/*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 playlistManager{
    constructor(client, panelDocument, queuePanel){
        //Set client
        this.client = client;
        //Set panel document
        this.panelDocument = panelDocument;
        //Set parent queue panel
        this.queuePanel = queuePanel;

        //Define Listeners
        this.defineListeners();
    }

    defineListeners(){
        this.client.socket.on("chanPlaylists", this.renderChannelPlaylists.bind(this));
    }

    docSwitch(){
        //Grab menus
        this.channelPlaylistDiv = this.panelDocument.querySelector("#queue-channel-playlist-div");

        //Grab controls
        this.createPlaylistSpan = this.panelDocument.querySelector('#queue-add-playlist-span');
        this.channelPlaylistLabel = this.panelDocument.querySelector('#queue-channel-playlist-span');
        this.channelPlaylistCaret = this.panelDocument.querySelector('#queue-channel-playlist-toggle');

        //Force playlist re-render to fix controls
        this.client.socket.emit('getChannelPlaylists');

        //Setup Input
        this.setupInput();
    }

    setupInput(){
        this.createPlaylistSpan.addEventListener('click', (event)=>{new newPlaylistPopup(event, this.client, this.queuePanel.ownerDoc)})
        this.channelPlaylistLabel.addEventListener('click', this.toggleChannelPlaylists.bind(this));
    }

    /* queue control button functions */
    toggleChannelPlaylists(event){
        //If the div is hidden
        if(this.channelPlaylistDiv.style.display == 'none'){
            //Light up the button
            this.channelPlaylistLabel.classList.add('positive');
            //Flip the caret
            this.channelPlaylistCaret.classList.replace('bi-caret-right-fill', 'bi-caret-down-fill');
            //Show the div
            this.channelPlaylistDiv.style.display = '';
        }else{
            //Unlight the button
            this.channelPlaylistLabel.classList.remove('positive');
            //Flip the caret
            this.channelPlaylistCaret.classList.replace('bi-caret-down-fill', 'bi-caret-right-fill');
            //Hide the div
            this.channelPlaylistDiv.style.display = 'none';
        }
    }

    checkOpenPlaylists(){
        //If open map is a string, indicating we just renamed a playlist with it's media open
        if(typeof this.openMap == 'string'){
            //Create new map to hold status with the new name of the renamed playlist already added
            this.openMap = new Map([[this.openMap, true]]);
        }else{
            //Create new map to hold status
            this.openMap = new Map();
        }


        //For each container Div rendered
        for(let containerDiv of this.channelPlaylistDiv.querySelectorAll('.queue-playlist-media-container-div')){
            //Set whether or not it's visible in the map
            this.openMap.set(containerDiv.dataset['playlist'], (containerDiv.style.display != 'none'));
        }
    }

    renderChannelPlaylists(data){
        //Check for open playlists
        this.checkOpenPlaylists();

        //Clear channel playlist div
        this.channelPlaylistDiv.innerHTML = '';

        //For every playlist sent down from the server
        for(let playlistIndex in data){
            //Get playlist from data
            this.playlist = data[playlistIndex];

            //Create a new playlist div
            this.playlistDiv = document.createElement('div');
            //Set it's class
            this.playlistDiv.classList.add('queue-playlist-div');

            //Create span to hold playlist entry line contents
            this.playlistSpan = document.createElement('span');
            //Set classes
            this.playlistSpan.classList.add('queue-playlist-span');

            //If this isn't our first rodeo
            if(this.playlistIndex != 0){
                //make note
                this.playlistSpan.classList.add('not-first');
            }

            //Render out playlist entry contents
            this.renderLabels();
            this.renderControls();
            this.renderMedia();

            //Append entry items to playlist entry line
            this.playlistSpan.appendChild(this.playlistLabels);
            this.playlistSpan.appendChild(this.playlistControls);

            //Append entry line and contents to playlist div
            this.playlistDiv.appendChild(this.playlistSpan);
            this.playlistDiv.appendChild(this.mediaContainer);

