@extends('layouts.modern')

@section('page-title', 'Edit Section')

@section('breadcrumb')
    <li class="breadcrumb-item"><a href="{{ url('/') }}">Home</a></li>
    <li class="breadcrumb-item"><a href="{{ route('data-management.data-types.index') }}">Data Management</a></li>
    <li class="breadcrumb-item"><a href="{{ route('data-management.data-types.index') }}">Data Types</a></li>
    <li class="breadcrumb-item"><a href="{{ route('data-management.data-types.show', $dataType) }}">{{ $dataType->name }}</a></li>
    <li class="breadcrumb-item"><a href="{{ route('data-management.data-types.sections.index', $dataType) }}">Sections</a></li>
    <li class="breadcrumb-item"><a href="{{ route('data-management.data-types.sections.show', [$dataType, $section]) }}">{{ $section->name }}</a></li>
    <li class="breadcrumb-item active">Edit</li>
@endsection

@section('action-buttons')
    <a href="{{ route('data-management.data-types.sections.show', [$dataType, $section]) }}" class="btn btn-outline-secondary">
        <i class="fas fa-arrow-left"></i>
        Back to Section
    </a>
@endsection

@section('content')
    <!-- Data Type Info -->
    <div class="card mb-3">
        <div class="card-body py-3">
            <div class="d-flex align-items-center">
                @if($dataType->icon)
                    <i class="{{ $dataType->icon }} me-2" style="color: var(--primary-color);"></i>
                @endif
                <div>
                    <h6 class="mb-0">{{ $dataType->name }}</h6>
                    <small style="color: var(--text-muted);">Editing section: {{ $section->name }}</small>
                </div>
            </div>
        </div>
    </div>

    <div class="row">
        <div class="col-lg-8 mx-auto">
            <div class="card">
                <div class="card-header">
                    <div class="d-flex align-items-center">
                        <i class="fas fa-edit me-2" style="color: var(--primary-color);"></i>
                        <h5 class="mb-0">Edit Section</h5>
                    </div>
                </div>
                <div class="card-body">
                    <form action="{{ route('data-management.data-types.sections.update', [$dataType, $section]) }}" method="POST">
                        @csrf
                        @method('PUT')
                        
                        <!-- Basic Information Section -->
                        <div class="row mb-4">
                            <div class="col-12">
                                <h6 class="border-bottom pb-2 mb-3" style="color: var(--text-primary);">
                                    <i class="fas fa-info-circle me-1"></i>
                                    Basic Information
                                </h6>
                            </div>
                            
                            <div class="col-md-6 mb-3">
                                <label for="name" class="form-label">
                                    Name <span class="text-danger">*</span>
                                </label>
                                <input type="text" class="form-control @error('name') is-invalid @enderror" 
                                    id="name" name="name" value="{{ old('name', $section->name) }}" 
                                    placeholder="e.g., Basic Information, Advanced Settings" required>
                                @error('name')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                                <div class="form-text">Display name for this section</div>
                            </div>
                            
                            <div class="col-md-6 mb-3">
                                <label for="slug" class="form-label">Slug</label>
                                <input type="text" class="form-control @error('slug') is-invalid @enderror" 
                                    id="slug" name="slug" value="{{ old('slug', $section->slug) }}" 
                                    placeholder="auto-generated from name">
                                @error('slug')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                                <div class="form-text">URL-friendly identifier (auto-generated if left empty)</div>
                            </div>
                            
                            <div class="col-12 mb-3">
                                <label for="description" class="form-label">Description</label>
                                <textarea class="form-control @error('description') is-invalid @enderror" 
                                    id="description" name="description" rows="3" 
                                    placeholder="Describe what fields this section will contain...">{{ old('description', $section->description) }}</textarea>
                                @error('description')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                            </div>
                            
                            <div class="col-md-6 mb-3">
                                <label for="icon" class="form-label">Icon</label>
                                <div class="input-group">
                                    <span class="input-group-text">
                                        <i class="{{ $section->icon ?: 'fas fa-layer-group' }}" id="icon-preview"></i>
                                    </span>
                                    <input type="text" class="form-control @error('icon') is-invalid @enderror" 
                                        id="icon" name="icon" value="{{ old('icon', $section->icon) }}" 
                                        placeholder="fas fa-layer-group">
                                </div>
                                @error('icon')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                                <div class="form-text">FontAwesome icon class (e.g., fas fa-layer-group)</div>
                            </div>
                        </div>

                        <!-- Layout Configuration Section -->
                        <div class="row mb-4">
                            <div class="col-12">
                                <h6 class="border-bottom pb-2 mb-3" style="color: var(--text-primary);">
                                    <i class="fas fa-layout me-1"></i>
                                    Layout Configuration
                                </h6>
                            </div>
                            
