{% extends "base.html" %}

{% block title %}Manage Playlist - {{ player.name }} - DigiServer v2{% endblock %}

{% block content %}
<style>
    .playlist-container {
        max-width: 1200px;
        margin: 0 auto;
    }
    
    .player-info-card {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        padding: 25px;
        border-radius: 12px;
        margin-bottom: 25px;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }
    
    .player-info-card h1 {
        margin: 0 0 10px 0;
        font-size: 28px;
    }
    
    .player-info-card p {
        margin: 5px 0;
        opacity: 0.9;
    }
    
    .playlist-section {
        background: white;
        border-radius: 12px;
        padding: 25px;
        margin-bottom: 25px;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }
    
    .section-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 20px;
        padding-bottom: 15px;
        border-bottom: 2px solid #f0f0f0;
    }
    
    .section-header h2 {
        margin: 0;
        font-size: 24px;
        color: #333;
    }
    
    .playlist-table {
        width: 100%;
        border-collapse: collapse;
    }
    
    .playlist-table thead {
        background: #f8f9fa;
    }
    
    .playlist-table th {
        padding: 12px;
        text-align: left;
        font-weight: 600;
        color: #555;
        border-bottom: 2px solid #dee2e6;
    }
    
    .playlist-table td {
        padding: 12px;
        border-bottom: 1px solid #dee2e6;
    }
    
    .playlist-table tr:hover {
        background: #f8f9fa;
    }
    
    .draggable-row {
        cursor: move;
    }
    
    .draggable-row.dragging {
        opacity: 0.5;
    }
    
    .drag-handle {
        cursor: grab;
        font-size: 18px;
        color: #999;
        padding-right: 10px;
    }
    
    .drag-handle:active {
        cursor: grabbing;
    }
    
    .btn {
        padding: 8px 16px;
        border-radius: 6px;
        border: none;
        cursor: pointer;
        font-size: 14px;
        font-weight: 500;
        text-decoration: none;
        display: inline-block;
        transition: all 0.2s;
    }
    
    .btn-primary {
        background: #667eea;
        color: white;
    }
    
    .btn-primary:hover {
        background: #5568d3;
    }
    
    .btn-success {
        background: #28a745;
        color: white;
    }
    
    .btn-success:hover {
        background: #218838;
    }
    
    .btn-danger {
        background: #dc3545;
        color: white;
    }
    
    .btn-danger:hover {
        background: #c82333;
    }
    
    .btn-secondary {
        background: #6c757d;
        color: white;
    }
    
    .btn-secondary:hover {
        background: #5a6268;
    }
    
    .btn-sm {
        padding: 5px 10px;
        font-size: 12px;
    }
    
    .add-content-form {
        background: #f8f9fa;
        padding: 20px;
        border-radius: 8px;
        margin-top: 20px;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
    
    .form-group label {
        display: block;
        font-weight: 600;
        margin-bottom: 5px;
        color: #333;
    }
    
    .form-control {
        width: 100%;
        padding: 10px;
        border: 1px solid #ced4da;
        border-radius: 6px;
        font-size: 14px;
    }
    
    .form-control:focus {
        outline: none;
        border-color: #667eea;
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    }
    
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
        margin-top: 15px;
    }
    
    .stat-item {
        background: rgba(255, 255, 255, 0.2);
        padding: 12px;
        border-radius: 8px;
    }
    
    .stat-label {
        font-size: 12px;
        opacity: 0.9;
        margin-bottom: 5px;
    }
    
    .stat-value {
        font-size: 24px;
        font-weight: bold;
    }
    
    .empty-state {
        text-align: center;
        padding: 40px;
        color: #999;
    }
    
    .empty-state-icon {
        font-size: 48px;
        margin-bottom: 15px;
    }
    
    .duration-input {
        width: 70px !important;
        padding: 5px 8px !important;
        text-align: center;
        transition: all 0.3s ease;
        background: white !important;
        border: 2px solid #ced4da !important;
        border-radius: 6px;
        font-size: 14px;
        font-weight: 500;
    }
    
    .duration-input:hover {
        border-color: #667eea !important;
        box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.1);
    }
    
    .duration-input:focus {
        border-color: #667eea !important;
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
        background: white !important;
        outline: none;
    }
    
    .save-duration-btn {
        transition: all 0.2s ease;
        animation: fadeIn 0.2s ease;
    }
    
    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: scale(0.8);
        }
        to {
            opacity: 1;
            transform: scale(1);
        }
    }
    
    .content-type-badge {
        display: inline-block;
        padding: 4px 8px;
        border-radius: 4px;
        font-size: 12px;
        font-weight: 600;
    }
    
