Subscription manager

src/config.cr

@@ -33,8 +33,10 @@ class Config
     "download_retries"       => 4,
     "download_queue_db_path" => File.expand_path("~/mango/queue.db",
       home: true),
-    "chapter_rename_rule" => "[Vol.{volume} ][Ch.{chapter} ]{title|id}",
-    "manga_rename_rule"   => "{title}",
+    "chapter_rename_rule" => "[Vol.{volume} ]" \
+                             "[Ch.{chapter} ]{title|id}",
+    "manga_rename_rule"                  => "{title}",
+    "subscription_update_interval_hours" => 24,
   }
 
   @@singlet : Config?

src/library/library.cr

@@ -42,6 +42,25 @@ class Library
         end
       end
     end
+
+    subscription_interval = Config.current
+      .mangadex["subscription_update_interval_hours"].as Int32
+    unless subscription_interval < 1
+      spawn do
+        loop do
+          subscriptions = Storage.default.subscriptions
+          Logger.info "Checking MangaDex for updates on " \
+                      "#{subscriptions.size} subscriptions"
+          added_count = 0
+          subscriptions.each do |sub|
+            added_count += sub.check_for_updates
+          end
+          Logger.info "Subscription update completed. Added #{added_count} " \
+                      "chapters to the download queue"
+          sleep subscription_interval.hours
+        end
+      end
+    end
   end
 
   def titles

src/mangadex/ext.cr

@@ -56,5 +56,39 @@ module MangaDex
       hash["full_title"] = JSON::Any.new full_title
       hash.to_json
     end
+
+    # We don't need to rename the manga title here. It will be renamed in
+    #   src/mangadex/downloader.cr
+    def to_job : Queue::Job
+      Queue::Job.new(
+        id.to_s,
+        manga_id.to_s,
+        full_title,
+        manga_title,
+        Queue::JobStatus::Pending,
+        Time.unix timestamp
+      )
+    end
+  end
+
+  struct User
+    def updates_after(time : Time, &block : Chapter ->)
+      page = 1
+      stopped = false
+      until stopped
+        chapters = followed_updates(page: page).chapters
+        return if chapters.empty?
+        chapters.each do |c|
+          if time > Time.unix c.timestamp
+            stopped = true
+            break
+          end
+          yield c
+        end
+        page += 1
+        # Let's not DDOS MangaDex :)
+        sleep 5.seconds
+      end
+    end
   end
 end

src/routes/api.cr

@@ -961,23 +961,95 @@ struct APIRouter
     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,
+          "manga"   => get_client(env).partial_search query,
+        }.to_json
+      rescue e
+        Logger.error e
+        send_json env, {
+          "success" => false,
+          "error"   => e.message,
+        }.to_json
+      end
+    end
+
+    get "/api/admin/mangadex/subscriptions" do |env|
+      begin
+        send_json env, {
+          "success"       => true,
+          "error"         => nil,
+          "subscriptions" => Storage.default.subscriptions,
+        }.to_json
+      rescue e
+        Logger.error e
+        send_json env, {
+          "success" => false,
+          "error"   => e.message,
+        }.to_json
+      end
+    end
+
+    post "/api/admin/mangadex/subscriptions" do |env|
+      begin
+        json = env.params.json["subscription"].as Hash(String, JSON::Any)
+        sub = Subscription.new json["manga"].as_i64, get_username env
+        sub.language = json["language"]?.try &.as_s?
+        sub.group_id = json["groupId"]?.try &.as_i64?
+        sub.min_volume = json["volumeMin"]?.try &.as_i64?
+        sub.max_volume = json["volumeMax"]?.try &.as_i64?
+        sub.min_chapter = json["chapterMin"]?.try &.as_i64?
+        sub.max_chapter = json["chapterMax"]?.try &.as_i64?
+
+        Storage.default.save_subscription sub
+
+        send_json env, {
+          "success" => true,
+          "error"   => nil,
+        }.to_json
+      rescue e
+        Logger.error e
+        send_json env, {
+          "success" => false,
+          "error"   => e.message,
+        }.to_json
+      end
+    end
+
+    delete "/api/admin/mangadex/subscriptions/:id" do |env|
+      begin
+        id = env.params.url["id"].to_i64
+        Storage.default.delete_subscription id, get_username env
+        send_json env, {
+          "success" => true,
+          "error"   => nil,
+        }.to_json
+      rescue e
+        Logger.error e
+        send_json env, {
+          "success" => false,
+          "error"   => e.message,
+        }.to_json
+      end
+    end
+
+    post "/api/admin/mangadex/subscriptions/check/:id" do |env|
+      begin
+        id = env.params.url["id"].to_i64
+        username = get_username env
+        sub = Storage.default.get_subscription id, username
+        unless sub
+          raise "Subscription with id #{id} not found under user #{username}"
+        end
+        spawn do
+          sub.check_for_updates
+        end
+        send_json env, {
+          "success" => true,
+          "error"   => nil,
         }.to_json
       rescue e
         Logger.error e

