#include "global.h"
#include "memory.h"
#include "menu.h"
#include "gUnknown_203B46C.h"
#include "text.h"

struct unkStruct_203B25C
{
    // size: 0x11C
    u32 state;
    u32 chosenHintIndex;
    struct UnkSaveStruct1 unk8;
    u32 unk18;
    const char *unk1C;
    u8 fill20[0x6C - 0x20];
    struct MenuItem menuItems[8];
    u16 unkAC[8];
    struct UnkTextStruct2 unkBC[4];
};


extern void sub_801DD6C(u32);

extern void HandleOthersMenu();
extern void sub_801E088();
extern void sub_801E0E0();
extern void sub_801E0FC();
extern void HandleChangeSettingsMenu();
extern void sub_801DD84();
extern void sub_801DED0();
extern void sub_8012D60(const char **, struct MenuItem *, u32, u16 *, u32, u32);
extern u32 sub_801E198(struct UnkSaveStruct1 *);
extern void sub_8014248(const char *, u32, u32, struct MenuItem *, u32, u32, u32, u32, u32);
extern void CreateHintDisplayScreen(u32);
extern void sub_801E3F0(u32);
extern void CreateHintSelectionScreen(u32);
extern void CreateChangeSettingsConfirmMenu(void);
extern u8 sub_8012FD8(u32 *);
extern void sub_8013114(u32 *, u32 *);
extern u32 sub_801E474(u32);
extern u32 GetChosenHintIndex(void);
extern void sub_801E54C(void);
extern u32 HandleHintDisplayScreenInput(void);
extern void DestroyHintDisplayScreen(void);
extern u32 sub_801E218(void);
extern bool8 GameOptionsNotChange(struct UnkSaveStruct1 *);
extern void sub_801E2C4(void);
extern s32 sub_80144A4(s32 *);
extern void sub_8094C14(void);
extern void sub_8099690(u32);
extern void sub_8012CAC(struct UnkTextStruct2 *, struct MenuItem *);

extern struct UnkSaveStruct1 *gUnknown_203B46C;
extern struct unkStruct_203B25C *gUnknown_203B25C;
extern const struct UnkTextStruct2 gUnknown_80DBFCC;
extern const struct UnkTextStruct2 gUnknown_80DBFB0;

extern const char gOthers_MenuOption[];
extern const char gUnknown_80DBFEC[];
extern const char gOthers_GameOptions[];
extern const char gOthers_Hints[];
extern const char *gUnknown_80D4920[];
extern const char *gUnknown_80D4928[];


enum 
{
    MENU_OPTION_DEFAULT = 1,
    MENU_OPTION_HINTS,
    MENU_OPTION_GAMEOPTIONS,
    MENU_OPTION_YES,
    MENU_OPTION_NO
};

u32 sub_801DCC4(void)
{
    gUnknown_203B25C = MemoryAlloc(sizeof(struct unkStruct_203B25C), 8);
    sub_801DD6C(0);
    return 1;
}

u32 sub_801DCE8(void)
{
    switch(gUnknown_203B25C->state)
    {
        case 2:
            return 3;
        case 0:
        case 1:
            HandleOthersMenu();
            break;
        case 3:
        case 4:
            sub_801E088();
            break;
        case 5:
            sub_801E0E0();
            break;
        case 6:
            sub_801E0FC();
            break;
        case 7:
            HandleChangeSettingsMenu();
            break;
        default:
            break;
    }
    return 0;
}

void sub_801DD50(void)
{
    if(gUnknown_203B25C != NULL)
    {
        MemoryFree(gUnknown_203B25C);
        gUnknown_203B25C = NULL;
    }
}

void sub_801DD6C(u32 newState)
{
    gUnknown_203B25C->state = newState;
    sub_801DD84();
    sub_801DED0();
}

#ifdef NONMATCHING
void sub_801DD84(void)
{
    s32 iVar3;
    sub_8006518(gUnknown_203B25C->unkBC);
    switch(gUnknown_203B25C->state)
    {
        case 0:
            CreateOthersMenu();
            // TODO probably could be cleaned up to actually match
            iVar3 = 0;
            if (gUnknown_203B25C->unkAC[iVar3] == 0) {
                gUnknown_203B25C->unk18 = gUnknown_203B25C->menuItems[iVar3].menuAction;
            }
            else {
                do {
                    iVar3++;
                    if(iVar3 > 7)
                        break;
                    if(gUnknown_203B25C->unkAC[iVar3] == 0){
                        gUnknown_203B25C->unk18 = gUnknown_203B25C->menuItems[iVar3].menuAction;
                        break;
                    }
                } while (iVar3 < 8);
            }
            for(iVar3 = 0; iVar3 < 4; iVar3++)
            {
                gUnknown_203B25C->unkBC[iVar3] = gUnknown_80DBFCC;
            }
            gUnknown_203B25C->unkBC[0] = gUnknown_80DBFB0;
            sub_8012CAC(&gUnknown_203B25C->unkBC[0], gUnknown_203B25C->menuItems);
            gUnknown_203B25C->unkBC[0].unk0c = 0xA;
            break;
        case 1:
            CreateOthersMenu();
            for(iVar3 = 0; iVar3 < 4; iVar3++)
            {
                gUnknown_203B25C->unkBC[iVar3] = gUnknown_80DBFB0;
            }
            gUnknown_203B25C->unkBC[0] = gUnknown_80DBFCC;
            sub_8012CAC(&gUnknown_203B25C->unkBC[0], gUnknown_203B25C->menuItems);
            gUnknown_203B25C->unkBC[0].unk0c = 0xA;
            break;
        default:
            for(iVar3 = 0; iVar3 < 4; iVar3++)
            {
                gUnknown_203B25C->unkBC[iVar3] = gUnknown_80DBFB0;
            }
            break;
    }
    ResetUnusedInputStruct();
    sub_800641C(gUnknown_203B25C->unkBC, 1, 1);
}
#else
NAKED
void sub_801DD84(void)
{
	asm_unified("\tpush {r4-r7,lr}\n"
	"\tmov r7, r9\n"
	"\tmov r6, r8\n"
	"\tpush {r6,r7}\n"
	"\tldr r4, _0801DDAC\n"
	"\tldr r0, [r4]\n"
	"\tadds r0, 0xBC\n"
	"\tbl sub_8006518\n"
	"\tldr r0, [r4]\n"
	"\tldr r0, [r0]\n"
	"\tcmp r0, 0\n"
	"\tbeq _0801DDB4\n"
	"\tcmp r0, 0x1\n"
	"\tbeq _0801DE38\n"
	"\tmovs r3, 0\n"
	"\tadds r7, r4, 0\n"
	"\tldr r2, _0801DDB0\n"
	"\tb _0801DE90\n"
	"\t.align 2, 0\n"
"_0801DDAC: .4byte gUnknown_203B25C\n"
"_0801DDB0: .4byte gUnknown_80DBFB0\n"
"_0801DDB4:\n"
	"\tbl CreateOthersMenu\n"
	"\tmovs r3, 0\n"
	"\tldr r1, [r4]\n"
	"\tadds r0, r1, 0\n"
	"\tadds r0, 0xAC\n"
	"\tldrh r0, [r0]\n"
	"\tcmp r0, 0\n"
	"\tbne _0801DDCE\n"
	"\tldr r0, [r1, 0x70]\n"
	"\tstr r0, [r1, 0x18]\n"
	"\tadds r7, r4, 0\n"
	"\tb _0801DDF2\n"
"_0801DDCE:\n"
	"\tadds r3, 0x1\n"
	"\tldr r7, _0801DE2C\n"
