#ifndef WIIDISC_H
#define WIIDISC_H
#include <stdio.h>
#include "libwbfs_os.h" // this file is provided by the project wanting to compile libwbfs and wiidisc

#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */

	// callback definition. Return 1 on fatal error (callback is supposed to make retries until no hopes..)
	// offset points 32bit words, count counts bytes
	typedef s32 (*read_wiidisc_callback_t)(void *fp, u32 offset, u32 count, void *iobuf);

	typedef enum
	{
		UPDATE_PARTITION_TYPE = 0,
		GAME_PARTITION_TYPE,
		OTHER_PARTITION_TYPE,
		// value in between selects partition types of that value
		ALL_PARTITIONS = 0xffffffff - 3,
		REMOVE_UPDATE_PARTITION, // keeps game + channel installers
		ONLY_GAME_PARTITION,
	} partition_selector_t;

	typedef struct wiidisc_s
	{
		read_wiidisc_callback_t read;
		void *fp;
		u8 *sector_usage_table;

		// everything points 32bit words.
		u32 disc_raw_offset;
		u32 partition_raw_offset;
		u32 partition_data_offset;
		u32 partition_data_size;
		u32 partition_block;
		
		u8 *tmp_buffer;
		u8 *tmp_buffer2;
		u8 disc_key[16];
		int dont_decrypt;

		partition_selector_t part_sel;

		const char *extract_pathname;
		u8 *extracted_buffer;
		u32 extracted_size;
		void *user_data;
	} wiidisc_t;

	int wd_get_last_error(void);

	wiidisc_t *wd_open_disc(read_wiidisc_callback_t read, void *fp);
	void wd_close_disc(wiidisc_t *);
	// returns a buffer allocated with wbfs_ioalloc() or NULL if not found of alloc error
	u8 * wd_extract_file(wiidisc_t *d, u32 *size, partition_selector_t partition_type, const char *pathname);
	void wd_build_disc_usage(wiidisc_t *d, partition_selector_t selector, u8 *usage_table);

	// effectively remove not copied partition from the partition table.
	void wd_fix_partition_table(partition_selector_t selector, u8 *partition_table);

	// needed for wad decryption
	void decrypt_title_key(u8 *tik, u8 *title_key);
#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif