/*
 * Copyright 2014 (c) Anna Schumaker.
 */
#include <core/tags/library.h>


static struct database library_db;

static struct library *__library_alloc(gchar *path, bool enabled)
{
	struct library *library = g_malloc(sizeof(struct library));

	dbe_init(&library->li_dbe, library);
	library->li_size     = 0;
	library->li_enabled  = enabled;
	library->li_path     = path;
	library->li_playlist = NULL;

	return library;
}

static struct db_entry *library_alloc(const gchar *path)
{
	return &__library_alloc(g_strdup(path), true)->li_dbe;
}

static void library_free(struct db_entry *dbe)
{
	g_free(LIBRARY(dbe));
}

static gchar *library_key(struct db_entry *dbe)
{
	return LIBRARY(dbe)->li_path;
}

static struct db_entry *library_read(struct file *file)
{
	int enabled;
	gchar *path;

	file_readf(file, "%d %m[^\n]", &enabled, &path);
	return &__library_alloc(path, enabled)->li_dbe;
}

static void library_write(struct file *file, struct db_entry *dbe)
{
	file_writef(file, "%d %s", LIBRARY(dbe)->li_enabled,
				   LIBRARY(dbe)->li_path);
}


static const struct db_ops library_ops = {
	library_alloc,
	library_free,
	library_key,
	library_read,
	NULL,
	library_write,
};


void library_db_init()
{
	db_init(&library_db, "library.db", true, &library_ops);
	db_load_idle(&library_db);
}

void library_db_deinit()
{
	db_deinit(&library_db);
}

const struct database *library_db_get()
{
	return &library_db;
}

struct library *library_find(const gchar *path)
{
	return LIBRARY(db_find(&library_db, path));
}

struct library *library_lookup(const gchar *path)
{
	return LIBRARY(db_get(&library_db, path));
}

struct library *library_get(const unsigned int index)
{
	return LIBRARY(db_at(&library_db, index));
}

void library_remove(struct library *library)
{
	if (library)
		db_remove(&library_db, &library->li_dbe);
}

void library_set_enabled(struct library *library, bool enabled)
{
	library->li_enabled = enabled;
	db_save(&library_db);
}

gchar *library_file(struct library *library, const gchar *path)
{
	return g_strdup_printf("%s/%s", library->li_path, path);
}

#ifdef CONFIG_TESTING
const struct db_ops *test_library_ops() { return &library_ops; }
#endif /* CONFIG_TESTING */