{% 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: 80px;
        text-align: center;
    }
</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" draggable="true" data-content-id="{{ content.id }}">
                    <td>
                        <span class="drag-handle">⋮⋮</span>
                    </td>
                    <td>{{ loop.index }}</td>
                    <td>{{ content.filename }}</td>
                    <td>
                        {% if content.content_type == 'image' %}📷 Image
                        {% elif content.content_type == 'video' %}🎥 Video
                        {% elif content.content_type == 'pdf' %}📄 PDF
                        {% else %}📁 {{ content.content_type }}
                        {% endif %}
                    </td>
                    <td>
                        <input type="number" 
                               class="form-control duration-input" 
                               value="{{ content.duration }}"
                               min="1"
                               onchange="updateDuration({{ content.id }}, this.value)">
                    </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_files %}
    <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="filename">Select File:</label>
                <select name="filename" id="filename" class="form-control" required>
                    <option value="" disabled selected>Choose a file...</option>
                    {% for filename in available_files %}
                    <option value="{{ filename }}">{{ filename }}</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;
    
    const rows = tbody.querySelectorAll('.draggable-row');
    
    rows.forEach(row => {
        row.addEventListener('dragstart', handleDragStart);
        row.addEventListener('dragover', handleDragOver);
        row.addEventListener('drop', handleDrop);
        row.addEventListener('dragend', handleDragEnd);
    });
});

function handleDragStart(e) {
    draggedElement = this;
    this.classList.add('dragging');
    e.dataTransfer.effectAllowed = 'move';
}

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 updateDuration(contentId, duration) {
    const formData = new FormData();
    formData.append('duration', duration);
    
    fetch(`{{ url_for("playlist.update_duration", player_id=player.id, content_id=0) }}`.replace('/0', `/${contentId}`), {
        method: 'POST',
        body: formData
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            console.log('Duration updated successfully');
            // Update total duration
            location.reload();
        } else {
            alert('Error updating duration: ' + data.message);
        }
    })
    .catch(error => {
        console.error('Error:', error);
        alert('Error updating duration');
    });
}
</script>

{% endblock %}