	"\tcmp r3, 0x7\n"
	"\tbgt _0801DDF2\n"
	"\tldr r2, [r7]\n"
	"\tlsls r0, r3, 1\n"
	"\tadds r1, r2, 0\n"
	"\tadds r1, 0xAC\n"
	"\tadds r1, r0\n"
	"\tldrh r0, [r1]\n"
	"\tcmp r0, 0\n"
	"\tbne _0801DDCE\n"
	"\tlsls r0, r3, 3\n"
	"\tadds r1, r2, 0\n"
	"\tadds r1, 0x70\n"
	"\tadds r1, r0\n"
	"\tldr r0, [r1]\n"
	"\tstr r0, [r2, 0x18]\n"
"_0801DDF2:\n"
	"\tldr r0, _0801DE30\n"
	"\tmov r9, r0\n"
	"\tldr r2, _0801DE2C\n"
	"\tmov r12, r2\n"
	"\tldr r3, _0801DE34\n"
	"\tmov r8, r3\n"
	"\tmovs r2, 0\n"
	"\tmovs r3, 0x3\n"
"_0801DE02:\n"
	"\tmov r4, r12\n"
	"\tldr r1, [r4]\n"
	"\tadds r1, r2\n"
	"\tadds r1, 0xBC\n"
	"\tmov r0, r8\n"
	"\tldm r0!, {r4-r6}\n"
	"\tstm r1!, {r4-r6}\n"
	"\tldm r0!, {r4-r6}\n"
	"\tstm r1!, {r4-r6}\n"
	"\tadds r2, 0x18\n"
	"\tsubs r3, 0x1\n"
	"\tcmp r3, 0\n"
	"\tbge _0801DE02\n"
	"\tldr r1, [r7]\n"
	"\tadds r1, 0xBC\n"
	"\tmov r0, r9\n"
	"\tldm r0!, {r2,r5,r6}\n"
	"\tstm r1!, {r2,r5,r6}\n"
	"\tldm r0!, {r3-r5}\n"
	"\tstm r1!, {r3-r5}\n"
	"\tb _0801DE70\n"
	"\t.align 2, 0\n"
"_0801DE2C: .4byte gUnknown_203B25C\n"
"_0801DE30: .4byte gUnknown_80DBFCC\n"
"_0801DE34: .4byte gUnknown_80DBFB0\n"
"_0801DE38:\n"
	"\tbl CreateOthersMenu\n"
	"\tmov r8, r4\n"
	"\tldr r6, _0801DE88\n"
	"\tmov r12, r6\n"
	"\tmov r7, r8\n"
	"\tmovs r2, 0\n"
	"\tmovs r3, 0x3\n"
"_0801DE48:\n"
	"\tmov r0, r8\n"
	"\tldr r1, [r0]\n"
	"\tadds r1, r2\n"
	"\tadds r1, 0xBC\n"
	"\tmov r0, r12\n"
	"\tldm r0!, {r4-r6}\n"
	"\tstm r1!, {r4-r6}\n"
	"\tldm r0!, {r4-r6}\n"
	"\tstm r1!, {r4-r6}\n"
	"\tadds r2, 0x18\n"
	"\tsubs r3, 0x1\n"
	"\tcmp r3, 0\n"
	"\tbge _0801DE48\n"
	"\tldr r1, [r7]\n"
	"\tadds r1, 0xBC\n"
	"\tldr r0, _0801DE8C\n"
	"\tldm r0!, {r2-r4}\n"
	"\tstm r1!, {r2-r4}\n"
	"\tldm r0!, {r2,r5,r6}\n"
	"\tstm r1!, {r2,r5,r6}\n"
"_0801DE70:\n"
	"\tldr r1, [r7]\n"
	"\tadds r0, r1, 0\n"
	"\tadds r0, 0xBC\n"
	"\tadds r1, 0x6C\n"
	"\tbl sub_8012CAC\n"
	"\tldr r0, [r7]\n"
	"\tadds r0, 0xC8\n"
	"\tmovs r1, 0xA\n"
	"\tstrh r1, [r0]\n"
	"\tb _0801DEAC\n"
	"\t.align 2, 0\n"
"_0801DE88: .4byte gUnknown_80DBFB0\n"
"_0801DE8C: .4byte gUnknown_80DBFCC\n"
"_0801DE90:\n"
	"\tldr r0, [r7]\n"
	"\tlsls r1, r3, 1\n"
	"\tadds r1, r3\n"
	"\tlsls r1, 3\n"
	"\tadds r0, r1\n"
	"\tadds r0, 0xBC\n"
	"\tadds r1, r2, 0\n"
	"\tldm r1!, {r4-r6}\n"
	"\tstm r0!, {r4-r6}\n"
	"\tldm r1!, {r4-r6}\n"
	"\tstm r0!, {r4-r6}\n"
	"\tadds r3, 0x1\n"
	"\tcmp r3, 0x3\n"
	"\tble _0801DE90\n"
"_0801DEAC:\n"
	"\tbl ResetUnusedInputStruct\n"
	"\tldr r0, _0801DECC\n"
	"\tldr r0, [r0]\n"
	"\tadds r0, 0xBC\n"
	"\tmovs r1, 0x1\n"
	"\tmovs r2, 0x1\n"
	"\tbl sub_800641C\n"
	"\tpop {r3,r4}\n"
	"\tmov r8, r3\n"
	"\tmov r9, r4\n"
	"\tpop {r4-r7}\n"
	"\tpop {r0}\n"
	"\tbx r0\n"
	"\t.align 2, 0\n"
"_0801DECC: .4byte gUnknown_203B25C");
}
#endif

