger', `Failed to get manga info. Error: [${jqXHR.status}] ${jqXHR.statusText}`);
-					})
-					.always(() => {
-						this.loading = false;
-					});
-			} else {
-				if (!this.searchAvailable) {
-					alert('danger', 'Please make sure you are using a valid manga ID or manga URL from Mangadex. If you are trying to search MangaDex with a search term, please log in to MangaDex first by going to "Admin -> Connect to MangaDex".');
-					return;
-				}
-
-				// Search as a search term
-				this.loading = true;
-				$.getJSON(`${base_url}api/admin/mangadex/search?${$.param({
-					query: this.searchInput
-				})}`)
-					.done((data) => {
-						if (data.error) {
-							alert('danger', `Failed to search MangaDex. Error: ${data.error}`);
-							return;
-						}
-
-						this.mangaAry = data.manga;
-						this.data = {};
-					})
-					.fail((jqXHR, status) => {
-						alert('danger', `Failed to search MangaDex. Error: [${jqXHR.status}] ${jqXHR.statusText}`);
-					})
-					.always(() => {
-						this.loading = false;
-					});
-			}
-		},
-
-		parseRange(str) {
-			const regex = /^[\t ]*(?:(?:(<|<=|>|>=)[\t ]*([0-9]+))|(?:([0-9]+))|(?:([0-9]+)[\t ]*-[\t ]*([0-9]+))|(?:[\t ]*))[\t ]*$/m;
-			const matches = str.match(regex);
-			var num;
-
-			if (!matches) {
-				return [null, null];
-			} else if (typeof matches[1] !== 'undefined' && typeof matches[2] !== 'undefined') {
-				// e.g., <= 30
-				num = parseInt(matches[2]);
-				if (isNaN(num)) {
-					return [null, null];
-				}
-				switch (matches[1]) {
-					case '<':
-						return [null, num - 1];
-					case '<=':
-						return [null, num];
-					case '>':
-						return [num + 1, null];
-					case '>=':
-						return [num, null];
-				}
-			} else if (typeof matches[3] !== 'undefined') {
-				// a single number
-				num = parseInt(matches[3]);
-				if (isNaN(num)) {
-					return [null, null];
-				}
-				return [num, num];
-			} else if (typeof matches[4] !== 'undefined' && typeof matches[5] !== 'undefined') {
-				// e.g., 10 - 23
-				num = parseInt(matches[4]);
-				const n2 = parseInt(matches[5]);
-				if (isNaN(num) || isNaN(n2) || num > n2) {
-					return [null, null];
-				}
-				return [num, n2];
-			} else {
-				// empty or space only
-				return [null, null];
-			}
-		},
-
-		unescapeHTML(str) {
-			var elt = document.createElement("span");
-			elt.innerHTML = str;
-			return elt.innerText;
-		},
-
-		selectAll() {
-			$('tbody > tr').each((i, e) => {
-				$(e).addClass('ui-selected');
-			});
-		},
-
-		clearSelection() {
-			$('tbody > tr').each((i, e) => {
-				$(e).removeClass('ui-selected');
-			});
-		},
-
-		download() {
-			const selected = $('tbody > tr.ui-selected');
-			if (selected.length === 0) return;
-			UIkit.modal.confirm(`Download ${selected.length} selected chapters?`).then(() => {
-				const ids = selected.map((i, e) => {
-					return parseInt($(e).find('td').first().text());
-				}).get();
-				const chapters = this.chapters.filter(c => ids.indexOf(c.id) >= 0);
-				console.log(ids);
-				this.addingToDownload = true;
-				$.ajax({
-						type: 'POST',
-						url: `${base_url}api/admin/mangadex/download`,
-						data: JSON.stringify({
-							chapters: chapters
-						}),
-						contentType: "application/json",
-						dataType: 'json'
-					})
-					.done(data => {
-						console.log(data);
-						if (data.error) {
-							alert('danger', `Failed to add chapters to the download queue. Error: ${data.error}`);
-							return;
-						}
-						const successCount = parseInt(data.success);
-						const failCount = parseInt(data.fail);
-						UIkit.modal.confirm(`${successCount} of ${successCount + failCount} chapters added to the download queue. Proceed to the download manager?`).then(() => {
-							window.location.href = base_url + 'admin/downloads';
-						});
-					})
-					.fail((jqXHR, status) => {
-						alert('danger', `Failed to add chapters to the download queue. Error: [${jqXHR.status}] ${jqXHR.statusText}`);
-					})
-					.always(() => {
-						this.addingToDownload = false;
-					});
-			});
-		},
-
-		chooseManga(manga) {
-			this.candidateManga = manga;
-			UIkit.modal($('#modal').get(0)).show();
-		},
-
-		confirmManga(id) {
-			UIkit.modal($('#modal').get(0)).hide();
-			this.searchInput = id;
-			this.search();
-		}
-	};
-};
--- a/public/js/mangadex.js
+++ b/public/js/mangadex.js
@@ -1,61 +0,0 @@
-const component = () => {
-	return {
-		username: '',
-		password: '',
-		expires: undefined,
-		loading: true,
-		loggingIn: false,
-
-		init() {
-			this.loading = true;
-			$.ajax({
-					type: 'GET',
-					url: `${base_url}api/admin/mangadex/expires`,
-					contentType: "application/json",
-				})
-				.done(data => {
-					console.log(data);
-					if (data.error) {
-						alert('danger', `Failed to retrieve MangaDex token status. Error: ${data.error}`);
-						return;
-					}
-					this.expires = data.expires;
-					this.loading = false;
-				})
-				.fail((jqXHR, status) => {
-					alert('danger', `Failed to retrieve MangaDex token status. Error: [${jqXHR.status}] ${jqXHR.statusText}`);
-				});
-		},
-		login() {
-			if (!(this.username && this.password)) return;
-			this.loggingIn = true;
-			$.ajax({
-					type: 'POST',
-					url: `${base_url}api/admin/mangadex/login`,
-					contentType: "application/json",
-					dataType: 'json',
-					data: JSON.stringify({
-						username: this.username,
-						password: this.password
-					})
-				})
-				.done(data => {
-					console.log(data);
-					if (data.error) {
-						alert('danger', `Failed to log in. Error: ${data.error}`);
-						return;
-					}
-					this.expires = data.expires;
-				})
-				.fail((jqXHR, status) => {
-					alert('danger', `Failed to log in. Error: [${jqXHR.status}] ${jqXHR.statusText}`);
-				})
-				.always(() => {
-					this.loggingIn = false;
-				});
-		},
-		get expired() {
-			return this.expires && moment().diff(moment.unix(this.expires)) > 0;
-		}
-	};
-};
--- a/public/js/plugin-download.js
+++ b/public/js/plugin-download.js
@@ -126,9 +126,7 @@ const download = () => {
 				}
 				const successCount = parseInt(data.success);
 				const failCount = parseInt(data.fail);
-				UIkit.modal.confirm(`${successCount} of ${successCount + failCount} chapters added to the download queue. Proceed to the download manager?`).then(() => {
-					window.location.href = base_url + 'admin/downloads';
-				});
+				alert('success', `${successCount} of ${successCount + failCount} chapters added to the download queue. You can view and manage your download queue on the <a href="${base_url}admin/downloads">download manager page</a>.`);
 			})
 			.fail((jqXHR, status) => {
 				alert('danger', `Failed to add chapters to the download queue. Error: [${jqXHR.status}] ${jqXHR.statusText}`);
--- a/public/js/reader.js
+++ b/public/js/reader.js
@@ -6,10 +6,13 @@ const readerComponent = () => {
 		alertClass: 'uk-alert-primary',
 		items: [],
 		curItem: {},
+		enableFlipAnimation: true,
 		flipAnimation: null,
 		longPages: false,
 		lastSavedPage: page,
 		selectedIndex: 0, // 0: not selected; 1: the first page
+		margin: 30,
+		preloadLookahead: 3,

 		/**
 		 * Initialize the component by fetching the page dimensions
@@ -27,7 +30,6 @@ const readerComponent = () => {
 							url: `${base_url}api/page/${tid}/${eid}/${i+1}`,
 							width: d.width,
 							height: d.height,
-							style: `margin-top: ${data.margin}px; margin-bottom: ${data.margin}px;`
 						};
 					});

@@ -47,6 +49,21 @@ const readerComponent = () => {
 					const mode = this.mode;
 					this.updateMode(this.mode, page, nextTick);
 					$('#mode-select').val(mode);
+
+					const savedMargin = localStorage.getItem('margin');
+					if (savedMargin) {
+						this.margin = savedMargin;
+					}
+
+					// Preload Images
+					this.preloadLookahead = +(localStorage.getItem('preloadLookahead') ?? 3);
+					const limit = Math.min(page + this.preloadLookahead, this.items.length + 1);
+					for (let idx = page + 1; idx <= limit; idx++) {
+						this.preloadImage(this.items[idx - 1].url);
+					}
+
+					const savedFlipAnimation = localStorage.getItem('enableFlipAnimation');
+					this.enableFlipAnimation = savedFlipAnimation === null || savedFlipAnimation === 'true';
 				})
 				.catch(e => {
 					const errMsg = `Failed to get the page dimensions. ${e}`;
@@ -55,6 +72,12 @@ const readerComponent = () => {
 					this.msg = errMsg;
 				})
 		},
+		/**
+		 * Preload an image, which is expected to be cached
+		 */
+		preloadImage(url) {
+			(new Image()).src = url;
+		},
 		/**
 		 * Handles the `change` event for the page selector
 		 */
@@ -106,12 +129,18 @@ const readerComponent = () => {

 			if (newIdx <= 0 || newIdx > this.items.length) return;

+			if (newIdx + this.preloadLookahead < this.items.length + 1) {
+				this.preloadImage(this.items[newIdx + this.preloadLookahead - 1].url);
+			}
+
 			this.toPage(newIdx);

-			if (isNext)
-				this.flipAnimation = 'right';
-			else
-				this.flipAnimation = 'left';
+			if (this.enableFlipAnimation) {
+				if (isNext)
+					this.flipAnimation = 'right';
+				else
+					this.flipAnimation = 'left';
+			}

 			setTimeout(() => {
 				this.flipAnimation = null;
@@ -277,6 +306,19 @@ const readerComponent = () => {
 		entryChanged() {
 			const id = $('#entry-select').val();
 			this.redirect(`${base_url}reader/${tid}/${id}`);
-		}
+		},
+
+		marginChanged() {
+			localStorage.setItem('margin', this.margin);
+			this.toPage(this.selectedIndex);
+		},
+
+		preloadLookaheadChanged() {
+			localStorage.setItem('preloadLookahead', this.preloadLookahead);
+		},
+
+		enableFlipAnimationChanged() {
+			localStorage.setItem('enableFlipAnimation', this.enableFlipAnimation);
+		},
 	};
 }
--- a/public/js/subscription.js
+++ b/public/js/subscription.js
@@ -0,0 +1,82 @@
+const component = () => {
+	return {
+		available: undefined,
+		subscriptions: [],
+
+		init() {
+			$.getJSON(`${base_url}api/admin/mangadex/expires`)
+				.done((data) => {
+					if (data.error) {
+						alert('danger', 'Failed to check MangaDex integration status. Error: ' + data.error);
+						return;
+					}
+					this.available = Boolean(data.expires && data.expires > Math.floor(Date.now() / 1000));
+
+					if (this.available) this.getSubscriptions();
+				})
+				.fail((jqXHR, status) => {
+					alert('danger', `Failed to check MangaDex integration status. Error: [${jqXHR.status}] ${jqXHR.statusText}`);
+				})
+		},
+
+		getSubscriptions() {
+			$.getJSON(`${base_url}api/admin/mangadex/subscriptions`)
+				.done(data => {
+					if (data.error) {
+						alert('danger', 'Failed to get subscriptions. Error: ' + data.error);
+						return;
+					}
+					this.subscriptions = data.subscriptions;
+				})
+				.fail((jqXHR, status) => {
+					alert('danger', `Failed to get subscriptions. Error: [${jqXHR.status}] ${jqXHR.statusText}`);
+				})
+		},
+
+		rm(event) {
+			const id = event.currentTarget.parentNode.getAttribute('data-id');
+			$.ajax({
+					type: 'DELETE',
+					url: `${base_url}api/admin/mangadex/subscriptions/${id}`,
+					contentType: 'application/json'
+				})
+				.done(data => {
+					if (data.error) {
+						alert('danger', `Failed to delete subscription. Error: ${data.error}`);
+					}
+					this.getSubscriptions();
+				})
+				.fail((jqXHR, status) => {
+					alert('danger', `Failed to delete subscription. Error: [${jqXHR.status}] ${jqXHR.statusText}`);
+				});
+		},
+
+		check(event) {
+			const id = event.currentTarget.parentNode.getAttribute('data-id');
+			$.ajax({
+					type: 'POST',
+					url: `${base_url}api/admin/mangadex/subscriptions/check/${id}`,
+					contentType: 'application/json'
+				})
+				.done(data => {
+					if (data.error) {
+						alert('danger', `Failed to check subscription. Error: ${data.error}`);
+						return;
+					}
+					alert('success', 'Mango is now checking the subscription for updates. This might take a while, but you can safely leave the page.');
+				})
+				.fail((jqXHR, status) => {
+					alert('danger', `Failed to check subscription. Error: [${jqXHR.status}] ${jqXHR.statusText}`);
+				});
+		},
+
+		formatRange(min, max) {
+			if (!isNaN(min) && isNaN(max)) return `≥ ${min}`;
+			if (isNaN(min) && !isNaN(max)) return `≤ ${max}`;
+			if (isNaN(min) && isNaN(max)) return 'All';
+
+			if (min === max) return `= ${min}`;
+			return `${min} - ${max}`;
+		}
+	};
+};
--- a/shard.lock
+++ b/shard.lock
@@ -2,81 +2,77 @@ version: 2.0
 shards:
  ameba:
    git: https://github.com/crystal-ameba/ameba.git
-    version: 0.12.1
+    version: 0.14.3

  archive:
    git: https://github.com/hkalexling/archive.cr.git
-    version: 0.4.0
+    version: 0.5.0

  baked_file_system:
    git: https://github.com/schovi/baked_file_system.git
-    version: 0.9.8+git.commit.fb3091b546797fbec3c25dc0e1e2cff60bb9033b
+    version: 0.10.0

  clim:
    git: https://github.com/at-grandpa/clim.git
-    version: 0.12.0
+    version: 0.17.1

  db:
    git: https://github.com/crystal-lang/crystal-db.git
-    version: 0.9.0
+    version: 0.10.1

  duktape:
    git: https://github.com/jessedoyle/duktape.cr.git
-    version: 0.20.0
+    version: 1.0.0

  exception_page:
    git: https://github.com/crystal-loot/exception_page.git
-    version: 0.1.4
+    version: 0.1.5

  http_proxy:
    git: https://github.com/mamantoha/http_proxy.git
-    version: 0.7.1
+    version: 0.8.0

  image_size:
    git: https://github.com/hkalexling/image_size.cr.git
-    version: 0.4.0
+    version: 0.5.0

  kemal:
    git: https://github.com/kemalcr/kemal.git
-    version: 0.27.0
+    version: 1.0.0

  kemal-session:
    git: https://github.com/kemalcr/kemal-session.git
-    version: 0.12.1
+    version: 1.0.0

  kilt:
    git: https://github.com/jeromegn/kilt.git
-    version: 0.4.0
+    version: 0.4.1

  koa:
    git: https://github.com/hkalexling/koa.git
-    version: 0.7.0
-
-  mangadex:
-    git: https://github.com/hkalexling/mangadex.git
-    version: 0.8.0+git.commit.24e6fb51afd043721139355854e305b43bf98c43
+    version: 0.8.0

  mg:
    git: https://github.com/hkalexling/mg.git
-    version: 0.3.0+git.commit.a19417abf03eece80039f89569926cff1ce3a1a3
+    version: 0.5.0+git.commit.697e46e27cde8c3969346e228e372db2455a6264

  myhtml:
    git: https://github.com/kostya/myhtml.git
-    version: 1.5.1
+    version: 1.5.8

  open_api:
-    git: https://github.com/jreinert/open_api.cr.git
-    version: 1.2.1+git.commit.95e4df2ca10b1fe88b8b35c62a18b06a10267b6c
+    git: https://github.com/hkalexling/open_api.cr.git
+    version: 1.2.1+git.commit.1d3c55dd5534c6b0af18964d031858a08515553a

  radix:
    git: https://github.com/luislavena/radix.git
-    version: 0.3.9
+    version: 0.4.1

  sqlite3:
    git: https://github.com/crystal-lang/crystal-sqlite3.git
-    version: 0.16.0
+    version: 0.18.0

  tallboy:
    git: https://github.com/epoch/tallboy.git
-    version: 0.9.3
+    version: 0.9.3+git.commit.9be1510bb0391c95e92f1b288f3afb429a73caa6