src/routes/main.cr

@@ -95,6 +95,12 @@ struct MainRouter
       end
     end
 
+    get "/download/subscription" do |env|
+      mangadex_base_url = Config.current.mangadex["base_url"]
+      username = get_username env
+      layout "subscription"
+    end
+
     get "/" do |env|
       begin
         username = get_username env

src/storage.cr

@@ -5,6 +5,7 @@ require "base64"
 require "./util/*"
 require "mg"
 require "../migration/*"
+require "./subscription"
 
 def hash_password(pw)
   Crypto::Bcrypt::Password.create(pw).to_s
@@ -14,6 +15,9 @@ def verify_password(hash, pw)
   (Crypto::Bcrypt::Password.new hash).verify pw
 end
 
+SUB_ATTR = %w(manga_id language group_id min_volume max_volume min_chapter
+  max_chapter username)
+
 class Storage
   @@insert_entry_ids = [] of IDTuple
   @@insert_title_ids = [] of IDTuple
@@ -545,6 +549,70 @@ class Storage
     {token, expires}
   end
 
+  def save_subscription(sub : Subscription)
+    MainFiber.run do
+      get_db do |db|
+        {% begin %}
+          db.exec "insert into subscription (#{SUB_ATTR.join ","}, " \
+            "last_checked, created_at) values " \
+            "(#{Array.new(SUB_ATTR.size + 2, "?").join ","})",
+          {% for type in SUB_ATTR %}
+            sub.{{type.id}},
+          {% end %}
+          sub.last_checked.to_unix, sub.created_at.to_unix
+        {% end %}
+      end
+    end
+  end
+
+  def subscriptions : Array(Subscription)
+    subs = [] of Subscription
+    MainFiber.run do
+      get_db do |db|
+        db.query "select * from subscription" do |rs|
+          subs += Subscription.from_rs rs
+        end
+      end
+    end
+    subs
+  end
+
+  def delete_subscription(id : Int64, username : String)
+    MainFiber.run do
+      get_db do |db|
+        db.exec "delete from subscription where id = (?) and username = (?)",
+          id, username
+      end
+    end
+  end
+
+  def get_subscription(id : Int64, username : String) : Subscription?
+    sub = nil
+    MainFiber.run do
+      get_db do |db|
+        db.query "select * from subscription where id = (?) and " \
+                 "username = (?) limit 1", id, username do |rs|
+          sub = Subscription.from_rs(rs).first?
+        end
+      end
+    end
+    sub
+  end
+
+  def update_subscription_last_checked(id : Int64? = nil)
+    MainFiber.run do
+      get_db do |db|
+        if id
+          db.exec "update subscription set last_checked = (?) where id = (?)",
+            Time.utc.to_unix, id
+        else
+          db.exec "update subscription set last_checked = (?)",
+            Time.utc.to_unix
+        end
+      end
+    end
+  end
+
   def close
     MainFiber.run do
       unless @db.nil?

