// Wichtel-Panik / Cornish Pixies Arcade Engine (Mobile First - Frenzy & Challenge Overhaul)
(function() {
    let score = 0;
    const targetScore = 12;
    let timeLeft = 30;
    let gameRunning = false;
    let timerInterval = null;
    let spawnTimeout = null;

    // DOM Elements
    const scoreEl = document.getElementById('pixieScore');
    const timerEl = document.getElementById('pixieTimer');
    const startOverlay = document.getElementById('startOverlay');
    const startBtn = document.getElementById('startPixieBtn');
    const successPanel = document.getElementById('pixieSuccess');
    const holes = document.querySelectorAll('.pixie-hole');

    const activeTargets = new Map(); // holeIndex -> { isNeville: bool, timer: id, clicked: bool }

    window.startPixieHunt = function() {
        if (gameRunning) return;
        gameRunning = true;
        score = 0;
        timeLeft = 30;

        if (scoreEl) scoreEl.innerText = score;
        if (timerEl) timerEl.innerText = timeLeft;
        if (startOverlay) startOverlay.style.display = 'none';
        if (successPanel) successPanel.style.display = 'none';

        if (window.soundFX) window.soundFX.playWhoosh();
        if (window.navigator && window.navigator.vibrate) window.navigator.vibrate(30);

        // Start countdown
        timerInterval = setInterval(() => {
            timeLeft--;
            if (timerEl) timerEl.innerText = timeLeft;

            if (timeLeft <= 0) {
                endGame(false);
            }
        }, 1000);

        scheduleNextSpawn();
    };

    function scheduleNextSpawn() {
        if (!gameRunning) return;

        // Dynamic spawn delay based on progress
        let minDelay = 380, maxDelay = 650;
        if (score >= 8) {
            minDelay = 220;
            maxDelay = 420;
        } else if (score >= 4) {
            minDelay = 300;
            maxDelay = 520;
        }

        const delay = Math.random() * (maxDelay - minDelay) + minDelay;
        spawnTimeout = setTimeout(() => {
            spawnTarget();
            // Chance of double spawn when frenzy begins (score >= 4)
            if (score >= 4 && Math.random() < 0.40) {
                setTimeout(spawnTarget, 80);
            }
            scheduleNextSpawn();
        }, delay);
    }

    function spawnTarget() {
        if (!gameRunning) return;

        // Find available holes
        const available = [];
        for (let i = 0; i < 9; i++) {
            if (!activeTargets.has(i)) available.push(i);
        }
        if (available.length === 0) return;

        const holeIdx = available[Math.floor(Math.random() * available.length)];
        const targetEl = document.getElementById(`target${holeIdx}`);
        if (!targetEl) return;

        // 16% chance Neville, 84% chance Pixie
        const isNeville = Math.random() < 0.16;
        targetEl.className = 'pixie-target active';
        targetEl.innerText = isNeville ? '👦' : '🧚';
        if (isNeville) targetEl.classList.add('neville');

        // Dynamic stay duration: faster as player scores higher
        let stayTime = 800;
        if (isNeville) {
            stayTime = 950; // Neville stays a bit longer as a decoy
        } else if (score >= 8) {
            stayTime = Math.random() * 220 + 420; // 420ms - 640ms (Lightning fast frenzy!)
        } else if (score >= 4) {
            stayTime = Math.random() * 250 + 520; // 520ms - 770ms
        } else {
            stayTime = Math.random() * 280 + 660; // 660ms - 940ms
        }

        const hideTimer = setTimeout(() => {
            hideTarget(holeIdx);
        }, stayTime);

        activeTargets.set(holeIdx, {
            isNeville: isNeville,
            timer: hideTimer,
            clicked: false
        });
    }

    function hideTarget(holeIdx) {
        const targetEl = document.getElementById(`target${holeIdx}`);
        if (targetEl) {
            targetEl.classList.remove('active');
            targetEl.classList.remove('frozen');
            targetEl.classList.remove('neville');
            targetEl.innerText = '';
        }
        activeTargets.delete(holeIdx);
    }

