#pragma once

#include "assets/kasset_types.h"
#include "defines.h"
#include "strings/kname.h"

typedef struct asset_manifest_asset {
	kname name;
	kasset_type type;
	// TODO: asset metadata

	// The full path to the asset relative to the runtime.
	// TODO: If loaded from binary, this might be null?
	const char *path;
	// The full path to the source asset relative to the runtime.
	const char *source_path;

	// The full path to the asset relative to the package.
	const char *local_path;
	// The full path to the source asset relative to the package.
	const char *local_source_path;
} asset_manifest_asset;

/**
 * @brief A reference to another package in an asset manifest.
 */
typedef struct asset_manifest_reference {
	kname name;
	const char *path;
} asset_manifest_reference;

typedef struct asset_manifest {
	kname name;
	// Path to .kpackage file. Null if loading from disk.
	const char *file_path;
	// Path containing the .kpackage file, without the filename itself.
	const char *path;

	// darray
	asset_manifest_asset *assets;

	// darray
	asset_manifest_reference *references;
} asset_manifest;

struct kpackage_internal;

typedef struct kpackage {
	kname name;
	b8 is_binary;
	const char *manifest_file_path;
	struct kpackage_internal *internal_data;
} kpackage;

typedef enum kpackage_result {
	KPACKAGE_RESULT_SUCCESS = 0,
	KPACKAGE_RESULT_ASSET_GET_FAILURE,
	KPACKAGE_RESULT_INTERNAL_FAILURE
} kpackage_result;

KAPI b8 kpackage_create_from_manifest (const char *manifest_file_path, const asset_manifest *manifest, kpackage *out_package);
KAPI b8 kpackage_create_from_binary (u64 size, void *bytes, kpackage *out_package);
KAPI void kpackage_destroy (kpackage *package);

// NOTE: array is dynamically allocated and must be freed by the caller.
KAPI kname *kpackage_asset_names_by_type (const kpackage *package, kasset_type type, u32 *out_count);

KAPI kpackage_result kpackage_asset_bytes_get (const kpackage *package, kname name, u64 *out_size, const void **out_data);
KAPI kpackage_result kpackage_asset_text_get (const kpackage *package, kname name, u64 *out_size, const char **out_text);

/**
 * Attempts to retrieve the path string for the given asset within the provided package.
 * NOTE: If found, returns a _copy_ of the string (dynamically allocated) which must be freed by the caller.
 *
 * @param package A constant pointer to the package to search.
 * @param name The name of the asset to search for.
 * @returns A copy of the path string, if found. Otherwise 0/null.
 */
KAPI const char *kpackage_path_for_asset (const kpackage *package, kname name);

/**
 * Attempts to retrieve the source path string for the given asset within the provided package.
 * NOTE: If found, returns a _copy_ of the string (dynamically allocated) which must be freed by the caller.
 *
 * @param package A constant pointer to the package to search.
 * @param name The name of the asset to search for.
 * @returns A copy of the source path string, if found. Otherwise 0/null.
 */
KAPI const char *kpackage_source_path_for_asset (const kpackage *package, kname name);

KAPI b8 kpackage_asset_bytes_write (kpackage *package, kname name, u64 size, const void *bytes);
KAPI b8 kpackage_asset_text_write (kpackage *package, kname name, u64 size, const char *text);

KAPI b8 kpackage_parse_manifest_file_content (const char *path, asset_manifest *out_manifest);
KAPI void kpackage_manifest_destroy (asset_manifest *manifest);

#if KOHI_DEBUG
KAPI b8 kpackage_add_asset (kpackage *package, const asset_manifest_asset *asset);
KAPI b8 kpackage_save (kpackage *package);
#endif