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
+
+  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

src/util/web.cr

@@ -107,6 +107,25 @@ macro get_sort_opt
   end
 end
 
+# Returns an authorized client
+def get_client(username : String) : MangaDex::Client
+  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
+
+  client
+end
+
+def get_client(env) : MangaDex::Client
+  get_client get_username env
+end
+
 module HTTP
   class Client
     private def self.exec(uri : URI, tls : TLSContext = nil)

src/views/download-manager.html.ecr

@@ -5,61 +5,63 @@
     <button class="uk-button uk-button-default" @click="load()" :disabled="loading">Refresh Queue</button>
     <button class="uk-button uk-button-default" x-show="paused !== undefined" x-text="paused ? 'Resume Download' : 'Pause Download'" @click="toggle()" :disabled="toggling"></button>
   </div>
-  <table class="uk-table uk-table-striped uk-overflow-auto">
-    <thead>
-      <tr>
-        <th>Chapter</th>
-        <th>Manga</th>
-        <th>Progress</th>
-        <th>Time</th>
-        <th>Status</th>
-        <th>Plugin</th>
-        <th>Actions</th>
-      </tr>
-    </thead>
-    <tbody>
-      <template x-for="job in jobs" :key="job">
-        <tr :id="`chapter-${job.id}`">
-
-          <template x-if="job.plugin_id">
-            <td x-text="job.title"></td>
-          </template>
-          <template x-if="!job.plugin_id">
-            <td><a :href="`<%= mangadex_base_url %>/chapter/${job.id}`" x-text="job.title"></td>
-          </template>
-
-          <template x-if="job.plugin_id">
-            <td x-text="job.manga_title"></td>
-          </template>
-          <template x-if="!job.plugin_id">
-            <td><a :href="`<%= mangadex_base_url %>/manga/${job.manga_id}`" x-text="job.manga_title"></td>
-          </template>
-
-          <td x-text="`${job.success_count}/${job.pages}`"></td>
-          <td x-text="`${moment(job.time).fromNow()}`"></td>
-
-          <td>
-            <span :class="statusClass(job.status)" x-text="job.status"></span>
-            <template x-if="job.status_message.length > 0">
-              <div class="uk-inline">
-                <span uk-icon="info"></span>
-                <div uk-dropdown x-text="job.status_message" style="white-space: pre-line;"></div>
-              </div>
-            </template>
-          </td>
-
-          <td x-text="`${job.plugin_id || ''}`"></td>
-
-          <td>
-            <a @click="jobAction('delete', $event)" uk-icon="trash"></a>
-            <template x-if="job.status_message.length > 0">
-              <a @click="jobAction('retry', $event)" uk-icon="refresh"></a>
-            </template>
-          </td>
+  <div class="uk-overflow-auto">
+    <table class="uk-table uk-table-striped">
+      <thead>
+        <tr>
+          <th>Chapter</th>
+          <th>Manga</th>
+          <th>Progress</th>
+          <th>Time</th>
+          <th>Status</th>
+          <th>Plugin</th>
+          <th>Actions</th>
         </tr>
-      </template>
-    </tbody>
-  </table>
+      </thead>
+      <tbody>
+        <template x-for="job in jobs" :key="job">
+          <tr :id="`chapter-${job.id}`">
+
+            <template x-if="job.plugin_id">
+              <td x-text="job.title"></td>
+            </template>
+            <template x-if="!job.plugin_id">
+              <td><a :href="`<%= mangadex_base_url %>/chapter/${job.id}`" x-text="job.title"></td>
+            </template>
+
+            <template x-if="job.plugin_id">
+              <td x-text="job.manga_title"></td>
+            </template>
+            <template x-if="!job.plugin_id">
+              <td><a :href="`<%= mangadex_base_url %>/manga/${job.manga_id}`" x-text="job.manga_title"></td>
+            </template>
+
+            <td x-text="`${job.success_count}/${job.pages}`"></td>
+            <td x-text="`${moment(job.time).fromNow()}`"></td>
+
+            <td>
+              <span :class="statusClass(job.status)" x-text="job.status"></span>
+              <template x-if="job.status_message.length > 0">
+                <div class="uk-inline">
+                  <span uk-icon="info"></span>
+                  <div uk-dropdown x-text="job.status_message" style="white-space: pre-line;"></div>
+                </div>
+              </template>
+            </td>
+
+            <td x-text="`${job.plugin_id || ''}`"></td>
+
+            <td>
+              <a @click="jobAction('delete', $event)" uk-icon="trash"></a>
+              <template x-if="job.status_message.length > 0">
+                <a @click="jobAction('retry', $event)" uk-icon="refresh"></a>
+              </template>
+            </td>
+          </tr>
+        </template>
+      </tbody>
+    </table>
+  </div>
 </div>
 
