#ifndef D2CHAR_H
#define D2CHAR_H

#include <stdint.h>
#include "d2strings.h"

#define D2S_HEADER_LENGTH 765
#define D2S_SIGNATURE 0xAA55AA55
#define D2S_CHECKSUM_OFFSET 12
#define D2S_CHECKSUM_LENGTH 4
#define D2S_CHARNAME_LENGTH 16
#define D2S_HOTKEYS_LENGTH 64
#define D2S_CHAR_APPEARANCE_LENGTH 32
#define D2S_DIFFICULTY_LENGTH 3
#define D2S_QUESTS_LENGTH 298
#define D2S_WAYPOINTS_LENGTH 81
#define D2S_NPCDATA_LENGTH 51

#define D2S_CHARSTATUS_HARDCORE 0x04
#define D2S_CHARSTATUS_DIED 0x08
#define D2S_CHARSTATUS_EXPANSION 0x20
#define D2S_CHARSTATUS_LADDER 0x40

enum D2Version {
    VER_106 = 71,
    VER_107 = 87,
    VER_108XP = 87,
    VER_108 = 89,
    VER_109 = 92,
    VER_110 = 96
};

enum D2CharClass {
    D2S_CHARCLASS_AMAZON = 0x00,
    D2S_CHARCLASS_SORCERESS = 0x01,
    D2S_CHARCLASS_NECROMANCER = 0x02,
    D2S_CHARCLASS_PALADIN = 0x03,
    D2S_CHARCLASS_BARBARIAN = 0x04,
    D2S_CHARCLASS_DRUID = 0x05,
    D2S_CHARCLASS_ASSASSIN = 0x06
};

enum D2Acts {
    D2S_ACT1 = 0,
    D2S_ACT2 = 1,
    D2S_ACT3 = 2,
    D2S_ACT4 = 3,
    D2S_ACT5 = 4
};

typedef struct __attribute__((packed)){
    uint32_t signature;
    uint32_t versionID;
    uint32_t fileSize;
    uint32_t checksum;
    uint32_t activeWeapon; // TODO
    char name[D2S_CHARNAME_LENGTH];
    uint8_t charStatus;
    uint8_t charProgress;
    uint16_t unknown1; // TODO
    uint8_t charClass;
    uint16_t unknown2; // TODO
    uint8_t charLevel;
    uint32_t unknown3; // TODO
    uint32_t lastPlayed;
    uint32_t unknown4; // TODO
    uint8_t hotkeys[D2S_HOTKEYS_LENGTH];
    uint32_t leftAbility;
    uint32_t rightAbility;
    uint32_t leftAbilityAlt;
    uint32_t rightAbilityAlt;
    uint8_t charAppearance[D2S_CHAR_APPEARANCE_LENGTH];
    uint8_t difficulty[D2S_DIFFICULTY_LENGTH];
    uint32_t mapID;
    uint16_t unknown5;
    uint16_t mercenaryStatus;
    uint32_t mercenarySeed;
    uint16_t mercenaryNameID;
    uint16_t mercenaryType;
    uint32_t mercenaryExp;
    uint8_t unknown6[144];
    uint8_t questData[D2S_QUESTS_LENGTH];
    uint8_t waypointData[D2S_WAYPOINTS_LENGTH];
    uint8_t NPCIntroductions[D2S_NPCDATA_LENGTH]; // TODO
} D2CharHeader;

uint32_t calcChecksum(D2CharHeader* c, void* charData);
int checkChecksum(D2CharHeader* c, void* charData);
int isHardcore(D2CharHeader* c);
int hasDied(D2CharHeader* c);
int isExpansion(D2CharHeader* c);
int isLadder(D2CharHeader* c);

#endif