feat: tidy things up and implement more renderers

- Finished Library parser
- Fixed search continuations
- Improved channel parser
- Improved playlist parser
- Added support for posts of type poll
- Improved History parser
- Removed redundant code

lib/core/Feed.js

@@ -13,8 +13,8 @@ class Feed {
   
   /** @type {import('../core/Actions')} */
   #actions;
-
-  memo;
+  
+  #memo;
   
   constructor(actions, data, already_parsed = false) {
     if (data.on_response_received_actions || data.on_response_received_endpoints || already_parsed) {
@@ -23,30 +23,23 @@ class Feed {
       this.#page = ResultsParser.parseResponse(data);
     }
 
-    this.memo =
+    this.#memo =
+    
     this.#page.on_response_received_commands ?
       this.#page.on_response_received_commands_memo:
-    this.#page.on_response_received_actions ?
-      this.#page.on_response_received_actions_memo:
+  
     this.#page.on_response_received_endpoints ?
       this.#page.on_response_received_endpoints_memo:
-    this.#page.contents_memo;
-
+   
+    this.#page.contents ?
+      this.#page.contents_memo:
+  
+    this.#page.on_response_received_actions ?
+      this.#page.on_response_received_actions_memo: [];
+    
     this.#actions = actions;
   }
 
-
-  /**
-   * Get the original page data
-   */
-  get page() {
-    return this.#page;
-  }
-
-  get actions() {
-    return this.#actions;
-  }
-
   /**
    * Get all videos on a given page via memo
    *
@@ -87,25 +80,16 @@ class Feed {
    * Get all the videos in the feed
    */
   get videos() {
-    return Feed.getVideosFromMemo(this.memo);
-  }
-
-  /**
-   * Get all playlists in the feed
-   *
-   * @returns {Array<import('../parser/contents/classes/Playlist') | import('../parser/contents/classes/GridPlaylist')>}
-   */
-  get playlists() {
-    return Feed.getPlaylistsFromPage(this.memo);
+    return Feed.getVideosFromMemo(this.#memo);
   }
 
   /**
    * Get all the community posts in the feed
    *
-   * @returns {import('../parser/contents/classes/BackstagePost')[]}
+   * @returns {import('../parser/contents/classes/BackstagePost')[] | import('../parser/contents/classes/Post')[]}
    */
-  get backstage_posts() {
-    return this.memo.get('BackstagePost');
+  get posts() {
+    return this.#memo.get('BackstagePost') || this.#memo.get('Post') || [];
   }
 
   /**
@@ -114,15 +98,93 @@ class Feed {
    * @returns {Array<import('../parser/contents/Channel') | import('../parser/contents/GridChannel')>}
    */
   get channels() {
-    const channels = this.memo.get('Channel') || [];
-    const grid_channels = this.memo.get('GridChannel') || [];
+    const channels = this.#memo.get('Channel') || [];
+    const grid_channels = this.#memo.get('GridChannel') || [];
     return [...channels, ...grid_channels];
   }
-
-  get has_continuation() {
-    return (this.memo.get('ContinuationItem') || []).length > 0;
+  
+  /**
+   * Get all playlists in the feed
+   *
+   * @returns {Array<import('../parser/contents/classes/Playlist') | import('../parser/contents/classes/GridPlaylist')>}
+   */
+  get playlists() {
+    return Feed.getPlaylistsFromMemo(this.#memo);
   }
-
+  
+  get memo() {
+    return this.#memo;
+  }
+  
+  /**
+   * Returns contents from the page.
+   *
+   * @returns {*}
+   */
+  get contents() {
+    const tab_content = this.#memo.get('Tab')?.[0]?.content;
+    const reload_continuation_items = this.#memo.get('reloadContinuationItemsCommand')?.[0];
+    const append_continuation_items = this.#memo.get('appendContinuationItemsAction')?.[0];
+    
+    return tab_content || reload_continuation_items || append_continuation_items;
+  }
+  
+   /**
+    * Returns all segments/sections from the page.
+    *
+    * @returns {import('../parser/contents/Shelf')[] | import('../parser/contents/RichShelf')[] | import('../parser/contents/ReelShelf')[]}
+    */
+  get shelves() {
+    const shelf = this.#page.contents_memo.get('Shelf') || [];
+    const rich_shelf = this.#page.contents_memo.get('RichShelf') || [];
+    const reel_shelf = this.#page.contents_memo.get('ReelShelf') || [];
+    
+    return [ ...shelf, ...rich_shelf, ...reel_shelf ];
+  }
+  
+  /**
+   * Finds shelf by title.
+   *
+   * @param {string} title
+   */
+  getShelf(title) {
+    return this.shelves.find(shelf => shelf.title.toString() === title);
+  }
+  
+  /**
+   * Returns secondary contents from the page.
+   *
+   * @returns {*}
+   */
+  get secondary_contents() {
+    return this.page.contents?.secondary_contents;
+  }
+  
+  get actions() {
+    return this.#actions;
+  }
+  
+  /**
+   * Get the original page data
+   */
+  get page() {
+    return this.#page;
+  }
+  
+  /**
+   * Checks if the feed has continuation.
+   *
+   * @returns {boolean}
+   */
+  get has_continuation() {
+    return (this.#memo.get('ContinuationItem') || []).length > 0;
+  }
+  
+  /**
+   * Retrieves continuation data as it is.
+   *
+   * @returns {Promise.<any>}
+   */
   async getContinuationData() {
     if (this.#continuation) {
       if (this.#continuation.length > 1)
@@ -135,29 +197,19 @@ class Feed {
       return response;
     }
 
-    this.#continuation = this.memo.get('ContinuationItem');
+    this.#continuation = this.#memo.get('ContinuationItem');
 
     if (this.#continuation)
       return this.getContinuationData();
 
     return null;
   }
-
-  get shelves() {
-    return this.#page.contents_memo.get('Shelf');
-  }
-
-  getShelf(title) {
-    return this.shelves.find(shelf => shelf.title.toString() === title);
-  }
-
-  get shelf_content() {
-    return this.shelves.map(shelf => ({
-      title: shelf.title.toString(),
-      content: shelf.content.contents,
-    }));
-  }
-
+  
+  /**
+   * Retrieves next batch of contents and returns a new {@link Feed} object.
+   *
+   * @returns {Promise.<Feed>}
+   */
   async getContinuation() {
     const continuation_data = await this.getContinuationData();
     return new Feed(this.actions, continuation_data, true);