void sub_801DED0(void)
{
  switch(gUnknown_203B25C->state) {
    case 0:
    case 1:
        gUnknown_203B25C->unk1C = gOthers_MenuOption;
        sub_8012D60(&gUnknown_203B25C->unk1C,gUnknown_203B25C->menuItems,0,gUnknown_203B25C->unkAC,gUnknown_203B25C->unk18,0);
        break;
    case 3:
        sub_801E3F0(0);
        break;
    case 4:
        CreateHintSelectionScreen(1);
        break;
    case 5:
        CreateHintDisplayScreen(gUnknown_203B25C->chosenHintIndex);
        break;
    case 6:
        // Load our current options?
        gUnknown_203B25C->unk8 = *gUnknown_203B46C;
        sub_801E198(&gUnknown_203B25C->unk8);
        break;
    case 7:
        CreateChangeSettingsConfirmMenu();
        // Change settings?
        sub_8014248(gUnknown_80DBFEC,0,4,gUnknown_203B25C->menuItems,0,4,0,0,0x20);
        break;
  }
}

void CreateOthersMenu(void)
{
  const char *blankText;
  s32 defaultAction;
  struct unkStruct_203B25C *preload;
  
  MemoryFill16(gUnknown_203B25C->unkAC,0,sizeof(gUnknown_203B25C->unkAC));

  // This is dumb that I have to squeeze this in like this
  preload = gUnknown_203B25C;
  blankText = NULL;
  preload->menuItems[0].text = gOthers_GameOptions;
  preload->menuItems[0].menuAction = MENU_OPTION_GAMEOPTIONS;
  defaultAction = MENU_OPTION_DEFAULT;
  preload->menuItems[1].text = gOthers_Hints;
  preload->menuItems[1].menuAction = MENU_OPTION_HINTS;
  preload->menuItems[2].text = blankText;
  preload->menuItems[2].menuAction = defaultAction;
}

void CreateChangeSettingsConfirmMenu(void)
{
  const char *blankText;
  s32 defaultAction;
  struct unkStruct_203B25C *preload;
  
  MemoryFill16(gUnknown_203B25C->unkAC,0,sizeof(gUnknown_203B25C->unkAC));

  // This is dumb that I have to squeeze this in like this
  preload = gUnknown_203B25C;
  blankText = NULL;
  preload->menuItems[0].text = *gUnknown_80D4920; // Yes
  preload->menuItems[0].menuAction = MENU_OPTION_YES;
  defaultAction = MENU_OPTION_DEFAULT;
  preload->menuItems[1].text = *gUnknown_80D4928; // No
  preload->menuItems[1].menuAction = MENU_OPTION_NO;
  preload->menuItems[2].text = blankText;
  preload->menuItems[2].menuAction = defaultAction;
}

void HandleOthersMenu(void)
{
  s32 menuAction;
  
  menuAction = 0;
  if (sub_8012FD8((u32 *)&gUnknown_203B25C->unk1C) == '\0') {
    sub_8013114((u32 *)&gUnknown_203B25C->unk1C,&menuAction);
    gUnknown_203B25C->unk18 = menuAction;
  }
  switch(menuAction)
  {
    case MENU_OPTION_HINTS:
        sub_801DD6C(3);
        break;
    case MENU_OPTION_GAMEOPTIONS:
        sub_801DD6C(6);
        break;
    case MENU_OPTION_DEFAULT:
        sub_801DD6C(2);
        break;
  }
}

void sub_801E088(void)
{

  switch(sub_801E474(1)) 
  {
    case 3:
    case 4:
        gUnknown_203B25C->chosenHintIndex = GetChosenHintIndex();
        sub_801DD6C(5);
        break;
    case 2:
        sub_801E54C();
        sub_801DD6C(1);
        break;
    case 0:
    case 1:
    default:
        break;
  }
}


void sub_801E0E0(void)
{
  switch(HandleHintDisplayScreenInput())
  {
    case 3:
    case 2:
        DestroyHintDisplayScreen();
        sub_801DD6C(4);
        break;
    case 0:
    case 1:
    default:
        break;
  }
}

void sub_801E0FC(void)
{
  switch(sub_801E218())
  {
    case 2: 
    case 3:
        sub_801E2C4();
        // Check to see if the options changed?
        if (GameOptionsNotChange(&gUnknown_203B25C->unk8)) {
            sub_801DD6C(1);
        }
        else {
            sub_801DD6C(7);
        }
        break;
    case 0:
    case 1:
        break;
  }
}

void HandleChangeSettingsMenu(void)
{
  s32 menuAction;
  
  if (sub_80144A4(&menuAction) == 0) 
  {
    switch(menuAction)
    {
        case MENU_OPTION_YES:
            // Save our option changes??
            *gUnknown_203B46C = gUnknown_203B25C->unk8;
            sub_8094C14();
            sub_8099690(0);
            sub_801DD6C(1);
            break;
        case MENU_OPTION_DEFAULT:
        case MENU_OPTION_NO:
            sub_801DD6C(1);
            break;
    }
  }
}