    // Pointerdown handler on holes (zero delay on touch devices!)
    holes.forEach(hole => {
        const idx = parseInt(hole.dataset.idx, 10);

        function onHoleTrigger(e) {
            if (!gameRunning) return;
            e.preventDefault();

            if (!activeTargets.has(idx)) return;
            const targetData = activeTargets.get(idx);
            if (targetData.clicked) return;
            targetData.clicked = true;

            const targetEl = document.getElementById(`target${idx}`);

            if (targetData.isNeville) {
                // Clicked Neville -> Penalty (-2 Pkt and -1s)!
                if (window.soundFX) window.soundFX.playWhoosh();
                if (window.navigator && window.navigator.vibrate) window.navigator.vibrate([60, 60]);

                score = Math.max(0, score - 2);
                timeLeft = Math.max(1, timeLeft - 1);
                if (scoreEl) scoreEl.innerText = score;
                if (timerEl) timerEl.innerText = timeLeft;

                targetEl.style.transform = 'scale(1.25) rotate(15deg)';
                if (window.showFloatingToast) {
                    window.showFloatingToast("🤕 <strong>Neville:</strong> »Aua! Ich bin doch kein Wichtel!« (-2 Pkt, -1s)");
                }

                setTimeout(() => hideTarget(idx), 350);

            } else {
                // Clicked Pixie -> Immobilus!
                clearTimeout(targetData.timer);
                targetEl.classList.add('frozen');
                targetEl.innerText = '❄️';

                if (window.soundFX) {
                    window.soundFX.playKeyChime();
                }
                if (window.navigator && window.navigator.vibrate) {
                    window.navigator.vibrate(35);
                }

                score++;
                if (scoreEl) scoreEl.innerText = score;

                if (score >= targetScore) {
                    endGame(true);
                } else {
                    setTimeout(() => hideTarget(idx), 280);
                }
            }
        }

        // Use pointerdown for instant touch & mouse response without delay
        hole.addEventListener('pointerdown', onHoleTrigger);
    });

    async function endGame(won) {
        gameRunning = false;
        clearInterval(timerInterval);
        clearTimeout(spawnTimeout);

        // Hide all active
        activeTargets.forEach((val, idx) => hideTarget(idx));
        activeTargets.clear();

        if (won) {
            let newItem = null;
            try {
                const res = await fetch('/api/pixies/complete', {
                    method: 'POST',
                    headers: { 'Content-Type': 'application/json' },
                    body: JSON.stringify({ caught: score })
                });
                const data = await res.json();
                if (data.new_item) newItem = data.new_item;
            } catch (e) {
                console.error("Pixies complete error:", e);
            }

            if (!newItem) {
                newItem = {
                    id: "pixie_jar",
                    name: "Wichtelglas",
                    icon: "🧚",
                    desc: "Ein dickbauchiges Glas mit einem gebannten Wichtel."
                };
            }

            if (successPanel) successPanel.style.display = 'block';

            if (window.showChamberVictory) {
                window.showChamberVictory({
                    chamberBadge: "Kammer V: Wichtel-Panik",
                    title: "🧚 Wichtel Gebannt!",
                    statsHtml: `<span>❄️ Gebannt: <strong>${score}/${targetScore} Wichtel</strong></span><span>👦 Neville: <strong>Gerettet</strong></span><span>⏱️ Restzeit: <strong>${timeLeft}s</strong></span>`,
                    item: newItem,
                    storyText: "Mit blitzschnellen <em>Immobilus!</em>-Zaubern hast du alle 12 frechen Wichtel eingefroren! Ein zappelnder Wichtel landet sicher im <strong>Wichtelglas</strong>. Neville bedankt sich erleichtert. Der Weg zur berüchtigten <strong>Flammenkammer von Severus Snape</strong> liegt nun offen!",
                    nextUrl: "/bottles",
                    nextBtnText: "➔ Weiter zu Kammer VI: Snapes Flaschen 🧪"
                });
            }

        } else {
            if (window.soundFX) window.soundFX.playWhoosh();
            if (startOverlay) {
                startOverlay.style.display = 'flex';
                if (startBtn) startBtn.innerText = "Erneut versuchen 🔄";
            }
            if (window.showFloatingToast) {
                window.showFloatingToast("⏰ Die Zeit ist abgelaufen! Die Wichtel entwischten. Versuch es noch einmal!");
            }
        }
    }
})();