// ==========================================
// INPUT HANDLING (WEBSOCKET VERSION)
// ==========================================

function handleInput(action, active) {
    if (isGameOver) {
        if(active) location.reload();
        return;
    }

    if (action === "JUMP" && active) {
        if (player.grounded && !isCrouching) {

            player.vy = JUMP_POWER;
            player.grounded = false;

            playSound('jump');
            spawnParticles(player.x + 15, player.y + 50, 'dust', 5); // Staubwolke an den Füßen

            if (typeof sendInput === "function") {
                sendInput("input", "JUMP");
            }
        }
    }

    if (action === "DUCK") {
        const wasCrouching = isCrouching;

        isCrouching = active;

        if (wasCrouching !== isCrouching) {
            if (typeof sendInput === "function") {
                sendInput("input", active ? "DUCK_START" : "DUCK_END");
            }
        }
    }
}

// ==========================================
// EVENT LISTENERS
// ==========================================


window.addEventListener('keydown', (e) => {

    if (e.target.tagName === 'INPUT' || e.target.tagName === 'TEXTAREA') return;

    if (e.code === 'Space' || e.code === 'ArrowUp') handleInput("JUMP", true);
    if (e.code === 'ArrowDown' || e.code === 'KeyS') handleInput("DUCK", true);
    if (e.code === 'F9') {
        e.preventDefault();
        console.log("🐞 Fordere Debug-Daten vom Server an...");
        if (typeof sendInput === "function") {
            if (socket && socket.readyState === WebSocket.OPEN) {
                socket.send(JSON.stringify({ type: "debug" }));
            }
        }
    }
});

window.addEventListener('keyup', (e) => {
    if (e.target.tagName === 'INPUT' || e.target.tagName === 'TEXTAREA') return;

    if (e.code === 'ArrowDown' || e.code === 'KeyS') handleInput("DUCK", false);
});

// Maus / Touch (Einfach)
window.addEventListener('mousedown', (e) => {
    // Nur Linksklick und nur auf dem Canvas
    if (e.target === canvas && e.button === 0) handleInput("JUMP", true);
});

// Touch (Swipe Gesten)
let touchStartY = 0;

window.addEventListener('touchstart', (e) => {
    if(e.target === canvas) {
        e.preventDefault();
        touchStartY = e.touches[0].clientY;
    }
}, { passive: false });

window.addEventListener('touchend', (e) => {
    if(e.target === canvas) {
        e.preventDefault();
        const touchEndY = e.changedTouches[0].clientY;
        const diff = touchEndY - touchStartY;

        // Nach oben wischen oder Tippen = Sprung
        if (diff < -30) {
            handleInput("JUMP", true);
        }
        // Nach unten wischen = Ducken (kurz)
        else if (diff > 30) {
            handleInput("DUCK", true);
            setTimeout(() => handleInput("DUCK", false), 800);
        }
        // Einfaches Tippen (wenig Bewegung) = Sprung
        else if (Math.abs(diff) < 10) {
            handleInput("JUMP", true);
        }
    }
});