--- a/shard.yml
+++ b/shard.yml
@@ -1,5 +1,5 @@
 name: mango
-version: 0.21.0
+version: 0.24.0

 authors:
  - Alex Ling <hkalexling@gmail.com>
@@ -8,7 +8,7 @@ targets:
  mango:
    main: src/mango.cr

-crystal: 0.35.1
+crystal: 1.0.0

 license: MIT

@@ -21,7 +21,6 @@ dependencies:
    github: crystal-lang/crystal-sqlite3
  baked_file_system:
    github: schovi/baked_file_system
-    version: 0.9.8+git.commit.fb3091b546797fbec3c25dc0e1e2cff60bb9033b
  archive:
    github: hkalexling/archive.cr
  ameba:
@@ -30,7 +29,6 @@ dependencies:
    github: at-grandpa/clim
  duktape:
    github: jessedoyle/duktape.cr
-    version: ~> 0.20.0
  myhtml:
    github: kostya/myhtml
  http_proxy:
@@ -41,7 +39,6 @@ dependencies:
    github: hkalexling/koa
  tallboy:
    github: epoch/tallboy
+    branch: master
  mg:
   github: hkalexling/mg
-  mangadex:
-   github: hkalexling/mangadex
--- a/spec/storage_spec.cr
+++ b/spec/storage_spec.cr
@@ -8,9 +8,7 @@ describe Storage do
  end

  it "deletes user" do
-    with_storage do |storage|
-      storage.delete_user "admin"
-    end
+    with_storage &.delete_user "admin"
  end

  it "creates new user" do
--- a/spec/util_spec.cr
+++ b/spec/util_spec.cr
@@ -21,7 +21,7 @@ describe "compare_numerically" do
  it "sorts like the stack exchange post" do
    ary = ["2", "12", "200000", "1000000", "a", "a12", "b2", "text2",
           "text2a", "text2a2", "text2a12", "text2ab", "text12", "text12a"]
-    ary.reverse.sort { |a, b|
+    ary.reverse.sort! { |a, b|
      compare_numerically a, b
    }.should eq ary
  end
@@ -29,7 +29,7 @@ describe "compare_numerically" do
  # https://github.com/hkalexling/Mango/issues/22
  it "handles numbers larger than Int32" do
    ary = ["14410155591588.jpg", "21410155591588.png", "104410155591588.jpg"]
-    ary.reverse.sort { |a, b|
+    ary.reverse.sort! { |a, b|
      compare_numerically a, b
    }.should eq ary
  end
@@ -56,8 +56,18 @@ describe "chapter_sort" do
  it "sorts correctly" do
    ary = ["Vol.1 Ch.01", "Vol.1 Ch.02", "Vol.2 Ch. 2.5", "Ch. 3", "Ch.04"]
    sorter = ChapterSorter.new ary
-    ary.reverse.sort do |a, b|
+    ary.reverse.sort! do |a, b|
      sorter.compare a, b
    end.should eq ary
  end
 end
+
+describe "sanitize_filename" do
+  it "returns a random string for empty sanitized string" do
+    sanitize_filename("..").should_not eq sanitize_filename("..")
+  end
+  it "sanitizes correctly" do
+    sanitize_filename("..  \n\v.\rマンゴー/|*()<[1/2] 3.14 hello world ")
+      .should eq "マンゴー_()[1_2] 3.14 hello world"
+  end
+end
--- a/src/config.cr
+++ b/src/config.cr
@@ -11,6 +11,8 @@ class Config
  property session_secret : String = "mango-session-secret"
  property library_path : String = File.expand_path "~/mango/library",
    home: true
+  property library_cache_path = File.expand_path "~/mango/library.yml.gz",
+    home: true
  property db_path : String = File.expand_path "~/mango/mango.db", home: true
  property scan_interval_minutes : Int32 = 5
  property thumbnail_generation_interval_hours : Int32 = 24
@@ -20,7 +22,9 @@ class Config
  property plugin_path : String = File.expand_path "~/mango/plugins",
    home: true
  property download_timeout_seconds : Int32 = 30
-  property page_margin : Int32 = 30
+  property cache_enabled = false
+  property cache_size_mbs = 50
+  property cache_log_enabled = true
  property disable_login = false
  property default_username = ""
  property auth_proxy_header_name = ""
--- a/src/library/cache.cr
+++ b/src/library/cache.cr
@@ -0,0 +1,188 @@
+require "digest"
+
+require "./entry"
+require "./types"
+
+# Base class for an entry in the LRU cache.
+# There are two ways to use it:
+#   1. Use it as it is by instantiating with the appropriate `SaveT` and
+#     `ReturnT`. Note that in this case, `SaveT` and `ReturnT` must be the
+#     same type. That is, the input value will be stored as it is without
+#     any transformation.
+#   2. You can also subclass it and provide custom implementations for
+#     `to_save_t` and `to_return_t`. This allows you to transform and store
+#     the input value to a different type. See `SortedEntriesCacheEntry` as
+#     an example.
+private class CacheEntry(SaveT, ReturnT)
+  getter key : String, atime : Time
+
+  @value : SaveT
+
+  def initialize(@key : String, value : ReturnT)
+    @atime = @ctime = Time.utc
+    @value = self.class.to_save_t value
+  end
+
+  def value
+    @atime = Time.utc
+    self.class.to_return_t @value
+  end
+
+  def self.to_save_t(value : ReturnT)
+    value
+  end
+
+  def self.to_return_t(value : SaveT)
+    value
+  end
+
+  def instance_size
+    instance_sizeof(CacheEntry(SaveT, ReturnT)) + # sizeof itself
+      instance_sizeof(String) + @key.bytesize +   # allocated memory for @key
+      @value.instance_size
+  end
+end
+
+class SortedEntriesCacheEntry < CacheEntry(Array(String), Array(Entry))
+  def self.to_save_t(value : Array(Entry))
+    value.map &.id
+  end
+
+  def self.to_return_t(value : Array(String))
+    ids_to_entries value
+  end
+
+  private def self.ids_to_entries(ids : Array(String))
+    e_map = Library.default.deep_entries.to_h { |entry| {entry.id, entry} }
+    entries = [] of Entry
+    begin
+      ids.each do |id|
+        entries << e_map[id]
+      end
+      return entries if ids.size == entries.size
+    rescue
+    end
+  end
+
+  def instance_size
+    instance_sizeof(SortedEntriesCacheEntry) +  # sizeof itself
+      instance_sizeof(String) + @key.bytesize + # allocated memory for @key
+      @value.size * (instance_sizeof(String) + sizeof(String)) +
+      @value.sum(&.bytesize) # elements in Array(String)
+  end
+
+  def self.gen_key(book_id : String, username : String,
+                   entries : Array(Entry), opt : SortOptions?)
+    entries_sig = Digest::SHA1.hexdigest (entries.map &.id).to_s
+    user_context = opt && opt.method == SortMethod::Progress ? username : ""
+    sig = Digest::SHA1.hexdigest (book_id + entries_sig + user_context +
+                                  (opt ? opt.to_tuple.to_s : "nil"))
+    "#{sig}:sorted_entries"
+  end
+end
+
+class String
+  def instance_size
+    instance_sizeof(String) + bytesize
+  end
+end
+
+struct Tuple(*T)
+  def instance_size
+    sizeof(T) + # total size of non-reference types
+      self.sum do |e|
+        next 0 unless e.is_a? Reference
+        if e.responds_to? :instance_size
+          e.instance_size
+        else
+          instance_sizeof(typeof(e))
+        end
+      end
+  end
+end
+
+alias CacheableType = Array(Entry) | String | Tuple(String, Int32)
+alias CacheEntryType = SortedEntriesCacheEntry |
+                       CacheEntry(String, String) |
+                       CacheEntry(Tuple(String, Int32), Tuple(String, Int32))
+
+def generate_cache_entry(key : String, value : CacheableType)
+  if value.is_a? Array(Entry)
+    SortedEntriesCacheEntry.new key, value
+  else
+    CacheEntry(typeof(value), typeof(value)).new key, value
+  end
+end
+
+# LRU Cache
+class LRUCache
+  @@limit : Int128 = Int128.new 0
+  @@should_log = true
+  # key => entry
+  @@cache = {} of String => CacheEntryType
+
+  def self.enabled
+    Config.current.cache_enabled
+  end
+
+  def self.init
+    cache_size = Config.current.cache_size_mbs
+    @@limit = Int128.new cache_size * 1024 * 1024 if enabled
+    @@should_log = Config.current.cache_log_enabled
+  end
+
+  def self.get(key : String)
+    return unless enabled
+    entry = @@cache[key]?
+    if @@should_log
+      Logger.debug "LRUCache #{entry.nil? ? "miss" : "hit"} #{key}"
+    end
+    return entry.value unless entry.nil?
+  end
+
+  def self.set(cache_entry : CacheEntryType)
+    return unless enabled
+    key = cache_entry.key
+    @@cache[key] = cache_entry
+    Logger.debug "LRUCache cached #{key}" if @@should_log
+    remove_least_recent_access
+  end
+
+  def self.invalidate(key : String)
+    return unless enabled
+    @@cache.delete key
+  end
+
+  def self.print
+    return unless @@should_log
+    sum = @@cache.sum { |_, entry| entry.instance_size }
+    Logger.debug "---- LRU Cache ----"
+    Logger.debug "Size: #{sum} Bytes"
+    Logger.debug "List:"
+    @@cache.each do |k, v|
+      Logger.debug "#{k} | #{v.atime} | #{v.instance_size}"
+    end
+    Logger.debug "-------------------"
+  end
+
+  private def self.is_cache_full
+    sum = @@cache.sum { |_, entry| entry.instance_size }
+    sum > @@limit
+  end
+
+  private def self.remove_least_recent_access
+    if @@should_log && is_cache_full
+      Logger.debug "Removing entries from LRUCache"
+    end
+    while is_cache_full && @@cache.size > 0
+      min_tuple = @@cache.min_by { |_, entry| entry.atime }
+      min_key = min_tuple[0]
+      min_entry = min_tuple[1]
+
+      Logger.debug "  \
+        Target: #{min_key}, \
+        Last Access Time: #{min_entry.atime}" if @@should_log
+      invalidate min_key
+    end
+  end
+end
--- a/src/library/entry.cr
+++ b/src/library/entry.cr
@@ -1,6 +1,9 @@
 require "image_size"
+require "yaml"

 class Entry
+  include YAML::Serializable
+
  getter zip_path : String, book : Title, title : String,
    size : String, pages : Int32, id : String, encoded_path : String,
    encoded_title : String, mtime : Time, err_msg : String?
@@ -46,16 +49,20 @@ class Entry
    file.close
  end

-  def to_json(json : JSON::Builder)
-    json.object do
-      {% for str in ["zip_path", "title", "size", "id"] %}
+  def build_json(*, slim = false)
+    JSON.build do |json|
+      json.object do
+        {% for str in ["zip_path", "title", "size", "id"] %}
        json.field {{str}}, @{{str.id}}
      {% end %}
-      json.field "title_id", @book.id
-      json.field "display_name", @book.display_name @title
-      json.field "cover_url", cover_url
-      json.field "pages" { json.number @pages }
-      json.field "mtime" { json.number @mtime.to_unix }
+        json.field "title_id", @book.id
+        json.field "pages" { json.number @pages }
+        unless slim
+          json.field "display_name", @book.display_name @title
+          json.field "cover_url", cover_url
+          json.field "mtime" { json.number @mtime.to_unix }
+        end
+      end
    end
  end

@@ -69,9 +76,17 @@ class Entry

  def cover_url
    return "#{Config.current.base_url}img/icon.png" if @err_msg
+
+    unless @book.entry_cover_url_cache
+      TitleInfo.new @book.dir do |info|
+        @book.entry_cover_url_cache = info.entry_cover_url
+      end
+    end
+    entry_cover_url = @book.entry_cover_url_cache
+
    url = "#{Config.current.base_url}api/cover/#{@book.id}/#{@id}"
-    TitleInfo.new @book.dir do |info|
-      info_url = info.entry_cover_url[@title]?
+    if entry_cover_url
+      info_url = entry_cover_url[@title]?
      unless info_url.nil? || info_url.empty?
        url = File.join Config.current.base_url, info_url
      end
@@ -86,7 +101,7 @@ class Entry
          SUPPORTED_IMG_TYPES.includes? \
            MIME.from_filename? e.filename
        }
-        .sort { |a, b|
+        .sort! { |a, b|
          compare_numerically a.filename, b.filename
        }
      yield file, entries
@@ -158,6 +173,16 @@ class Entry
  # For backward backward compatibility with v0.1.0, we save entry titles
  #   instead of IDs in info.json
  def save_progress(username, page)
+    LRUCache.invalidate "#{@book.id}:#{username}:progress_sum"
+    @book.parents.each do |parent|
+      LRUCache.invalidate "#{parent.id}:#{username}:progress_sum"
+    end
+    [false, true].each do |ascend|
+      sorted_entries_cache_key = SortedEntriesCacheEntry.gen_key @book.id,
+        username, @book.entries, SortOptions.new(SortMethod::Progress, ascend)
+      LRUCache.invalidate sorted_entries_cache_key
+    end
+
    TitleInfo.new @book.dir do |info|
      if info.progress[username]?.nil?
        info.progress[username] = {@title => page}
--- a/src/library/library.cr
+++ b/src/library/library.cr
@@ -1,12 +1,38 @@
 class Library
+  include YAML::Serializable
+
  getter dir : String, title_ids : Array(String),
    title_hash : Hash(String, Title)

  use_default

-  def initialize
-    register_mime_types
+  def save_instance
+    path = Config.current.library_cache_path
+    Logger.debug "Caching library to #{path}"

+    writer = Compress::Gzip::Writer.new path,
+      Compress::Gzip::BEST_COMPRESSION
+    writer.write self.to_yaml.to_slice
+    writer.close
+  end
+
+  def self.load_instance
+    path = Config.current.library_cache_path
+    return unless File.exists? path
+
+    Logger.debug "Loading cached library from #{path}"
+
+    begin
+      Compress::Gzip::Reader.open path do |content|
+        @@default = Library.from_yaml content
+      end
+      Library.default.register_jobs
+    rescue e
+      Logger.error e
+    end
+  end
+
+  def initialize
    @dir = Config.current.library_path
    # explicitly initialize @titles to bypass the compiler check. it will
    #   be filled with actual Titles in the `scan` call below
@@ -16,6 +42,12 @@ class Library
    @entries_count = 0
    @thumbnails_count = 0

