#include "luat_base.h"
#include "luat_msgbus.h"
#include "luat_fs.h"
#include "luat_timer.h"
#include <stdlib.h>

#ifdef LUAT_USE_LVGL
#include "lvgl.h"
void luat_lv_fs_init(void);
void lv_bmp_init(void);
void lv_png_init(void);
void lv_split_jpeg_init(void);
#endif

LUAMOD_API int luaopen_win32( lua_State *L );
int luaopen_lfs(lua_State * L);
int luaopen_rs232_core(lua_State * L);

static const luaL_Reg loadedlibs[] = {
  {"_G", luaopen_base}, // _G
  {LUA_LOADLIBNAME, luaopen_package}, // require
  {LUA_COLIBNAME, luaopen_coroutine}, // coroutine协程库
  {LUA_TABLIBNAME, luaopen_table},    // table库,操作table类型的数据结构
  {LUA_IOLIBNAME, luaopen_io},        // io库,操作文件
  {LUA_OSLIBNAME, luaopen_os},        // os库,已精简
  {LUA_STRLIBNAME, luaopen_string},   // string库,字符串操作
  {LUA_MATHLIBNAME, luaopen_math},    // math 数值计算
  {LUA_UTF8LIBNAME, luaopen_utf8},
  {LUA_DBLIBNAME, luaopen_debug},     // debug库,已精简
#if defined(LUA_COMPAT_BITLIB)
  {LUA_BITLIBNAME, luaopen_bit32},    // 不太可能启用
#endif
  {"rtos", luaopen_rtos},             // rtos底层库, 核心功能是队列和定时器
  {"log", luaopen_log},               // 日志库
  {"timer", luaopen_timer},           // 延时库
  {"pack", luaopen_pack},             // pack.pack/pack.unpack
  {"json", luaopen_cjson},             // json
  {"win32", luaopen_win32},            // windows 32 tools
  {"zbuff", luaopen_zbuff},            // 
//   {"mqttcore", luaopen_mqttcore},      // 
//   {"libcoap", luaopen_libcoap},        // 
  {"crypto", luaopen_crypto},
  {"fatfs", luaopen_fatfs},
  {"sfd",   luaopen_sfd},
  {"lfs2",   luaopen_lfs2},
  {"gpio",   luaopen_gpio},
#ifdef LUAT_USE_LUF
  {"luf",    luaopen_luf},
#endif
#ifdef LUAT_USE_LVGL
  {"lvgl",   luaopen_lvgl},
#endif
  {NULL, NULL}
};

// 按不同的rtconfig加载不同的库函数
void luat_openlibs(lua_State *L) {
    // 初始化队列服务
    luat_msgbus_init();
    //print_list_mem("done>luat_msgbus_init");
    // 加载系统库
    const luaL_Reg *lib;
    /* "require" functions from 'loadedlibs' and set results to global table */
    for (lib = loadedlibs; lib->func; lib++) {
        luaL_requiref(L, lib->name, lib->func, 1);
        lua_pop(L, 1);  /* remove lib */
        //extern void print_list_mem(const char* name);
        //print_list_mem(lib->name);
    }
}

void luat_os_reboot(int code) {
    exit(code);
}

const char* luat_os_bsp(void) {
    #ifdef LUA_USE_WINDOWS
    return "win32";
    #else
    return "posix";
    #endif
}

extern const struct luat_vfs_filesystem vfs_fs_posix;
extern const struct luat_vfs_filesystem vfs_fs_luadb;

#ifdef LUAT_USE_VFS_INLINE_LIB
extern const char luadb_inline_sys[];
#endif

int luat_fs_init(void) {
	#ifdef LUAT_USE_FS_VFS
	// vfs进行必要的初始化
	luat_vfs_init(NULL);
	// 注册vfs for posix 实现
	luat_vfs_reg(&vfs_fs_posix);
	luat_vfs_reg(&vfs_fs_luadb);

	luat_fs_conf_t conf = {
		.busname = "",
		.type = "posix",
		.filesystem = "posix",
		.mount_point = "", // window环境下, 需要支持任意路径的读取,不能强制要求必须是/
	};
	luat_fs_mount(&conf);
	#ifdef LUAT_USE_VFS_INLINE_LIB
	luat_fs_conf_t conf2 = {
		.busname = (char*)luadb_inline_sys,
		.type = "luadb",
		.filesystem = "luadb",
		.mount_point = "/luadb/",
	};
	luat_fs_mount(&conf2);
	#endif
	#endif

	#ifdef LUAT_USE_LVGL
	luat_lv_fs_init();
	lv_bmp_init();
	lv_png_init();
	lv_split_jpeg_init();
	#endif
	return 0;
}

void vConfigureTimerForRunTimeStats( void ) {}

/** 设备进入待机模式 */
void luat_os_standy(int timeout) {
    return; // nop
}

void luat_ota_reboot(int timeout_ms) {
  if (timeout_ms > 0)
    luat_timer_mdelay(timeout_ms);
  exit(0);
}

#include <unistd.h>

void luat_timer_us_delay(size_t us) {
    if (us)
        usleep(us);
    return;
}

