{% extends "base.html" %}
{% block title %}Edit Adventure - {{ post.title }}{% endblock %}

{% block content %}
<div class="container-fluid">
    <div class="row">
        <!-- Form Section -->
        <div class="col-lg-8">
            <div class="card shadow-sm">
                <div class="card-header bg-primary text-white">
                    <h4 class="mb-0">
                        <i class="fas fa-edit"></i> Edit Your Adventure
                    </h4>
                </div>
                <div class="card-body">
                    <form id="editPostForm" method="POST" enctype="multipart/form-data" action="{{ url_for('community.edit_post', id=post.id) }}">
                        <!-- Title -->
                        <div class="mb-4">
                            <label for="title" class="form-label fw-bold">
                                <i class="fas fa-heading text-primary"></i> Adventure Title *
                            </label>
                            <input type="text" class="form-control form-control-lg" id="title" name="title" 
                                   value="{{ post.title }}" required maxlength="100"
                                   placeholder="Enter your adventure title">
                            <div class="form-text">Make it catchy and descriptive!</div>
                        </div>

                        <!-- Subtitle -->
                        <div class="mb-4">
                            <label for="subtitle" class="form-label fw-bold">
                                <i class="fas fa-text-height text-info"></i> Subtitle
                            </label>
                            <input type="text" class="form-control" id="subtitle" name="subtitle" 
                                   value="{{ post.subtitle or '' }}" maxlength="200"
                                   placeholder="A brief description of your adventure">
                            <div class="form-text">Optional - appears under the main title</div>
                        </div>

                        <!-- Difficulty Level -->
                        <div class="mb-4">
                            <label for="difficulty" class="form-label fw-bold">
                                <i class="fas fa-mountain text-warning"></i> Difficulty Level *
                            </label>
                            <select class="form-select" id="difficulty" name="difficulty" required>
                                <option value="">Select difficulty...</option>
                                <option value="1" {% if post.difficulty == 1 %}selected{% endif %}>⭐ Easy - Beginner friendly</option>
                                <option value="2" {% if post.difficulty == 2 %}selected{% endif %}>⭐⭐ Moderate - Some experience needed</option>
                                <option value="3" {% if post.difficulty == 3 %}selected{% endif %}>⭐⭐⭐ Challenging - Good skills required</option>
                                <option value="4" {% if post.difficulty == 4 %}selected{% endif %}>⭐⭐⭐⭐ Hard - Advanced riders only</option>
                                <option value="5" {% if post.difficulty == 5 %}selected{% endif %}>⭐⭐⭐⭐⭐ Expert - Extreme difficulty</option>
                            </select>
                        </div>

                        <!-- Current Cover Image -->
                        {% if post.images %}
                            {% set cover_image = post.images | selectattr('is_cover', 'equalto', True) | first %}
                            {% if cover_image %}
                            <div class="mb-4">
                                <label class="form-label fw-bold">
                                    <i class="fas fa-image text-success"></i> Current Cover Photo
                                </label>
                                <div class="current-cover-preview">
                                    <img src="{{ cover_image.get_thumbnail_url() }}" alt="Current cover" 
                                         class="img-thumbnail" style="max-width: 200px;">
                                    <small class="text-muted d-block mt-1">{{ cover_image.original_name }}</small>
                                </div>
                            </div>
                            {% endif %}
                        {% endif %}

                        <!-- Cover Photo Upload -->
                        <div class="mb-4">
                            <label for="cover_picture" class="form-label fw-bold">
                                <i class="fas fa-camera text-success"></i> 
                                {% if post.images and post.images | selectattr('is_cover', 'equalto', True) | first %}
                                    Replace Cover Photo
                                {% else %}
                                    Cover Photo
                                {% endif %}
                            </label>
                            <input type="file" class="form-control" id="cover_picture" name="cover_picture" 
                                   accept="image/*" onchange="previewCoverImage(this)">
                            <div class="form-text">
                                Optional - Upload a new cover photo to replace the current one
                            </div>
                            <div id="cover_preview" class="mt-2"></div>
                        </div>

                        <!-- Adventure Story/Content -->
                        <div class="mb-4">
                            <label for="content" class="form-label fw-bold">
                                <i class="fas fa-book text-primary"></i> Your Adventure Story *
                            </label>
                            <textarea class="form-control" id="content" name="content" rows="8" required
                                      placeholder="Tell us about your adventure... Where did you go? What did you see? Any challenges or highlights?">{{ post.content }}</textarea>
                            <div class="form-text">
                                <i class="fas fa-info-circle"></i> 
                                You can use **bold text** and *italic text* in your story!
                            </div>
                        </div>