 <% content_for "script" do %>

src/views/download.html.ecr

@@ -1,162 +1,170 @@
 <h2 class=uk-title>Download from MangaDex</h2>
 <div x-data="downloadComponent()" x-init="init()">
-  <div class="uk-grid-small" uk-grid style="margin-bottom:40px;">
-    <div class="uk-width-expand">
-      <input class="uk-input" type="text" :placeholder="searchAvailable ? 'Search MangaDex or enter a manga ID/URL' : 'MangaDex manga ID or URL'" x-model="searchInput" @keydown.enter.debounce="search()">
-    </div>
-    <div class="uk-width-auto">
-      <div uk-spinner class="uk-align-center" x-show="loading" x-cloak></div>
-      <button class="uk-button uk-button-default" x-show="!loading" @click="search()">Search</button>
-    </div>
-  </div>
-
-  <template x-if="mangaAry">
-    <div>
-      <p x-show="mangaAry.length === 0">No matching manga found.</p>
-
-      <div class="uk-child-width-1-4@m uk-child-width-1-2" uk-grid>
-        <template x-for="manga in mangaAry" :key="manga.id">
-          <div class="item" :data-id="manga.id" @click="chooseManga(manga)">
-            <div class="uk-card uk-card-default">
-              <div class="uk-card-media-top uk-inline">
-                <img uk-img :data-src="manga.mainCover">
-              </div>
-              <div class="uk-card-body">
-                <h3 class="uk-card-title break-word uk-margin-remove-bottom free-height" x-text="manga.title"></h3>
-                <p class="uk-text-meta" x-text="`ID: ${manga.id}`"></p>
-              </div>
-            </div>
-          </div>
-        </template>
-      </div>
-    </div>
-  </template>
-
-  <div x-show="data && data.chapters" x-cloak>
-    <div class"uk-grid-small" uk-grid>
-      <div class="uk-width-1-4@s">
-        <img :src="data.mainCover">
-      </div>
-      <div class="uk-width-1-4@s">
-        <p>Title: <a :href="`<%= mangadex_base_url %>/manga/${data.id}`" x-text="data.title"></a></p>
-        <p x-text="`Artist: ${data.artist}`"></p>
-        <p x-text="`Author: ${data.author}`"></p>
-      </div>
-      <div class="uk-form-stacked uk-width-1-2@s" id="filters">
-        <p class="uk-text-lead uk-margin-remove-bottom">Filter Chapters</p>
-        <p class="uk-text-meta uk-margin-remove-top" x-text="`${chapters.length} chapters found`"></p>
-        <div class="uk-margin">
-          <label class="uk-form-label">Language</label>
-          <div class="uk-form-controls">
-            <select class="uk-select filter-field" x-model="langChoice" @change="filtersUpdated()">
-              <template x-for="lang in languages" :key="lang">
-                <option x-text="lang"></option>
-              </template>
-            </select>
-          </div>
+    <div class="uk-grid-small" uk-grid style="margin-bottom:40px;">
+        <div class="uk-width-expand">
+            <input class="uk-input" type="text" :placeholder="searchAvailable ? 'Search MangaDex or enter a manga ID/URL' : 'MangaDex manga ID or URL'" x-model="searchInput" @keydown.enter.debounce="search()">
         </div>
-
-        <div class="uk-margin">
-          <label class="uk-form-label">Group</label>
-          <div class="uk-form-controls">
-            <select class="uk-select filter-field" x-model="groupChoice" @change="filtersUpdated()">
-              <template x-for="group in groups" :key="group">
-                <option x-text="group"></option>
-              </template>
-            </select>
-          </div>
+        <div class="uk-width-auto">
+            <div uk-spinner class="uk-align-center" x-show="loading" x-cloak></div>
+            <button class="uk-button uk-button-default" x-show="!loading" @click="search()">Search</button>
         </div>
-
-        <div class="uk-margin">
-          <label class="uk-form-label">Volume</label>
-          <div class="uk-form-controls">
-            <input class="uk-input filter-field" type="text" placeholder="e.g., 127, 10-14, >30, <=212, or leave it empty." x-model="volumeRange" @keydown.enter="filtersUpdated()">
-          </div>
-        </div>
-
-        <div class="uk-margin">
-          <label class="uk-form-label">Chapter</label>
-          <div class="uk-form-controls">
-            <input class="uk-input filter-field" type="text" placeholder="e.g., 127, 10-14, >30, <=212, or leave it empty." x-model="chapterRange" @keydown.enter="filtersUpdated()">
-          </div>
-        </div>
-      </div>
     </div>
 