    .badge-image {
        background: #e3f2fd;
        color: #1976d2;
    }
    
    .badge-video {
        background: #f3e5f5;
        color: #7b1fa2;
    }
    
    .badge-pdf {
        background: #ffebee;
        color: #c62828;
    }
    
    /* Dark mode support */
    body.dark-mode .playlist-section {
        background: #2d3748;
        color: #e2e8f0;
    }
    
    body.dark-mode .section-header h2 {
        color: #e2e8f0;
    }
    
    body.dark-mode .section-header {
        border-bottom-color: #4a5568;
    }
    
    body.dark-mode .playlist-table thead {
        background: #1a202c;
    }
    
    body.dark-mode .playlist-table th {
        color: #cbd5e0;
        border-bottom-color: #4a5568;
    }
    
    body.dark-mode .playlist-table td {
        border-bottom-color: #4a5568;
        color: #e2e8f0;
    }
    
    body.dark-mode .playlist-table tr:hover {
        background: #1a202c;
    }
    
    body.dark-mode .form-control {
        background: #1a202c;
        border-color: #4a5568;
        color: #e2e8f0;
    }
    
    body.dark-mode .form-control:focus {
        border-color: #667eea;
        background: #2d3748;
    }
    
    body.dark-mode .add-content-form {
        background: #1a202c;
    }
    
    body.dark-mode .form-group label {
        color: #e2e8f0;
    }
    
    body.dark-mode .empty-state {
        color: #718096;
    }
    
    body.dark-mode .drag-handle {
        color: #718096;
    }
    
    body.dark-mode .duration-input {
        background: #1a202c !important;
        border-color: #4a5568 !important;
        color: #e2e8f0 !important;
    }
    
    body.dark-mode .duration-input:hover {
        border-color: #667eea !important;
        box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.2);
    }
    
    body.dark-mode .duration-input:focus {
        background: #2d3748 !important;
        border-color: #667eea !important;
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3);
    }
    
    body.dark-mode .badge-image {
        background: #1e3a5f;
        color: #64b5f6;
    }
    
    body.dark-mode .badge-video {
        background: #4a1e5a;
        color: #ce93d8;
    }
    
    body.dark-mode .badge-pdf {
        background: #5a1e1e;
        color: #ef5350;
    }
</style>

<div class="playlist-container">
    <!-- Player Info Card -->
    <div class="player-info-card">
        <h1>🎬 {{ player.name }}</h1>
        <p>📍 {{ player.location or 'No location' }}</p>
        <p>🖥️ Hostname: {{ player.hostname }}</p>
        <p>📊 Status: {{ '🟢 Online' if player.is_online else '🔴 Offline' }}</p>
        
        <div class="stats-grid">
            <div class="stat-item">
                <div class="stat-label">Playlist Items</div>
                <div class="stat-value">{{ playlist_content|length }}</div>
            </div>
            <div class="stat-item">
                <div class="stat-label">Playlist Version</div>
                <div class="stat-value">{{ player.playlist_version }}</div>
            </div>
            <div class="stat-item">
                <div class="stat-label">Total Duration</div>
                <div class="stat-value">{{ playlist_content|sum(attribute='duration') }}s</div>
            </div>
        </div>
    </div>

    <!-- Action Buttons -->
    <div style="margin-bottom: 20px; display: flex; gap: 10px;">
        <a href="{{ url_for('players.player_page', player_id=player.id) }}" class="btn btn-secondary">
            ← Back to Player
        </a>
        <a href="{{ url_for('content.upload_content', player_id=player.id, return_url=url_for('playlist.manage_playlist', player_id=player.id)) }}" 
           class="btn btn-success">
            ➕ Upload New Content
        </a>
        {% if playlist_content %}
        <form method="POST" action="{{ url_for('playlist.clear_playlist', player_id=player.id) }}" 
              style="display: inline;"
              onsubmit="return confirm('Are you sure you want to clear the entire playlist?');">
            <button type="submit" class="btn btn-danger">
                🗑️ Clear Playlist
            </button>
        </form>
        {% endif %}
    </div>

    <!-- Current Playlist -->
    <div class="playlist-section">
        <div class="section-header">
            <h2>📋 Current Playlist</h2>
            <span style="color: #999; font-size: 14px;">
                Drag and drop to reorder
            </span>
        </div>

