#include "mpd_client.h"

#include <mpd/player.h>
#include <mpd/song.h>
#include <mpd/status.h>
#include <string.h>

#include "metadata.h"

struct mpd_connection *mpdConnect( int port ) {
    struct mpd_connection *ret = mpd_connection_new( "localhost", port, 1000 );
    if ( ret == NULL )
        return NULL;

    if ( mpd_connection_get_error( ret ) != MPD_ERROR_SUCCESS )
        return NULL;
    return ret;
}

void mpdDisconnect( struct mpd_connection *mpd_connection ) {
    if ( mpd_connection != NULL )
        mpd_connection_free( mpd_connection );
}

struct song_metadata mpdGetSong( struct mpd_connection *mpd_connection ) {
    struct song_metadata ret = { 0 };
    struct mpd_song *song = mpd_run_current_song( mpd_connection );
    if ( song == NULL )
        goto end;
    const char *copy = mpd_song_get_tag( song, MPD_TAG_TITLE, 0 );
    if ( copy == NULL )
        goto endfree;
    // TODO check return values
    ret.title = strdup( copy );
    copy = mpd_song_get_tag( song, MPD_TAG_ARTIST, 0 );
    if ( copy != NULL )
        ret.artist = strdup( copy );
    copy = mpd_song_get_tag( song, MPD_TAG_ALBUM, 0 );
    if ( copy != NULL )
        ret.album = strdup( copy );
    copy = mpd_song_get_tag( song, MPD_TAG_DATE, 0 );
    if ( copy != NULL )
        ret.year = strdup( copy );

    ret.file = strdup( mpd_song_get_uri( song ) );

    struct mpd_status *status = mpd_run_status( mpd_connection );
    if ( status == NULL )
        goto endfree;
    ret.duration = mpd_status_get_total_time( status );
    ret.position = mpd_status_get_elapsed_time( status );

    mpd_status_free( status );
endfree:
    mpd_song_free( song );
end:
    return ret;
}

void mpdPlayPause( struct mpd_connection *mpd_connection ) {
    mpd_send_toggle_pause( mpd_connection );
}

void mpdNext( struct mpd_connection *mpd_connection ) {
    mpd_send_next( mpd_connection );
}

void mpdPrev( struct mpd_connection *mpd_connection ) {
    mpd_send_previous( mpd_connection );
}

void mpdStop( struct mpd_connection *mpd_connection ) {
    mpd_send_stop( mpd_connection );
}

enum mpd_state mpdStatus( struct mpd_connection *mpd_connection ) {
    if( mpd_connection == NULL )
        return -1;
    struct mpd_status *status = mpd_run_status( mpd_connection );
    if ( status == NULL )
        return -1;
    enum mpd_state ret = mpd_status_get_state( status );
    mpd_status_free( status );
    return ret;
}

bool mpdRunning( struct mpd_connection *mpd_connection ) {
    enum mpd_state state = mpdStatus( mpd_connection );
    return state == MPD_STATE_PAUSE || state == MPD_STATE_PLAY;
}

bool mpdPlaying( struct mpd_connection *mpd_connection ) {
    enum mpd_state state = mpdStatus( mpd_connection );
    return state == MPD_STATE_PLAY;
}