-    <div class="uk-margin">
-      <div class="uk-margin">
-        <button class="uk-button uk-button-default" @click="selectAll()">Select All</button>
-        <button class="uk-button uk-button-default" @click="clearSelection()">Clear Selections</button>
-        <button class="uk-button uk-button-primary" @click="download()" x-show="!addingToDownload">Download Selected</button>
-        <div uk-spinner class="uk-margin-left" x-show="addingToDownload"></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>
-    </div>
-    <p x-text="`Mango can only list ${chaptersLimit} chapters, but we found ${chapters.length} chapters. Please use the filter options above to narrow down your search.`" x-show="chapters.length > chaptersLimit"></p>
-    <table class="uk-table uk-table-striped uk-overflow-auto" x-show="chapters.length <= chaptersLimit">
-      <thead>
-        <tr>
-          <th>ID</th>
-          <th>Title</th>
-          <th>Language</th>
-          <th>Group</th>
-          <th>Volume</th>
-          <th>Chapter</th>
-          <th>Timestamp</th>
-        </tr>
-      </thead>
+    <template x-if="mangaAry">
+        <div>
+            <p x-show="mangaAry.length === 0">No matching manga found.</p>
 
-      <template x-if="chapters.length <= chaptersLimit">
-        <tbody id="selectable">
-          <template x-for="chp in chapters" :key="chp">
-            <tr class="ui-widget-content">
-              <td><a :href="`<%= mangadex_base_url %>/chapter/${chp.id}`" x-text="chp.id"></a></td>
-              <td x-text="chp.title"></td>
-              <td x-text="chp.language"></td>
-              <td>
-                <template x-for="grp in Object.entries(chp.groups)">
-                  <div>
-                    <a :href="`<%= mangadex_base_url %>/group/${grp[1]}`" x-text="grp[0]"></a>
-                  </div>
+            <div class="uk-child-width-1-4@m uk-child-width-1-2" uk-grid>
+                <template x-for="manga in mangaAry" :key="manga.id">
+                    <div class="item" :data-id="manga.id" @click="chooseManga(manga)">
+                        <div class="uk-card uk-card-default">
+                            <div class="uk-card-media-top uk-inline">
+                                <img uk-img :data-src="manga.mainCover">
+                            </div>
+                            <div class="uk-card-body">
+                                <h3 class="uk-card-title break-word uk-margin-remove-bottom free-height" x-text="manga.title"></h3>
+                                <p class="uk-text-meta" x-text="`ID: ${manga.id}`"></p>
+                            </div>
+                        </div>
+                    </div>
                 </template>
-              </td>
-              <td x-text="chp.volume"></td>
-              <td x-text="chp.chapter"></td>
-              <td x-text="`${moment.unix(chp.timestamp).fromNow()}`"></td>
-            </tr>
-          </template>
-        </tbody>
-      </template>
-    </table>
-  </div>
-
-  <div id="modal" class="uk-flex-top" uk-modal="container: false">
-    <div class="uk-modal-dialog uk-margin-auto-vertical">
-      <button class="uk-modal-close-default" type="button" uk-close></button>
-      <div class="uk-modal-header">
-        <h3 class="uk-modal-title break-word" x-text="candidateManga.title"></h3>
-      </div>
-      <div class="uk-modal-body">
-        <div class="uk-grid">
-          <div class="uk-width-1-3@s">
-            <img uk-img data-width data-height :src="candidateManga.mainCover" style="width:100%;margin-bottom:10px;">
