// Public Domain - Hauptlogik des Radioplayers (Schaltzentrale)

document.addEventListener('DOMContentLoaded', function () {
    // --- UI ELEMENTE ---
    const presetContainer = document.getElementById('preset-container');
    const stopButton = document.querySelector('.stop-button');
    const currentStationName = document.getElementById('current-station-name');
    const presetModal = document.getElementById('preset-modal');
    const tableBody = document.querySelector('#sortable-tbody');
    
    let currentSound = null;

    // --- INITIALISIERUNG ---
    if (window.UI) window.UI.initializeFooter();
    initializeEventListeners();

    // Manager verknüpfen
    if (window.SleepTimer) {
        window.SleepTimer.init(() => stopPlayback());
    }

    if (window.PresetManager) {
        window.PresetManager.load((loadedPresets) => {
            displayPresets(loadedPresets);
            initSortable();
        });
    }

    // --- EVENT LISTENER ---
    function initializeEventListeners() {
        // Stop Button
        if (stopButton) {
            stopButton.onclick = stopPlayback;
        }
        
        // Preset Modal öffnen
        const editBtn = document.getElementById('edit-presets-button');
        if (editBtn) {
            editBtn.onclick = openPresetModal;
        }

        // Sleep Timer Modal öffnen
        const sleepBtn = document.getElementById('open-sleep-timer-modal');
        if (sleepBtn) {
            sleepBtn.onclick = openSleepModal;
        }
        
        // Sleep Timer Modal schließen (X-Button)
        const closeSleepBtn = document.getElementById('close-sleep-timer-modal');
        if (closeSleepBtn) {
            closeSleepBtn.onclick = () => {
                const sm = document.getElementById('sleep-timer-modal');
                sm.classList.add('hidden');
                sm.style.display = 'none';
            };
        }
        
        // Sleep Timer wirklich ausschalten
        const offSleepBtn = document.getElementById('off-sleep-timer-modal');
        if (offSleepBtn) {
            offSleepBtn.onclick = () => {
                if (window.SleepTimer) {
                    window.SleepTimer.clear(); // Stoppt den Timeout und resettet die UI
                }
                const sm = document.getElementById('sleep-timer-modal');
                if (sm) {
                    sm.classList.add('hidden');
                    sm.style.display = 'none';
                }
            };
        }

        // Zeit-Optionen im Sleep Timer
        document.querySelectorAll('.time-option').forEach(btn => {
            btn.onclick = () => {
                const minutes = parseInt(btn.getAttribute('data-time')) / 60000;
                window.SleepTimer.start(minutes);
                const sm = document.getElementById('sleep-timer-modal');
                sm.classList.add('hidden');
                sm.style.display = 'none';
            };
        });
    }

    // --- PLAYER LOGIK ---
    function playStream(url, item) {
        stopPlayback();
        if (window.MetaHandler) window.MetaHandler.stop();

        currentSound = new Howl({
            src: [url],
            html5: true,
            volume: 0.5,
            onplay: () => {
                stopButton.classList.remove('hidden');
                const stationName = item.querySelector('h3').textContent;
                if (window.UI) window.UI.updateDocumentTitle(stationName);
                currentStationName.textContent = 'Es läuft: ' + stationName;
                if (window.MetaHandler) window.MetaHandler.start(url);
            },
            onstop: () => {
                stopButton.classList.add('hidden');
                currentStationName.textContent = 'Wähle einen Sender aus';
                if (window.UI) window.UI.updateDocumentTitle('');
                if (window.MetaHandler) window.MetaHandler.stop();
            }
        });
        currentSound.play();
    }

    function stopPlayback() {
        if (currentSound) {
            currentSound.stop();
            currentSound = null;
        }
    }