                        <!-- Current GPX File -->
                        {% if post.gpx_files %}
                            <div class="mb-4">
                                <label class="form-label fw-bold">
                                    <i class="fas fa-route text-info"></i> Current GPS Track
                                </label>
                                {% for gpx_file in post.gpx_files %}
                                <div class="current-gpx-file border rounded p-3 bg-light">
                                    <div class="d-flex align-items-center">
                                        <i class="fas fa-file-alt text-info me-2"></i>
                                        <div>
                                            <strong>{{ gpx_file.original_name }}</strong>
                                            <small class="text-muted d-block">
                                                Size: {{ "%.1f"|format(gpx_file.size / 1024) }} KB
                                                • Uploaded: {{ gpx_file.created_at.strftime('%Y-%m-%d') }}
                                            </small>
                                        </div>
                                        <a href="{{ url_for('community.serve_gpx', post_folder=post.media_folder, filename=gpx_file.filename) }}" 
                                           class="btn btn-sm btn-outline-primary ms-auto">
                                            <i class="fas fa-download"></i> Download
                                        </a>
                                    </div>
                                </div>
                                {% endfor %}
                            </div>
                        {% endif %}

                        <!-- GPX File Upload -->
                        <div class="mb-4">
                            <label for="gpx_file" class="form-label fw-bold">
                                <i class="fas fa-route text-info"></i> 
                                {% if post.gpx_files %}
                                    Replace GPS Track File
                                {% else %}
                                    GPS Track File (GPX)
                                {% endif %}
                            </label>
                            <input type="file" class="form-control" id="gpx_file" name="gpx_file" 
                                   accept=".gpx" onchange="validateGpxFile(this)">
                            <div class="form-text">
                                Optional - Upload a new GPX file to replace the current route
                            </div>
                            <div id="gpx_info" class="mt-2"></div>
                        </div>

                        <!-- Submit Buttons -->
                        <div class="d-grid gap-2 d-md-flex justify-content-md-end">
                            <a href="{{ url_for('community.profile') }}" class="btn btn-secondary me-md-2">
                                <i class="fas fa-arrow-left"></i> Cancel
                            </a>
                            <button type="button" class="btn btn-info me-md-2" onclick="previewPost()">
                                <i class="fas fa-eye"></i> Preview Changes
                            </button>
                            <button type="submit" class="btn btn-success">
                                <i class="fas fa-paper-plane"></i> Update & Resubmit for Review
                            </button>
                        </div>
                    </form>
                </div>
            </div>
        </div>

        <!-- Info Panel -->
        <div class="col-lg-4">
            <div class="card shadow-sm">
                <div class="card-header bg-info text-white">
                    <h5 class="mb-0">
                        <i class="fas fa-info-circle"></i> Editing Guidelines
                    </h5>
                </div>
                <div class="card-body">
                    <div class="mb-3">
                        <h6><i class="fas fa-edit text-primary"></i> What happens after editing?</h6>
                        <p class="small">Your updated post will be resubmitted for admin review before being published again.</p>
                    </div>

                    <div class="mb-3">
                        <h6><i class="fas fa-image text-success"></i> Photo Guidelines</h6>
                        <ul class="small mb-0">
                            <li>Use high-quality images (JPEG, PNG)</li>
                            <li>Landscape orientation works best for cover photos</li>
                            <li>Maximum file size: 10MB</li>
                        </ul>
                    </div>

                    <div class="mb-3">
                        <h6><i class="fas fa-route text-info"></i> GPX File Tips</h6>
                        <ul class="small mb-0">
                            <li>Export from your GPS device or app</li>
                            <li>Should contain track points</li>
                            <li>Will be displayed on the community map</li>
                        </ul>
                    </div>

                    <div class="mb-3">
                        <h6><i class="fas fa-star text-warning"></i> Difficulty Levels</h6>
                        <div class="small">
                            <div><strong>Easy:</strong> Paved roads, good weather</div>
                            <div><strong>Moderate:</strong> Some gravel, hills</div>
                            <div><strong>Challenging:</strong> Off-road, technical</div>
                            <div><strong>Hard:</strong> Extreme conditions</div>
                            <div><strong>Expert:</strong> Dangerous, experts only</div>
                        </div>
                    </div>

                    <div class="alert alert-warning">
                        <i class="fas fa-exclamation-triangle"></i>
                        <strong>Note:</strong> Updating your post will reset its status to "pending review."
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Preview Modal -->
<div class="modal fade" id="previewModal" tabindex="-1" aria-labelledby="previewModalLabel" aria-hidden="true">
    <div class="modal-dialog modal-xl">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title" id="previewModalLabel">
                    <i class="fas fa-eye"></i> Post Preview
                </h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
            </div>
            <div class="modal-body">
                <div id="previewContent">
                    <!-- Preview content will be loaded here -->
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close Preview</button>
                <button type="button" class="btn btn-success" onclick="submitForm()">
                    <i class="fas fa-paper-plane"></i> Looks Good - Update Post
                </button>
            </div>
        </div>
    </div>
</div>

