import { AudioPlayer, AudioPlayerStatus } from "@discordjs/voice";
import { player } from "./main";
import { CacheType, ChatInputCommandInteraction } from "discord.js";
import { getAudioFile } from "./util/downloader";
import { playSong } from "./util/helpers";

const queue: Queue = {
    songList: [],
    current: null
}

export async function requestSong(
    interaction: ChatInputCommandInteraction<CacheType>,
    url: string) {

    const path = await getAudioFile(url)
    queue.songList.push({ path, url })
    updatePlayer()

}

export async function forceRequestSong(
    interaction: ChatInputCommandInteraction<CacheType>,
    url: string) {

    const path = await getAudioFile(url)
    const audio = { path, url }
    queue.songList.push(audio)
    queue.current = audio
    playSong(player, path);
}


export async function updatePlayer() {
    if (player.state.status === AudioPlayerStatus.Idle) {
        const nextSong = queue.songList.shift()
        if (!nextSong) {
            queue.current = null
            return
        };
        queue.current = nextSong;
        playSong(player, nextSong.path);
    }
}

export function skip_song(): AudioFile | null {
    if (player.state.status === AudioPlayerStatus.Playing) {
        const skipped = queue.current
        const nextSong = queue.songList.shift()
        if (!nextSong) {
            queue.current = null
            player.stop()
            return null
        };
        queue.current = nextSong;
        playSong(player, nextSong.path);
        return skipped
    }
    return null
}

export function pause_playback(player: AudioPlayer) {
    player.pause()
}

export function stop_playback(player: AudioPlayer) {
    player.stop()
}

export function resume_playback(player: AudioPlayer) {
    player.unpause()
}

export function getQueue(): Queue {
    return queue
}