import { jwtDecode, gql, backendURL, store } from '../App'

const audio = new Audio()

const actionTrackSet = (track, audio, playlist) =>
({
    type: 'SET_TRACK',
    track: track,
    playlist: playlist,
    duration: audio.duration,
    currentTime: audio.currentTime,
    volume: audio.volume
})

const actionTrackSetDuration = (time) => ({ type: 'SET_DURATION', duration: time })

const actionTrackSetCurrTime = (time) => ({ type: 'SET_CURRTIME', currentTime: time })

const actionTrackSetVolume = (value) => ({ type: 'SET_VOLUME', volume: value })
const actionTrackPlay = () => ({ type: 'PLAY_TRACK' })
const actionTrackPause = (currentTime) => ({ type: 'PAUSE_TRACK', currentTime: currentTime })

const actionPlaylistSet = (playlist) => ({type: 'SET_PLAYLIST', playlist: playlist})
const actionSetPlaylistIndex = (index) => ({type: 'SET_INDEX', playlistIndex: index})

export const setPlaylist = (playlist) => dispatch => dispatch(actionPlaylistSet(playlist))
export const setIndex = (index) => dispatch => dispatch(actionSetPlaylistIndex(index))

export const setTrack = (track, playlist) =>
    dispatch => {
        audio.src = backendURL + '/' + track.url
        dispatch(actionTrackSet(track, audio, playlist))
    }

export const switchTrack = (isForward, currentTrackIndex, playlist) =>
    dispatch => {
        let playlistLength = playlist.constructor.name ==='Array'? playlist.length - 1 : playlist.tracks.length - 1
        let tracks = playlist.constructor.name ==='Array'? playlist : playlist.tracks
        console.log('stuff', tracks, playlistLength)

        if (isForward ? currentTrackIndex < playlistLength : currentTrackIndex > 0) {
            dispatch(setTrack(tracks[currentTrackIndex + (isForward ? 1 : -1)], playlist))
        } else if (currentTrackIndex === (isForward ? playlistLength : 0)) {
            dispatch(setTrack(tracks[isForward ? 0 : playlistLength], playlist))
        }
        dispatch(playTrack())
    }

export const playTrack = () =>
    dispatch => {
        dispatch(actionTrackPlay())
        audio.play()
    }

export const pauseTrack = () =>
    dispatch => {
        dispatch(actionTrackPause(audio.currentTime))
        audio.pause()
    }

export const setTrackVolume = (volume) =>
    dispatch => {
        audio.volume = volume
        dispatch(actionTrackSetVolume(volume))
    }

export const setNewTrackCurrentTime = (time) =>
    (dispatch, getState) => {
        audio.pause()
        audio.currentTime = time
        getState().player.isPlaying? audio.play() : audio.pause()
        dispatch(actionTrackSetCurrTime(time))
    }

audio.onended = () => store.dispatch(switchTrack(true, store.getState().player.playlistIndex, store.getState().player.playlist))
audio.ondurationchange = (e) =>  store.dispatch(actionTrackSetDuration(e.target.duration))
audio.ontimeupdate = (e) => store.dispatch(actionTrackSetCurrTime(e.target.currentTime))










const actionPending = name => ({ type: 'PROMISE', status: 'PENDING', name })
const actionResolved = (name, payload) => ({ type: 'PROMISE', status: 'RESOLVED', name, payload })
const actionRejected = (name, error) => ({ type: 'PROMISE', status: 'REJECTED', name, error })
export const actionPromise = (name, promise) =>
    async dispatch => {
        dispatch(actionPending(name))
        try {
            let payload = await promise
            dispatch(actionResolved(name, payload))
            return payload
        }
        catch (error) {
            dispatch(actionRejected(name, error))
        }
    }

export const actionAuthLogin = token => ({ type: 'AUTH_LOGIN', token })
export const actionAuthLogout = () => ({ type: 'AUTH_LOGOUT' })
export const actionLogin = (login, password) =>
    actionPromise('login', gql(`
  query log($login:String!, $password:String!) {
      login(login: $login, password: $password)
    }`, { login, password }))

export const actionFullLogin = (login = 'tst', password = '123') =>
    async dispatch => {
        let token = await dispatch(actionLogin(login, password))
        if (token) {
            await dispatch(actionAuthLogin(token))
            await dispatch(actionGetUserData())
            dispatch(actionGetUserPlaylists())
            dispatch(actionGetUserTracks())
        }
    }

export const actionRegister = (login, password) =>
    actionPromise('registration', gql(`
        mutation register($login:String!, $password:String!) {
            createUser(login: $login, password: $password) {
                login, _id
            }
        }
        `, { login, password })
    )