    // --- PRESET UI ---
    function displayPresets(presets) {
        presetContainer.innerHTML = '';
        presets.forEach(preset => {
            const presetItem = document.createElement('div');
            presetItem.classList.add('preset-item');
            presetItem.innerHTML = `<h3>${preset.name}</h3>`;
            presetItem.onclick = () => playStream(preset.url, presetItem);
            presetContainer.appendChild(presetItem);
        });
    }

    function renderPresetsTable() {
        if (!tableBody) return;
        tableBody.innerHTML = '';
        window.PresetManager.presets.forEach((preset, index) => {
            const row = document.createElement('tr');
            row.setAttribute('data-index', index);
            row.innerHTML = `
                <td class="drag-handle">☰</td>
                <td><input type="text" value="${preset.name}" onchange="changeName(${index}, this.value)"></td>
                <td><input type="text" value="${preset.url}" onchange="changeURL(${index}, this.value)"></td>
                <td><button class="delete-btn" onclick="deletePreset(${index})"><i class="fas fa-trash-alt"></i></button></td>
            `;
            tableBody.appendChild(row);
        });
    }

    // --- MODAL WRAPPER ---
    function openPresetModal() {
        if (!presetModal) return;
        presetModal.classList.remove('hidden');
        presetModal.style.display = 'block';
        renderPresetsTable();
        if (window.PresetManager) window.PresetManager.generateExportCode();
    }

    function openSleepModal() {
        const sm = document.getElementById('sleep-timer-modal');
        if (sm) {
            sm.classList.remove('hidden');
            sm.style.display = 'block';
            if (window.SleepTimer) window.SleepTimer.updateButtonUI();
        }
    }

    // --- GLOBALE HELFER (für HTML onclicks & Manager) ---
    window.closeModal = () => {
        if (presetModal) {
            presetModal.classList.add('hidden');
            presetModal.style.display = 'none';
        }
    };
    
    window.addPreset = () => {
        window.PresetManager.presets.push({ name: 'Neuer Sender', url: '' });
        renderPresetsTable();
    };

    window.deletePreset = (index) => {
        window.UI.showConfirm("Löschen", "Sender wirklich entfernen?", (conf) => {
            if (conf) {
                window.PresetManager.presets.splice(index, 1);
                renderPresetsTable();
                window.PresetManager.generateExportCode();
            }
        });
    };

    window.saveAndClose = () => {
        window.PresetManager.save();
        location.reload();
    };

    window.changeName = (i, v) => {
        window.PresetManager.presets[i].name = v;
        window.PresetManager.generateExportCode();
    };

    window.changeURL = (i, v) => {
        window.PresetManager.presets[i].url = v;
        window.PresetManager.generateExportCode();
    };
    
    window.exportPreset = () => window.PresetManager.exportToFile();

    window.importPreset = () => {
        window.UI.showConfirm("Vorsicht", "Alle Sender werden überschrieben!", (conf) => {
            if (conf) {
                const input = document.createElement('input');
                input.type = 'file';
                input.accept = 'application/json';
                input.onchange = e => {
                    const reader = new FileReader();
                    reader.onload = ev => {
                        try {
                            window.PresetManager.presets = JSON.parse(ev.target.result);
                            window.PresetManager.save();
                            location.reload();
                        } catch (err) { window.UI.showAlert("Fehler", "Ungültige Datei."); }
                    };
                    reader.readAsText(e.target.files[0]);
                };
                input.click();
            }
        });
    };

    window.importFromString = () => {
        const field = document.getElementById('import-string-field');
        const code = field ? field.value.trim() : "";
        if (!code) return window.UI.showAlert("Fehler", "Bitte Code einfügen.");
        window.UI.showConfirm("Vorsicht", "Alle Sender werden überschrieben!", (conf) => {
            if (conf) window.PresetManager.importFromString(code);
        });
    };

    function initSortable() {
        if (!tableBody) return;
        new Sortable(tableBody, {
            handle: '.drag-handle',
            animation: 150,
            onEnd: () => {
                const newOrder = Array.from(tableBody.children).map(row => parseInt(row.getAttribute('data-index')));
                window.PresetManager.presets = newOrder.map(index => window.PresetManager.presets[index]);
                window.PresetManager.generateExportCode();
            }
        });
    }
});