#ifndef _MENU_PACK_LOAD_H_
#define _MENU_PACK_LOAD_H_

#include <stdint.h>
#include <stdbool.h>
#include <stddef.h>

typedef enum EMenuItemInfoType
{
    MENU_ITEM_NORMAL,
    MENU_ITEM_ALIAS,
    MENU_ITEM_SUB_MENU,
} EMenuItemInfoType;

struct TMenuDescriptionItem
{
    uint16_t menu_index       : 8;
    uint16_t next_menu_index  : 8;
    uint16_t prev_menu_index  : 8;
    uint16_t display_page     : 8;
    uint16_t max_menu_item    : 8;
    uint16_t action_index     : 8;
    uint16_t menu_name_str_offset;
    uint16_t description_str_off;
    uint16_t display_menu_index : 8;
    uint16_t rsv                : 8;
};

struct TMenuDescriptionInfo
{
    uint32_t item_count;
    struct TMenuDescriptionItem items[1];
};

typedef struct TMenuItemInfoTypeCommon  
{
    uint16_t type                 : 2; 
    uint16_t rsv                  : 14;
    uint16_t                      : 8;
    uint16_t action_index         : 8;
} TMenuItemInfoTypeCommon;

typedef struct TMenuItemInfoTypeAlias
{
    uint16_t type                 : 2; 
    uint16_t rsv                  : 14;
    uint16_t alias_index          : 8;
    uint16_t action_index         : 8;
} TMenuItemInfoTypeAlias;

typedef struct TMenuItemInfoTypeNormal
{
    uint32_t type                 : 2; 
    uint32_t scale_format_index   : 8;
    uint32_t limit_index          : 8;
    uint32_t unit_index           : 6;
    uint32_t action_index         : 8;
} TMenuItemInfoTypeNormal;

typedef struct TMenuItemInfoTypeSubMenu
{
    uint16_t type                 : 2; 
    uint16_t rsv                  : 14;
    uint16_t sub_menu_index       : 8;
    uint16_t action_index         : 8;
} TMenuItemInfoTypeSubMenu;

typedef enum EMenuProperty
{
    MENU_PROP_READ_ONLY = 0,
    MENU_PROP_USER,
    MENU_PROP_ENGINEER,
} EMenuProperty;

//每个菜单项12字节
struct TMenuItemInfo
{
    uint16_t comm_str_offset;
    uint16_t name_offset;
    uint16_t comm_group_index : 8;
    uint16_t menu_property    : 8;   //EMenuProperty
    uint16_t remap_addr;
    union {
        TMenuItemInfoTypeCommon  common;
        TMenuItemInfoTypeAlias   alias;
        TMenuItemInfoTypeNormal  normal;
        TMenuItemInfoTypeSubMenu sub_menu;
    } info;
};

struct TMenuPack2
{
    uint32_t item_count;
    struct TMenuItemInfo items[1];
};

struct TMenuPackItem
{
    uint16_t menu_start_index;
    uint16_t  menu_items;
};

struct TMenuPack
{
    uint16_t item_count;
    uint16_t top_menu_index;
    struct TMenuPackItem items[1];
};

struct TCommItem
{
    uint32_t reg_start;
    uint16_t reg_count;
    uint16_t cycle_time;
    uint16_t mqtt_menu_index;
    uint16_t rsv[1];
};

struct TCommPack
{
    uint32_t item_count;
    struct TCommItem items[1];
};

struct TValueLimitItem
{
    uint16_t min_string_off;
    uint16_t max_string_off;
};

struct TValueLimitTable
{
    uint32_t limit_count;
    struct TValueLimitItem items[1];
};

struct TAliasTable2Item
{
    int16_t  value;
    uint16_t alias_string_off;
};

struct TAliasPack2
{
    uint32_t table_count;
    struct TAliasTable2Item items[1];
};

struct TAliasTableItem
{
    int16_t  start_index;
    uint16_t alias_item_nums;
};

struct TAliasPack
{
    uint32_t table_count;
    struct TAliasTableItem items[1];
};

struct TUnitPack
{
    uint32_t unit_count;
    uint16_t uint_string_off[1];
};

struct TActionPack
{
    uint32_t action_count;
    uint16_t action_string_off[1];
};

struct TScaleFormatItem
{
    uint16_t scale_string_off;
    uint16_t format_string_off;
};

struct TScaleFormatPack
{
    uint32_t scale_format_count;
    struct TScaleFormatItem items[1];
};

struct TStringPack
{
    uint32_t table_string_size;
    uint8_t  table_string[1];
};

typedef struct 
{
    char     file_version[8];
    uint32_t header_size;
    uint32_t menu_pack_offset;
    uint32_t menu_pack2_offset;
    uint32_t menu_description_offset;
    uint32_t alias_pack_offset;
    uint32_t alias_pack2_offset;
    uint32_t scale_format_table_offset;
    uint32_t unit_table_offset;
    uint32_t limit_table_offset;
    uint32_t comm_table_offset;
    uint32_t action_table_offset;
    uint32_t string_table_offset;
    uint32_t rsv[3];
    uint32_t data_size;
    uint32_t data_crc;
    uint32_t header_crc;
} TMenuPackFileHead;

typedef struct 
{
    const TMenuPackFileHead *pstcPackHeader;
    struct TMenuPack    *pastcMenuPack;
    struct TMenuPack2   *pastMenuPack2;
    struct TMenuDescriptionInfo *pastcMenuDescriptionInfo;
    struct TAliasPack    *pastcAliasPack;
    struct TAliasPack2   *pastcAliasPack2;
    struct TUnitPack    *pastcUnitPack;
    struct TScaleFormatPack  *pastcFormatPack;
    struct TValueLimitTable *pastcLimitPack;
    struct TCommPack *pastcCommPack;
    struct TActionPack *pastcActionPack;
    struct TStringPack  *pastcStringPack;
} TMenuPackFileInfo;

extern TMenuPackFileInfo g_stcMenuPack;

uint32_t file_crc32(const uint8_t *data, size_t len);

bool App_LoadMenuPackInfoBuf(const uint8_t *pbuf, int buf_size);
bool App_LoadMenuPackInfo(const char *file_name);
void App_UpdateMenuPackPtr(const TMenuPackFileHead *pstcPackHeader);

#endif /* _MAIN_H_ */