        {% if playlist_content %}
        <table class="playlist-table" id="playlist-table">
            <thead>
                <tr>
                    <th style="width: 40px;"></th>
                    <th style="width: 50px;">#</th>
                    <th>Filename</th>
                    <th style="width: 100px;">Type</th>
                    <th style="width: 120px;">Duration (s)</th>
                    <th style="width: 100px;">Size</th>
                    <th style="width: 150px;">Actions</th>
                </tr>
            </thead>
            <tbody id="playlist-tbody">
                {% for content in playlist_content %}
                <tr class="draggable-row" data-content-id="{{ content.id }}">
                    <td>
                        <span class="drag-handle" draggable="true">⋮⋮</span>
                    </td>
                    <td>{{ loop.index }}</td>
                    <td>{{ content.filename }}</td>
                    <td>
                        {% if content.content_type == 'image' %}
                        <span class="content-type-badge badge-image">📷 Image</span>
                        {% elif content.content_type == 'video' %}
                        <span class="content-type-badge badge-video">🎥 Video</span>
                        {% elif content.content_type == 'pdf' %}
                        <span class="content-type-badge badge-pdf">📄 PDF</span>
                        {% else %}
                        <span class="content-type-badge">📁 {{ content.content_type }}</span>
                        {% endif %}
                    </td>
                    <td>
                        <div style="display: flex; align-items: center; gap: 5px;">
                            <input type="number" 
                                   class="form-control duration-input" 
                                   id="duration-{{ content.id }}"
                                   value="{{ content._playlist_duration }}"
                                   min="1"
                                   draggable="false"
                                   onclick="event.stopPropagation()"
                                   onmousedown="event.stopPropagation()"
                                   oninput="markDurationChanged({{ content.id }})"
                                   onkeypress="if(event.key==='Enter') saveDuration({{ content.id }})">
                            <button type="button" 
                                    class="btn btn-success btn-sm save-duration-btn" 
                                    id="save-btn-{{ content.id }}"
                                    onclick="event.stopPropagation(); saveDuration({{ content.id }})"
                                    onmousedown="event.stopPropagation()"
                                    style="display: none;"
                                    title="Save duration (or press Enter)">
                                💾
                            </button>
                        </div>
                    </td>
                    <td>{{ "%.2f"|format(content.file_size_mb) }} MB</td>
                    <td>
                        <form method="POST" 
                              action="{{ url_for('playlist.remove_from_playlist', player_id=player.id, content_id=content.id) }}"
                              style="display: inline;"
                              onsubmit="return confirm('Remove {{ content.filename }} from playlist?');">
                            <button type="submit" class="btn btn-danger btn-sm">
                                ✕ Remove
                            </button>
                        </form>
                    </td>
                </tr>
                {% endfor %}
            </tbody>
        </table>
        {% else %}
        <div class="empty-state">
            <div class="empty-state-icon">📭</div>
            <h3>No content in playlist</h3>
            <p>Upload content or add existing files to get started</p>
        </div>
        {% endif %}
    </div>

    <!-- Add Content Section -->
    {% if available_content %}
    <div class="playlist-section">
        <div class="section-header">
            <h2>➕ Add Existing Content</h2>
        </div>

        <form method="POST" action="{{ url_for('playlist.add_to_playlist', player_id=player.id) }}" 
              class="add-content-form">
            <div class="form-group">
                <label for="content_id">Select Content:</label>
                <select name="content_id" id="content_id" class="form-control" required>
                    <option value="" disabled selected>Choose content...</option>
                    {% for content in available_content %}
                    <option value="{{ content.id }}">{{ content.filename }} ({{ content.content_type }})</option>
                    {% endfor %}
                </select>
            </div>
            
            <div class="form-group">
                <label for="duration">Display Duration (seconds):</label>
                <input type="number" 
                       name="duration" 
                       id="duration" 
                       class="form-control" 
                       value="10" 
                       min="1"
                       required>
            </div>
            
            <button type="submit" class="btn btn-success">
                ➕ Add to Playlist
            </button>
        </form>
    </div>
    {% endif %}
</div>

<script>
let draggedElement = null;

// Initialize drag and drop
document.addEventListener('DOMContentLoaded', function() {
    const tbody = document.getElementById('playlist-tbody');
    if (!tbody) return;
    
    // Set up drag handles
    const dragHandles = tbody.querySelectorAll('.drag-handle');
    dragHandles.forEach(handle => {
        handle.addEventListener('dragstart', handleDragStart);
    });
    
    // Set up drop zones on rows
    const rows = tbody.querySelectorAll('.draggable-row');
    rows.forEach(row => {
        row.addEventListener('dragover', handleDragOver);
        row.addEventListener('drop', handleDrop);
        row.addEventListener('dragend', handleDragEnd);
    });
    
    // Prevent dragging from inputs and buttons
    const inputs = document.querySelectorAll('.duration-input, button');
    inputs.forEach(input => {
        input.addEventListener('mousedown', (e) => {
            e.stopPropagation();
        });
        input.addEventListener('click', (e) => {
            e.stopPropagation();
        });
    });
});

function handleDragStart(e) {
    // Get the parent row
    const row = e.target.closest('.draggable-row');
    if (!row) return;
    
    draggedElement = row;
    row.classList.add('dragging');
    e.dataTransfer.effectAllowed = 'move';
    e.dataTransfer.setData('text/html', row.innerHTML);
}

function handleDragOver(e) {
    if (e.preventDefault) {
        e.preventDefault();
    }
    e.dataTransfer.dropEffect = 'move';
    return false;
}

