/**
 * Copyright (c) 2025 Dominic Masters
 * 
 * This software is released under the MIT License.
 * https://opensource.org/licenses/MIT
 */

#pragma once
#include "asset.h"

#define ASSET_MANAGER_ASSET_COUNT_MAX 32

#if ASSET_TYPE == wad
#else
  #error "Unsupported ASSET_TYPE"
#endif

static const char_t ASSET_MANAGER_SEARCH_PATHS[][FILENAME_MAX] = {
  "%s/%s",
  "%s",
  "../%s",
  "../../%s",
  "data/%s",
  "../data/%s",
};

#define ASSET_MANAGER_SEARCH_PATHS_COUNT (\
  sizeof(ASSET_MANAGER_SEARCH_PATHS) / FILENAME_MAX\
)

typedef struct {
  zip_t *zip;
  asset_t assets[ASSET_MANAGER_ASSET_COUNT_MAX];
  char_t systemPath[FILENAME_MAX];
  uint8_t assetCount;
} assetmanager_t;

extern assetmanager_t ASSET_MANAGER;

/**
 * Initializes the asset system.
 */
errorret_t assetManagerInit(void);

/**
 * Update the asset manager. This should be called once per frame.
 */
void assetManagerUpdate(void);

/**
 * Get an asset by filename. This will return NULL if the asset does not exist.
 * This will not lock the asset, you must do that separately. If you do not
 * lock the asset there is no guarantee the asset pointer will remain valid.
 * 
 * @param filename The filename of the asset to get.
 * @param outAsset The output asset pointer.
 * @return An error code.
 */
errorret_t assetManagerGetAsset(const char_t *filename, asset_t **outAsset);

/**
 * Gets, locks and loads an asset. This is all blocking so only use if you 
 * really need to.
 * 
 * @param filename The filename of the asset to get.
 * @param outAsset The output asset pointer.
 * @param outRef The output asset reference pointer.
 * @return An error code if something goes wrong.
 */
errorret_t assetManagerLoadAsset(
  const char_t *filename,
  asset_t **outAsset,
  ref_t *outRef
);

/**
 * Disposes/cleans up the asset system.
 */
void assetManagerDispose(void);