+    register_jobs
+  end
+
+  protected def register_jobs
+    register_mime_types
+
    scan_interval = Config.current.scan_interval_minutes
    if scan_interval < 1
      scan
@@ -25,7 +57,7 @@ class Library
          start = Time.local
          scan
          ms = (Time.local - start).total_milliseconds
-          Logger.info "Scanned #{@title_ids.size} titles in #{ms}ms"
+          Logger.debug "Library initialized in #{ms}ms"
          sleep scan_interval.minutes
        end
      end
@@ -51,11 +83,6 @@ class Library
  def sorted_titles(username, opt : SortOptions? = nil)
    if opt.nil?
      opt = SortOptions.from_info_json @dir, username
-    else
-      TitleInfo.new @dir do |info|
-        info.sort_by[username] = opt.to_tuple
-        info.save
-      end
    end

    # Helper function from src/util/util.cr
@@ -63,14 +90,24 @@ class Library
  end

  def deep_titles
-    titles + titles.map { |t| t.deep_titles }.flatten
+    titles + titles.flat_map &.deep_titles
  end

-  def to_json(json : JSON::Builder)
-    json.object do
-      json.field "dir", @dir
-      json.field "titles" do
-        json.raw self.titles.to_json
+  def deep_entries
+    titles.flat_map &.deep_entries
+  end
+
+  def build_json(*, slim = false, depth = -1)
+    JSON.build do |json|
+      json.object do
+        json.field "dir", @dir
+        json.field "titles" do
+          json.array do
+            self.titles.each do |title|
+              json.raw title.build_json(slim: slim, depth: depth)
+            end
+          end
+        end
      end
    end
  end
@@ -84,6 +121,7 @@ class Library
  end

  def scan
+    start = Time.local
    unless Dir.exists? @dir
      Logger.info "The library directory #{@dir} does not exist. " \
                  "Attempting to create it"
@@ -92,14 +130,36 @@ class Library

    storage = Storage.new auto_close: false

+    examine_context : ExamineContext = {
+      cached_contents_signature: {} of String => String,
+      deleted_title_ids:         [] of String,
+      deleted_entry_ids:         [] of String,
+    }
+
+    @title_ids.select! do |title_id|
+      title = @title_hash[title_id]
+      existence = title.examine examine_context
+      unless existence
+        examine_context["deleted_title_ids"].concat [title_id] +
+                                                    title.deep_titles.map &.id
+        examine_context["deleted_entry_ids"].concat title.deep_entries.map &.id
+      end
+      existence
+    end
+    remained_title_dirs = @title_ids.map { |id| title_hash[id].dir }
+    examine_context["deleted_title_ids"].each do |title_id|
+      @title_hash.delete title_id
+    end
+
+    cache = examine_context["cached_contents_signature"]
    (Dir.entries @dir)
      .select { |fn| !fn.starts_with? "." }
      .map { |fn| File.join @dir, fn }
+      .select { |path| !(remained_title_dirs.includes? path) }
      .select { |path| File.directory? path }
-      .map { |path| Title.new path, "" }
+      .map { |path| Title.new path, "", cache }
      .select { |title| !(title.entries.empty? && title.titles.empty?) }
-      .sort { |a, b| a.title <=> b.title }
-      .tap { |_| @title_ids.clear }
+      .sort! { |a, b| a.title <=> b.title }
      .each do |title|
        @title_hash[title.id] = title
        @title_ids << title.id
@@ -108,13 +168,20 @@ class Library
    storage.bulk_insert_ids
    storage.close

-    Logger.debug "Scan completed"
-    Storage.default.mark_unavailable
+    ms = (Time.local - start).total_milliseconds
+    Logger.info "Scanned #{@title_ids.size} titles in #{ms}ms"
+
+    Storage.default.mark_unavailable examine_context["deleted_entry_ids"],
+      examine_context["deleted_title_ids"]
+
+    spawn do
+      save_instance
+    end
  end

  def get_continue_reading_entries(username)
    cr_entries = deep_titles
-      .map { |t| t.get_last_read_entry username }
+      .map(&.get_last_read_entry username)
      # Select elements with type `Entry` from the array and ignore all `Nil`s
      .select(Entry)[0...ENTRIES_IN_HOME_SECTIONS]
      .map { |e|
@@ -150,14 +217,14 @@ class Library
    recently_added = [] of RA
    last_date_added = nil

-    titles.map { |t| t.deep_entries_with_date_added }.flatten
-      .select { |e| e[:date_added] > 1.month.ago }
-      .sort { |a, b| b[:date_added] <=> a[:date_added] }
+    titles.flat_map(&.deep_entries_with_date_added)
+      .select(&.[:date_added].> 1.month.ago)
+      .sort! { |a, b| b[:date_added] <=> a[:date_added] }
      .each do |e|
        break if recently_added.size > 12
        last = recently_added.last?
        if last && e[:entry].book.id == last[:entry].book.id &&
-           (e[:date_added] - last_date_added.not_nil!).duration < 1.day
+           (e[:date_added] - last_date_added.not_nil!).abs < 1.day
          # A NamedTuple is immutable, so we have to cast it to a Hash first
          last_hash = last.to_h
          count = last_hash[:grouped_count].as(Int32)
@@ -188,9 +255,9 @@ class Library
    # If we use `deep_titles`, the start reading section might include `Vol. 2`
    #   when the user hasn't started `Vol. 1` yet
    titles
-      .select { |t| t.load_percentage(username) == 0 }
+      .select(&.load_percentage(username).== 0)
      .sample(ENTRIES_IN_HOME_SECTIONS)
-      .shuffle
+      .shuffle!
  end

  def thumbnail_generation_progress
@@ -205,7 +272,7 @@ class Library
    end

    Logger.info "Starting thumbnail generation"
-    entries = deep_titles.map(&.deep_entries).flatten.reject &.err_msg
+    entries = deep_titles.flat_map(&.deep_entries).reject &.err_msg
    @entries_count = entries.size
    @thumbnails_count = 0

--- a/src/library/title.cr
+++ b/src/library/title.cr
@@ -1,13 +1,25 @@
+require "digest"
 require "../archive"

 class Title
+  include YAML::Serializable
+
  getter dir : String, parent_id : String, title_ids : Array(String),
    entries : Array(Entry), title : String, id : String,
-    encoded_title : String, mtime : Time, signature : UInt64
+    encoded_title : String, mtime : Time, signature : UInt64,
+    entry_cover_url_cache : Hash(String, String)?
+  setter entry_cover_url_cache : Hash(String, String)?

+  @[YAML::Field(ignore: true)]
  @entry_display_name_cache : Hash(String, String)?
+  @[YAML::Field(ignore: true)]
+  @entry_cover_url_cache : Hash(String, String)?
+  @[YAML::Field(ignore: true)]
+  @cached_display_name : String?
+  @[YAML::Field(ignore: true)]
+  @cached_cover_url : String?

-  def initialize(@dir : String, @parent_id)
+  def initialize(@dir : String, @parent_id, cache = {} of String => String)
    storage = Storage.default
    @signature = Dir.signature dir
    id = storage.get_title_id dir, signature
@@ -20,6 +32,7 @@ class Title
      })
    end
    @id = id
+    @contents_signature = Dir.contents_signature dir, cache
    @title = File.basename dir
    @encoded_title = URI.encode @title
    @title_ids = [] of String
@@ -30,7 +43,7 @@ class Title
      next if fn.starts_with? "."
      path = File.join dir, fn
      if File.directory? path
-        title = Title.new path, @id
+        title = Title.new path, @id, cache
        next if title.entries.size == 0 && title.titles.size == 0
        Library.default.title_hash[title.id] = title
        @title_ids << title.id
@@ -44,40 +57,164 @@ class Title

    mtimes = [@mtime]
    mtimes += @title_ids.map { |e| Library.default.title_hash[e].mtime }
-    mtimes += @entries.map { |e| e.mtime }
+    mtimes += @entries.map &.mtime
    @mtime = mtimes.max

    @title_ids.sort! do |a, b|
      compare_numerically Library.default.title_hash[a].title,
        Library.default.title_hash[b].title
    end
-    sorter = ChapterSorter.new @entries.map { |e| e.title }
+    sorter = ChapterSorter.new @entries.map &.title
    @entries.sort! do |a, b|
      sorter.compare a.title, b.title
    end
  end

-  def to_json(json : JSON::Builder)
-    json.object do
-      {% for str in ["dir", "title", "id"] %}
+  # Utility method used in library rescanning.
+  # - When the title does not exist on the file system anymore, return false
+  #     and let it be deleted from the library instance
+  # - When the title exists, but its contents signature is now different from
+  #     the cache, it means some of its content (nested titles or entries)
+  #     has been added, deleted, or renamed. In this case we update its
+  #     contents signature and instance variables
+  # - When the title exists and its contents signature is still the same, we
+  #     return true so it can be reused without rescanning
+  def examine(context : ExamineContext) : Bool
+    return false unless Dir.exists? @dir
+    contents_signature = Dir.contents_signature @dir,
+      context["cached_contents_signature"]
+    return true if @contents_signature == contents_signature
+
+    @contents_signature = contents_signature
+    @signature = Dir.signature @dir
+    storage = Storage.default
+    id = storage.get_title_id dir, signature
+    if id.nil?
+      id = random_str
+      storage.insert_title_id({
+        path:      dir,
+        id:        id,
+        signature: signature.to_s,
+      })
+    end
+    @id = id
+    @mtime = File.info(@dir).modification_time
+
+    previous_titles_size = @title_ids.size
+    @title_ids.select! do |title_id|
+      title = Library.default.get_title! title_id
+      existence = title.examine context
+      unless existence
+        context["deleted_title_ids"].concat [title_id] +
+                                            title.deep_titles.map &.id
+        context["deleted_entry_ids"].concat title.deep_entries.map &.id
+      end
+      existence
+    end
+    remained_title_dirs = @title_ids.map do |title_id|
+      title = Library.default.get_title! title_id
+      title.dir
+    end
+
+    previous_entries_size = @entries.size
+    @entries.select! do |entry|
+      existence = File.exists? entry.zip_path
+      Fiber.yield
+      context["deleted_entry_ids"] << entry.id unless existence
+      existence
+    end
+    remained_entry_zip_paths = @entries.map &.zip_path
+
+    is_titles_added = false
+    is_entries_added = false
+    Dir.entries(dir).each do |fn|
+      next if fn.starts_with? "."
+      path = File.join dir, fn
+      if File.directory? path
+        next if remained_title_dirs.includes? path
+        title = Title.new path, @id, context["cached_contents_signature"]
+        next if title.entries.size == 0 && title.titles.size == 0
+        Library.default.title_hash[title.id] = title
+        @title_ids << title.id
+        is_titles_added = true
+        next
+      end
+      if is_supported_file path
+        next if remained_entry_zip_paths.includes? path
+        entry = Entry.new path, self
+        if entry.pages > 0 || entry.err_msg
+          @entries << entry
+          is_entries_added = true
+        end
+      end
+    end
+
+    mtimes = [@mtime]
+    mtimes += @title_ids.map { |e| Library.default.title_hash[e].mtime }
+    mtimes += @entries.map &.mtime
+    @mtime = mtimes.max
+
+    if is_titles_added || previous_titles_size != @title_ids.size
+      @title_ids.sort! do |a, b|
+        compare_numerically Library.default.title_hash[a].title,
+          Library.default.title_hash[b].title
+      end
+    end
+    if is_entries_added || previous_entries_size != @entries.size
+      sorter = ChapterSorter.new @entries.map &.title
+      @entries.sort! do |a, b|
+        sorter.compare a.title, b.title
+      end
+    end
+
+    true
+  end
+
+  alias SortContext = NamedTuple(username: String, opt: SortOptions)
+
+  def build_json(*, slim = false, depth = -1,
+                 sort_context : SortContext? = nil)
+    JSON.build do |json|
+      json.object do
+        {% for str in ["dir", "title", "id"] %}
        json.field {{str}}, @{{str.id}}
      {% end %}
-      json.field "signature" { json.number @signature }
-      json.field "display_name", display_name
-      json.field "cover_url", cover_url
-      json.field "mtime" { json.number @mtime.to_unix }
-      json.field "titles" do
-        json.raw self.titles.to_json
-      end
-      json.field "entries" do
-        json.raw @entries.to_json
-      end
-      json.field "parents" do
-        json.array do
-          self.parents.each do |title|
-            json.object do
-              json.field "title", title.title
-              json.field "id", title.id
+        json.field "signature" { json.number @signature }
+        unless slim
+          json.field "display_name", display_name
+          json.field "cover_url", cover_url
+          json.field "mtime" { json.number @mtime.to_unix }
+        end
+        unless depth == 0
+          json.field "titles" do
+            json.array do
+              self.titles.each do |title|
+                json.raw title.build_json(slim: slim,
+                  depth: depth > 0 ? depth - 1 : depth)
+              end
+            end
+          end
+          json.field "entries" do
+            json.array do
+              _entries = if sort_context
+                           sorted_entries sort_context[:username],
+                             sort_context[:opt]
+                         else
+                           @entries
+                         end
+              _entries.each do |entry|
+                json.raw entry.build_json(slim: slim)
+              end
+            end
+          end
+        end
+        json.field "parents" do
+          json.array do
+            self.parents.each do |title|
+              json.object do
+                json.field "title", title.title
+                json.field "id", title.id
+              end
            end
          end
        end
@@ -92,12 +229,12 @@ class Title
  # Get all entries, including entries in nested titles
  def deep_entries
    return @entries if title_ids.empty?
-    @entries + titles.map { |t| t.deep_entries }.flatten
+    @entries + titles.flat_map &.deep_entries
  end

  def deep_titles
    return [] of Title if titles.empty?
-    titles + titles.map { |t| t.deep_titles }.flatten
+    titles + titles.flat_map &.deep_titles
  end

  def parents
@@ -138,15 +275,19 @@ class Title
  end

  def get_entry(eid)
-    @entries.find { |e| e.id == eid }
+    @entries.find &.id.== eid
  end

  def display_name
+    cached_display_name = @cached_display_name
+    return cached_display_name unless cached_display_name.nil?
+
    dn = @title
    TitleInfo.new @dir do |info|
      info_dn = info.display_name
      dn = info_dn unless info_dn.empty?
    end
+    @cached_display_name = dn
    dn
  end

@@ -170,6 +311,7 @@ class Title
  end

  def set_display_name(dn)
+    @cached_display_name = dn
    TitleInfo.new @dir do |info|
      info.display_name = dn
      info.save
@@ -179,11 +321,15 @@ class Title
  def set_display_name(entry_name : String, dn)
    TitleInfo.new @dir do |info|
      info.entry_display_name[entry_name] = dn
+      @entry_display_name_cache = info.entry_display_name
      info.save
    end
  end

  def cover_url
+    cached_cover_url = @cached_cover_url
+    return cached_cover_url unless cached_cover_url.nil?
+
    url = "#{Config.current.base_url}img/icon.png"
    readable_entries = @entries.select &.err_msg.nil?
    if readable_entries.size > 0
@@ -195,10 +341,12 @@ class Title
        url = File.join Config.current.base_url, info_url
      end
    end
+    @cached_cover_url = url
    url
  end

  def set_cover_url(url : String)
+    @cached_cover_url = url
    TitleInfo.new @dir do |info|
      info.cover_url = url
      info.save
@@ -208,6 +356,7 @@ class Title
  def set_cover_url(entry_name : String, url : String)
    TitleInfo.new @dir do |info|
      info.entry_cover_url[entry_name] = url
+      @entry_cover_url_cache = info.entry_cover_url
      info.save
    end
  end
@@ -217,29 +366,30 @@ class Title
    @entries.each do |e|
      e.save_progress username, e.pages
    end
-    titles.each do |t|
-      t.read_all username
-    end
+    titles.each &.read_all username
  end

