// FAT32 driver internals shared by mount, directory, and file I/O code.

#pragma once

#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <string.h>
#include <ntlite/ddi/io_driver.h>
#include <ntlite/ddi/hal_api.h>
#include <kernel/io_file.h>
#include <kernel/mm_virt.h>
#include <kernel/ke_debug.h>
#include <kernel/ke_irp.h>
#include <kernel/ke_semaphore.h>
#include <kernel/ke_thread.h>
#include <kernel/ke_sched.h>
#include <kernel/ke_time.h>
#include <kernel/ke_mutex.h>
#include <kernel/ke_irql.h>

typedef struct FAT32_VOL_S FAT32_VOL;

KSTATUS Fat32Open(IO_FILESYSTEM *fs, SYS_STRING_VIEW path, void **fileCtx);
void Fat32Close(IO_FILESYSTEM *fs, void *fileCtx);
KSTATUS Fat32Read(IO_FILESYSTEM *fs, void *fileCtx, uint64_t offset, void *buf, size_t size, size_t *bytesRead);
KSTATUS Fat32Write(IO_FILESYSTEM *fs, void *fileCtx, uint64_t offset, const void *buf, size_t size, size_t *bytesWritten);
KSTATUS Fat32ReadAsync(IO_FILESYSTEM *fs, void *fileCtx, uint64_t offset, void *buf, size_t size, IO_FS_ASYNC_COMPLETE complete, void *completeContext);
KSTATUS Fat32WriteAsync(IO_FILESYSTEM *fs, void *fileCtx, uint64_t offset, const void *buf, size_t size, IO_FS_ASYNC_COMPLETE complete, void *completeContext);
KSTATUS Fat32Create(IO_FILESYSTEM *fs, SYS_STRING_VIEW path, void **fileCtx);
KSTATUS Fat32Delete(IO_FILESYSTEM *fs, SYS_STRING_VIEW path);
KSTATUS Fat32Truncate(IO_FILESYSTEM *fs, void *fileCtx, uint64_t newSize, uint32_t fileFlags);
uint64_t Fat32GetSize(IO_FILESYSTEM *fs, void *fileCtx);
KSTATUS Fat32QueryIdentity(IO_FILESYSTEM *fs, void *fileCtx, IO_FILE_IDENTITY *out);
KSTATUS Fat32OpenDir(IO_FILESYSTEM *fs, SYS_STRING_VIEW dirPath, void **dirCtx);
KSTATUS Fat32ReadDir(IO_FILESYSTEM *fs, void *dirCtx, KDIR_ENTRY *out);
void Fat32CloseDir(IO_FILESYSTEM *fs, void *dirCtx);
void Fat32QueryStats(IO_FILESYSTEM *fs, IO_FILESYSTEM_STATS *out);

void Fat32InitVtable(IO_FILESYSTEM* fs, FAT32_VOL* vol);