//--------------------------------------------------------------------------------
// for freertos
#include "FreeRTOS.h"
#include "task.h"

/* When configSUPPORT_STATIC_ALLOCATION is set to 1 the application writer can
use a callback function to optionally provide the memory required by the idle
and timer tasks.  This is the stack that will be used by the timer task.  It is
declared here, as a global, so it can be checked by a test that is implemented
in a different file. */
StackType_t uxTimerTaskStack[ configTIMER_TASK_STACK_DEPTH ];

/* Notes if the trace is running or not. */
static BaseType_t xTraceRunning = pdTRUE;

void vApplicationIdleHook( void )
{
#ifdef LUA_USE_WINDOWS
    Sleep(1);
#else
    usleep(1000);
#endif
}

void vAssertCalled( unsigned long ulLine, const char * const pcFileName ) {
  printf( "ASSERT! Line %d, file %s\r\n", ulLine, pcFileName );
  exit(255);
}

void vApplicationDaemonTaskStartupHook( void )
{
	/* This function will be called once only, when the daemon task starts to
	execute	(sometimes called the timer task).  This is useful if the
	application includes initialisation code that would benefit from executing
	after the scheduler has been started. */
}
void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
{
	( void ) pcTaskName;
	( void ) pxTask;

	/* Run time stack overflow checking is performed if
	configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2.  This hook
	function is called if a stack overflow is detected.  This function is
	provided as an example only as stack overflow checking does not function
	when running the FreeRTOS Windows port. */
	vAssertCalled( __LINE__, __FILE__ );
}

/* configUSE_STATIC_ALLOCATION is set to 1, so the application must provide an
implementation of vApplicationGetIdleTaskMemory() to provide the memory that is
used by the Idle task. */
void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer, StackType_t **ppxIdleTaskStackBuffer, uint32_t *pulIdleTaskStackSize )
{
/* If the buffers to be provided to the Idle task are declared inside this
function then they must be declared static - otherwise they will be allocated on
the stack and so not exists after this function exits. */
static StaticTask_t xIdleTaskTCB;
static StackType_t uxIdleTaskStack[ configMINIMAL_STACK_SIZE ];

	/* Pass out a pointer to the StaticTask_t structure in which the Idle task's
	state will be stored. */
	*ppxIdleTaskTCBBuffer = &xIdleTaskTCB;

	/* Pass out the array that will be used as the Idle task's stack. */
	*ppxIdleTaskStackBuffer = uxIdleTaskStack;

	/* Pass out the size of the array pointed to by *ppxIdleTaskStackBuffer.
	Note that, as the array is necessarily of type StackType_t,
	configMINIMAL_STACK_SIZE is specified in words, not bytes. */
	*pulIdleTaskStackSize = configMINIMAL_STACK_SIZE;
}
/*-----------------------------------------------------------*/

/* configUSE_STATIC_ALLOCATION and configUSE_TIMERS are both set to 1, so the
application must provide an implementation of vApplicationGetTimerTaskMemory()
to provide the memory that is used by the Timer service task. */
void vApplicationGetTimerTaskMemory( StaticTask_t **ppxTimerTaskTCBBuffer, StackType_t **ppxTimerTaskStackBuffer, uint32_t *pulTimerTaskStackSize )
{
/* If the buffers to be provided to the Timer task are declared inside this
function then they must be declared static - otherwise they will be allocated on
the stack and so not exists after this function exits. */
static StaticTask_t xTimerTaskTCB;

	/* Pass out a pointer to the StaticTask_t structure in which the Timer
	task's state will be stored. */
	*ppxTimerTaskTCBBuffer = &xTimerTaskTCB;

	/* Pass out the array that will be used as the Timer task's stack. */
	*ppxTimerTaskStackBuffer = uxTimerTaskStack;

	/* Pass out the size of the array pointed to by *ppxTimerTaskStackBuffer.
	Note that, as the array is necessarily of type StackType_t,
	configMINIMAL_STACK_SIZE is specified in words, not bytes. */
	*pulTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;
}


/*-----------------------------------------------------------*/

void vApplicationMallocFailedHook( void )
{
	/* vApplicationMallocFailedHook() will only be called if
	configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h.  It is a hook
	function that will get called if a call to pvPortMalloc() fails.
	pvPortMalloc() is called internally by the kernel whenever a task, queue,
	timer or semaphore is created.  It is also called by various parts of the
	demo application.  If heap_1.c, heap_2.c or heap_4.c is being used, then the
	size of the	heap available to pvPortMalloc() is defined by
	configTOTAL_HEAP_SIZE in FreeRTOSConfig.h, and the xPortGetFreeHeapSize()
	API function can be used to query the size of free heap space that remains
	(although it does not provide information on how the remaining heap might be
	fragmented).  See http://www.freertos.org/a00111.html for more
	information. */
	vAssertCalled( __LINE__, __FILE__ );
}
/*-----------------------------------------------------------*/


void vApplicationTickHook( void ) {
	#ifdef LUAT_USE_LVGL
	lv_tick_inc(1);
	#endif
}