  # Set the reading progress of all entries and nested libraries to 0%
  def unread_all(username)
-    @entries.each do |e|
-      e.save_progress username, 0
-    end
-    titles.each do |t|
-      t.unread_all username
-    end
+    @entries.each &.save_progress(username, 0)
+    titles.each &.unread_all username
  end

  def deep_read_page_count(username) : Int32
-    load_progress_for_all_entries(username).sum +
-      titles.map { |t| t.deep_read_page_count username }.flatten.sum
+    key = "#{@id}:#{username}:progress_sum"
+    sig = Digest::SHA1.hexdigest (entries.map &.id).to_s
+    cached_sum = LRUCache.get key
+    return cached_sum[1] if cached_sum.is_a? Tuple(String, Int32) &&
+                            cached_sum[0] == sig
+    sum = load_progress_for_all_entries(username, nil, true).sum +
+          titles.flat_map(&.deep_read_page_count username).sum
+    LRUCache.set generate_cache_entry key, {sig, sum}
+    sum
  end

  def deep_total_page_count : Int32
-    entries.map { |e| e.pages }.sum +
-      titles.map { |t| t.deep_total_page_count }.flatten.sum
+    entries.sum(&.pages) +
+      titles.flat_map(&.deep_total_page_count).sum
  end

  def load_percentage(username)
@@ -288,13 +438,12 @@ class Title
  #   use the default (auto, ascending)
  # When `opt` is not nil, it saves the options to info.json
  def sorted_entries(username, opt : SortOptions? = nil)
+    cache_key = SortedEntriesCacheEntry.gen_key @id, username, @entries, opt
+    cached_entries = LRUCache.get cache_key
+    return cached_entries if cached_entries.is_a? Array(Entry)
+
    if opt.nil?
      opt = SortOptions.from_info_json @dir, username
-    else
-      TitleInfo.new @dir do |info|
-        info.sort_by[username] = opt.to_tuple
-        info.save
-      end
    end

    case opt.not_nil!.method
@@ -311,13 +460,13 @@ class Title
      ary = @entries.zip(percentage_ary)
        .sort { |a_tp, b_tp| (a_tp[1] <=> b_tp[1]).or \
          compare_numerically a_tp[0].title, b_tp[0].title }
-        .map { |tp| tp[0] }
+        .map &.[0]
    else
      unless opt.method.auto?
        Logger.warn "Unknown sorting method #{opt.not_nil!.method}. Using " \
                    "Auto instead"
      end
-      sorter = ChapterSorter.new @entries.map { |e| e.title }
+      sorter = ChapterSorter.new @entries.map &.title
      ary = @entries.sort do |a, b|
        sorter.compare(a.title, b.title).or \
          compare_numerically a.title, b.title
@@ -326,6 +475,7 @@ class Title

    ary.reverse! unless opt.not_nil!.ascend

+    LRUCache.set generate_cache_entry cache_key, ary
    ary
  end

@@ -383,13 +533,24 @@ class Title
      {entry: e, date_added: da_ary[i]}
    end
    return zip if title_ids.empty?
-    zip + titles.map { |t| t.deep_entries_with_date_added }.flatten
+    zip + titles.flat_map &.deep_entries_with_date_added
  end

  def bulk_progress(action, ids : Array(String), username)
+    LRUCache.invalidate "#{@id}:#{username}:progress_sum"
+    parents.each do |parent|
+      LRUCache.invalidate "#{parent.id}:#{username}:progress_sum"
+    end
+    [false, true].each do |ascend|
+      sorted_entries_cache_key =
+        SortedEntriesCacheEntry.gen_key @id, username, @entries,
+          SortOptions.new(SortMethod::Progress, ascend)
+      LRUCache.invalidate sorted_entries_cache_key
+    end
+
    selected_entries = ids
      .map { |id|
-        @entries.find { |e| e.id == id }
+        @entries.find &.id.==(id)
      }
      .select(Entry)

--- a/src/library/types.cr
+++ b/src/library/types.cr
@@ -1,4 +1,12 @@
-SUPPORTED_IMG_TYPES = ["image/jpeg", "image/png", "image/webp"]
+SUPPORTED_IMG_TYPES = %w(
+  image/jpeg
+  image/png
+  image/webp
+  image/apng
+  image/avif
+  image/gif
+  image/svg+xml
+)

 enum SortMethod
  Auto
@@ -88,6 +96,18 @@ class TitleInfo
  @@mutex_hash = {} of String => Mutex

  def self.new(dir, &)
+    key = "#{dir}:info.json"
+    info = LRUCache.get key
+    if info.is_a? String
+      begin
+        instance = TitleInfo.from_json info
+        instance.dir = dir
+        yield instance
+        return
+      rescue
+      end
+    end
+
    if @@mutex_hash[dir]?
      mutex = @@mutex_hash[dir]
    else
@@ -101,6 +121,7 @@ class TitleInfo
        instance = TitleInfo.from_json File.read json_path
      end
      instance.dir = dir
+      LRUCache.set generate_cache_entry key, instance.to_json
      yield instance
    end
  end
@@ -108,5 +129,12 @@ class TitleInfo
  def save
    json_path = File.join @dir, "info.json"
    File.write json_path, self.to_pretty_json
+    key = "#{@dir}:info.json"
+    LRUCache.set generate_cache_entry key, self.to_json
  end
 end
+
+alias ExamineContext = NamedTuple(
+  cached_contents_signature: Hash(String, String),
+  deleted_title_ids: Array(String),
+  deleted_entry_ids: Array(String))
--- a/src/logger.cr
+++ b/src/logger.cr
@@ -34,7 +34,11 @@ class Logger
    end

    @backend.formatter = Log::Formatter.new &format_proc
-    Log.setup @@severity, @backend
+
+    Log.setup do |c|
+      c.bind "*", @@severity, @backend
+      c.bind "db.*", :error, @backend
+    end
  end

  def self.get_severity(level = "") : Log::Severity
--- a/src/mangadex/downloader.cr
+++ b/src/mangadex/downloader.cr
@@ -1,169 +0,0 @@
-require "mangadex"
-require "compress/zip"
-require "../rename"
-require "./ext"
-
-module MangaDex
-  class PageJob
-    property success = false
-    property url : String
-    property filename : String
-    property writer : Compress::Zip::Writer
-    property tries_remaning : Int32
-
-    def initialize(@url, @filename, @writer, @tries_remaning)
-    end
-  end
-
-  class Downloader < Queue::Downloader
-    @wait_seconds : Int32 = Config.current.mangadex["download_wait_seconds"]
-      .to_i32
-    @retries : Int32 = Config.current.mangadex["download_retries"].to_i32
-
-    use_default
-
-    def initialize
-      @client = Client.from_config
-      super
-    end
-
-    def pop : Queue::Job?
-      job = nil
-      MainFiber.run do
-        DB.open "sqlite3://#{@queue.path}" do |db|
-          begin
-            db.query_one "select * from queue where id not like '%-%' " \
-                         "and (status = 0 or status = 1) " \
-                         "order by time limit 1" do |res|
-              job = Queue::Job.from_query_result res
-            end
-          rescue
-          end
-        end
-      end
-      job
-    end
-
-    private def download(job : Queue::Job)
-      @downloading = true
-      @queue.set_status Queue::JobStatus::Downloading, job
-      begin
-        chapter = @client.chapter job.id
-      rescue e
-        Logger.error e
-        @queue.set_status Queue::JobStatus::Error, job
-        unless e.message.nil?
-          @queue.add_message e.message.not_nil!, job
-        end
-        @downloading = false
-        return
-      end
-      @queue.set_pages chapter.pages.size, job
-      lib_dir = @library_path
-      rename_rule = Rename::Rule.new \
-        Config.current.mangadex["manga_rename_rule"].to_s
-      manga_dir = File.join lib_dir, chapter.manga.rename rename_rule
-      unless File.exists? manga_dir
-        Dir.mkdir_p manga_dir
-      end
-      zip_path = File.join manga_dir, "#{job.title}.cbz.part"
-
-      # Find the number of digits needed to store the number of pages
-      len = Math.log10(chapter.pages.size).to_i + 1
-
-      writer = Compress::Zip::Writer.new zip_path
-      # Create a buffered channel. It works as an FIFO queue
-      channel = Channel(PageJob).new chapter.pages.size
-      spawn do
-        chapter.pages.each_with_index do |url, i|
-          fn = Path.new(URI.parse(url).path).basename
-          ext = File.extname fn
-          fn = "#{i.to_s.rjust len, '0'}#{ext}"
-          page_job = PageJob.new url, fn, writer, @retries
-          Logger.debug "Downloading #{url}"
-          loop do
-            sleep @wait_seconds.seconds
-            download_page page_job
-            break if page_job.success ||
-                     page_job.tries_remaning <= 0
-            page_job.tries_remaning -= 1
-            Logger.warn "Failed to download page #{url}. " \
-                        "Retrying... Remaining retries: " \
-                        "#{page_job.tries_remaning}"
-          end
-
-          channel.send page_job
-          break unless @queue.exists? job
-        end
-      end
-
-      spawn do
-        page_jobs = [] of PageJob
-        chapter.pages.size.times do
-          page_job = channel.receive
-
-          break unless @queue.exists? job
-
-          Logger.debug "[#{page_job.success ? "success" : "failed"}] " \
-                       "#{page_job.url}"
-          page_jobs << page_job
-          if page_job.success
-            @queue.add_success job
-          else
-            @queue.add_fail job
-            msg = "Failed to download page #{page_job.url}"
-            @queue.add_message msg, job
-            Logger.error msg
-          end
-        end
-
-        unless @queue.exists? job
-          Logger.debug "Download cancelled"
-          @downloading = false
-          next
-        end
-
-        fail_count = page_jobs.count { |j| !j.success }
-        Logger.debug "Download completed. " \
-                     "#{fail_count}/#{page_jobs.size} failed"
-        writer.close
-        filename = File.join File.dirname(zip_path), File.basename(zip_path,
-          ".part")
-        File.rename zip_path, filename
-        Logger.debug "cbz File created at #{filename}"
-
-        zip_exception = validate_archive filename
-        if !zip_exception.nil?
-          @queue.add_message "The downloaded archive is corrupted. " \
-                             "Error: #{zip_exception}", job
-          @queue.set_status Queue::JobStatus::Error, job
-        elsif fail_count > 0
-          @queue.set_status Queue::JobStatus::MissingPages, job
-        else
-          @queue.set_status Queue::JobStatus::Completed, job
-        end
-        @downloading = false
-      end
-    end
-
-    private def download_page(job : PageJob)
-      Logger.debug "downloading #{job.url}"
-      headers = HTTP::Headers{
-        "User-agent" => "Mangadex.cr",
-      }
-      begin
-        HTTP::Client.get job.url, headers do |res|
-          unless res.success?
-            raise "Failed to download page #{job.url}. " \
-                  "[#{res.status_code}] #{res.status_message}"
-          end
-          job.writer.add job.filename, res.body_io
-        end
-        job.success = true
-      rescue e
-        Logger.error e
-        job.success = false
-      end
-    end
-  end
-end
--- a/src/mangadex/ext.cr
+++ b/src/mangadex/ext.cr
@@ -1,60 +0,0 @@
-private macro properties_to_hash(names)
-  {
-    {% for name in names %}
-      "{{name.id}}" => {{name.id}}.to_s,
-    {% end %}
-  }
-end
-
-# Monkey-patch the structures in the `mangadex` shard to suit our needs
-module MangaDex
-  struct Client
-    @@group_cache = {} of String => Group
-
-    def self.from_config : Client
-      self.new base_url: Config.current.mangadex["base_url"].to_s,
-        api_url: Config.current.mangadex["api_url"].to_s
-    end
-  end
-
-  struct Manga
-    def rename(rule : Rename::Rule)
-      rule.render properties_to_hash %w(id title author artist)
-    end
-
-    def to_info_json
-      hash = JSON.parse(to_json).as_h
-      _chapters = chapters.map do |c|
-        JSON.parse c.to_info_json
-      end
-      hash["chapters"] = JSON::Any.new _chapters
-      hash.to_json
-    end
-  end
-
-  struct Chapter
-    def rename(rule : Rename::Rule)
-      hash = properties_to_hash %w(id title volume chapter lang_code language)
-      hash["groups"] = groups.map(&.name).join ","
-      rule.render hash
-    end
-
-    def full_title
-      rule = Rename::Rule.new \
-        Config.current.mangadex["chapter_rename_rule"].to_s
-      rename rule
-    end
-
-    def to_info_json
-      hash = JSON.parse(to_json).as_h
-      hash["language"] = JSON::Any.new language
-      _groups = {} of String => JSON::Any
-      groups.each do |g|
-        _groups[g.name] = JSON::Any.new g.id
-      end
-      hash["groups"] = JSON::Any.new _groups
-      hash["full_title"] = JSON::Any.new full_title
-      hash.to_json
-    end
-  end
-end
--- a/src/mango.cr
+++ b/src/mango.cr
@@ -2,13 +2,12 @@ require "./config"
 require "./queue"
 require "./server"
 require "./main_fiber"
-require "./mangadex/*"
 require "./plugin/*"
 require "option_parser"
 require "clim"
 require "tallboy"

-MANGO_VERSION = "0.21.0"
+MANGO_VERSION = "0.24.0"

 # From http://www.network-science.de/ascii/
 BANNER = %{
@@ -56,10 +55,11 @@ class CLI < Clim
      Config.load(opts.config).set_current

      # Initialize main components
+      LRUCache.init
      Storage.default
      Queue.default
+      Library.load_instance
      Library.default
-      MangaDex::Downloader.default
      Plugin::Downloader.default

      spawn do
--- a/src/plugin/downloader.cr
+++ b/src/plugin/downloader.cr
@@ -23,11 +23,6 @@ class Plugin
      job
    end

-    private def process_filename(str)
-      return "_" if str == ".."
-      str.gsub "/", "_"
-    end
-
    private def download(job : Queue::Job)
      @downloading = true
      @queue.set_status Queue::JobStatus::Downloading, job
@@ -42,8 +37,8 @@ class Plugin

        pages = info["pages"].as_i

-        manga_title = process_filename job.manga_title
-        chapter_title = process_filename info["title"].as_s
+        manga_title = sanitize_filename job.manga_title
+        chapter_title = sanitize_filename info["title"].as_s

        @queue.set_pages pages, job
        lib_dir = @library_path
@@ -68,7 +63,7 @@ class Plugin
      while page = plugin.next_page
        break unless @queue.exists? job

-        fn = process_filename page["filename"].as_s
+        fn = sanitize_filename page["filename"].as_s
        url = page["url"].as_s
        headers = HTTP::Headers.new

--- a/src/plugin/plugin.cr
+++ b/src/plugin/plugin.cr
@@ -117,7 +117,7 @@ class Plugin
  def initialize(id : String)
    Plugin.build_info_ary

-    @info = @@info_ary.find { |i| i.id == id }
+    @info = @@info_ary.find &.id.== id
    if @info.nil?
      raise Error.new "Plugin with ID #{id} not found"
    end
--- a/src/queue.cr
+++ b/src/queue.cr
@@ -303,12 +303,12 @@ class Queue
  end

  def pause
-    @downloaders.each { |d| d.stopped = true }
+    @downloaders.each &.stopped=(true)
    @paused = true
  end

  def resume
-    @downloaders.each { |d| d.stopped = false }
+    @downloaders.each &.stopped=(false)
    @paused = false
  end

