/**
 * minigames/simon.js
 * 🔴 Simon Says — Merke und wiederhole die Farb-Sequenz!
 */
window.MG_simon = (function() {

  const ID       = 'simon';
  const EMOJI    = '🔴';
  const NAME     = 'Simon Says';
  const DESC     = 'Merke die Farb-Reihenfolge und tippe sie nach!';
  const CONTROLS = 'Mausklick / Tippen';
  const MULTI    = 3;

  const COLORS = [
    { id: 0, fill: '#22c55e', glow: 'rgba(34,197,94,0.6)',  label: '🟢' },
    { id: 1, fill: '#ef4444', glow: 'rgba(239,68,68,0.6)',  label: '🔴' },
    { id: 2, fill: '#3b82f6', glow: 'rgba(59,130,246,0.6)', label: '🔵' },
    { id: 3, fill: '#f59e0b', glow: 'rgba(245,158,11,0.6)', label: '🟡' },
  ];

  function run(wrap, W, H, cfg, onDone) {
    const { canvas, ctx } = MGAPI.makeCanvas(wrap, W, H);
    const WIN_ROUNDS = cfg.winRounds || 4;

    // Layout: 2×2 Grid
    const PAD  = 16;
    const GW   = (W - PAD * 3) / 2;
    const GH   = (H - PAD * 3 - 32) / 2;
    const POS  = [
      { x: PAD,        y: 32 + PAD },
      { x: PAD*2+GW,   y: 32 + PAD },
      { x: PAD,        y: 32 + PAD*2 + GH },
      { x: PAD*2+GW,   y: 32 + PAD*2 + GH },
    ];

    let sequence  = [];
    let userSeq   = [];
    let pressedIdx = -1;
    let showIdx   = -1;   // welcher Schritt der Anzeige läuft
    let phase     = 'show'; // 'show' | 'input' | 'result'
    let litIdx    = -1;
    let stopped   = false;
    let raf, stepTimer, endTimer, result = null;

    function addStep() { sequence.push(Math.floor(Math.random() * 4)); }
    function startShow() {
      phase   = 'show';
      litIdx  = -1;
      showIdx = 0;
      userSeq = [];
      stepTimer = setInterval(() => {
        litIdx = (litIdx === -1) ? sequence[showIdx] : -1;
        if (litIdx === -1) {
          showIdx++;
          if (showIdx >= sequence.length) {
            clearInterval(stepTimer);
            litIdx = -1;
            phase  = 'input';
          }
        }
      }, 500);
    }

    function checkInput(colorId) {
      if (phase !== 'input') return;
      pressedIdx = colorId;
      setTimeout(() => { pressedIdx = -1; }, 200);
      userSeq.push(colorId);
      const idx = userSeq.length - 1;

      if (userSeq[idx] !== sequence[idx]) {
        // Falsch
        clearTimeout(endTimer);
        result = 'lose';
        endTimer = setTimeout(() => onDone(false), 1000);
        phase = 'result';
        return;
      }

      if (userSeq.length === sequence.length) {
        if (sequence.length >= WIN_ROUNDS) {
          clearTimeout(endTimer);
          result = 'win';
          endTimer = setTimeout(() => onDone(true), 900);
          phase = 'result';
        } else {
          // Nächste Runde
          phase = 'wait';
          setTimeout(() => {
            addStep();
            startShow();
          }, 800);
        }
      }
    }

    // Klick auf Farb-Button
    canvas.addEventListener('click', e => {
      if (phase !== 'input') return;
      const rect = canvas.getBoundingClientRect();
      const mx = (e.clientX - rect.left) * (canvas.width / rect.width / (window.devicePixelRatio || 1));
      const my = (e.clientY - rect.top)  * (canvas.height / rect.height / (window.devicePixelRatio || 1));
      POS.forEach((p, i) => {
        if (mx >= p.x && mx < p.x + GW && my >= p.y && my < p.y + GH)
          checkInput(i);
      });
    });

    // Starten
    addStep();
    startShow();

    function loop() {
      if (stopped) return;
      raf = requestAnimationFrame(loop);

      ctx.fillStyle = '#050508';
      ctx.fillRect(0, 0, W, H);

      // Felder zeichnen
      POS.forEach((p, i) => {
        const col    = COLORS[i];
        const isLit  = litIdx === i;
        const inUser = pressedIdx === i;

        ctx.shadowColor = isLit || inUser ? col.glow : 'transparent';
        ctx.shadowBlur  = isLit || inUser ? 30 : 0;

        MGAPI.roundRect(ctx, p.x, p.y, GW, GH, 12,
          isLit || inUser ? col.fill : `${col.fill}44`,
          isLit || inUser ? col.fill : `${col.fill}88`);

        ctx.shadowBlur = 0;

        // Emoji mittig
        ctx.font      = `${Math.min(GW, GH) * 0.4}px serif`;
        ctx.textAlign = 'center';
        ctx.fillText(col.label, p.x + GW / 2, p.y + GH / 2 + GH * 0.14);
      });

      // HUD
      const phaseText = phase === 'show'  ? '👀 Schau zu...'
                      : phase === 'input' ? '👆 Deine Runde!'
                      : phase === 'wait'  ? '✅ Richtig!'
                      : '';
      MGAPI.text(ctx, phaseText, W / 2, 18,
        { size: 13, color: phase === 'input' ? '#f59e0b' : '#a7a3c2' });
      MGAPI.text(ctx, `Runde ${sequence.length} / ${WIN_ROUNDS}`, W / 2, H - 10,
        { size: 11, color: 'rgba(255,255,255,0.35)' });

      if (result)
        MGAPI.resultScreen(ctx, W, H, result === 'win',
          result === 'win' ? `${sequence.length} Runden gemeistert!` : 'Falsche Farbe!');
    }

    raf = requestAnimationFrame(loop);
    return {
      stop() {
        stopped = true;
        clearInterval(stepTimer);
        clearTimeout(endTimer);
        cancelAnimationFrame(raf);
      },
    };
  }

  function launch(wrap, W, H, cfg)  { return run(wrap, W, H, cfg, won => MGAPI.onResult(won)); }
  function preview(wrap, W, H, cfg) { return run(wrap, W, H, cfg, won => MGAPI.onResult(won)); }

  return { id: ID, emoji: EMOJI, name: NAME, desc: DESC, controls: CONTROLS, multi: MULTI, launch, preview };

})();