            //Append current playlist div to the channel playlists div
            this.channelPlaylistDiv.appendChild(this.playlistDiv);
        }

    }

    //aux rendering functions
    renderLabels(){
        //Create playlist label span
        this.playlistLabels = document.createElement('span');
        //Set it's class
        this.playlistLabels.classList.add('queue-playlist-labels-span');

        //create playlist title span
        this.playlistTitleSpan = document.createElement('span');
        //Set class
        this.playlistTitleSpan.classList.add('queue-playlist-title-span', 'interactive');

        //Create playlist title caret
        this.playlistTitleCaret = document.createElement('i');
        //Set class
        this.playlistTitleCaret.classList.add('bi-caret-right-fill');

        //Create playlist title label
        this.playlistTitle = document.createElement('p');
        //Set it's class
        this.playlistTitle.classList.add('queue-playlist-title');
        //Unescape Sanatized Enteties and safely inject as plaintext
        this.playlistTitle.innerText = utils.unescapeEntities(this.playlist.name);

        //Construct playlist title span
        this.playlistTitleSpan.appendChild(this.playlistTitleCaret);
        this.playlistTitleSpan.appendChild(this.playlistTitle);

        //Create playlist count label
        this.playlistCount = document.createElement('p');
        //Set it's class
        this.playlistCount.classList.add('queue-playlist-count');
        //List video count
        this.playlistCount.innerText = `Count: ${this.playlist.media.length}`;

        //Append items to playlist labels span
        this.playlistLabels.appendChild(this.playlistTitleSpan);
        this.playlistLabels.appendChild(this.playlistCount);

        //Define input listeners
        this.playlistTitleSpan.addEventListener('click', this.toggleMedia.bind(this));
    }

    renderControls(){
        //Create playlist control span
        this.playlistControls = document.createElement('span');
        //Set it's class
        this.playlistControls.classList.add('queue-playlist-control-span');
        //Set dataset
        this.playlistControls.dataset['playlist'] = this.playlist.name;

        //Create queue all button
        this.playlistQueueRandomButton = document.createElement('button');
        //Set it's classes
        this.playlistQueueRandomButton.classList.add('queue-playlist-queue-random-button', 'queue-playlist-control');
        //Inject text content
        this.playlistQueueRandomButton.textContent = 'Random';
        //Set title
        this.playlistQueueRandomButton.title = 'Queue Random Item from Playlist';

        //Create queue all button
        this.playlistQueueAllButton = document.createElement('button');
        //Set it's classes
        this.playlistQueueAllButton.classList.add('queue-playlist-queue-all-button', 'queue-playlist-control', 'not-first');
        //Inject text content
        this.playlistQueueAllButton.textContent = 'All';
        //Set title
        this.playlistQueueAllButton.title = 'Queue Entire Playlist';

        //Create add from URL button
        this.playlistAddURLButton = document.createElement('button');
        //Set it's classes
        this.playlistAddURLButton.classList.add('queue-playlist-add-url-button', 'queue-playlist-control', 'positive-button', 'not-first');
        //Set Tile
        this.playlistAddURLButton.title = 'Add To Playlist From URL'

        //Create playlist icons (we're using two so we're putting them inside the button :P)
        this.playlistAddIcon = document.createElement('i');
        this.playlistLinkIcon = document.createElement('i');
        //set classes
        this.playlistAddIcon.classList.add('bi-plus-lg');
        this.playlistLinkIcon.classList.add('bi-link-45deg');

        //Append icons to URL button
        this.playlistAddURLButton.appendChild(this.playlistAddIcon);
        this.playlistAddURLButton.appendChild(this.playlistLinkIcon);

        //Create default titles button
        this.playlistDefaultTitlesButton = document.createElement('button');
        //Set classes
        this.playlistDefaultTitlesButton.classList.add('queue-playlist-add-url-button', 'queue-playlist-control', 'bi-tags-fill', 'positive-button', 'not-first');               
        //Set title
        this.playlistDefaultTitlesButton.title = 'Change Default Titles'
        //Set dataset
        this.playlistDefaultTitlesButton.dataset['titles'] = JSON.stringify(this.playlist.defaultTitles);

