/**
 * Render smoke test: runs the canvas renderer with a stub 2D context and
 * one enemy of every kind on screen, so every drawEnemy code path
 * (including new enemy types) executes without throwing.
 * Run: npx tsx scripts/test-render-smoke.mts
 */
import { GameEngine } from '../src/game/engine.ts'
import type { EnemyKind } from '../src/game/types.ts'

const gradient = { addColorStop: () => undefined }
const noop = () => undefined

const makeCanvas = (): Record<string, unknown> => ({
  width: 960,
  height: 528,
  style: {},
  getContext: () => makeCtx(),
  addEventListener: noop,
  removeEventListener: noop,
})

const makeCtx = (): Record<string, unknown> => ({
  canvas: {},
  createLinearGradient: () => gradient,
  createRadialGradient: () => gradient,
  measureText: () => ({ width: 10 }),
  addColorStop: noop, arc: noop, arcTo: noop, beginPath: noop, clearRect: noop,
  closePath: noop, drawImage: noop, ellipse: noop, fill: noop, fillRect: noop,
  fillText: noop, lineTo: noop, moveTo: noop, quadraticCurveTo: noop,
  bezierCurveTo: noop, rect: noop, restore: noop, rotate: noop, roundRect: noop,
  save: noop, scale: noop, setLineDash: noop, setTransform: noop, stroke: noop,
  strokeRect: noop, strokeText: noop, translate: noop, clip: noop,
})

// the renderer creates an offscreen background canvas via document
;(globalThis as Record<string, unknown>).document = {
  createElement: () => makeCanvas(),
}

const fakeCanvas = makeCanvas() as unknown as HTMLCanvasElement

const eng = new GameEngine()
eng.startGame('normal', 'meadow')
;(eng as unknown as { attach(c: HTMLCanvasElement): void }).attach(fakeCanvas)

const kinds: EnemyKind[] = ['normal', 'fast', 'tank', 'flyer', 'boss', 'brute', 'phantom', 'scorpion', 'golem', 'dragon']
const engAny = eng as unknown as { spawnEnemy(k: EnemyKind): void }
kinds.forEach((k) => engAny.spawnEnemy(k))

// spread enemies along the path so overlays, hp bars & effects also draw
eng.enemies.forEach((e, i) => {
  e.x = 120 + i * 70
  e.y = 100 + (i % 5) * 60
  e.maxHp = e.hp = 50 // partially damaged -> hp bars render
})

const renderer = (eng as unknown as { renderer: { render(e: unknown): void } }).renderer
renderer.render(eng)

// second frame with slow/dot effects active on all enemies
eng.enemies.forEach((e) => {
  e.slowUntil = eng.time + 1
  e.dotUntil = eng.time + 1
  e.dotDps = 5
  e.dotColor = '#0f0'
  e.flash = 0.5
})
renderer.render(eng)

console.log('Render-Smoke: alle 10 Gegnertypen (2 Frames, mit Slow/DoT/Flash) fehlerfrei gezeichnet ✓')
process.exit(0)