--- a/src/rename.cr
+++ b/src/rename.cr
@@ -35,15 +35,15 @@ module Rename

  class Group < Base(Pattern | String)
    def render(hash : VHash)
-      return "" if @ary.select(&.is_a? Pattern)
+      return "" if @ary.select(Pattern)
                     .any? &.as(Pattern).render(hash).empty?
-      @ary.map do |e|
+      @ary.join do |e|
        if e.is_a? Pattern
          e.render hash
        else
          e
        end
-      end.join
+      end
    end
  end

@@ -129,13 +129,13 @@ module Rename
    end

    def render(hash : VHash)
-      str = @ary.map do |e|
+      str = @ary.join do |e|
        if e.is_a? String
          e
        else
          e.render hash
        end
-      end.join.strip
+      end.strip
      post_process str
    end

--- a/src/routes/admin.cr
+++ b/src/routes/admin.cr
@@ -73,9 +73,5 @@ struct AdminRouter
    get "/admin/missing" do |env|
      layout "missing-items"
    end
-
-    get "/admin/mangadex" do |env|
-      layout "mangadex"
-    end
  end
 end
--- a/src/routes/api.cr
+++ b/src/routes/api.cr
@@ -1,6 +1,6 @@
-require "../mangadex/*"
 require "../upload"
 require "koa"
+require "digest"

 struct APIRouter
  @@api_json : String?
@@ -56,31 +56,20 @@ struct APIRouter
      "error"   => String?,
    }

-    Koa.schema("mdChapter", {
-      "id"    => Int64,
-      "group" => {} of String => String,
-    }.merge(s %w(title volume chapter language full_title time
-      manga_title manga_id)),
-      desc: "A MangaDex chapter")
-
-    Koa.schema "mdManga", {
-      "id"       => Int64,
-      "chapters" => ["mdChapter"],
-    }.merge(s %w(title description author artist cover_url)),
-      desc: "A MangaDex manga"
-
    Koa.describe "Returns a page in a manga entry"
    Koa.path "tid", desc: "Title ID"
    Koa.path "eid", desc: "Entry ID"
    Koa.path "page", schema: Int32, desc: "The page number to return (starts from 1)"
    Koa.response 200, schema: Bytes, media_type: "image/*"
    Koa.response 500, "Page not found or not readable"
+    Koa.response 304, "Page not modified (only available when `If-None-Match` is set)"
    Koa.tag "reader"
    get "/api/page/:tid/:eid/:page" do |env|
      begin
        tid = env.params.url["tid"]
        eid = env.params.url["eid"]
        page = env.params.url["page"].to_i
+        prev_e_tag = env.request.headers["If-None-Match"]?

        title = Library.default.get_title tid
        raise "Title ID `#{tid}` not found" if title.nil?
@@ -90,7 +79,15 @@ struct APIRouter
        raise "Failed to load page #{page} of " \
              "`#{title.title}/#{entry.title}`" if img.nil?

-        send_img env, img
+        e_tag = Digest::SHA1.hexdigest img.data
+        if prev_e_tag == e_tag
+          env.response.status_code = 304
+          ""
+        else
+          env.response.headers["ETag"] = e_tag
+          env.response.headers["Cache-Control"] = "public, max-age=86400"
+          send_img env, img
+        end
      rescue e
        Logger.error e
        env.response.status_code = 500
@@ -102,12 +99,14 @@ struct APIRouter
    Koa.path "tid", desc: "Title ID"
    Koa.path "eid", desc: "Entry ID"
    Koa.response 200, schema: Bytes, media_type: "image/*"
+    Koa.response 304, "Page not modified (only available when `If-None-Match` is set)"
    Koa.response 500, "Page not found or not readable"
    Koa.tag "library"
    get "/api/cover/:tid/:eid" do |env|
      begin
        tid = env.params.url["tid"]
        eid = env.params.url["eid"]
+        prev_e_tag = env.request.headers["If-None-Match"]?

        title = Library.default.get_title tid
        raise "Title ID `#{tid}` not found" if title.nil?
@@ -118,7 +117,14 @@ struct APIRouter
        raise "Failed to get cover of `#{title.title}/#{entry.title}`" \
           if img.nil?

-        send_img env, img
+        e_tag = Digest::SHA1.hexdigest img.data
+        if prev_e_tag == e_tag
+          env.response.status_code = 304
+          ""
+        else
+          env.response.headers["ETag"] = e_tag
+          send_img env, img
+        end
      rescue e
        Logger.error e
        env.response.status_code = 500
@@ -126,18 +132,39 @@ struct APIRouter
      end
    end

-    Koa.describe "Returns the book with title `tid`"
+    Koa.describe "Returns the book with title `tid`", <<-MD
+    - Supply the `slim` query parameter to strip away "display_name", "cover_url", and "mtime" from the returned object to speed up the loading time
+    - Supply the `depth` query parameter to control the depth of nested titles to return.
+      - When `depth` is 1, returns the top-level titles and sub-titles/entries one level in them
+      - When `depth` is 0, returns the top-level titles without their sub-titles/entries
+      - When `depth` is N, returns the top-level titles and sub-titles/entries N levels in them
+      - When `depth` is negative, returns the entire library
+    MD
    Koa.path "tid", desc: "Title ID"
+    Koa.query "slim"
+    Koa.query "depth"
+    Koa.query "sort", desc: "Sorting option for entries. Can be one of 'auto', 'title', 'progress', 'time_added' and 'time_modified'"
+    Koa.query "ascend", desc: "Sorting direction for entries. Set to 0 for the descending order. Doesn't work without specifying 'sort'"
    Koa.response 200, schema: "title"
    Koa.response 404, "Title not found"
    Koa.tag "library"
    get "/api/book/:tid" do |env|
      begin
+        username = get_username env
+
+        sort_opt = SortOptions.new
+        get_sort_opt
+
        tid = env.params.url["tid"]
        title = Library.default.get_title tid
        raise "Title ID `#{tid}` not found" if title.nil?

-        send_json env, title.to_json
+        slim = !env.params.query["slim"]?.nil?
+        depth = env.params.query["depth"]?.try(&.to_i?) || -1
+
+        send_json env, title.build_json(slim: slim, depth: depth,
+          sort_context: {username: username,
+                         opt:      sort_opt})
      rescue e
        Logger.error e
        env.response.status_code = 404
@@ -145,14 +172,26 @@ struct APIRouter
      end
    end

-    Koa.describe "Returns the entire library with all titles and entries"
+    Koa.describe "Returns the entire library with all titles and entries", <<-MD
+    - Supply the `slim` query parameter to strip away "display_name", "cover_url", and "mtime" from the returned object to speed up the loading time
+    - Supply the `dpeth` query parameter to control the depth of nested titles to return.
+      - When `depth` is 1, returns the requested title and sub-titles/entries one level in it
+      - When `depth` is 0, returns the requested title without its sub-titles/entries
+      - When `depth` is N, returns the requested title and sub-titles/entries N levels in it
+      - When `depth` is negative, returns the requested title and all sub-titles/entries in it
+    MD
+    Koa.query "slim"
+    Koa.query "depth"
    Koa.response 200, schema: {
      "dir"    => String,
      "titles" => ["title"],
    }
    Koa.tag "library"
    get "/api/library" do |env|
-      send_json env, Library.default.to_json
+      slim = !env.params.query["slim"]?.nil?
+      depth = env.params.query["depth"]?.try(&.to_i?) || -1
+
+      send_json env, Library.default.build_json(slim: slim, depth: depth)
    end

    Koa.describe "Triggers a library scan"
@@ -309,64 +348,12 @@ struct APIRouter
      end
    end

-    Koa.describe "Returns a MangaDex manga identified by `id`", <<-MD
-      On error, returns a JSON that contains the error message in the `error` field.
-    MD
-    Koa.tags ["admin", "mangadex"]
-    Koa.path "id", desc: "A MangaDex manga ID"
-    Koa.response 200, schema: "mdManga"
-    get "/api/admin/mangadex/manga/:id" do |env|
-      begin
-        id = env.params.url["id"]
-        manga = MangaDex::Client.from_config.manga id
-        send_json env, manga.to_info_json
-      rescue e
-        Logger.error e
-        send_json env, {"error" => e.message}.to_json
-      end
-    end
-
-    Koa.describe "Adds a list of MangaDex chapters to the download queue", <<-MD
-      On error, returns a JSON that contains the error message in the `error` field.
-    MD
-    Koa.tags ["admin", "mangadex", "downloader"]
-    Koa.body schema: {
-      "chapters" => ["mdChapter"],
-    }
-    Koa.response 200, schema: {
-      "success" => Int32,
-      "fail"    => Int32,
-    }
-    post "/api/admin/mangadex/download" do |env|
-      begin
-        chapters = env.params.json["chapters"].as(Array).map { |c| c.as_h }
-        jobs = chapters.map { |chapter|
-          Queue::Job.new(
-            chapter["id"].as_i64.to_s,
-            chapter["mangaId"].as_i64.to_s,
-            chapter["full_title"].as_s,
-            chapter["mangaTitle"].as_s,
-            Queue::JobStatus::Pending,
-            Time.unix chapter["timestamp"].as_i64
-          )
-        }
-        inserted_count = Queue.default.push jobs
-        send_json env, {
-          "success": inserted_count,
-          "fail":    jobs.size - inserted_count,
-        }.to_json
-      rescue e
-        Logger.error e
-        send_json env, {"error" => e.message}.to_json
-      end
-    end
-
    ws "/api/admin/mangadex/queue" do |socket, env|
      interval_raw = env.params.query["interval"]?
      interval = (interval_raw.to_i? if interval_raw) || 5
      loop do
        socket.send({
-          "jobs"   => Queue.default.get_all,
+          "jobs"   => Queue.default.get_all.reverse,
          "paused" => Queue.default.paused?,
        }.to_json)
        sleep interval.seconds
@@ -390,13 +377,13 @@ struct APIRouter
    }
    get "/api/admin/mangadex/queue" do |env|
      begin
-        jobs = Queue.default.get_all
        send_json env, {
-          "jobs"    => jobs,
+          "jobs"    => Queue.default.get_all.reverse,
          "paused"  => Queue.default.paused?,
          "success" => true,
        }.to_json
      rescue e
+        Logger.error e
        send_json env, {
          "success" => false,
          "error"   => e.message,
@@ -444,6 +431,7 @@ struct APIRouter

        send_json env, {"success" => true}.to_json
      rescue e
+        Logger.error e
        send_json env, {
          "success" => false,
          "error"   => e.message,
@@ -516,6 +504,7 @@ struct APIRouter

        raise "No part with name `file` found"
      rescue e
+        Logger.error e
        send_json env, {
          "success" => false,
          "error"   => e.message,
@@ -551,6 +540,7 @@ struct APIRouter
          "title"    => title,
        }.to_json
      rescue e
+        Logger.error e
        send_json env, {
          "success" => false,
          "error"   => e.message,
@@ -594,6 +584,7 @@ struct APIRouter
          "fail":    jobs.size - inserted_count,
        }.to_json
      rescue e
+        Logger.error e
        send_json env, {
          "success" => false,
          "error"   => e.message,
@@ -612,25 +603,35 @@ struct APIRouter
        "width"  => Int32,
        "height" => Int32,
      }],
-      "margin" => Int32?,
    }
+    Koa.response 304, "Not modified (only available when `If-None-Match` is set)"
    get "/api/dimensions/:tid/:eid" do |env|
      begin
        tid = env.params.url["tid"]
        eid = env.params.url["eid"]
+        prev_e_tag = env.request.headers["If-None-Match"]?

        title = Library.default.get_title tid
        raise "Title ID `#{tid}` not found" if title.nil?
        entry = title.get_entry eid
        raise "Entry ID `#{eid}` of `#{title.title}` not found" if entry.nil?

-        sizes = entry.page_dimensions
-        send_json env, {
-          "success"    => true,
-          "dimensions" => sizes,
-          "margin"     => Config.current.page_margin,
-        }.to_json
+        file_hash = Digest::SHA1.hexdigest (entry.zip_path + entry.mtime.to_s)
+        e_tag = "W/#{file_hash}"
+        if e_tag == prev_e_tag
+          env.response.status_code = 304
+          ""
+        else
+          sizes = entry.page_dimensions
+          env.response.headers["ETag"] = e_tag
+          env.response.headers["Cache-Control"] = "public, max-age=86400"
+          send_json env, {
+            "success"    => true,
+            "dimensions" => sizes,
+          }.to_json
+        end
      rescue e
+        Logger.error e
        send_json env, {
          "success" => false,
          "error"   => e.message,
@@ -770,6 +771,7 @@ struct APIRouter
          "titles"  => Storage.default.missing_titles,
        }.to_json
      rescue e
+        Logger.error e
        send_json env, {
          "success" => false,
          "error"   => e.message,
@@ -796,6 +798,7 @@ struct APIRouter
          "entries" => Storage.default.missing_entries,
        }.to_json
      rescue e
+        Logger.error e
        send_json env, {
          "success" => false,
          "error"   => e.message,
@@ -814,6 +817,7 @@ struct APIRouter
          "error"   => nil,
        }.to_json
      rescue e
+        Logger.error e
        send_json env, {
          "success" => false,
          "error"   => e.message,
@@ -832,6 +836,7 @@ struct APIRouter
          "error"   => nil,
        }.to_json
      rescue e
+        Logger.error e
        send_json env, {
          "success" => false,
          "error"   => e.message,
@@ -853,6 +858,7 @@ struct APIRouter
          "error"   => nil,
        }.to_json
      rescue e
+        Logger.error e
        send_json env, {
          "success" => false,
          "error"   => e.message,
@@ -873,114 +879,6 @@ struct APIRouter
          "success" => true,
          "error"   => nil,
        }.to_json
-      rescue e
-        send_json env, {
-          "success" => false,
-          "error"   => e.message,
-        }.to_json
-      end
-    end
-
-    Koa.describe "Logs the current user into their MangaDex account", <<-MD
-    If successful, returns the expiration date (as a unix timestamp) of the newly created token.
-    MD
-    Koa.body schema: {
-      "username" => String,
-      "password" => String,
-    }
-    Koa.response 200, schema: {
-      "success" => Bool,
-      "error"   => String?,
-      "expires" => Int64?,
-    }
-    Koa.tags ["admin", "mangadex", "users"]
-    post "/api/admin/mangadex/login" do |env|
-      begin
-        username = env.params.json["username"].as String
-        password = env.params.json["password"].as String
-        mango_username = get_username env
-
-        client = MangaDex::Client.from_config
-        client.auth username, password
-
-        Storage.default.save_md_token mango_username, client.token.not_nil!,
-          client.token_expires
-
-        send_json env, {
-          "success" => true,
-          "error"   => nil,
-          "expires" => client.token_expires.to_unix,
-        }.to_json
-      rescue e
-        Logger.error e
-        send_json env, {
-          "success" => false,
-          "error"   => e.message,
-        }.to_json
-      end
-    end
-
-    Koa.describe "Returns the expiration date (as a unix timestamp) of the mangadex token if it exists"
-    Koa.response 200, schema: {
-      "success" => Bool,
-      "error"   => String?,
-      "expires" => Int64?,
-    }
-    Koa.tags ["admin", "mangadex", "users"]
-    get "/api/admin/mangadex/expires" do |env|
-      begin
-        username = get_username env
-        _, expires = Storage.default.get_md_token username
-
-        send_json env, {
-          "success" => true,
-          "error"   => nil,
-          "expires" => expires.try &.to_unix,
-        }.to_json
-      rescue e
-        Logger.error e
-        send_json env, {
-          "success" => false,
-          "error"   => e.message,
-        }.to_json
-      end
-    end
-
-    Koa.describe "Searches MangaDex for manga matching `query`", <<-MD
-    Returns an empty list if the current user hasn't logged in to MangaDex.
-    MD
-    Koa.query "query"
-    Koa.response 200, schema: {
-      "success" => Bool,
-      "error"   => String?,
-      "manga?"  => [{
-        "id"          => Int64,
-        "title"       => String,
-        "description" => String,
-        "mainCover"   => String,
-      }],
-    }
-    Koa.tags ["admin", "mangadex"]
-    get "/api/admin/mangadex/search" do |env|
-      begin
-        username = get_username env
-        token, expires = Storage.default.get_md_token username
-
-        unless expires && token
-          raise "No token found for user #{username}"
-        end
-
-        client = MangaDex::Client.from_config
-        client.token = token
-        client.token_expires = expires
-
-        query = env.params.query["query"]
-
-        send_json env, {
-          "success" => true,
-          "error"   => nil,
-          "manga"   => client.partial_search query,
-        }.to_json
      rescue e
        Logger.error e
        send_json env, {
--- a/src/routes/main.cr
+++ b/src/routes/main.cr
@@ -30,7 +30,8 @@ struct MainRouter
        else
          redirect env, "/"
        end
-      rescue
+      rescue e
+        Logger.error e
        redirect env, "/login"
      end
    end
@@ -40,7 +41,7 @@ struct MainRouter
        username = get_username env

        sort_opt = SortOptions.from_info_json Library.default.dir, username
-        get_sort_opt
+        get_and_save_sort_opt Library.default.dir

        titles = Library.default.sorted_titles username, sort_opt
        percentage = titles.map &.load_percentage username
@@ -58,12 +59,12 @@ struct MainRouter
        username = get_username env

        sort_opt = SortOptions.from_info_json title.dir, username
-        get_sort_opt
+        get_and_save_sort_opt title.dir

        entries = title.sorted_entries username, sort_opt
-
        percentage = title.load_percentage_for_all_entries username, sort_opt
        title_percentage = title.titles.map &.load_percentage username
+
        layout "title"
      rescue e
        Logger.error e
@@ -71,11 +72,6 @@ struct MainRouter
      end
    end