<!-- JavaScript -->
<script>
function previewCoverImage(input) {
    const preview = document.getElementById('cover_preview');
    preview.innerHTML = '';
    
    if (input.files && input.files[0]) {
        const reader = new FileReader();
        reader.onload = function(e) {
            preview.innerHTML = `
                <div class="mt-2">
                    <img src="${e.target.result}" alt="Cover preview" class="img-thumbnail" style="max-width: 200px;">
                    <small class="text-success d-block mt-1">✓ New cover photo ready</small>
                </div>
            `;
        };
        reader.readAsDataURL(input.files[0]);
    }
}

function validateGpxFile(input) {
    const info = document.getElementById('gpx_info');
    info.innerHTML = '';
    
    if (input.files && input.files[0]) {
        const file = input.files[0];
        if (file.name.toLowerCase().endsWith('.gpx')) {
            info.innerHTML = `
                <div class="alert alert-success">
                    <i class="fas fa-check-circle"></i>
                    GPX file selected: ${file.name} (${(file.size / 1024).toFixed(1)} KB)
                </div>
            `;
        } else {
            info.innerHTML = `
                <div class="alert alert-danger">
                    <i class="fas fa-exclamation-triangle"></i>
                    Please select a valid GPX file
                </div>
            `;
            input.value = '';
        }
    }
}

function previewPost() {
    // Get form data
    const title = document.getElementById('title').value;
    const subtitle = document.getElementById('subtitle').value;
    const content = document.getElementById('content').value;
    const difficulty = document.getElementById('difficulty').value;
    
    // Get difficulty stars
    const difficultyStars = '⭐'.repeat(difficulty);
    const difficultyLabels = {
        '1': 'Easy',
        '2': 'Moderate', 
        '3': 'Challenging',
        '4': 'Hard',
        '5': 'Expert'
    };
    
    // Format content (simple markdown-like formatting)
    const formattedContent = content
        .replace(/\*\*(.*?)\*\*/g, '<strong>$1</strong>')
        .replace(/\*(.*?)\*/g, '<em>$1</em>')
        .replace(/\n/g, '<br>');
    
    // Generate preview HTML
    const previewHTML = `
        <div class="post-preview">
            <!-- Hero Section -->
            <div class="hero-section bg-primary text-white p-4 rounded mb-4">
                <div class="container">
                    <h1 class="display-4 mb-2">${title || 'Your Adventure Title'}</h1>
                    ${subtitle ? `<p class="lead mb-3">${subtitle}</p>` : ''}
                    <div class="d-flex align-items-center">
                        <span class="badge bg-warning text-dark me-3">
                            ${difficultyStars} ${difficultyLabels[difficulty] || 'Select difficulty'}
                        </span>
                        <small>By {{ current_user.nickname }} • Updated today</small>
                    </div>
                </div>
            </div>
            
            <!-- Content Section -->
            <div class="container">
                <div class="row">
                    <div class="col-lg-8">
                        <div class="adventure-content">
                            <h3>Adventure Story</h3>
                            <div class="content-text">
                                ${formattedContent || '<em>No content provided yet...</em>'}
                            </div>
                        </div>
                    </div>
                    <div class="col-lg-4">
                        <div class="adventure-info">
                            <h5>Adventure Details</h5>
                            <ul class="list-unstyled">
                                <li><strong>Difficulty:</strong> ${difficultyStars} ${difficultyLabels[difficulty] || 'Not set'}</li>
                                <li><strong>Status:</strong> <span class="badge bg-warning">Pending Review</span></li>
                                <li><strong>Last Updated:</strong> Today</li>
                            </ul>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    `;
    
    // Show preview in modal
    document.getElementById('previewContent').innerHTML = previewHTML;
    const modal = new bootstrap.Modal(document.getElementById('previewModal'));
    modal.show();
}

function submitForm() {
    document.getElementById('editPostForm').submit();
}

// Form submission with AJAX
document.getElementById('editPostForm').addEventListener('submit', function(e) {
    e.preventDefault();
    
    const formData = new FormData(this);
    const submitButton = this.querySelector('button[type="submit"]');
    const originalText = submitButton.innerHTML;
    
    // Show loading state
    submitButton.innerHTML = '<i class="fas fa-spinner fa-spin"></i> Updating...';
    submitButton.disabled = true;
    
    fetch(this.action, {
        method: 'POST',
        body: formData
    })
    .then(response => response.json())
    .then(data => {
        if (data.success) {
            // Show success message
            const alert = document.createElement('div');
            alert.className = 'alert alert-success alert-dismissible fade show';
            alert.innerHTML = `
                <i class="fas fa-check-circle"></i> ${data.message}
                <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
            `;
            this.insertBefore(alert, this.firstChild);
            
            // Redirect after delay
            setTimeout(() => {
                window.location.href = data.redirect_url;
            }, 2000);
        } else {
            // Show error message
            const alert = document.createElement('div');
            alert.className = 'alert alert-danger alert-dismissible fade show';
            alert.innerHTML = `
                <i class="fas fa-exclamation-triangle"></i> ${data.error}
                <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
            `;
            this.insertBefore(alert, this.firstChild);
        }
    })
    .catch(error => {
        console.error('Error:', error);
        const alert = document.createElement('div');
        alert.className = 'alert alert-danger alert-dismissible fade show';
        alert.innerHTML = `
            <i class="fas fa-exclamation-triangle"></i> An error occurred while updating your post.
            <button type="button" class="btn-close" data-bs-dismiss="alert"></button>
        `;
        this.insertBefore(alert, this.firstChild);
    })
    .finally(() => {
        // Restore button state
        submitButton.innerHTML = originalText;
        submitButton.disabled = false;
    });
});
</script>
{% endblock %}