/**
 * Simple 5x7 Matrix Pixel Font
 * Each character is a 5x7 bitmask
 */
const FONT_DATA = {
  'A': [0x0E, 0x11, 0x11, 0x1F, 0x11, 0x11, 0x11],
  'B': [0x1E, 0x11, 0x11, 0x1E, 0x11, 0x11, 0x1E],
  'C': [0x0E, 0x11, 0x11, 0x10, 0x11, 0x11, 0x0E],
  'D': [0x1E, 0x11, 0x11, 0x11, 0x11, 0x11, 0x1E],
  'E': [0x1F, 0x10, 0x10, 0x1E, 0x10, 0x10, 0x1F],
  'F': [0x1F, 0x10, 0x10, 0x1E, 0x10, 0x10, 0x10],
  'G': [0x0F, 0x10, 0x10, 0x17, 0x11, 0x11, 0x0F],
  'H': [0x11, 0x11, 0x11, 0x1F, 0x11, 0x11, 0x11],
  'I': [0x0E, 0x04, 0x04, 0x04, 0x04, 0x04, 0x0E],
  'J': [0x07, 0x02, 0x02, 0x02, 0x02, 0x12, 0x0C],
  'K': [0x11, 0x12, 0x14, 0x18, 0x14, 0x12, 0x11],
  'L': [0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x1F],
  'M': [0x11, 0x1B, 0x15, 0x15, 0x11, 0x11, 0x11],
  'N': [0x11, 0x11, 0x19, 0x15, 0x13, 0x11, 0x11],
  'O': [0x0E, 0x11, 0x11, 0x11, 0x11, 0x11, 0x0E],
  'P': [0x1E, 0x11, 0x11, 0x1E, 0x10, 0x10, 0x10],
  'Q': [0x0E, 0x11, 0x11, 0x11, 0x15, 0x12, 0x0D],
  'R': [0x1E, 0x11, 0x11, 0x1E, 0x14, 0x12, 0x11],
  'S': [0x0E, 0x11, 0x10, 0x0E, 0x01, 0x11, 0x0E],
  'T': [0x1F, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04],
  'U': [0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x0E],
  'V': [0x11, 0x11, 0x11, 0x11, 0x11, 0x0A, 0x04],
  'W': [0x11, 0x11, 0x11, 0x15, 0x15, 0x1B, 0x11],
  'X': [0x11, 0x11, 0x0A, 0x04, 0x0A, 0x11, 0x11],
  'Y': [0x11, 0x11, 0x0A, 0x04, 0x04, 0x04, 0x04],
  'Z': [0x1F, 0x01, 0x02, 0x04, 0x08, 0x10, 0x1F],
  '0': [0x0E, 0x11, 0x13, 0x15, 0x19, 0x11, 0x0E],
  '1': [0x04, 0x0C, 0x04, 0x04, 0x04, 0x04, 0x0E],
  '2': [0x0E, 0x11, 0x01, 0x02, 0x04, 0x08, 0x1F],
  '3': [0x1F, 0x02, 0x04, 0x02, 0x01, 0x11, 0x0E],
  '4': [0x02, 0x06, 0x0A, 0x12, 0x1F, 0x02, 0x02],
  '5': [0x1F, 0x10, 0x1E, 0x01, 0x01, 0x11, 0x0E],
  '6': [0x06, 0x08, 0x10, 0x1E, 0x11, 0x11, 0x0E],
  '7': [0x1F, 0x01, 0x02, 0x04, 0x08, 0x08, 0x08],
  '8': [0x0E, 0x11, 0x11, 0x0E, 0x11, 0x11, 0x0E],
  '9': [0x0E, 0x11, 0x11, 0x0F, 0x01, 0x02, 0x0C],
  ':': [0x00, 0x04, 0x00, 0x00, 0x00, 0x04, 0x00],
  '.': [0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00],
  ',': [0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x08],
  '!': [0x04, 0x04, 0x04, 0x04, 0x04, 0x00, 0x04],
  '?': [0x0E, 0x11, 0x01, 0x02, 0x04, 0x00, 0x04],
  '+': [0x00, 0x04, 0x04, 0x1F, 0x04, 0x04, 0x00],
  '-': [0x00, 0x00, 0x00, 0x1F, 0x00, 0x00, 0x00],
  '/': [0x01, 0x02, 0x04, 0x08, 0x10, 0x10, 0x10],
  '(': [0x02, 0x04, 0x04, 0x04, 0x04, 0x04, 0x02],
  ')': [0x08, 0x04, 0x04, 0x04, 0x04, 0x04, 0x08],
  ' ': [0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
  '|': [0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04]
};

export const PixelFont = {
  drawText(ctx, text, x, y, color = '#ffffff', scale = 1) {
    ctx.save();
    ctx.fillStyle = color;
    let cursorX = x;

    const chars = text.toUpperCase().split('');
    chars.forEach(char => {
      const glyph = FONT_DATA[char] || FONT_DATA['?'];
      for (let row = 0; row < 7; row++) {
        for (let col = 0; col < 5; col++) {
          if ((glyph[row] >> (4 - col)) & 1) {
            ctx.fillRect(cursorX + col * scale, y + row * scale, scale, scale);
          }
        }
      }
      cursorX += 6 * scale; // 5 width + 1 spacing
    });
    ctx.restore();
  },

  getTextWidth(text, scale = 1) {
    return text.length * 6 * scale;
  }
};