#include "global.h"
#include "text.h"
#include "window.h"
#include "palette.h"

extern u8 LoadBgTiles(u8 bg, const void *src, u16 size, u16 destOffset);
extern void FillBgTilemapBufferRect(u8 bg, u16 tileNum, u8 x, u8 y, u8 width, u8 height, u8 palette);

struct TilesPal
{
    u32* tiles;
    u16* pal;
};

extern const struct TilesPal gUnknown_0851021C[];
extern const u32 gUnknown_08DDD748[];
extern const u16 gUnknown_0851017C[];
extern const u16 gUnknown_08DDD728[];

const u16* sub_8098C64(void);
void sub_809882C(u8 windowId, u16 destOffset, u8 palOffset);

const struct TilesPal* sub_8098758(u8 id)
{
    if (id > 19)
        return &gUnknown_0851021C[0];
    else
        return &gUnknown_0851021C[id];
}

void copy_textbox_border_tile_patterns_to_vram(u8 windowId, u16 destOffset, u8 palOffset)
{
    LoadBgTiles(GetWindowAttribute(windowId, WINDOW_PRIORITY), gUnknown_08DDD748, 0x1C0, destOffset);
    LoadPalette(sub_8098C64(), palOffset, 0x20);
}

void box_border_load_tiles_and_pal(u8 windowId, u16 destOffset, u8 palOffset)
{
    sub_809882C(windowId, destOffset, palOffset);
}

void sub_80987D4(u8 windowId, u8 frameId, u16 destOffset, u8 palOffset)
{
    LoadBgTiles(GetWindowAttribute(windowId, WINDOW_PRIORITY), gUnknown_0851021C[frameId].tiles, 0x120, destOffset);
    LoadPalette(gUnknown_0851021C[frameId].pal, palOffset, 0x20);
}

void sub_809882C(u8 windowId, u16 destOffset, u8 palOffset)
{
    sub_80987D4(windowId, gSaveBlock2Ptr->optionsWindowFrameType, destOffset, palOffset);
}

void sub_8098858(u8 windowId, u16 tileNum, u8 palNum)
{
    u8 bgLayer = GetWindowAttribute(windowId, WINDOW_PRIORITY);
    u16 tilemapLeft = GetWindowAttribute(windowId, WINDOW_TILEMAP_LEFT);
    u16 tilemapTop = GetWindowAttribute(windowId, WINDOW_TILEMAP_TOP);
    u16 width = GetWindowAttribute(windowId, WINDOW_WIDTH);
    u16 height = GetWindowAttribute(windowId, WINDOW_HEIGHT);

    FillBgTilemapBufferRect(bgLayer, tileNum + 0, tilemapLeft - 1,      tilemapTop - 1,         1,      1,      palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 1, tilemapLeft,          tilemapTop - 1,         width,  1,      palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 2, tilemapLeft + width,  tilemapTop - 1,         1,      1,      palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 3, tilemapLeft - 1,      tilemapTop,             1,      height, palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 5, tilemapLeft + width,  tilemapTop,             1,      height, palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 6, tilemapLeft - 1,      tilemapTop + height,    1,      1,      palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 7, tilemapLeft,          tilemapTop + height,    width,  1,      palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 8, tilemapLeft + width,  tilemapTop + height,    1,      1,      palNum);
}

void sub_80989E0(u8 windowId, u16 tileNum, u8 palNum)
{
    u8 bgLayer = GetWindowAttribute(windowId, WINDOW_PRIORITY);
    u16 tilemapLeft = GetWindowAttribute(windowId, WINDOW_TILEMAP_LEFT);
    u16 tilemapTop = GetWindowAttribute(windowId, WINDOW_TILEMAP_TOP);
    u16 width = GetWindowAttribute(windowId, WINDOW_WIDTH);
    u16 height = GetWindowAttribute(windowId, WINDOW_HEIGHT);

    FillBgTilemapBufferRect(bgLayer, tileNum + 0, tilemapLeft,              tilemapTop,                 1,          1,          palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 1, tilemapLeft + 1,          tilemapTop,                 width - 2,  1,          palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 2, tilemapLeft + width - 1,  tilemapTop,                 1,          1,          palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 3, tilemapLeft,              tilemapTop + 1,             1,          height - 2, palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 5, tilemapLeft + width - 1,  tilemapTop + 1,             1,          height - 2, palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 6, tilemapLeft,              tilemapTop + height - 1,    1,          1,          palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 7, tilemapLeft + 1,          tilemapTop + height - 1,    width -     2,  1,      palNum);
    FillBgTilemapBufferRect(bgLayer, tileNum + 8, tilemapLeft + width - 1,  tilemapTop + height - 1,    1,          1,          palNum);
}

void rbox_fill_rectangle(u8 windowId)
{
    u8 bgLayer = GetWindowAttribute(windowId, WINDOW_PRIORITY);
    u16 tilemapLeft = GetWindowAttribute(windowId, WINDOW_TILEMAP_LEFT);
    u16 tilemapTop = GetWindowAttribute(windowId, WINDOW_TILEMAP_TOP);
    u16 width = GetWindowAttribute(windowId, WINDOW_WIDTH);
    u16 height = GetWindowAttribute(windowId, WINDOW_HEIGHT);

    FillBgTilemapBufferRect(bgLayer, 0, tilemapLeft - 1, tilemapTop - 1, width + 2, height + 2, 0x11);
}

const u16* stdpal_get(u8 id)
{
    switch (id)
    {
    case 0:
        id = 0;
        break;
    case 1:
        id = 0x10;
        break;
    case 2:
        id = 0x20;
        break;
    case 3:
        id = 0x30;
        break;
    case 4:
    default:
        id = 0x40;
        break;
    }
    return &gUnknown_0851017C[id];
}

const u16* sub_8098C64(void)
{
    return gUnknown_08DDD728;
}

void sub_8098C6C(u8 bg, u16 destOffset, u8 palOffset)
{
    LoadBgTiles(bg, gUnknown_0851021C[gSaveBlock2Ptr->optionsWindowFrameType].tiles, 0x120, destOffset);
    LoadPalette(sub_8098758(gSaveBlock2Ptr->optionsWindowFrameType)->pal, palOffset, 0x20);
}