-            <a :href="`<%= mangadex_base_url %>/manga/${candidateManga.id}`" x-text="`ID: ${candidateManga.id}`" class="uk-link-muted"></a>
-          </div>
-          <div class="uk-width-2-3@s" uk-overflow-auto>
-            <p x-text="candidateManga.description"></p>
-          </div>
+            </div>
+        </div>
+    </template>
+
+    <div x-show="data && data.chapters" x-cloak>
+        <div class"uk-grid-small" uk-grid>
+            <div class="uk-width-1-4@s">
+                <img :src="data.mainCover">
+            </div>
+            <div class="uk-width-1-4@s">
+                <p>Title: <a :href="`<%= mangadex_base_url %>/manga/${data.id}`" x-text="data.title"></a></p>
+                <p x-text="`Artist: ${data.artist}`"></p>
+                <p x-text="`Author: ${data.author}`"></p>
+            </div>
+            <div class="uk-form-stacked uk-width-1-2@s" id="filters">
+                <p class="uk-text-lead uk-margin-remove-bottom">
+                <span>Filter Chapters</span>
+                <button class="uk-icon-button uk-align-right" uk-icon="rss" uk-tooltip="Subscribe" x-show="searchAvailable" @click="subscribe()"></button>
+                </p>
+                <p class="uk-text-meta uk-margin-remove-top" x-text="`${chapters.length} chapters found`"></p>
+                <div class="uk-margin">
+                    <label class="uk-form-label">Language</label>
+                    <div class="uk-form-controls">
+                        <select class="uk-select filter-field" x-model="langChoice" @change="filtersUpdated()">
+                            <template x-for="lang in languages" :key="lang">
+                                <option x-text="lang"></option>
+                            </template>
+                        </select>
+                    </div>
+                </div>
+
+                <div class="uk-margin">
+                    <label class="uk-form-label">Group</label>
+                    <div class="uk-form-controls">
+                        <select class="uk-select filter-field" x-model="groupChoice" @change="filtersUpdated()">
+                            <template x-for="group in groups" :key="group">
+                                <option x-text="group"></option>
+                            </template>
+                        </select>
+                    </div>
+                </div>
+
+                <div class="uk-margin">
+                    <label class="uk-form-label">Volume</label>
+                    <div class="uk-form-controls">
+                        <input class="uk-input filter-field" type="text" placeholder="e.g., 127, 10-14, >30, <=212, or leave it empty." x-model="volumeRange" @keydown.enter="filtersUpdated()">
+                    </div>
+                </div>
+
+                <div class="uk-margin">
+                    <label class="uk-form-label">Chapter</label>
+                    <div class="uk-form-controls">
+                        <input class="uk-input filter-field" type="text" placeholder="e.g., 127, 10-14, >30, <=212, or leave it empty." x-model="chapterRange" @keydown.enter="filtersUpdated()">
+                    </div>
+                </div>
+            </div>
+        </div>
+
+        <div class="uk-margin">
+            <div class="uk-margin">
+                <button class="uk-button uk-button-default" @click="selectAll()">Select All</button>
+                <button class="uk-button uk-button-default" @click="clearSelection()">Clear Selections</button>
+                <button class="uk-button uk-button-primary" @click="download()" x-show="!addingToDownload">Download Selected</button>