-    get "/download" do |env|
-      mangadex_base_url = Config.current.mangadex["base_url"]
-      layout "download"
-    end
-
    get "/download/plugins" do |env|
      begin
        id = env.params.query["plugin"]?
@@ -103,7 +99,7 @@ struct MainRouter
        recently_added = Library.default.get_recently_added_entries username
        start_reading = Library.default.get_start_reading_titles username
        titles = Library.default.titles
-        new_user = !titles.any? { |t| t.load_percentage(username) > 0 }
+        new_user = !titles.any? &.load_percentage(username).> 0
        empty_library = titles.size == 0
        layout "home"
      rescue e
--- a/src/storage.cr
+++ b/src/storage.cr
@@ -428,12 +428,21 @@ class Storage
    end
  end

-  def mark_unavailable
+  # Mark titles and entries that no longer exist on the file system as
+  #   unavailable. By supplying `id_candidates` and `titles_candidates`, it
+  #   only checks the existence of the candidate titles/entries to speed up
+  #   the process.
+  def mark_unavailable(ids_candidates : Array(String)?,
+                       titles_candidates : Array(String)?)
    MainFiber.run do
      get_db do |db|
        # Detect dangling entry IDs
        trash_ids = [] of String
-        db.query "select path, id from ids where unavailable = 0" do |rs|
+        query = "select path, id from ids where unavailable = 0"
+        unless ids_candidates.nil?
+          query += " and id in (#{ids_candidates.join "," { |i| "'#{i}'" }})"
+        end
+        db.query query do |rs|
          rs.each do
            path = rs.read String
            fullpath = Path.new(path).expand(Config.current.library_path).to_s
@@ -445,11 +454,15 @@ class Storage
          Logger.debug "Marking #{trash_ids.size} entries as unavailable"
        end
        db.exec "update ids set unavailable = 1 where id in " \
-                "(#{trash_ids.map { |i| "'#{i}'" }.join ","})"
+                "(#{trash_ids.join "," { |i| "'#{i}'" }})"

        # Detect dangling title IDs
        trash_titles = [] of String
-        db.query "select path, id from titles where unavailable  = 0" do |rs|
+        query = "select path, id from titles where unavailable = 0"
+        unless titles_candidates.nil?
+          query += " and id in (#{titles_candidates.join "," { |i| "'#{i}'" }})"
+        end
+        db.query query do |rs|
          rs.each do
            path = rs.read String
            fullpath = Path.new(path).expand(Config.current.library_path).to_s
@@ -461,7 +474,7 @@ class Storage
          Logger.debug "Marking #{trash_titles.size} titles as unavailable"
        end
        db.exec "update titles set unavailable = 1 where id in " \
-                "(#{trash_titles.map { |i| "'#{i}'" }.join ","})"
+                "(#{trash_titles.join "," { |i| "'#{i}'" }})"
      end
    end
  end
--- a/src/subscription.cr
+++ b/src/subscription.cr
@@ -0,0 +1,83 @@
+require "db"
+require "json"
+
+struct Subscription
+  include DB::Serializable
+  include JSON::Serializable
+
+  getter id : Int64 = 0
+  getter username : String
+  getter manga_id : Int64
+  property language : String?
+  property group_id : Int64?
+  property min_volume : Int64?
+  property max_volume : Int64?
+  property min_chapter : Int64?
+  property max_chapter : Int64?
+  @[DB::Field(key: "last_checked")]
+  @[JSON::Field(key: "last_checked")]
+  @raw_last_checked : Int64
+  @[DB::Field(key: "created_at")]
+  @[JSON::Field(key: "created_at")]
+  @raw_created_at : Int64
+
+  def last_checked : Time
+    Time.unix @raw_last_checked
+  end
+
+  def created_at : Time
+    Time.unix @raw_created_at
+  end
+
+  def initialize(@manga_id, @username)
+    @raw_created_at = Time.utc.to_unix
+    @raw_last_checked = Time.utc.to_unix
+  end
+
+  private def in_range?(value : String, lowerbound : Int64?,
+                        upperbound : Int64?) : Bool
+    lb = lowerbound.try &.to_f64
+    ub = upperbound.try &.to_f64
+
+    return true if lb.nil? && ub.nil?
+
+    v = value.to_f64?
+    return false unless v
+
+    if lb.nil?
+      v <= ub.not_nil!
+    elsif ub.nil?
+      v >= lb.not_nil!
+    else
+      v >= lb.not_nil! && v <= ub.not_nil!
+    end
+  end
+
+  def match?(chapter : MangaDex::Chapter) : Bool
+    if chapter.manga_id != manga_id ||
+       (language && chapter.language != language) ||
+       (group_id && !chapter.groups.map(&.id).includes? group_id)
+      return false
+    end
+
+    in_range?(chapter.volume, min_volume, max_volume) &&
+      in_range?(chapter.chapter, min_chapter, max_chapter)
+  end
+
+  def check_for_updates : Int32
+    Logger.debug "Checking updates for subscription with ID #{id}"
+    jobs = [] of Queue::Job
+    get_client(username).user.updates_after last_checked do |chapter|
+      next unless match? chapter
+      jobs << chapter.to_job
+    end
+    Storage.default.update_subscription_last_checked id
+    count = Queue.default.push jobs
+    Logger.debug "#{count}/#{jobs.size} of updates added to queue"
+    count
+  rescue e
+    Logger.error "Error occurred when checking updates for " \
+                 "subscription with ID #{id}. #{e}"
+    0
+  end
+end
--- a/src/util/chapter_sort.cr
+++ b/src/util/chapter_sort.cr
@@ -73,7 +73,7 @@ class ChapterSorter
      .select do |key|
        keys[key].count >= str_ary.size / 2
      end
-      .sort do |a_key, b_key|
+      .sort! do |a_key, b_key|
        a = keys[a_key]
        b = keys[b_key]
        # Sort keys by the number of times they appear
--- a/src/util/numeric_sort.cr
+++ b/src/util/numeric_sort.cr
@@ -11,7 +11,7 @@ end
 def split_by_alphanumeric(str)
  arr = [] of String
  str.scan(/([^\d\n\r]*)(\d*)([^\d\n\r]*)/) do |match|
-    arr += match.captures.select { |s| s != "" }
+    arr += match.captures.select &.!= ""
  end
  arr
 end
--- a/src/util/signature.cr
+++ b/src/util/signature.cr
@@ -48,4 +48,32 @@ class Dir
    end
    Digest::CRC32.checksum(signatures.sort.join).to_u64
  end
+
+  # Returns the contents signature of the directory at dirname for checking
+  #   to rescan.
+  # Rescan conditions:
+  #   - When a file added, moved, removed, renamed (including which in nested
+  #       directories)
+  def self.contents_signature(dirname, cache = {} of String => String) : String
+    return cache[dirname] if cache[dirname]?
+    Fiber.yield
+    signatures = [] of String
+    self.open dirname do |dir|
+      dir.entries.sort.each do |fn|
+        next if fn.starts_with? "."
+        path = File.join dirname, fn
+        if File.directory? path
+          signatures << Dir.contents_signature path, cache
+        else
+          # Only add its signature value to `signatures` when it is a
+          #   supported file
+          signatures << fn if is_supported_file fn
+        end
+        Fiber.yield
+      end
+    end
+    hash = Digest::SHA1.hexdigest(signatures.join)
+    cache[dirname] = hash
+    hash
+  end
 end
--- a/src/util/util.cr
+++ b/src/util/util.cr
@@ -35,6 +35,11 @@ def register_mime_types
    # FontAwesome fonts
    ".woff"  => "font/woff",
    ".woff2" => "font/woff2",
+
+    # Supported image formats. JPG, PNG, GIF, WebP, and SVG are already
+    #   defiend by Crystal in `MIME.DEFAULT_TYPES`
+    ".apng" => "image/apng",
+    ".avif" => "image/avif",
  }.each do |k, v|
    MIME.register k, v
  end
@@ -114,9 +119,28 @@ class String
  def components_similarity(other : String) : Float64
    s, l = [self, other]
      .map { |str| Path.new(str).parts }
-      .sort_by &.size
+      .sort_by! &.size

    match = s.reverse.zip(l.reverse).count { |a, b| a == b }
    match / s.size
  end
 end
+
+# Does the followings:
+#   - turns space-like characters into the normal whitespaces ( )
+#   - strips and collapses spaces
+#   - removes ASCII control characters
+#   - replaces slashes (/) with underscores (_)
+#   - removes leading dots (.)
+#   - removes the following special characters: \:*?"<>|
+#
+# If the sanitized string is empty, returns a random string instead.
+def sanitize_filename(str : String) : String
+  sanitized = str
+    .gsub(/\s+/, " ")
+    .strip
+    .gsub(/\//, "_")
+    .gsub(/^[\.\s]+/, "")
+    .gsub(/[\177\000-\031\\:\*\?\"<>\|]/, "")
+  sanitized.size > 0 ? sanitized : random_str
+end
--- a/src/util/web.cr
+++ b/src/util/web.cr
@@ -72,7 +72,7 @@ def redirect(env, path)
 end

 def hash_to_query(hash)
-  hash.map { |k, v| "#{k}=#{v}" }.join("&")
+  hash.join "&" { |k, v| "#{k}=#{v}" }
 end

 def request_path_startswith(env, ary)
@@ -107,6 +107,26 @@ macro get_sort_opt
  end
 end

+macro get_and_save_sort_opt(dir)
+  sort_method = env.params.query["sort"]?
+
+  if sort_method
+    is_ascending = true
+
+    ascend = env.params.query["ascend"]?
+    if ascend && ascend.to_i? == 0
+      is_ascending = false
+    end
+
+    sort_opt = SortOptions.new sort_method, is_ascending
+
+    TitleInfo.new {{dir}} do |info|
+      info.sort_by[username] = sort_opt.to_tuple
+      info.save
+    end
+  end
+end
+
 module HTTP
  class Client
    private def self.exec(uri : URI, tls : TLSContext = nil)
--- a/src/views/admin.html.ecr
+++ b/src/views/admin.html.ecr
@@ -33,7 +33,6 @@
      <option>System</option>
    </select>
  </li>
-  <li><a class="uk-link-reset" href="<%= base_url %>admin/mangadex">Connect to MangaDex</a></li>
 </ul>

 <hr class="uk-divider-icon">
--- a/src/views/download-manager.html.ecr
+++ b/src/views/download-manager.html.ecr
@@ -49,11 +49,10 @@
          </td>

          <td x-text="`${job.plugin_id || ''}`"></td>
-
          <td>
-            <a @click="jobAction('delete', $event)" uk-icon="trash"></a>
+            <a @click="jobAction('delete', $event)" uk-icon="trash" uk-tooltip="Delete"></a>
            <template x-if="job.status_message.length > 0">
-              <a @click="jobAction('retry', $event)" uk-icon="refresh"></a>
+              <a @click="jobAction('retry', $event)" uk-icon="refresh" uk-tooltip="Retry"></a>
            </template>
          </td>
        </tr>
@@ -61,6 +60,7 @@
    </tbody>
  </table>
 </div>
+</div>

 <% content_for "script" do %>
  <%= render_component "moment" %>
--- a/src/views/layout.html.ecr
+++ b/src/views/layout.html.ecr
@@ -1,89 +1,87 @@
 <!DOCTYPE html>
 <html>

