/*Canopy - The next generation of stoner streaming software
Copyright (C) 2024-2025 Rainbownapkin and the TTN Community

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.*/

/**
 * Class containing base code for the Canopy channel client.
 */
class channel{
    /**
     * Instantiates a new channel object
     */
    constructor(){
        //Establish connetion to the server via socket.io
        this.connect();
        //Define socket listeners
        this.defineListeners();

        /**
         * Returns true once the ytEmbed API has loaded in from google (eww)
         */
        this.ytEmbedAPILoaded = false;

        /**
         * Current connected channels name
         */
        this.channelName = window.location.pathname.split('/c/')[1].split('/')[0];

        /**
         * Child Video Player object
         */
        this.player = new player(this);

        /**
         * Child Chat Box Object
         */
        this.chatBox = new chatBox(this);

        /**
         * Child User List Object
         */
        this.userList = new userList(this);
        
        /**
         * Child Canopy Panel Object
         */
        this.cPanel = new cPanel(this);

        //Set defaults for any unset settings and run any required process steps for the current config
        this.setDefaults(false, true);

        //Freak out any weirdos who take a peek in the dev console for shits n gigs
        console.log("👁️👄👁️ ℬℴ𝓊𝓃𝒿ℴ𝓊𝓇.");
    }

    /**
     * Handles initial client connection
     */
    connect(){
        this.socket = io({
            extraHeaders: {
                //Include CSRF token
                'x-csrf-token': utils.ajax.getCSRFToken()
            }
        });
    }

    /**
     * Defines network-related listeners
     */
    defineListeners(){
        this.socket.on("connect", () => {
            document.title = `${this.channelName} - Connected`
        });

        this.socket.on("kick", async (data) => {
            if(data.reason == "Invalid CSRF Token!"){
                //Reload the CSRF token
                await utils.ajax.reloadCSRFToken();

                //Retry the connection
                this.connect();
            }else{
                new canopyUXUtils.popup(`You have been ${data.type} from the channel for the following reason:<br>${data.reason}`);
            }
        });

        this.socket.on("clientMetadata", this.handleClientInfo.bind(this));

        this.socket.on("error", utils.ux.displayResponseError);

        this.socket.on("queue", (data) => {
            this.queue = new Map(data.queue);
        });

        this.socket.on("lock", (data) => {
            this.queueLock = data.locked;
        });
    }

    /**
     * Handles initial client-metadata ingestion from server upon connection
     * @param {Object} data - Data glob from server
     */
    handleClientInfo(data){
        //Ingest user data
        this.user = data.user;

        //Re-hydrate permission maps
        this.user.permMap.site = new Map(data.user.permMap.site);
        this.user.permMap.chan = new Map(data.user.permMap.chan);

        //Tell the chatbox to handle client info 
        //should it have its own event listener instead? Guess it's a stylistic choice :P
        this.chatBox.handleClientInfo(data);

        //Store queue for use by the queue panel
        this.queue = new Map(data.queue);

        //Store queue lock status
        this.queueLock = data.queueLock;

        //For each chat held in the chat buffer
        for(let chat of data.chatBuffer){
            //Display the chat
            this.chatBox.displayChat(chat);
        }
    }

    /**
     * Processes and applies default config on any unset settings
     * @param {Boolean} force - Whether or not to forcefully reset already set settings
     * @param {Boolean} processConfig - Whether or not to run the Process Config function once complete
     */
    setDefaults(force = false, processConfig = false){
        //Iterate through default config 
        for(let [key, value] of channel.defaultConfig){
            //If the setting is unset or function was called forcefully
            if(force || localStorage.getItem(key) == null){
                //Set item from default map
                localStorage.setItem(key, value);
            }

            //If we're running process steps for the config
            if(processConfig){
                //Process the current config value
                this.processConfig(key, localStorage.getItem(key));
            }
        }
    }

    /**
     * Run once every config change to ensure settings are properly set
     * @param {String} key - Setting to change
     * @param {*} value - Value to set setting to
     */
    processConfig(key, value){
        //Switch/case by config key
        switch(key){
            case 'ytPlayerType':
                const embedScript = document.querySelector(".yt-embed-api");
                //If the user is running the embedded player and we don't have en embed script loaded
                if(value == 'embed' && embedScript == null){
                    //Find our footer
                    const footer = document.querySelector('footer');

                    //Create new script tag
                    const ytEmbedAPI = document.createElement('script');
                    //Link the iframe api from youtube
                    ytEmbedAPI.src = "https://www.youtube.com/iframe_api";
                    //set the iframe api script id
                    ytEmbedAPI.classList.add('yt-embed-api');

                    //Append the script tag to the top of the footer to give everything else access
                    footer.prepend(ytEmbedAPI);
                //If we're not using the embed player but the script is loaded
                }else if(embedScript != null){
                    //Pull all scripts since the main one might have pulled others
                    const scripts = document.querySelectorAll('script');

                    //Iterate through all script tags on the page
                    for(let script of scripts){
                        //If the script came from youtube
                        if(script.src.match(/youtube\.com|youtu\.be/)){
                            //Rip it out
                            script.remove();
                        }
                    }
                }

                //If the player or mediaHandler isn't loaded
                if(this.player == null || this.player.mediaHandler == null){
                    //We're fuggin done here
                    return;
                }


                //Get current video
                const nowPlaying = this.player.mediaHandler.nowPlaying;

                //If we're playing a youtube video
                if(nowPlaying != null && nowPlaying.type == 'yt'){
                    //Restart the video
                    this.player.start({media: nowPlaying});
                }

                //Stop while we're ahead
                return;
        }
    }

    /**
     * Default channel config
     */
    static defaultConfig = new Map([
        ["ytPlayerType","raw"]
    ]);
}

/**
 * Youtube iframe-embed API entry point
 */
function onYouTubeIframeAPIReady(){
    //Set embed api to true
    client.ytEmbedAPILoaded = true;

    //Get currently playing item
    const nowPlaying = client.player.mediaHandler.nowPlaying;

    //If we're playing a youtube video and the official embeds are enabled
    if(nowPlaying.type == 'yt' && localStorage.getItem('ytPlayerType') == "embed"){
        //Restart the video now that the embed api has loaded
        client.player.start({media: nowPlaying});
    }
}

const client = new channel();