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

#pragma once
#include "assettype.h"

#if ASSET_TYPE == wad
  #if PSP
    #define ASSET_PBP_READ_PBP_FROM_HOST 0
    #define ASSET_PBP_SIGNATURE_SIZE 4
    #define ASSET_PBP_SIGNATURE "\0PBP"

    typedef struct {
      char_t signature[ASSET_PBP_SIGNATURE_SIZE];
      uint32_t version;
      uint32_t sfoOffset;
      uint32_t icon0Offset;
      uint32_t icon1Offset;
      uint32_t pic0Offset;
      uint32_t pic1Offset;
      uint32_t snd0Offset;
      uint32_t pspOffset;
      uint32_t psarOffset;
    } assetpbp_t;
  #endif
#else
  #error "Unsupported ASSET_TYPE"
#endif

#define ASSET_FILE "dusk.dsk"
#define ASSET_HEADER_SIZE 3

static const char_t *ASSET_SEARCH_PATHS[] = {
  "%s/%s",
  "%s",
  "../%s",
  "../../%s",
  "data/%s",
  "../data/%s",
  NULL
};

#pragma pack(push, 1)
typedef struct {
  char_t header[ASSET_HEADER_SIZE];
} assetheader_t;
#pragma pack(pop)

typedef struct {
  zip_t *zip;
  char_t systemPath[FILENAME_MAX];
  uint8_t assetCount;

  #if PSP
    FILE *pbpFile;
    assetpbp_t pbpHeader;
  #endif
} asset_t;

static asset_t ASSET;

/**
 * Initializes the asset system.
 */
void assetInit(void);

/**
 * Checks if an asset file exists.
 * 
 * @param filename The filename of the asset to check.
 * @return true if the asset file exists, false otherwise.
 */
bool_t assetFileExists(const char_t *filename);

/**
 * Loads an asset by its filename, the output type depends on the asset type.
 * 
 * @param filename The filename of the asset to retrieve.
 * @param output The output pointer to store the loaded asset data.
 * @return An error code if the asset could not be loaded.
 */
void assetLoad(const char_t *filename, void *output);

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