+                <div uk-spinner class="uk-margin-left" x-show="addingToDownload"></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>
+        </div>
+        <p x-text="`Mango can only list ${chaptersLimit} chapters, but we found ${chapters.length} chapters. Please use the filter options above to narrow down your search.`" x-show="chapters.length > chaptersLimit"></p>
+        <div class="uk-overflow-auto">
+            <table class="uk-table uk-table-striped" x-show="chapters.length <= chaptersLimit">
+                <thead>
+                    <tr>
+                        <th>ID</th>
+                        <th>Title</th>
+                        <th>Language</th>
+                        <th>Group</th>
+                        <th>Volume</th>
+                        <th>Chapter</th>
+                        <th>Timestamp</th>
+                    </tr>
+                </thead>
+
+                <template x-if="chapters.length <= chaptersLimit">
+                    <tbody id="selectable">
+                        <template x-for="chp in chapters" :key="chp">
+                            <tr class="ui-widget-content">
+                                <td><a :href="`<%= mangadex_base_url %>/chapter/${chp.id}`" x-text="chp.id"></a></td>
+                                <td x-text="chp.title"></td>
+                                <td x-text="chp.language"></td>
+                                <td>
+                                    <template x-for="grp in Object.entries(chp.groups)">
+                                        <div>
+                                            <a :href="`<%= mangadex_base_url %>/group/${grp[1]}`" x-text="grp[0]"></a>
+                                        </div>
+                                    </template>
+                                </td>
+                                <td x-text="chp.volume"></td>
+                                <td x-text="chp.chapter"></td>
+                                <td x-text="`${moment.unix(chp.timestamp).fromNow()}`"></td>
+                            </tr>
+                        </template>
+                    </tbody>
+                </template>
+            </table>
+        </div>
+    </div>
+
+    <div id="modal" class="uk-flex-top" uk-modal="container: false">
+        <div class="uk-modal-dialog uk-margin-auto-vertical">
+            <button class="uk-modal-close-default" type="button" uk-close></button>
+            <div class="uk-modal-header">
+                <h3 class="uk-modal-title break-word" x-text="candidateManga.title"></h3>
+            </div>
+            <div class="uk-modal-body">
+                <div class="uk-grid">
+                    <div class="uk-width-1-3@s">
+                        <img uk-img data-width data-height :src="candidateManga.mainCover" style="width:100%;margin-bottom:10px;">
+                        <a :href="`<%= mangadex_base_url %>/manga/${candidateManga.id}`" x-text="`ID: ${candidateManga.id}`" class="uk-link-muted"></a>
+                    </div>
+                    <div class="uk-width-2-3@s">
+                        <p x-text="candidateManga.description"></p>
+                    </div>
+                </div>
+            </div>
+            <div class="uk-modal-footer">
+                <button class="uk-button uk-button-primary" type="button" @click="confirmManga(candidateManga.id)">Choose</button>
+            </div>
         </div>
-      </div>
-      <div class="uk-modal-footer">
-        <button class="uk-button uk-button-primary" type="button" @click="confirmManga(candidateManga.id)">Choose</button>
-      </div>
     </div>
-  </div>
 </div>
 
