// ===== Cookie Banner =====
(function() {
    const banner = document.getElementById('cookieBanner');
    const acceptBtn = document.getElementById('cookieAccept');
    if (!banner || !acceptBtn) return;

    const consent = localStorage.getItem('olyapka_cookies_consent');
    if (!consent) {
        setTimeout(() => banner.classList.add('show'), 800);
    } else {
        banner.classList.add('hidden');
    }

    acceptBtn.addEventListener('click', function() {
        localStorage.setItem('olyapka_cookies_consent', '1');
        banner.classList.remove('show');
        setTimeout(() => banner.classList.add('hidden'), 400);
        // Goal for Yandex.Metrika
        if (typeof ym !== 'undefined') ym(110606131, 'reachGoal', 'cookie_accept');
        if (typeof gtag !== 'undefined') gtag('event', 'cookie_accept');
    });
})();

// ===== Mobile Menu =====
(function() {
    const burger = document.getElementById('burger');
    const nav = document.getElementById('nav');
    if (!burger || !nav) return;

    burger.addEventListener('click', function() {
        burger.classList.toggle('open');
        nav.classList.toggle('open');
    });

    // Close on link click
    nav.querySelectorAll('.nav-link').forEach(link => {
        link.addEventListener('click', () => {
            burger.classList.remove('open');
            nav.classList.remove('open');
        });
    });
})();

// ===== Goal Tracking (Yandex.Metrika + GA) =====
(function() {
    document.addEventListener('click', function(e) {
        const target = e.target.closest('[data-goal]');
        if (!target) return;
        const goal = target.getAttribute('data-goal');
        if (!goal) return;

        // Yandex.Metrika
        if (typeof ym !== 'undefined') {
            try { ym(110606131, 'reachGoal', goal); } catch(err) {}
        }
        // Google Analytics
        if (typeof gtag !== 'undefined') {
            try { gtag('event', goal); } catch(err) {}
        }
    });
})();

// ===== Smooth scroll for anchor links =====
document.querySelectorAll('a[href^="#"]').forEach(anchor => {
    anchor.addEventListener('click', function(e) {
        const target = document.querySelector(this.getAttribute('href'));
        if (target) {
            e.preventDefault();
            target.scrollIntoView({ behavior: 'smooth', block: 'start' });
        }
    });
});

// ===== Portfolio Video Lightbox =====
(function() {
    const modal = document.getElementById('videoModal');
    const player = document.getElementById('videoModalPlayer');
    const title = document.getElementById('videoModalTitle');
    const fsBtn = document.getElementById('videoModalFullscreen');
    const triggers = document.querySelectorAll('.work-video[data-video]');
    if (!modal || !player || !triggers.length) return;

    let lastFocus = null;

    function open(src, label) {
        lastFocus = document.activeElement;
        title.textContent = label || '';
        player.src = src;
        modal.classList.add('open');
        modal.setAttribute('aria-hidden', 'false');
        document.body.classList.add('video-modal-open');
        const p = player.play();
        if (p && typeof p.catch === 'function') p.catch(() => {});
        player.focus({ preventScroll: true });
    }

    function close() {
        if (document.fullscreenElement) {
            document.exitFullscreen().catch(() => {});
        }
        player.pause();
        modal.classList.remove('open');
        modal.setAttribute('aria-hidden', 'true');
        document.body.classList.remove('video-modal-open');
        setTimeout(() => {
            if (!modal.classList.contains('open')) {
                player.removeAttribute('src');
                player.load();
            }
        }, 300);
        if (lastFocus && typeof lastFocus.focus === 'function') lastFocus.focus({ preventScroll: true });
    }

    function toggleFullscreen() {
        if (document.fullscreenElement) {
            document.exitFullscreen().catch(() => {});
            return;
        }
        if (player.requestFullscreen) {
            player.requestFullscreen().catch(() => {});
        } else if (player.webkitEnterFullscreen) {
            player.webkitEnterFullscreen(); // iOS Safari
        }
    }

    triggers.forEach(btn => {
        btn.addEventListener('click', function(e) {
            e.preventDefault();
            open(btn.getAttribute('data-video'), btn.getAttribute('data-title'));
        });
    });

    // Превью: когда карточка попадает в зону видимости, гарантируем загрузку первого кадра
    const previews = document.querySelectorAll('.work-video-preview');
    if ('IntersectionObserver' in window && previews.length) {
        const io = new IntersectionObserver((entries, obs) => {
            entries.forEach(entry => {
                if (!entry.isIntersecting) return;
                const v = entry.target;
                obs.unobserve(v);
                if (v.readyState < 2) {
                    v.preload = 'auto';
                    v.load();
                }
                v.addEventListener('loadeddata', () => {
                    if (v.currentTime === 0) { try { v.currentTime = 0.1; } catch (err) {} }
                    v.preload = 'metadata';
                }, { once: true });
            });
        }, { rootMargin: '200px 0px' });
        previews.forEach(v => io.observe(v));
    }

    modal.querySelectorAll('[data-video-close]').forEach(el => {
        el.addEventListener('click', close);
    });

    // Клик по тёмной области вокруг плеера тоже закрывает окно
    modal.querySelectorAll('.video-modal-dialog, .video-modal-stage, .video-modal-bar').forEach(el => {
        el.addEventListener('click', function(e) {
            if (e.target === el) close();
        });
    });

    if (fsBtn) fsBtn.addEventListener('click', toggleFullscreen);

    player.addEventListener('dblclick', toggleFullscreen);

    document.addEventListener('keydown', function(e) {
        if (!modal.classList.contains('open')) return;
        if (e.key === 'Escape') { close(); return; }
        if (e.key === ' ' && document.activeElement === player) return; // native handling
        if (e.key === 'f' || e.key === 'F') toggleFullscreen();
    });
})();