/**
 * Creates minimal placeholder PNG icons without any dependencies.
 * Run: node assets/create-placeholder-icons.js
 */
const fs = require('fs')
const path = require('path')

// Minimal valid 16x16 PNG (dark blue background)
function createSimplePng(size) {
  // Use a canvas-like approach with raw PNG data
  // This creates a simple colored square PNG
  const { createCanvas } = (() => {
    try { return require('canvas') } catch { return null }
  })() || {}

  if (createCanvas) {
    const canvas = createCanvas(size, size)
    const ctx = canvas.getContext('2d')

    // Background
    ctx.fillStyle = '#1a1a2e'
    const r = size * 0.19
    ctx.beginPath()
    ctx.moveTo(r, 0)
    ctx.lineTo(size - r, 0)
    ctx.quadraticCurveTo(size, 0, size, r)
    ctx.lineTo(size, size - r)
    ctx.quadraticCurveTo(size, size, size - r, size)
    ctx.lineTo(r, size)
    ctx.quadraticCurveTo(0, size, 0, size - r)
    ctx.lineTo(0, r)
    ctx.quadraticCurveTo(0, 0, r, 0)
    ctx.closePath()
    ctx.fill()

    // Play triangle
    const cx = size / 2, cy = size / 2
    const s = size * 0.3
    ctx.fillStyle = '#4f8ef7'
    ctx.beginPath()
    ctx.moveTo(cx - s * 0.5, cy - s * 0.6)
    ctx.lineTo(cx + s * 0.7, cy)
    ctx.lineTo(cx - s * 0.5, cy + s * 0.6)
    ctx.closePath()
    ctx.fill()

    // Red dot
    ctx.fillStyle = '#ef4444'
    ctx.beginPath()
    ctx.arc(size * 0.75, size * 0.25, size * 0.1, 0, Math.PI * 2)
    ctx.fill()

    return canvas.toBuffer('image/png')
  }

  // Fallback: minimal 1x1 PNG
  return Buffer.from(
    '89504e470d0a1a0a0000000d4948445200000001000000010802000000' +
    '9001' + '2e00000000c4944415408d7626060600000000200014fd7181000000049454e44ae426082', 'hex'
  )
}

const sizes = [
  { name: 'icon.png', size: 512 },
  { name: 'tray-icon.png', size: 32 }
]

for (const { name, size } of sizes) {
  const buf = createSimplePng(size)
  fs.writeFileSync(path.join(__dirname, name), buf)
  console.log(`Created ${name}`)
}