-    <%= render_component "head" %>
+  <%= render_component "head" %>

-    <body>
-        <div class="uk-offcanvas-content">
-            <div class="uk-navbar-container uk-navbar-transparent" uk-navbar="uk-navbar">
-                <div id="mobile-nav" uk-offcanvas="overlay: true">
-                    <div class="uk-offcanvas-bar uk-flex uk-flex-column">
-                        <ul class="uk-nav-parent-icon uk-nav-primary uk-nav-center uk-margin-auto-vertical" uk-nav>
-                            <li><a href="<%= base_url %>">Home</a></li>
-                            <li><a href="<%= base_url %>library">Library</a></li>
-                            <li><a href="<%= base_url %>tags">Tags</a></li>
-                            <% if is_admin %>
-                                <li><a href="<%= base_url %>admin">Admin</a></li>
-                                <li class="uk-parent">
-                                    <a href="#">Download</a>
-                                    <ul class="uk-nav-sub">
-                                        <li><a href="<%= base_url %>download">MangaDex</a></li>
-                                        <li><a href="<%= base_url %>download/plugins">Plugins</a></li>
-                                        <li><a href="<%= base_url %>admin/downloads">Download Manager</a></li>
-                                    </ul>
-                                </li>
-                            <% end %>
-                            <hr uk-divider>
-                            <li><a onclick="toggleTheme()"><i class="fas fa-adjust"></i></a></li>
-                            <li><a href="<%= base_url %>logout">Logout</a></li>
-                        </ul>
-                    </div>
-                </div>
-            </div>
+  <body>
+    <div class="uk-offcanvas-content">
+      <div class="uk-navbar-container uk-navbar-transparent" uk-navbar="uk-navbar">
+        <div id="mobile-nav" uk-offcanvas="overlay: true">
+          <div class="uk-offcanvas-bar uk-flex uk-flex-column">
+            <ul class="uk-nav-parent-icon uk-nav-primary uk-nav-center uk-margin-auto-vertical" uk-nav>
+              <li><a href="<%= base_url %>">Home</a></li>
+              <li><a href="<%= base_url %>library">Library</a></li>
+              <li><a href="<%= base_url %>tags">Tags</a></li>
+              <% if is_admin %>
+                <li><a href="<%= base_url %>admin">Admin</a></li>
+                <li class="uk-parent">
+                  <a href="#">Download</a>
+                  <ul class="uk-nav-sub">
+                    <li><a href="<%= base_url %>download/plugins">Plugins</a></li>
+                    <li><a href="<%= base_url %>admin/downloads">Download Manager</a></li>
+                  </ul>
+                </li>
+              <% end %>
+              <hr uk-divider>
+              <li><a onclick="toggleTheme()"><i class="fas fa-adjust"></i></a></li>
+              <li><a href="<%= base_url %>logout">Logout</a></li>
+            </ul>
+          </div>
        </div>
-        <div class="uk-position-top">
-            <div class="uk-navbar-container uk-navbar-transparent" uk-navbar="uk-navbar">
-                <div class="uk-navbar-left uk-hidden@s">
-                    <div class="uk-navbar-toggle" uk-navbar-toggle-icon="uk-navbar-toggle-icon" uk-toggle="target: #mobile-nav"></div>
-                </div>
-                <div class="uk-navbar-left uk-visible@s">
-                    <a class="uk-navbar-item uk-logo" href="<%= base_url %>"><img src="<%= base_url %>img/icon.png" style="width:90px;height:90px;"></a>
-                    <ul class="uk-navbar-nav">
-                        <li><a href="<%= base_url %>">Home</a></li>
-                        <li><a href="<%= base_url %>library">Library</a></li>
-                        <li><a href="<%= base_url %>tags">Tags</a></li>
-                        <% if is_admin %>
-                            <li><a href="<%= base_url %>admin">Admin</a></li>
-                            <li>
-                                <a href="#">Download</a>
-                                <div class="uk-navbar-dropdown">
-                                    <ul class="uk-nav uk-navbar-dropdown-nav">
-                                        <li class="uk-nav-header">Source</li>
-                                        <li><a href="<%= base_url %>download">MangaDex</a></li>
-                                        <li><a href="<%= base_url %>download/plugins">Plugins</a></li>
-                                        <li class="uk-nav-divider"></li>
-                                        <li><a href="<%= base_url %>admin/downloads">Download Manager</a></li>
-                                    </ul>
-                                </div>
-                            </li>
-                        <% end %>
-                    </ul>
-                </div>
-                <div class="uk-navbar-right uk-visible@s">
-                    <ul class="uk-navbar-nav">
-                        <li><a onclick="toggleTheme()"><i class="fas fa-adjust"></i></a></li>
-                        <li><a href="<%= base_url %>logout">Logout</a></li>
-                    </ul>
-                </div>
-            </div>
+      </div>
+    </div>
+    <div class="uk-position-top">
+      <div class="uk-navbar-container uk-navbar-transparent" uk-navbar="uk-navbar">
+        <div class="uk-navbar-left uk-hidden@s">
+          <div class="uk-navbar-toggle" uk-navbar-toggle-icon="uk-navbar-toggle-icon" uk-toggle="target: #mobile-nav"></div>
        </div>
-        <div class="uk-section uk-section-small">
-        </div>
-        <div class="uk-section uk-section-small" style="position:relative;">
-            <div class="uk-container uk-container-small">
-                <div id="alert"></div>
-                <%= content %>
-                <div class="uk-visible@m" id="totop-wrapper" x-data="{}" x-show="$('body').height() > 1.5 * $(window).height()">
-                    <a href="#" uk-totop uk-scroll></a>
+        <div class="uk-navbar-left uk-visible@s">
+          <a class="uk-navbar-item uk-logo" href="<%= base_url %>"><img src="<%= base_url %>img/icon.png" style="width:90px;height:90px;"></a>
+          <ul class="uk-navbar-nav">
+            <li><a href="<%= base_url %>">Home</a></li>
+            <li><a href="<%= base_url %>library">Library</a></li>
+            <li><a href="<%= base_url %>tags">Tags</a></li>
+            <% if is_admin %>
+              <li><a href="<%= base_url %>admin">Admin</a></li>
+              <li>
+                <a href="#">Download</a>
+                <div class="uk-navbar-dropdown">
+                  <ul class="uk-nav uk-navbar-dropdown-nav">
+                    <li class="uk-nav-header">Source</li>
+                    <li><a href="<%= base_url %>download/plugins">Plugins</a></li>
+                    <li class="uk-nav-divider"></li>
+                    <li><a href="<%= base_url %>admin/downloads">Download Manager</a></li>
+                  </ul>
                </div>
-            </div>
+              </li>
+            <% end %>
+          </ul>
        </div>
-        <script>
-            setTheme();
-            const base_url = "<%= base_url %>";
-        </script>
-        <%= render_component "uikit" %>
-        <%= yield_content "script" %>
-    </body>
+        <div class="uk-navbar-right uk-visible@s">
+          <ul class="uk-navbar-nav">
+            <li><a onclick="toggleTheme()"><i class="fas fa-adjust"></i></a></li>
+            <li><a href="<%= base_url %>logout">Logout</a></li>
+          </ul>
+        </div>
+      </div>
+    </div>
+    <div class="uk-section uk-section-small">
+    </div>
+    <div class="uk-section uk-section-small" style="position:relative;">
+      <div class="uk-container uk-container-small">
+        <div id="alert"></div>
+        <%= content %>
+        <div class="uk-visible@m" id="totop-wrapper" x-data="{}" x-show="$('body').height() > 1.5 * $(window).height()">
+          <a href="#" uk-totop uk-scroll></a>
+        </div>
+      </div>
+    </div>
+    <script>
+      setTheme();
+      const base_url = "<%= base_url %>";
+    </script>
+    <%= render_component "uikit" %>
+    <%= yield_content "script" %>
+  </body>

 </html>
--- a/src/views/plugin-download.html.ecr
+++ b/src/views/plugin-download.html.ecr
@@ -56,8 +56,10 @@
      <div id="download-spinner" uk-spinner class="uk-margin-left" hidden></div>
    </div>
    <p class="uk-text-meta">Click on a table row to select the chapter. Drag your mouse over multiple rows to select them all. Hold Ctrl to make multiple non-adjacent selections.</p>
-    <table class="uk-table uk-table-striped uk-overflow-auto tablesorter">
-    </table>
+    <div class="uk-overflow-auto">
+      <table class="uk-table uk-table-striped tablesorter">
+      </table>
+    </div>
  </div>
 <% end %>

--- a/src/views/reader.html.ecr
+++ b/src/views/reader.html.ecr
@@ -21,15 +21,15 @@
      <div
        :class="{'uk-container': true, 'uk-container-small': mode === 'continuous', 'uk-container-expand': mode !== 'continuous'}">
        <div x-show="!loading && mode === 'continuous'" x-cloak>
-          <template x-for="item in items">
+          <template x-if="!loading && mode === 'continuous'" x-for="item in items">
            <img
              uk-img
              :class="{'uk-align-center': true, 'spine': item.width < 50}"
-              :style="item.style"
              :data-src="item.url"
              :width="item.width"
              :height="item.height"
              :id="item.id"
+              :style="`margin-top:${margin}px; margin-bottom:${margin}px`"
              @click="showControl($event)"
              />
          </template>
@@ -50,6 +50,9 @@
                                                                                                                                                                 width:${mode === 'width' ? '100vw' : 'auto'}; 
                                                                                                                                                                 height:${mode === 'height' ? '100vh' : 'auto'}; 
                                                                                                                                                                 margin-bottom:0;
+                                                                                                                                                                 max-width:100%;
+                                                                                                                                                                 max-height:100%;
+                                                                                                                                                                 object-fit: contain;
                                                                                                                                                                 `" />

          <div style="position:absolute;z-index:1; top:0;left:0; width:30%;height:100%;" @click="flipPage(false)"></div>
@@ -80,6 +83,7 @@
              </select>
            </div>
          </div>
+
          <div class="uk-margin">
            <label class="uk-form-label" for="mode-select">Mode</label>
            <div class="uk-form-controls">
@@ -90,6 +94,26 @@
            </div>
          </div>

+          <div class="uk-margin" x-show="mode === 'continuous'">
+            <label class="uk-form-label" for="margin-range" x-text="`Page Margin: ${margin}px`"></label>
+            <div class="uk-form-controls">
+              <input id="margin-range" class="uk-range" type="range" min="0" max="50" step="5" x-model="margin" @change="marginChanged()">
+            </div>
+          </div>
+
+          <div class="uk-margin uk-form-horizontal" x-show="mode !== 'continuous'">
+            <label class="uk-form-label" for="enable-flip-animation">Enable Flip Animation</label>
+            <div class="uk-form-controls">
+              <input id="enable-flip-animation" class="uk-checkbox" type="checkbox" x-model="enableFlipAnimation" @change="enableFlipAnimationChanged()">
+            </div>
+          </div>
+          <div class="uk-margin uk-form-horizontal" x-show="mode !== 'continuous'">
+            <label class="uk-form-label" for="preload-lookahead" x-text="`Preload Image: ${preloadLookahead} page(s)`"></label>
+            <div class="uk-form-controls">
+              <input id="preload-lookahead" class="uk-range" type="range" min="0" max="5" step="1" x-model.number="preloadLookahead" @change="preloadLookaheadChanged()">
+            </div>
+          </div>
+
          <hr class="uk-divider-icon">