function handleDrop(e) {
    if (e.stopPropagation) {
        e.stopPropagation();
    }
    
    if (draggedElement !== this) {
        const tbody = document.getElementById('playlist-tbody');
        const allRows = [...tbody.querySelectorAll('.draggable-row')];
        const draggedIndex = allRows.indexOf(draggedElement);
        const targetIndex = allRows.indexOf(this);
        
        if (draggedIndex < targetIndex) {
            this.parentNode.insertBefore(draggedElement, this.nextSibling);
        } else {
            this.parentNode.insertBefore(draggedElement, this);
        }
        
        updateRowNumbers();
        saveOrder();
    }
    
    return false;
}

function handleDragEnd(e) {
    this.classList.remove('dragging');
}

function updateRowNumbers() {
    const rows = document.querySelectorAll('#playlist-tbody tr');
    rows.forEach((row, index) => {
        row.querySelector('td:nth-child(2)').textContent = index + 1;
    });
}

function saveOrder() {
    const rows = document.querySelectorAll('#playlist-tbody .draggable-row');
    const contentIds = Array.from(rows).map(row => parseInt(row.dataset.contentId));
    
    fetch('{{ url_for("playlist.reorder_playlist", player_id=player.id) }}', {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
        },
        body: JSON.stringify({ content_ids: contentIds })
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            console.log('Playlist reordered successfully');
        } else {
            alert('Error reordering playlist: ' + data.message);
        }
    })
    .catch(error => {
        console.error('Error:', error);
        alert('Error reordering playlist');
    });
}

function markDurationChanged(contentId) {
    const saveBtn = document.getElementById(`save-btn-${contentId}`);
    const input = document.getElementById(`duration-${contentId}`);
    
    // Show save button if value changed
    if (input.value !== input.defaultValue) {
        saveBtn.style.display = 'inline-block';
        input.style.borderColor = '#ffc107';
    } else {
        saveBtn.style.display = 'none';
        input.style.borderColor = '';
    }
}

function saveDuration(contentId) {
    const inputElement = document.getElementById(`duration-${contentId}`);
    const saveBtn = document.getElementById(`save-btn-${contentId}`);
    const duration = parseInt(inputElement.value);
    
    // Validate duration
    if (duration < 1) {
        alert('Duration must be at least 1 second');
        inputElement.value = inputElement.defaultValue;
        inputElement.style.borderColor = '';
        saveBtn.style.display = 'none';
        return;
    }
    
    const originalValue = inputElement.defaultValue;
    
    // Visual feedback
    inputElement.disabled = true;
    saveBtn.disabled = true;
    saveBtn.textContent = '⏳';
    
    const formData = new FormData();
    formData.append('duration', duration);
    
    const playerId = {{ player.id }};
    const url = `/playlist/${playerId}/update-duration/${contentId}`;
    
    fetch(url, {
        method: 'POST',
        body: formData
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            console.log('Duration updated successfully');
            inputElement.style.borderColor = '#28a745';
            inputElement.defaultValue = duration;
            saveBtn.textContent = '✓';
            
            // Update total duration display
            updateTotalDuration();
            
            setTimeout(() => {
                inputElement.style.borderColor = '';
                inputElement.disabled = false;
                saveBtn.style.display = 'none';
                saveBtn.textContent = '💾';
                saveBtn.disabled = false;
            }, 1500);
        } else {
            inputElement.style.borderColor = '#dc3545';
            inputElement.value = originalValue;
            saveBtn.textContent = '✖';
            alert('Error updating duration: ' + data.message);
            
            setTimeout(() => {
                inputElement.disabled = false;
                inputElement.style.borderColor = '';
                saveBtn.style.display = 'none';
                saveBtn.textContent = '💾';
                saveBtn.disabled = false;
            }, 1500);
        }
    })
    .catch(error => {
        console.error('Error:', error);
        inputElement.style.borderColor = '#dc3545';
        inputElement.value = originalValue;
        saveBtn.textContent = '✖';
        alert('Error updating duration');
        
        setTimeout(() => {
            inputElement.disabled = false;
            inputElement.style.borderColor = '';
            saveBtn.style.display = 'none';
            saveBtn.textContent = '💾';
            saveBtn.disabled = false;
        }, 1500);
    });
}

function updateTotalDuration() {
    const durationInputs = document.querySelectorAll('.duration-input');
    let total = 0;
    durationInputs.forEach(input => {
        total += parseInt(input.value) || 0;
    });
    
    const statValues = document.querySelectorAll('.stat-value');
    statValues.forEach((element, index) => {
        const label = element.parentElement.querySelector('.stat-label');
        if (label && label.textContent.includes('Total Duration')) {
            element.textContent = total + 's';
        }
    });
}
</script>

{% endblock %}