 <% content_for "script" do %>
-  <%= render_component "moment" %>
-  <%= render_component "jquery-ui" %>
-  <script src="<%= base_url %>js/alert.js"></script>
-  <script src="<%= base_url %>js/download.js"></script>
+    <%= render_component "moment" %>
+    <%= render_component "jquery-ui" %>
+    <script>
+        const mangadex_base_url = "<%= mangadex_base_url %>";
+    </script>
+    <script src="<%= base_url %>js/alert.js"></script>
+    <script src="<%= base_url %>js/download.js"></script>
 <% end %>

src/views/layout.html.ecr

@@ -1,89 +1,91 @@
 <!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">MangaDex</a></li>
+                    <li><a href="<%= base_url %>download/plugins">Plugins</a></li>
+                    <li><a href="<%= base_url %>admin/downloads">Download Manager</a></li>
+                    <li><a href="<%= base_url %>download/subscription">Subscription 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">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>
+                    <li><a href="<%= base_url %>download/subscription">Subscription 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>

src/views/missing-items.html.ecr

@@ -3,34 +3,36 @@
   <div x-show="!empty">
     <p>The following items were present in your library, but now we can't find them anymore. If you deleted them mistakenly, try to recover the files or folders, put them back to where they were, and rescan the library. Otherwise, you can safely delete them and the associated metadata using the buttons below to free up database space.</p>
     <button class="uk-button uk-button-danger" @click="rmAll()">Delete All</button>
-    <table class="uk-table uk-table-striped uk-overflow-auto">
-      <thead>
-        <tr>
-          <th>Type</th>
-          <th>Relative Path</th>
-          <th>ID</th>
-          <th>Actions</th>
-        </tr>
-      </thead>
-      <tbody>
-        <template x-for="title in titles" :key="title">
-          <tr :id="`title-${title.id}`">
-            <td>Title</td>
-            <td x-text="title.path"></td>
-            <td x-text="title.id"></td>
-            <td><a @click="rm($event)" uk-icon="trash"></a></td>
+    <div class="uk-overflow-auto">
+      <table class="uk-table uk-table-striped">
+        <thead>
+          <tr>
+            <th>Type</th>
+            <th>Relative Path</th>
+            <th>ID</th>
+            <th>Actions</th>
           </tr>
-        </template>
-        <template x-for="entry in entries" :key="entry">
-          <tr :id="`entry-${entry.id}`">
-            <td>Entry</td>
-            <td x-text="entry.path"></td>
-            <td x-text="entry.id"></td>
-            <td><a @click="rm($event)" uk-icon="trash"></a></td>
-          </tr>
-        </template>
-      </tbody>
-    </table>
+        </thead>
+        <tbody>
+          <template x-for="title in titles" :key="title">
+            <tr :id="`title-${title.id}`">
+              <td>Title</td>
+              <td x-text="title.path"></td>
+              <td x-text="title.id"></td>
+              <td><a @click="rm($event)" uk-icon="trash"></a></td>
+            </tr>
+          </template>
+          <template x-for="entry in entries" :key="entry">
+            <tr :id="`entry-${entry.id}`">
+              <td>Entry</td>
+              <td x-text="entry.path"></td>
+              <td x-text="entry.id"></td>
+              <td><a @click="rm($event)" uk-icon="trash"></a></td>
+            </tr>
+          </template>
+        </tbody>
+      </table>
+    </div>
   </div>
 </div>
 

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 %>
 

src/views/subscription.html.ecr

@@ -0,0 +1,58 @@
+<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>Min Volume</th>
+                        <th>Max Volume</th>
+                        <th>Min Chapter</th>
+                        <th>Max Chapter</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="sub.min_volume || '0'"></td>
+                            <td x-text="sub.max_volume || '+∞'"></td>
+                            <td x-text="sub.min_chapter || '0'"></td>
+                            <td x-text="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 %>