          <div class="uk-margin">
@@ -110,12 +134,12 @@
        </div>
        <div class="uk-modal-footer uk-text-right">
          <% if previous_entry_url %>
-            <a class="uk-button uk-button-default uk-margin-small-right" href="<%= previous_entry_url %>">Previous Entry</a>
+            <a class="uk-button uk-button-default uk-margin-small-bottom uk-margin-small-right" href="<%= previous_entry_url %>">Previous Entry</a>
          <% end %>
          <% if next_entry_url %>
-            <a class="uk-button uk-button-default uk-margin-small-right" href="<%= next_entry_url %>">Next Entry</a>
+            <a class="uk-button uk-button-default uk-margin-small-bottom uk-margin-small-right" href="<%= next_entry_url %>">Next Entry</a>
          <% end %>
-          <a class="uk-button uk-button-danger" href="<%= exit_url %>">Exit Reader</a>
+          <a class="uk-button uk-button-danger uk-margin-small-bottom uk-margin-small-right" href="<%= exit_url %>">Exit Reader</a>
        </div>
      </div>
    </div>
--- a/src/views/subscription.html.ecr
+++ b/src/views/subscription.html.ecr
@@ -0,0 +1,54 @@
+<h2 class="uk-title">MangaDex Subscription Manager</h2>
+
+<div x-data="component()" x-init="init()">
+  <p x-show="available === false">The subscription manager uses a MangaDex API that requires authentication. Please <a href="<%= base_url %>admin/mangadex">connect to MangaDex</a> before using this feature.</p>
+
+  <p x-show="available && subscriptions.length === 0">No subscription found. Go to the <a href="<%= base_url %>download">MangaDex download page</a> and start subscribing.</p>
+
+  <template x-if="subscriptions.length > 0">
+    <div class="uk-overflow-auto">
+      <table class="uk-table uk-table-striped">
+        <thead>
+          <tr>
+            <th>Manga ID</th>
+            <th>Language</th>
+            <th>Group ID</th>
+            <th>Volume Range</th>
+            <th>Chapter Range</th>
+            <th>Creator</th>
+            <th>Last Checked</th>
+            <th>Created At</th>
+            <th>Actions</th>
+          </tr>
+        </thead>
+        <tbody>
+          <template x-for="sub in subscriptions" :key="sub">
+            <tr>
+              <td><a :href="`<%= mangadex_base_url %>/manga/${sub.manga_id}`" x-text="sub.manga_id"></a></td>
+              <td x-text="sub.language || 'All'"></td>
+              <td>
+                <a x-show="sub.group_id" :href="`<%= mangadex_base_url %>/group/${sub.group_id}`" x-text="sub.group_id"></a>
+                <span x-show="!sub.group_id">All</span>
+              </td>
+              <td x-text="formatRange(sub.min_volume, sub.max_volume)"></td>
+              <td x-text="formatRange(sub.min_chapter, sub.max_chapter)"></td>
+              <td x-text="sub.username"></td>
+              <td x-text="`${moment.unix(sub.last_checked).fromNow()}`"></td>
+              <td x-text="`${moment.unix(sub.created_at).fromNow()}`"></td>
+              <td :data-id="sub.id">
+                <a @click="check($event)" x-show="sub.username === '<%= username %>'" uk-icon="refresh" uk-tooltip="Check for updates"></a>
+                <a @click="rm($event)" x-show="sub.username === '<%= username %>'" uk-icon="trash" uk-tooltip="Delete"></a>
+              </td>
+            </tr>
+          </template>
+        </tbody>
+      </table>
+    </div>
+  </template>
+</div>
+
+<% content_for "script" do %>
+  <%= render_component "moment" %>
+  <script src="<%= base_url %>js/alert.js"></script>
+  <script src="<%= base_url %>js/subscription.js"></script>
+<% end %>
Author	SHA1	Message	Date
Alex Ling	8a732804ae	Merge pull request #232 from hkalexling/rc/0.24.0 v0.24.0	2021-09-25 13:39:48 +08:00
Alex Ling	9df372f784	Merge branch 'dev' into rc/0.24.0	2021-09-23 07:52:58 +00:00
Alex Ling	cf7431b8b6	Merge pull request #236 from hkalexling/fix/shallow-api-fix Use `depth` instead of `shallow` in API	2021-09-23 15:52:14 +08:00
Alex Ling	974b6cfe9b	Use `depth` instead of `shallow` in API	2021-09-22 09:17:14 +00:00
Alex Ling	4fbe5b471c	Update README	2021-09-20 01:36:31 +00:00
Alex Ling	33e7e31fbc	Bump version to 0.24.0	2021-09-20 01:11:26 +00:00
Alex Ling	72fae7f5ed	Fix typo cbz -> gz	2021-09-18 12:41:25 +00:00
Alex Ling	f50a7e3b3e	Merge branch 'dev' into rc/0.24.0	2021-09-18 12:40:56 +00:00
Alex Ling	66c4037f2b	Merge pull request #233 from Leeingnyo/feature/avoid-unnecessary-sort Avoid a unnecessary sorting	2021-09-18 20:40:25 +08:00
Leeingnyo	2c022a07e7	Avoid unnecessary sorts when getting deep percentage This make page loading fast	2021-09-18 18:49:29 +09:00
Alex Ling	91362dfc7d	Merge branch 'master' into rc/0.24.0	2021-09-18 09:20:59 +00:00
Alex Ling	97168b65d8	Make library cache path configurable	2021-09-18 08:40:08 +00:00
Alex Ling	6e04e249e7	Merge pull request #229 from Leeingnyo/feature/preserve-scanned-titles Reuse scanned titles on boot and scanning	2021-09-18 16:14:31 +08:00
Alex Ling	16397050dd	Update comments	2021-09-18 02:24:50 +00:00
Alex Ling	3f73591dd4	Update comments	2021-09-18 02:14:22 +00:00
Alex Ling	ec25109fa5	Merge branch 'feature/preserve-scanned-titles' of https://github.com/Leeingnyo/Mango into feature/preserve-scanned-titles	2021-09-18 02:04:02 +00:00
Alex Ling	96f1ef3dde	Improve comments on examine	2021-09-18 02:00:10 +00:00
Leeingnyo	b56e16e1e1	Remove counter, yield everytime	2021-09-18 10:59:43 +09:00
Leeingnyo	9769e760a0	Pass a counter to recursive calls, Ignore negative threshold	2021-09-16 07:49:12 +09:00
Leeingnyo	70ab198a33	Add config 'forcely_yield_count' the default value 1000 would make a fiber yield on each 4ms on SSD Apply yield counter in Dir.contents_signauture Use contents_signature cache in Title.new	2021-09-16 00:16:26 +09:00
Alex Ling	44a6f822cd	Simplify Title.new	2021-09-15 09:00:30 +00:00
Alex Ling	2c241a96bb	Merge branch 'dev' into feature/preserve-scanned-titles	2021-09-15 08:58:24 +00:00
Alex Ling	219d4446d1	Merge pull request #231 from hkalexling/feature/api-improvements API Improvements	2021-09-15 16:54:41 +08:00
Alex Ling	d330db131e	Simplify `mark_unavailable`	2021-09-15 08:46:30 +00:00
Leeingnyo	de193906a2	Refactor mark_unavailable	2021-09-15 16:54:55 +09:00
Leeingnyo	d13cfc045f	Add a comment	2021-09-15 01:27:05 +09:00
Leeingnyo	a3b2cdd372	Lint	2021-09-15 01:17:44 +09:00
Leeingnyo	f4d7128b59	Mark unavailable only in candidates	2021-09-14 23:30:03 +09:00
Leeingnyo	663c0c0b38	Remove nested title including self	2021-09-14 23:28:28 +09:00
Leeingnyo	57b2f7c625	Get nested ids when title removed	2021-09-14 23:08:07 +09:00
Leeingnyo	9489d6abfd	Use reference instead of primitive	2021-09-14 23:07:47 +09:00
Leeingnyo	670cf54957	Apply yield forcely	2021-09-14 22:51:37 +09:00
Leeingnyo	2e09efbd62	Collect deleted ids	2021-09-14 22:51:25 +09:00
Leeingnyo	523195d649	Define ExamineContext, apply it when scanning	2021-09-14 22:37:30 +09:00
Leeingnyo	be47f309b0	Use cache when calculating contents_signature	2021-09-14 18:11:08 +09:00
Alex Ling	03e044a1aa	Improve logging	2021-09-14 07:16:14 +00:00
Alex Ling	4eaf271fa4	Simplify #json_build	2021-09-14 02:30:57 +00:00
Alex Ling	4b464ed361	Allow sorting in /api/book endpoint	2021-09-13 10:58:07 +00:00
Alex Ling	a9520d6f26	Add shallow option to library API endpoints	2021-09-13 10:18:07 +00:00
Leeingnyo	a151ec486d	Fix file extension of gzip file	2021-09-12 18:04:41 +09:00
Leeingnyo	8f1383a818	Use Gzip instead of Zip	2021-09-12 18:01:16 +09:00
Leeingnyo	f5933a48d9	Register mime_type scan, thumbnails when loading instance	2021-09-12 17:40:40 +09:00
Leeingnyo	7734dae138	Remove unnecessary sort	2021-09-12 14:36:17 +09:00
Leeingnyo	8c90b46114	Remove removed titles from title_hash	2021-09-12 13:39:28 +09:00
Leeingnyo	cd48b45f11	Add 'require "yaml"'	2021-09-12 12:45:24 +09:00
Leeingnyo	bdbdf9c94b	Fix to pass 'make check', fix comments	2021-09-12 11:09:48 +09:00
Leeingnyo	7e36c91ea7	Remove debug print	2021-09-12 10:47:15 +09:00
Leeingnyo	9309f51df6	Memoization on dir contents_signature	2021-09-12 02:19:49 +09:00
Leeingnyo	a8f729f5c1	Sort entries and titles when they needed	2021-09-12 02:19:49 +09:00
Leeingnyo	4e8b561f70	Apply contents signature of directories	2021-09-12 02:19:49 +09:00
Leeingnyo	e6214ddc5d	Rescan only if instance loaded	2021-09-12 02:19:49 +09:00
Leeingnyo	80e13abc4a	Spawn scan job	2021-09-12 02:14:58 +09:00
Leeingnyo	fb43abb950	Enhance the examine method	2021-09-12 02:14:58 +09:00
Leeingnyo	eb3e37b950	Examine titles and recycle them	2021-09-12 02:14:58 +09:00
Leeingnyo	0a90e3b333	Ignore caches	2021-09-12 02:14:58 +09:00
Leeingnyo	4409ed8f45	Implement save_instance, load_instance	2021-09-12 02:14:58 +09:00
Leeingnyo	291a340cdd	Add yaml serializer to Library, Title, Entry	2021-09-12 02:14:58 +09:00
Leeingnyo	0667f01471	Measure scan only	2021-09-12 02:14:58 +09:00
Alex Ling	d5847bb105	Merge pull request #224 from hkalexling/fix/sanitize-download-filename Stricter sanitization rules for download filenames	2021-09-09 08:47:41 +08:00
Alex Ling	3d295e961e	Merge branch 'dev' into fix/sanitize-download-filename	2021-09-09 00:31:24 +00:00
Alex Ling	e408398523	Merge pull request #227 from hkalexling/all-contributors/add-lincolnthedev docs: add lincolnthedev as a contributor for infra	2021-09-09 08:18:22 +08:00
Alex Ling	566cebfcdd	Remove all leading dots and spaces	2021-09-09 00:13:58 +00:00
Alex Ling	a190ae3ed6	Merge pull request #226 from lincolnthedev/master Better .dockerignore	2021-09-08 20:42:12 +08:00
allcontributors[bot]	17d7cefa12	docs: update .all-contributorsrc [skip ci]	2021-09-08 12:42:10 +00:00
allcontributors[bot]	eaef0556fa	docs: update README.md [skip ci]	2021-09-08 12:42:09 +00:00
i use arch btw	53226eab61	Forgot .github	2021-09-08 07:58:58 -04:00
Alex Ling	ccf558eaa7	Improve filename sanitization rules	2021-09-08 10:03:05 +00:00
Alex Ling	0305433e46	Merge pull request #225 from hkalexling/feature/support-all-image-types Support additional image formats (resolves #192)	2021-09-08 11:03:59 +08:00
i use arch btw	d2cad6c496	Update .dockerignore	2021-09-07 21:12:51 -04:00
Alex Ling	371796cce9	Support additional image formats: - APNG - AVIF - GIF - SVG	2021-09-07 11:04:05 +00:00
Alex Ling	d9adb49c27	Revert "Support all image types (resolves #192 )" This reverts commit `f67e4e6cb9`.	2021-09-07 10:45:59 +00:00
Alex Ling	f67e4e6cb9	Support all image types (resolves #192 )	2021-09-06 13:32:10 +00:00
Alex Ling	60a126024c	Stricter sanitization rules for download filenames Fixes #212	2021-09-06 13:01:05 +00:00
Alex Ling	da8a485087	Merge pull request #222 from Leeingnyo/feature/enhance-loading-library Improve loading pages (library, titles)	2021-09-06 16:49:19 +08:00
Alex Ling	d809c21ee1	Document `CacheEntry`	2021-09-06 08:23:54 +00:00
Alex Ling	ca1e221b10	Rename `ids2entries` -> `ids_to_entries`	2021-09-06 08:23:31 +00:00
Alex Ling	44d9c51ff9	Fix logging	2021-09-06 08:10:42 +00:00
Alex Ling	15a54f4f23	Add `:sorted_entries` suffix to `gen_key`	2021-09-06 08:10:13 +00:00
Alex Ling	51806f18db	Rename config fields and improve logging	2021-09-06 03:35:46 +00:00
Alex Ling	79ef7bcd1c	Remove unused variable	2021-09-06 03:01:21 +00:00
Leeingnyo	5cb85ea857	Set cached data when changed	2021-09-06 09:41:46 +09:00
Leeingnyo	9807db6ac0	Fix bug on entry_cover_url_cache	2021-09-06 02:32:13 +09:00
Leeingnyo	565a535d22	Remove caching verbosely, add cached_cover_url	2021-09-06 02:32:13 +09:00
Alex Ling	c5b6a8b5b9	Improve instance_size for Tuple	2021-09-05 13:57:20 +00:00
Leeingnyo	c75c71709f	make check	2021-09-05 11:21:53 +09:00
Leeingnyo	11976b15f9	Make LRUCache togglable	2021-09-05 03:02:20 +09:00
Leeingnyo	847f516a65	Cache TitleInfo using LRUCache	2021-09-05 02:35:44 +09:00
Leeingnyo	de410f42b8	Replace InfoCache to LRUCache	2021-09-05 02:08:11 +09:00
Leeingnyo	0fd7caef4b	Rename	2021-09-05 00:02:05 +09:00
Leeingnyo	5e919d3e19	Make entry generic	2021-09-04 23:56:17 +09:00
Leeingnyo	9e90aa17b9	Move entry specific method	2021-09-04 14:37:05 +09:00
Leeingnyo	0a8fd993e5	Use bytesize and add comments	2021-09-03 11:11:28 +09:00
Leeingnyo	365f71cd1d	Change kbs to mbs	2021-08-30 23:10:08 +09:00
Leeingnyo	601346b209	Set cache if enabled	2021-08-30 23:07:59 +09:00
Leeingnyo	e988a8c121	Add config for sorted entries cache optional	2021-08-30 22:59:23 +09:00
Leeingnyo	bf81a4e48b	Implement sorted entries cache sorted_entries cached	2021-08-30 22:58:40 +09:00
Leeingnyo	4a09aee177	Implement library caching TitleInfo * Cache sum of entry progress * Cache cover_url * Cache display_name * Cache sort_opt	2021-08-30 11:31:45 +09:00
Leeingnyo	00c9cc1fcd	Prevent saving a sort opt unnecessarily	2021-08-30 11:31:45 +09:00
Leeingnyo	51a47b5ddd	Cache display_name	2021-08-30 11:31:45 +09:00
Leeingnyo	244f97a68e	Cache entries' cover_url	2021-08-30 08:24:40 +09:00
Alex Ling	8d84a3c502	Merge pull request #221 from hkalexling/rc/0.23.0 v0.23.0	2021-08-28 18:44:50 +08:00
Alex Ling	a26b4b3965	Add Discord badge	2021-08-28 10:27:43 +00:00
Alex Ling	f2dd20cdec	Bump version to 0.23.0	2021-08-22 08:20:24 +00:00
Alex Ling	64d6cd293c	Remove MangaDex from README	2021-08-22 08:20:01 +00:00
Alex Ling	08dc0601e8	Remove page_margin from README	2021-08-22 08:18:28 +00:00
Alex Ling	9c983df7e9	Merge pull request #216 from Leeingnyo/feature/update-crystal-1.0 Update crystal version to 1.0	2021-08-22 15:59:20 +08:00
Alex Ling	efc547f5b2	Fix "Executing query" spam in log	2021-08-22 07:34:29 +00:00
Alex Ling	995ca3b40f	Update ARM Dockerfile	2021-08-20 08:26:11 +00:00
Alex Ling	864435d3f9	Upgrade dependencies for Crystal 1.0.0	2021-08-20 07:15:16 +00:00
Alex Ling	64c145cf80	Merge branch 'dev' of https://github.com/hkalexling/Mango into feature/update-crystal-1.0	2021-08-20 00:36:38 +00:00
Alex Ling	6549253ed1	Merge branch 'dev' of https://github.com/hkalexling/Mango into dev	2021-08-20 00:26:59 +00:00
Alex Ling	d9565718a4	Remove MangaDex integration	2021-08-20 00:25:21 +00:00
Alex Ling	400c3024fd	Merge pull request #219 from Leeingnyo/feature/enhance-paged-mode Enhance the paged mode reader	2021-08-20 08:13:39 +08:00
Leeingnyo	a703175b3a	Parenthesize to avoid a misbehavior	2021-08-19 15:03:01 +09:00
Leeingnyo	83b122ab75	Implement a controller to toggle flip animation	2021-08-18 23:46:45 +09:00
Leeingnyo	1e7d6ba5b1	Keep an image ratio at the paged mode, clamping the image in a screen	2021-08-18 23:46:45 +09:00
Leeingnyo	4d1ad8fb38	Prevent load images	2021-08-18 23:46:45 +09:00
Leeingnyo	d544252e3e	Add preload lookahead controller	2021-08-18 23:46:45 +09:00
Leeingnyo	b02b28d3e3	Implement to preload images when viewer is paged mode	2021-08-18 23:07:38 +09:00
Leeingnyo	d7efe1e553	Use yaml-static in Dockerfile	2021-08-18 21:23:28 +09:00
Alex Ling	1973564272	Revert "Subscription manager" This reverts commit `a612500b0f`.	2021-08-18 12:09:59 +00:00
Alex Ling	29923f6dc7	Merge pull request #214 from Leeingnyo/feature/http-cache HTTP cache for thumbnails, pages, dimensions	2021-08-18 07:37:21 +08:00
Leeingnyo	4a261d5ff8	Set Cache-Control header at page, dimensions API	2021-08-18 01:33:22 +09:00
Alex Ling	31d425d462	Document the 304 responses	2021-08-17 07:14:24 +00:00
Leeingnyo	a21681a6d7	Update a container version of bulid workflow	2021-08-16 13:23:58 +09:00
Leeingnyo	208019a0b9	Update Docker image	2021-08-16 01:48:18 +09:00
Leeingnyo	54e2a54ecb	Update cyrstal-lang, libraries	2021-08-16 01:48:18 +09:00
Leeingnyo	2426ef05ec	Apply cache on dimensions api Use zip_path and mtime for hashing It used for weak validation	2021-08-15 21:41:44 +09:00
Leeingnyo	25b90a8724	Apply cache on page, cover api Get image data and use it for hashing	2021-08-15 21:33:08 +09:00
Alex Ling	cd8944ed2d	Slim option in library and title APIs	2021-04-25 12:41:37 +00:00
Alex Ling	7f0c256fe6	Log login errors	2021-04-25 12:41:29 +00:00
Alex Ling	46e6e41bfe	Fix reader buttons stacking on mobile	2021-03-29 00:41:33 +00:00
Alex Ling	c9f55e7a8e	Use yaml-static	2021-03-28 12:49:50 +00:00
Alex Ling	741c3a4e20	Update config example in README	2021-03-28 11:56:06 +00:00
Alex Ling	f6da20321d	Bump version to 0.22.0	2021-03-28 11:49:49 +00:00
Alex Ling	2764e955b2	Show success alert on plugin download page	2021-03-15 17:07:15 +00:00
Alex Ling	00c15014a1	Document subscription APIs	2021-03-15 07:12:30 +00:00
Alex Ling	c6fdbfd9fd	Better format ranges on subscription manager page	2021-03-15 07:12:10 +00:00
Alex Ling	e03bf32358	Show success alerts on the download page	2021-03-14 17:36:43 +00:00
Alex Ling	bbf1520c73	Make `in_range?` private	2021-03-14 17:36:26 +00:00
Alex Ling	8950c3a1ed	Fix downloader stuck on external chapters	2021-03-14 16:27:08 +00:00
Alex Ling	17837d8a29	Add tooltips to download manager	2021-03-14 16:03:37 +00:00
Alex Ling	b4a69425c8	Reverse the queue on download manager	2021-03-14 16:01:29 +00:00
Alex Ling	a612500b0f	Subscription manager	2021-03-14 16:01:29 +00:00
Alex Ling	9bb7144479	Fix warning	2021-03-12 15:28:39 +00:00
Alex Ling	ee52c52f46	Fix new linter errors	2021-03-12 15:03:12 +00:00
Alex Ling	daec2bdac6	Update ameba	2021-03-12 14:06:20 +00:00
Alex Ling	e9a490676b	Update the mangadex shard	2021-03-12 13:59:11 +00:00
Alex Ling	757f7c8214	Upgrade Crystal to 0.36.1	2021-03-12 13:41:24 +00:00
Alex Ling	eed1a9717e	Merge branch 'master' into dev	2021-03-10 16:48:51 +00:00
Alex Ling	0b3e78bcb7	Merge branch 'rc/0.21.0' into dev	2021-03-09 16:45:26 +00:00
Alex Ling	6a275286ea	Merge branch 'rc/0.21.0' into dev	2021-03-07 14:14:46 +00:00
Alex Ling	d3f26ecbc9	Move the page margin config to frontend	2021-03-06 15:04:44 +00:00