export const actionFullRegister = (login = 'tst', password = '123') =>
    async dispatch => {
        await dispatch(actionRegister(login, password))
        await dispatch(actionFullLogin(login, password))
    }

export const actionGetUserData = () => {
    let _id = jwtDecode(localStorage.authToken).sub.id
    return (
        actionPromise('userData', gql(`
            query($userId: String!) {
                UserFindOne(query: $userId){
                    login, _id, avatar {_id, url, originalFileName}
                }
            }
        `, { userId: JSON.stringify([{ _id }]) }))
    )
}

export const actionGetUserPlaylists = () => {
    let _id = jwtDecode(localStorage.authToken).sub.id
    return (
        actionPromise('userPlaylists', gql(`
            query getPlaylistByOwnerId($ownerId:String!) {
                PlaylistFind(query: $ownerId) {
                    _id, name
                }
            }
        `, { ownerId: JSON.stringify([{ ___owner: _id }]) }))
    )
}

export const actionGetPlaylistById = (_id) =>
    actionPromise('playlistTracks', gql(`
        query playlistById($playlistId: String!) {
            PlaylistFind(query: $playlistId) {
                _id, 
                name,
                tracks {

                    _id, url, originalFileName,
                    id3{ title, artist, album },
                }
            }
        }
    `, { playlistId: JSON.stringify([{ _id }]) }))

export const actionGetUserTracks = () => {
    let _id = jwtDecode(localStorage.authToken).sub.id
    return (
        actionPromise('userTracks', gql(`
            query getUserTracks($ownerId: String!) {
                TrackFind(query: $ownerId) {
                    _id, originalFileName, url,
                    id3 { title, artist, album }
                }
            }
        `, { ownerId: JSON.stringify([{ ___owner: _id }]) }))
    )
}

export const actionAddPlaylist = playlistName =>
    async dispatch => {
        await dispatch(actionPromise('addPlaylist', gql(`
            mutation addPlaylist ($playlistName: String!){
                PlaylistUpsert(playlist: {name: $playlistName}) {
                    _id, name
                }
            }
        `, { playlistName: playlistName })))
        dispatch(actionGetUserPlaylists())
    }

export const actionLoadFile = (file, type) => {
    let fd = new FormData()
    console.log('TYPE', type)
    fd.append(type === 'upload' ? 'photo' : type, file)

    return (
        actionPromise('loadFile', fetch(backendURL + `/${type}`, {
            method: "POST",
            headers: localStorage.authToken ? { Authorization: 'Bearer ' + localStorage.authToken } : {},
            body: fd
        })
            .then(res => res.json())
        )
    )
}

export const actionUpdatePlaylist = (playlistId, updPlaylist) =>
    async dispatch => {
        await dispatch(actionPromise('trackToPlaylist', gql(`
            mutation($playlistId: ID, $newTracks: [TrackInput]) {
                PlaylistUpsert(playlist:{ _id: $playlistId, tracks: $newTracks}) {
                _id, name, tracks { _id, originalFileName, }
                }
            }
            `, { playlistId: playlistId, newTracks: updPlaylist }))
        )
        await dispatch(actionGetPlaylistById(playlistId))
    }


export const actionUploadUserTrack = (file, playlistId) =>
    async (dispatch, getState) => {
        await dispatch(actionLoadFile(file, 'track'))

        if (!playlistId) {
            dispatch(actionGetUserTracks())
        } else {
            console.log('UPLOADING TO PLAYLIS')
            let updPlaylist = []
            let oldPlaylist = getState().promise.playlistTracks.payload[0].tracks

            if (oldPlaylist) {
                //console.log('id pashet', oldPlaylist)
                oldPlaylist.forEach(track => updPlaylist.push({ _id: track._id }))
            }
            updPlaylist.unshift({ _id: getState().promise.loadFile.payload?._id })
            console.log('UPDATED PLST', updPlaylist)

            await dispatch(actionUpdatePlaylist(playlistId, updPlaylist))
        }
    }

export const actionUploadAvatar = (file) =>
    async (dispatch, getState) => {
        await dispatch(actionLoadFile(file, 'upload'))
        await dispatch(actionPromise('setAvatar', gql(`
        mutation {
          UserUpsert(user:{_id: "${jwtDecode(localStorage.authToken).sub.id}", avatar: {_id: "${getState().promise?.loadFile?.payload?._id}"}}){
            _id, login, avatar{
                _id, url
            }
          }
        }
      `)))
        dispatch(actionGetUserData())
    }