        //Create rename button
        this.playlistRenameButton = document.createElement('button');
        //Set it's classes
        this.playlistRenameButton.classList.add('queue-playlist-add-url-button', 'queue-playlist-control', 'bi-input-cursor-text', 'positive-button', 'not-first');
        //Set title
        this.playlistRenameButton.title = 'Rename Playlist'
        
        //Create delete button
        this.playlistDeleteButton = document.createElement('button');
        //Set it's classes
        this.playlistDeleteButton.classList.add('queue-playlist-delete-button', 'queue-playlist-control', 'danger-button', 'bi-trash-fill', 'not-first');
        //Set title
        this.playlistDeleteButton.title = 'Delete Playlist'

        //Append items to playlist control span
        this.playlistControls.appendChild(this.playlistQueueRandomButton);
        this.playlistControls.appendChild(this.playlistQueueAllButton);
        this.playlistControls.appendChild(this.playlistAddURLButton);
        this.playlistControls.appendChild(this.playlistDefaultTitlesButton);
        this.playlistControls.appendChild(this.playlistRenameButton);
        this.playlistControls.appendChild(this.playlistDeleteButton);

        //Define input event listeners
        this.playlistAddURLButton.addEventListener('click', this.addURL.bind(this));
        this.playlistDefaultTitlesButton.addEventListener('click', this.editDefaultTitles.bind(this));
        this.playlistRenameButton.addEventListener('click', this.renamePlaylist.bind(this));
        this.playlistQueueAllButton.addEventListener('click', this.queueAll.bind(this));
        this.playlistDeleteButton.addEventListener('click', this.deletePlaylist.bind(this));
    }

    renderMedia(){
        //Create media container div
        this.mediaContainer = document.createElement('div');
        //Set classes
        this.mediaContainer.classList.add('queue-playlist-media-container-div');

        //If the playlist wasn't set to open in the open map
        if(!this.openMap.get(this.playlist.name)){
            //Auto-hide media container
            this.mediaContainer.style.display = 'none';
        }

        //Set dataset
        this.mediaContainer.dataset['playlist'] = this.playlist.name;

        for(let mediaIndex in this.playlist.media){
            //Grab media object from playlist
            const media = this.playlist.media[mediaIndex];

            //Create media div
            const mediaDiv = document.createElement('div');
            //Set class
            mediaDiv.classList.add('queue-playlist-media-div');

            //If this isn't our first rodeo
            if(mediaIndex != 0){
                mediaDiv.classList.add('not-first');
            }

            //Create media title
            const mediaTitle = document.createElement('p');
            //Set class
            mediaTitle.classList.add('queue-playlist-media-title');
            //Inject text content
            mediaTitle.innerText = utils.unescapeEntities(media.title);

            const deleteMediaIcon = document.createElement('i');
            //set class
            deleteMediaIcon.classList.add('queue-playlist-control', 'queue-playlist-media-delete-icon', 'danger-text', 'bi-trash-fill');
            //Set title
            deleteMediaIcon.title = 'Delete media from playlist';
            //Set dataset
            //It's probably more effecient to set this at mediaContainer level, but I don't want to crawl multiple parents later on
            deleteMediaIcon.dataset['playlist'] = this.playlist.name;
            deleteMediaIcon.dataset['uuid'] = media.uuid;

            //Append items to media div
            mediaDiv.appendChild(mediaTitle);
            mediaDiv.appendChild(deleteMediaIcon);
            

            //Handle input event listeners
            deleteMediaIcon.addEventListener('click', this.deleteMedia.bind(this));
            
            //Append media div to media container
            this.mediaContainer.appendChild(mediaDiv);
        }

        //return media container
        this.mediaContainer;
    }

    //I'd rather make this a class function but it's probably cleaner to not have to parent crawl
    toggleMedia(event){
        //Grab playlist title caret
        const playlistTitleCaret = event.target.querySelector('i');
        //I hope my mother doesn't see this next line, god I hate dot crawling...
        const mediaContainer = event.target.parentNode.parentNode.nextElementSibling;

