/*
 * Copyright 2016 (c) Anna Schumaker.
 */
#include <core/idle.h>
#include <core/playlists/artist.h>

static struct queue_ops *artist_ops = NULL;


static struct playlist *__artist_pl_alloc(gchar *name)
{
	struct playlist *playlist = g_malloc(sizeof(struct playlist));

	playlist->pl_name = name;
	playlist->pl_type = PL_ARTIST;
	queue_init(&playlist->pl_queue, Q_ENABLED | Q_REPEAT, artist_ops, playlist);

	return playlist;
}

static void __artist_pl_free(struct playlist *playlist)
{
	if (playlist) {
		queue_deinit(&playlist->pl_queue);
		g_free(playlist);
	}
}

static bool __artist_pl_load(void *data)
{
	struct playlist *playlist = (struct playlist *)data;
	struct artist   *artist   = artist_lookup(playlist->pl_name);
	struct db_entry *dbe, *next;

	queue_set_flag(&playlist->pl_queue, Q_ADD_FRONT);
	db_for_each(dbe, next, track_db_get()) {
		if (TRACK(dbe)->tr_artist == artist)
			queue_add(&playlist->pl_queue, TRACK(dbe));
	}
	queue_unset_flag(&playlist->pl_queue, Q_ADD_FRONT);

	return true;
}


static struct queue *pl_artist_get_queue(const gchar *name)
{
	struct artist   *artist   = artist_lookup(name);
	struct playlist *playlist = artist ? artist->ar_playlist : NULL;
	return playlist ? &playlist->pl_queue : NULL;
}

static bool pl_artist_new_delete(const gchar *name)
{
	return false;
}

static bool pl_artist_add_rm(const gchar *name, struct track *track)
{
	return false;
}

static void pl_artist_update(const gchar *name)
{
}

static void pl_artist_set_flag(const gchar *name, enum queue_flags flag,
			       bool enabled)
{
	struct queue *queue = pl_artist_get_queue(name);
	(enabled ? queue_set_flag : queue_unset_flag)(queue, flag);
}

static void pl_artist_sort(const gchar *name, enum compare_t sort, bool reset)
{
	struct queue *queue = pl_artist_get_queue(name);
	queue_sort(queue, sort, reset);
}


struct playlist_type pl_artist = {
	.pl_get_queue    = pl_artist_get_queue,
	.pl_new          = pl_artist_new_delete,
	.pl_delete       = pl_artist_new_delete,
	.pl_add_track    = pl_artist_add_rm,
	.pl_remove_track = pl_artist_add_rm,
	.pl_update       = pl_artist_update,
	.pl_set_flag     = pl_artist_set_flag,
	.pl_sort         = pl_artist_sort,
};


static bool __artist_pl_init(void *data)
{
	struct db_entry *dbe, *next;
	struct playlist *playlist;

	db_for_each(dbe, next, artist_db_get()) {
		playlist = __artist_pl_alloc(ARTIST(dbe)->ar_name);
		ARTIST(dbe)->ar_playlist = playlist;

		idle_schedule(IDLE_SYNC, __artist_pl_load, playlist);
	}

	return true;
}

void pl_artist_init(struct queue_ops *ops)
{
	artist_ops = ops;
	idle_schedule(IDLE_SYNC, __artist_pl_init, NULL);
}

void pl_artist_deinit()
{
	struct db_entry *dbe, *next;
	struct playlist *playlist;

	db_for_each(dbe, next, artist_db_get()) {
		playlist = ARTIST(dbe)->ar_playlist;
		ARTIST(dbe)->ar_playlist = NULL;

		__artist_pl_free(playlist);
	}
}