const streamController = require('./restream/StreamController');
const Channel = require('../models/Channel');
const storageService = require('./restream/StorageService');

class ChannelService {
    constructor() {

        const daddyHeaders = [
            { "key": "Origin", "value": "https://cookiewebplay.xyz" },
            { "key": "User-Agent", "value": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36" },
            { "key": "Referer", "value": "https://cookiewebplay.xyz/" }
        ];

        const streamedSuHeaders = [
            { "key": "Origin", "value": "https://embedme.top" },
            { "key": "User-Agent", "value": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132.0) Gecko/20100101 Firefox/132.0" },
            { "key": "Referer", "value": "https://embedme.top/" }
        ];

        this.channels = [
            //Some Test-channels to get started, remove this when using your own playlist
            //new Channel('Das Erste', "https://mcdn.daserste.de/daserste/de/master.m3u8", "https://upload.wikimedia.org/wikipedia/commons/thumb/5/56/Das_Erste-Logo_klein.svg/768px-Das_Erste-Logo_klein.svg.png", 'direct'),
            new Channel('DAZN 1 DE', "https://xyzdddd.mizhls.ru/lb/premium426/index.m3u8", "https://upload.wikimedia.org/wikipedia/commons/4/49/DAZN_1.svg", 'proxy', daddyHeaders),
            new Channel('beIN Sports 1', "https://xyzdddd.mizhls.ru/lb/premium61/index.m3u8", "https://www.thesportsdb.com/images/media/channel/logo/BeIn_Sports_1_Australia.png", 'proxy', daddyHeaders),
            new Channel('beIN Sports 2', "https://xyzdddd.mizhls.ru/lb/premium92/index.m3u8", "https://www.thesportsdb.com/images/media/channel/logo/BeIn_Sports_HD_2_France.png", 'proxy', daddyHeaders),
            new Channel('Sky Sport Football', "https://xyzdddd.mizhls.ru/lb/premium35/index.m3u8", "https://raw.githubusercontent.com/tv-logo/tv-logos/main/countries/united-kingdom/sky-sports-football-uk.png", 'proxy', daddyHeaders),
            new Channel('Sky Sports Premier League', "https://xyzdddd.mizhls.ru/lb/premium130/index.m3u8", "https://github.com/tv-logo/tv-logos/blob/main/countries/united-kingdom/sky-sports-premier-league-uk.png?raw=true", 'proxy', daddyHeaders),
            new Channel('SuperSport Premier League', 'https://xyzdddd.mizhls.ru/lb/premium414/index.m3u8', "https://github.com/tv-logo/tv-logos/blob/8d25ddd79ca2f9cd033b808c45cccd2b3da563ee/countries/south-africa/supersport-premier-league-za.png?raw=true", 'restream', daddyHeaders),
            //new Channel('TEST', 'https://rr.vipstreams.in/alpha/js/al-taawon-vs-al-qadisiya/1/playlist.m3u8', "https://upload.wikimedia.org/wikipedia/commons/thumb/5/56/Das_Erste-Logo_klein.svg/768px-Das_Erste-Logo_klein.svg.png", 'restream', streamedSuHeaders),
        ];
        this.currentChannel = this.channels[0];
    }

    getChannels() {
        return this.channels;
    }

    getChannelById(id) {
        return this.channels.find(channel => channel.id === id);
    }

    getFilteredChannels({ playlistName, group }) {
        let filtered = this.channels;
        if (playlistName) {
            filtered = filtered.filter(ch => ch.playlistName && ch.playlistName.toLowerCase() == playlistName.toLowerCase());
        }
        if (group) {
            filtered = filtered.filter(ch => ch.group && ch.group.toLowerCase() === group.toLowerCase());
        }
        return filtered;
    }

    addChannel({ name, url, avatar, mode, headersJson, group = null, playlist = null, playlistName = null }) {
        const existing = this.channels.find(channel => channel.url === url);

        if (existing) {
            throw new Error('Channel already exists');
        }

        const headers = JSON.parse(headersJson);
        const newChannel = new Channel(name, url, avatar, mode, headers, group, playlist, playlistName);
        this.channels.push(newChannel);

        return newChannel;
    }

    async setCurrentChannel(id) {
        const nextChannel = this.channels.find(channel => channel.id === id);
        if (!nextChannel) {
            throw new Error('Channel does not exist');
        }

        if (this.currentChannel !== nextChannel) {
            if (nextChannel.restream()) {
                streamController.stop(this.currentChannel);
                storageService.deleteChannelStorage(nextChannel.id);
                await streamController.start(nextChannel);
            } else {
                streamController.stop(this.currentChannel);
            }
            this.currentChannel = nextChannel;
        }
        return nextChannel;
    }

    getCurrentChannel() {
        return this.currentChannel;
    }

    getChannelById(id) {
        return this.channels.find(channel => channel.id === id);
    }

    async deleteChannel(id) {
        const channelIndex = this.channels.findIndex(channel => channel.id === id);
        if (channelIndex === -1) {
            throw new Error('Channel does not exist');
        }

        const [deletedChannel] = this.channels.splice(channelIndex, 1);

        if (this.currentChannel.id === id) {
            await this.setCurrentChannel(0);
        }


        return this.currentChannel;
    }

    async updateChannel(id, updatedAttributes) {
        console.log(id);
        const channelIndex = this.channels.findIndex(channel => channel.id === id);
        if (channelIndex === -1) {
            throw new Error('Channel does not exist');
        }

        const streamChanged = updatedAttributes.url != this.currentChannel.url ||
            JSON.stringify(updatedAttributes.headers) != JSON.stringify(this.currentChannel.headers) ||
            updatedAttributes.mode != this.currentChannel.mode;

        const channel = this.channels[channelIndex];
        Object.assign(channel, updatedAttributes);

        if (this.currentChannel.id == id) {
            if (streamChanged) {
                streamController.stop(channel);
                if (channel.restream()) {
                    await streamController.start(channel);
                }
            }
        }

        return channel;
    }
}

module.exports = new ChannelService();