        //If the div is hidden
        if(mediaContainer.style.display == 'none'){
            //Light up the button
            event.target.classList.add('positive');
            //Flip the caret
            playlistTitleCaret.classList.replace('bi-caret-right-fill', 'bi-caret-down-fill');
            //Show the div
            mediaContainer.style.display = '';
        }else{
            //Unlight the button
            event.target.classList.remove('positive');
            //Flip the caret
            playlistTitleCaret.classList.replace('bi-caret-down-fill', 'bi-caret-right-fill');
            //Hide the div
            mediaContainer.style.display = 'none';
        }
    }

    addURL(event){
        new addURLPopup(
            event, 
            event.target.parentNode.dataset['playlist'],
            this.client,
            this.queuePanel.ownerDoc
        );
    }

    //playlist control functions
    editDefaultTitles(event){
        new defaultTitlesPopup(
            event,
            event.target.parentNode.dataset['playlist'],
            JSON.parse(event.target.dataset['titles']),
            this.client,
            this.queuePanel.ownerDoc
        );
    }

    renamePlaylist(event){
        new renamePopup(
            event,
            event.target.parentNode.dataset['playlist'],
            this.client,
            this.queuePanel.ownerDoc,
            handleOpenedMedia.bind(this)
        );

        function handleOpenedMedia(newName){
            //do an ugly dot crawl to get the media container div
            const mediaContainer = event.target.parentNode.parentNode.nextElementSibling;

            //If the media container is visible
            if(mediaContainer.style.display != 'none'){
                //Set openMap to new name indicating the new playlist has it's media opened
                this.openMap = newName;
            }
        }
    }

    queueAll(event){
        this.client.socket.emit('queueChannelPlaylist', {playlist: event.target.parentNode.dataset['playlist']});
    }

    deletePlaylist(event){
        this.client.socket.emit('deleteChannelPlaylist', {playlist: event.target.parentNode.dataset['playlist']});
    }

    deleteMedia(event){
        this.client.socket.emit('deleteChannelPlaylistMedia', {playlist: event.target.dataset['playlist'], uuid: event.target.dataset['uuid']});
    }

}

class newPlaylistPopup{
    constructor(event, client, doc){
        //Set Client
        this.client = client;

        //Create media popup and call async constructor when done
        //unfortunately we cant call constructors asyncronously, and we cant call back to this from super, so we can't extend this as it stands :(
        this.popup = new canopyUXUtils.popup('/newPlaylist', true, this.asyncConstructor.bind(this), doc, false);
    }

    asyncConstructor(){
        this.name = this.popup.contentDiv.querySelector('#queue-create-playlist-popup-name');
        this.defaultTitles = this.popup.contentDiv.querySelector('#queue-create-playlist-popup-default-titles');
        this.location = this.popup.contentDiv.querySelector('#queue-create-playlist-popup-location');
        this.saveButton = this.popup.contentDiv.querySelector('#queue-create-playlist-popup-save');

        this.setupInput();
    }

    setupInput(){
        //Setup input
        this.saveButton.addEventListener('click', this.createPlaylist.bind(this));
        this.popup.popupDiv.addEventListener('keydown', this.createPlaylist.bind(this));
    }

    createPlaylist(event){
        //If we clicked or hit enter
        if(event.key == null || (event.key == "Enter" && this.defaultTitles !== this.popup.doc.activeElement)){

            //If we're saving to the channel
            if(this.location.value == 'channel'){
                //Tell the server to create a new channel playlist
                this.client.socket.emit('createChannelPlaylist', {
                    playlist: this.name.value,
                    defaultTitles: this.defaultTitles.value.split('\n')
                })
            }

            //Close the popup
            this.popup.closePopup();
        }
    }
}

class addURLPopup{
    constructor(event, playlist, client, doc){
        //Set Client
        this.client = client;

