const fs = require('fs');
const path = require('path');
const { createCanvas } = require('@napi-rs/canvas');

const SIZE = 600;
const outDir = __dirname;

function roundedRect(ctx, x, y, w, h, r) {
  ctx.beginPath();
  ctx.moveTo(x + r, y);
  ctx.arcTo(x + w, y, x + w, y + h, r);
  ctx.arcTo(x + w, y + h, x, y + h, r);
  ctx.arcTo(x, y + h, x, y, r);
  ctx.arcTo(x, y, x + w, y, r);
  ctx.closePath();
}

function drawSteam(ctx, x, y, color) {
  ctx.strokeStyle = color;
  ctx.lineWidth = 10;
  ctx.lineCap = 'round';

  ctx.beginPath();
  ctx.moveTo(x, y + 32);
  ctx.bezierCurveTo(x - 14, y + 6, x + 22, y - 6, x + 8, y - 34);
  ctx.stroke();
}

function drawChopsticks(ctx, color) {
  ctx.strokeStyle = color;
  ctx.lineWidth = 12;
  ctx.lineCap = 'round';

  ctx.beginPath();
  ctx.moveTo(380, 170);
  ctx.lineTo(490, 280);
  ctx.stroke();

  ctx.beginPath();
  ctx.moveTo(415, 150);
  ctx.lineTo(525, 260);
  ctx.stroke();
}

function drawLogo({
  filename,
  bgGradientFrom,
  bgGradientTo,
  cardColor,
  cardShadow,
  bowlTop,
  bowlBottom,
  accent,
  textColor,
  steamColor,
  chopColor,
}) {
  const canvas = createCanvas(SIZE, SIZE);
  const ctx = canvas.getContext('2d');

  // background
  const bg = ctx.createLinearGradient(0, 0, SIZE, SIZE);
  bg.addColorStop(0, bgGradientFrom);
  bg.addColorStop(1, bgGradientTo);
  ctx.fillStyle = bg;
  ctx.fillRect(0, 0, SIZE, SIZE);

  // icon card
  ctx.save();
  ctx.shadowColor = cardShadow;
  ctx.shadowBlur = 28;
  ctx.shadowOffsetY = 14;
  roundedRect(ctx, 72, 72, 456, 456, 120);
  ctx.fillStyle = cardColor;
  ctx.fill();
  ctx.restore();

  // bowl gradient
  const bowlGrad = ctx.createLinearGradient(200, 270, 400, 420);
  bowlGrad.addColorStop(0, bowlTop);
  bowlGrad.addColorStop(1, bowlBottom);

  // bowl body
  ctx.fillStyle = bowlGrad;
  roundedRect(ctx, 170, 300, 260, 130, 54);
  ctx.fill();

  // bowl lip
  ctx.fillStyle = 'rgba(255,255,255,0.86)';
  ctx.beginPath();
  ctx.ellipse(300, 298, 144, 36, 0, 0, Math.PI * 2);
  ctx.fill();

  // inner bowl
  ctx.fillStyle = 'rgba(13,31,60,0.32)';
  ctx.beginPath();
  ctx.ellipse(300, 300, 76, 18, 0, 0, Math.PI * 2);
  ctx.fill();

  // noodles
  ctx.strokeStyle = accent;
  ctx.lineWidth = 9;
  ctx.lineCap = 'round';
  for (let i = 0; i < 3; i++) {
    const y = 282 + i * 8;
    ctx.beginPath();
    ctx.moveTo(220, y);
    ctx.bezierCurveTo(250, y - 14, 350, y - 14, 380, y);
    ctx.stroke();
  }

  // steam
  drawSteam(ctx, 245, 215, steamColor);
  drawSteam(ctx, 300, 190, steamColor);
  drawSteam(ctx, 355, 215, steamColor);

  // chopsticks
  drawChopsticks(ctx, chopColor);

  // JM monogram chip
  roundedRect(ctx, 220, 448, 160, 56, 28);
  ctx.fillStyle = 'rgba(255,255,255,0.22)';
  ctx.fill();

  ctx.fillStyle = textColor;
  ctx.font = 'bold 34px sans-serif';
  ctx.textAlign = 'center';
  ctx.textBaseline = 'middle';
  ctx.fillText('점메추', 300, 476);

  const output = path.join(outDir, filename);
  fs.writeFileSync(output, canvas.toBuffer('image/png'));
  return output;
}

const light = drawLogo({
  filename: 'lunch-pick-logo-light-600-v2.png',
  bgGradientFrom: '#F7FBFF',
  bgGradientTo: '#E8F3FF',
  cardColor: 'rgba(255,255,255,0.94)',
  cardShadow: 'rgba(30,102,180,0.20)',
  bowlTop: '#29B2F4',
  bowlBottom: '#0A7FE8',
  accent: '#0876D7',
  textColor: '#0F3F7C',
  steamColor: '#5AAAF6',
  chopColor: '#1D4D87',
});

const dark = drawLogo({
  filename: 'lunch-pick-logo-dark-600-v2.png',
  bgGradientFrom: '#061226',
  bgGradientTo: '#0D203F',
  cardColor: 'rgba(17,39,72,0.95)',
  cardShadow: 'rgba(0,0,0,0.45)',
  bowlTop: '#56C8FF',
  bowlBottom: '#1997F0',
  accent: '#9ED9FF',
  textColor: '#EAF4FF',
  steamColor: '#BFE4FF',
  chopColor: '#E6F3FF',
});

console.log(light);
console.log(dark);