#ifndef GUARD_TEXT_H
#define GUARD_TEXT_H

#include "characters.h"

#define NUM_TEXT_PRINTERS 32

#define TEXT_SPEED_FF 0xFF

enum
{
    FONTATTR_MAX_LETTER_WIDTH,
    FONTATTR_MAX_LETTER_HEIGHT,
    FONTATTR_LETTER_SPACING,
    FONTATTR_LINE_SPACING,
    FONTATTR_UNKNOWN,   // dunno what this is yet
    FONTATTR_COLOR_FOREGROUND,
    FONTATTR_COLOR_BACKGROUND,
    FONTATTR_COLOR_SHADOW
};

struct TextPrinterSubStruct
{
    u8 glyphId:4;  // 0x14
    bool8 hasPrintBeenSpedUp:1;
    u8 unk:3;
    u8 downArrowDelay:5;
    u8 downArrowYPosIdx:2;
    bool8 hasGlyphIdBeenSet:1;
    u8 autoScrollDelay;
};

struct TextPrinterTemplate
{
    const u8* currentChar;
    u8 windowId;
    u8 fontId;
    u8 x;
    u8 y;
    u8 currentX;        // 0x8
    u8 currentY;
    u8 letterSpacing;
    u8 lineSpacing;
    u8 unk:4;   // 0xC
    u8 fgColor:4;
    u8 bgColor:4;
    u8 shadowColor:4;
};

struct TextPrinter
{
    struct TextPrinterTemplate printerTemplate;

    void (*callback)(struct TextPrinterTemplate *, u16); // 0x10

    u8 subStructFields[7]; // always cast to struct TextPrinterSubStruct... so why bother
    u8 active;
    u8 state;       // 0x1C
    u8 textSpeed;
    u8 delayCounter;
    u8 scrollDistance;
    u8 minLetterSpacing;  // 0x20
    u8 japanese;
};

struct FontInfo
{
    u16 (*fontFunction)(struct TextPrinter *x);
    u8 maxLetterWidth;
    u8 maxLetterHeight;
    u8 letterSpacing;
    u8 lineSpacing;
    u8 unk:4;
    u8 fgColor:4;
    u8 bgColor:4;
    u8 shadowColor:4;
};

extern const struct FontInfo *gFonts;

struct GlyphWidthFunc
{
    u32 fontId;
    u32 (*func)(u16 glyphId, bool32 isJapanese);
};

struct KeypadIcon
{
    u16 tileOffset;
    u8 width;
    u8 height;
};

typedef struct {
    bool8 canABSpeedUpPrint:1;
    bool8 useAlternateDownArrow:1;
    bool8 autoScroll:1;
    bool8 forceMidTextSpeed:1;
} TextFlags;

struct TextGlyph
{
    u32 gfxBufferTop[16];
    u32 gfxBufferBottom[16];
    u8 width;
    u8 height;
};

extern TextFlags gTextFlags;

extern u8 gDisableTextPrinters;
extern struct TextGlyph gCurGlyph;

void SetFontsPointer(const struct FontInfo *fonts);
void DeactivateAllTextPrinters(void);
u16 AddTextPrinterParameterized(u8 windowId, u8 fontId, const u8 *str, u8 x, u8 y, u8 speed, void (*callback)(struct TextPrinterTemplate *, u16));
bool16 AddTextPrinter(struct TextPrinterTemplate *template, u8 speed, void (*callback)(struct TextPrinterTemplate *, u16));
void RunTextPrinters(void);
bool16 IsTextPrinterActive(u8 id);
u32 RenderFont(struct TextPrinter *textPrinter);
void GenerateFontHalfRowLookupTable(u8 fgColor, u8 bgColor, u8 shadowColor);
void SaveTextColors(u8 *fgColor, u8 *bgColor, u8 *shadowColor);
void RestoreTextColors(u8 *fgColor, u8 *bgColor, u8 *shadowColor);
void DecompressGlyphTile(const void *src_, void *dest_);
u8 GetLastTextColor(u8 colorType);
void CopyGlyphToWindow(struct TextPrinter *x);
void ClearTextSpan(struct TextPrinter *textPrinter, u32 width);
u8 GetMenuCursorDimensionByFont(u8, u8);

u16 Font0Func(struct TextPrinter *textPrinter);
u16 Font1Func(struct TextPrinter *textPrinter);
u16 Font2Func(struct TextPrinter *textPrinter);
u16 Font3Func(struct TextPrinter *textPrinter);
u16 Font4Func(struct TextPrinter *textPrinter);
u16 Font5Func(struct TextPrinter *textPrinter);
u16 Font7Func(struct TextPrinter *textPrinter);
u16 Font8Func(struct TextPrinter *textPrinter);

void TextPrinterInitDownArrowCounters(struct TextPrinter *textPrinter);
void TextPrinterDrawDownArrow(struct TextPrinter *textPrinter);
void TextPrinterClearDownArrow(struct TextPrinter *textPrinter);
bool8 TextPrinterWaitAutoMode(struct TextPrinter *textPrinter);
bool16 TextPrinterWaitWithDownArrow(struct TextPrinter *textPrinter);
bool16 TextPrinterWait(struct TextPrinter *textPrinter);
void DrawDownArrow(u8 windowId, u16 x, u16 y, u8 bgColor, bool8 drawArrow, u8 *counter, u8 *yCoordIndex);
u16 RenderText(struct TextPrinter *textPrinter);
u32 GetStringWidthFixedWidthFont(const u8 *str, u8 fontId, u8 letterSpacing);
u32 (*GetFontWidthFunc(u8 glyphId))(u16, bool32);
s32 GetStringWidth(u8 fontId, const u8 *str, s16 letterSpacing);
u8 RenderTextFont9(u8 *pixels, u8 fontId, u8 *str);
u8 DrawKeypadIcon(u8 windowId, u8 keypadIconId, u16 x, u16 y);
u8 GetKeypadIconTileOffset(u8 keypadIconId);
u8 GetKeypadIconWidth(u8 keypadIconId);
u8 GetKeypadIconHeight(u8 keypadIconId);
void SetDefaultFontsPointer(void);
u8 GetFontAttribute(u8 fontId, u8 attributeId);
u8 GetMenuCursorDimensionByFont(u8 fontId, u8 whichDimension);
void DecompressGlyphFont0(u16 glyphId, bool32 isJapanese);
u32 GetGlyphWidthFont0(u16 glyphId, bool32 isJapanese);
void DecompressGlyphFont7(u16 glyphId, bool32 isJapanese);
u32 GetGlyphWidthFont7(u16 glyphId, bool32 isJapanese);
void DecompressGlyphFont8(u16 glyphId, bool32 isJapanese);
u32 GetGlyphWidthFont8(u16 glyphId, bool32 isJapanese);
void DecompressGlyphFont2(u16 glyphId, bool32 isJapanese);
u32 GetGlyphWidthFont2(u16 glyphId, bool32 isJapanese);
void DecompressGlyphFont1(u16 glyphId, bool32 isJapanese);
u32 GetGlyphWidthFont1(u16 glyphId, bool32 isJapanese);
void DecompressGlyphFont9(u16 glyphId);

// unk_text_util_2.c
u16 Font6Func(struct TextPrinter *textPrinter);
u32 GetGlyphWidthFont6(u16 glyphId, bool32 isJapanese);

#endif // GUARD_TEXT_H