        //Set playlist
        this.playlist = playlist

        //Create media popup and call async constructor when done
        //unfortunately we cant call constructors asyncronously, and we cant call back to this from super, so we can't extend this as it stands :(
        this.popup = new canopyUXUtils.popup('/addToPlaylist', true, this.asyncConstructor.bind(this), doc);
    }

    asyncConstructor(){
        this.urlPrompt = this.popup.contentDiv.querySelector('#playlist-add-media-popup-prompt');
        this.addButton = this.popup.contentDiv.querySelector('#playlist-add-media-popup-button');

        this.setupInput();
    }

    setupInput(){
        //Setup input
        this.addButton.addEventListener('click', this.addToPlaylist.bind(this));
        this.popup.popupDiv.addEventListener('keydown', this.addToPlaylist.bind(this));
    }

    addToPlaylist(event){
        //If we clicked or hit enter
        if(event.key == null || event.key == "Enter"){

            //Tell the server to add url to the playlist
            this.client.socket.emit('addToChannelPlaylist', {
                playlist: this.playlist,
                url: this.urlPrompt.value
            });

            //Close the popup
            this.popup.closePopup();
        }
    }
}

class defaultTitlesPopup{
    constructor(event, playlist, titles, client, doc){
        //Set Client
        this.client = client;

        //Set playlist
        this.playlist = playlist

        //Set title string
        this.titles = titles.join('\n');

        //Create media popup and call async constructor when done
        //unfortunately we cant call constructors asyncronously, and we cant call back to this from super, so we can't extend this as it stands :(
        this.popup = new canopyUXUtils.popup('/playlistDefaultTitles', true, this.asyncConstructor.bind(this), doc, false);
    }

    asyncConstructor(){
        this.titlePrompt = this.popup.contentDiv.querySelector('#playlist-default-titles-popup-prompt');
        this.titleButton = this.popup.contentDiv.querySelector('#playlist-default-media-popup-button');

        this.titlePrompt.textContent = utils.unescapeEntities(this.titles);
        this.setupInput();
    }

    setupInput(){
        //Setup input
        this.titleButton.addEventListener('click', this.changeDefaultTitles.bind(this));
        this.popup.popupDiv.addEventListener('keydown', this.changeDefaultTitles.bind(this));
    }

    changeDefaultTitles(event){
        //If we clicked or hit enter while the prompt wasn't active
        if(event.key == null || (event.key == "Enter" && this.titlePrompt !== this.popup.doc.activeElement)){

            //Tell the server to change the titles
            this.client.socket.emit('changeDefaultTitlesChannelPlaylist', {
                playlist: this.playlist,
                defaultTitles: this.titlePrompt.value.split('\n')
            });

            //Close the popup
            this.popup.closePopup();
        }
    }
}

class renamePopup{
    constructor(event, playlist, client, doc, cb){
        //Set Client
        this.client = client;

        //Set playlist
        this.playlist = playlist

        this.cb = cb;

        //Create media popup and call async constructor when done
        //unfortunately we cant call constructors asyncronously, and we cant call back to this from super, so we can't extend this as it stands :(
        this.popup = new canopyUXUtils.popup('/renamePlaylist', true, this.asyncConstructor.bind(this), doc);
    }

    asyncConstructor(){
        this.renamePrompt = this.popup.contentDiv.querySelector('#playlist-rename-popup-prompt');
        this.renameButton = this.popup.contentDiv.querySelector('#playlist-rename-popup-button');

        this.setupInput();
    }

    setupInput(){
        //Setup input
        this.renameButton.addEventListener('click', this.changeDefaultTitles.bind(this));
        this.popup.popupDiv.addEventListener('keydown', this.changeDefaultTitles.bind(this));
    }

    changeDefaultTitles(event){
        //If we clicked or hit enter while the prompt wasn't active
        if(event.key == null || event.key == "Enter"){

            //Tell the server to change the titles
            this.client.socket.emit('renameChannelPlaylist', {
                playlist: this.playlist,
                name: this.renamePrompt.value
            });

            //if CB is a function
            if(typeof this.cb == 'function'){
                //Hand it back the new name
                this.cb(this.renamePrompt.value);
            }

            //Close the popup
            this.popup.closePopup();
        }
    }
}