"use strict";
(function () {
    'use strict';
    /* ── Background player ───────────────────────────────────── */
    const bgAudio = new Audio();
    let bgPlaying = false;
    let bgBar = null;
    let bgTitle = null;
    let bgPlayBtn = null;
    function createBgBar() {
        var _a;
        if (bgBar)
            return;
        bgBar = document.createElement('div');
        bgBar.id = 'bg-bar';
        bgBar.innerHTML =
            '<span id="bg-title"></span>' +
                '<button id="bg-play" aria-label="Abspielen">▶</button>' +
                '<button id="bg-close" aria-label="Schließen">✕</button>';
        document.body.appendChild(bgBar);
        bgTitle = document.getElementById('bg-title');
        bgPlayBtn = document.getElementById('bg-play');
        bgPlayBtn.addEventListener('click', function () {
            if (bgAudio.paused)
                void bgAudio.play();
            else
                bgAudio.pause();
        });
        (_a = document.getElementById('bg-close')) === null || _a === void 0 ? void 0 : _a.addEventListener('click', function () {
            bgAudio.pause();
            if (bgBar)
                bgBar.style.display = 'none';
        });
        bgAudio.addEventListener('play', function () { if (bgPlayBtn)
            bgPlayBtn.textContent = '⏸'; });
        bgAudio.addEventListener('pause', function () { if (bgPlayBtn)
            bgPlayBtn.textContent = '▶'; });
        bgAudio.addEventListener('ended', function () { if (bgPlayBtn)
            bgPlayBtn.textContent = '▶'; });
    }
    function sendToBg(src, title) {
        createBgBar();
        if (bgBar)
            bgBar.style.display = 'flex';
        bgAudio.src = src;
        if (bgTitle)
            bgTitle.textContent = title;
        void bgAudio.play();
    }
    // Attach "♪" button to every inline audio player
    document.querySelectorAll('audio.media-audio').forEach(function (a) {
        const btn = document.createElement('button');
        btn.className = 'btn-bg-music';
        btn.textContent = '♪ Hintergrundmusik';
        btn.type = 'button';
        const title = a.title || a.src.split('/').pop() || a.src;
        btn.addEventListener('click', function () { sendToBg(a.src, title); });
        a.insertAdjacentElement('afterend', btn);
    });
    /* ── Video autoplay + coordination ──────────────────────── */
    const obs = new IntersectionObserver(function (entries) {
        entries.forEach(function (e) {
            const v = e.target;
            if (e.isIntersecting) {
                void v.play();
            }
            else {
                v.pause();
            }
        });
    }, { threshold: 0.3 });
    document.querySelectorAll('video.media-embed').forEach(function (v) {
        v.muted = true;
        v.loop = true;
        v.setAttribute('playsinline', '');
        obs.observe(v);
        // User unmutes → pause background music
        v.addEventListener('volumechange', function () {
            if (!v.muted && !v.paused) {
                bgPlaying = !bgAudio.paused;
                bgAudio.pause();
            }
            // Video muted again → resume background
            if (v.muted && bgPlaying) {
                void bgAudio.play();
                bgPlaying = false;
            }
        });
        // Video pauses or ends → resume background if it was playing
        v.addEventListener('pause', function () {
            if (bgPlaying) {
                void bgAudio.play();
                bgPlaying = false;
            }
        });
        v.addEventListener('ended', function () {
            if (bgPlaying) {
                void bgAudio.play();
                bgPlaying = false;
            }
        });
    });
})();