                            <div class="col-md-6 mb-3">
                                <label for="width_class" class="form-label">
                                    Section Width <span class="text-danger">*</span>
                                </label>
                                <select class="form-select @error('width_class') is-invalid @enderror" 
                                    id="width_class" name="width_class" required>
                                    <option value="col-12" {{ old('width_class', $section->width_class) == 'col-12' ? 'selected' : '' }}>
                                        Full Width (12 columns)
                                    </option>
                                    <option value="col-6" {{ old('width_class', $section->width_class) == 'col-6' ? 'selected' : '' }}>
                                        Half Width (6 columns)
                                    </option>
                                    <option value="col-8" {{ old('width_class', $section->width_class) == 'col-8' ? 'selected' : '' }}>
                                        Two-thirds Width (8 columns)
                                    </option>
                                    <option value="col-4" {{ old('width_class', $section->width_class) == 'col-4' ? 'selected' : '' }}>
                                        One-third Width (4 columns)
                                    </option>
                                </select>
                                @error('width_class')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                                <div class="form-text">How wide this section should be in the form layout</div>
                            </div>
                            
                            <div class="col-md-6 mb-3">
                                <label for="order" class="form-label">Display Order</label>
                                <input type="number" class="form-control @error('order') is-invalid @enderror" 
                                    id="order" name="order" value="{{ old('order', $section->order) }}" 
                                    min="0" step="1">
                                @error('order')
                                    <div class="invalid-feedback">{{ $message }}</div>
                                @enderror
                                <div class="form-text">Lower numbers appear first (0 = auto-assign to end)</div>
                            </div>
                        </div>

                        <!-- Behavior Configuration Section -->
                        <div class="row mb-4">
                            <div class="col-12">
                                <h6 class="border-bottom pb-2 mb-3" style="color: var(--text-primary);">
                                    <i class="fas fa-cog me-1"></i>
                                    Behavior Configuration
                                </h6>
                            </div>
                            
                            <div class="col-md-6 mb-3">
                                <div class="form-check form-switch">
                                    <input class="form-check-input" type="checkbox" id="collapsible" 
                                        name="collapsible" value="1" {{ old('collapsible', $section->collapsible) ? 'checked' : '' }}>
                                    <label class="form-check-label" for="collapsible">
                                        Collapsible Section
                                    </label>
                                </div>
                                <div class="form-text">Allow users to collapse/expand this section</div>
                            </div>
                            
                            <div class="col-md-6 mb-3" id="collapsed-option" style="display: {{ old('collapsible', $section->collapsible) ? 'block' : 'none' }};">
                                <div class="form-check form-switch">
                                    <input class="form-check-input" type="checkbox" id="collapsed_by_default" 
                                        name="collapsed_by_default" value="1" {{ old('collapsed_by_default', $section->collapsed_by_default) ? 'checked' : '' }}>
                                    <label class="form-check-label" for="collapsed_by_default">
                                        Collapsed by Default
                                    </label>
                                </div>
                                <div class="form-text">Start with this section collapsed</div>
                            </div>
                        </div>

                        <!-- Changes Warning -->
                        @if($section->fields && $section->fields->count() > 0)
                            <div class="alert alert-info mb-4">
                                <div class="d-flex align-items-start">
                                    <i class="fas fa-info-circle me-2 mt-1"></i>
                                    <div>
                                        <h6 class="mb-1">Section Contains Fields</h6>
                                        <p class="mb-0">
                                            This section contains {{ $section->fields->count() }} field(s). 
                                            Layout changes may affect how these fields are displayed in forms.
                                        </p>
                                    </div>
                                </div>
                            </div>
                        @endif

                        <!-- Preview Section -->
                        <div class="row mb-4">
                            <div class="col-12">
                                <h6 class="border-bottom pb-2 mb-3" style="color: var(--text-primary);">
                                    <i class="fas fa-eye me-1"></i>
                                    Preview
                                </h6>
                                <div class="card" style="background-color: var(--bs-light);">
                                    <div class="card-body">
                                        <div class="row">
                                            <div id="preview-container" class="{{ old('width_class', $section->width_class) }}">
                                                <div class="card">
                                                    <div class="card-header" id="preview-header">
                                                        <div class="d-flex align-items-center justify-content-between">
                                                            <div class="d-flex align-items-center">
                                                                <i class="{{ old('icon', $section->icon) ?: 'fas fa-layer-group' }} me-2" id="preview-icon"></i>
                                                                <h6 class="mb-0" id="preview-name">{{ old('name', $section->name) }}</h6>
                                                            </div>
                                                            <span id="preview-collapsible" style="display: {{ old('collapsible', $section->collapsible) ? 'inline' : 'none' }};">
                                                                <button type="button" class="btn btn-sm btn-outline-secondary">
                                                                    <i class="fas fa-chevron-up" id="preview-chevron"></i>
                                                                </button>
                                                            </span>
                                                        </div>
                                                    </div>
                                                    <div class="card-body" id="preview-body">
                                                        <p class="mb-0" id="preview-description" style="color: var(--text-muted);">
                                                            {{ old('description', $section->description) ?: 'Section description will appear here...' }}
                                                        </p>
                                                        @if($section->fields && $section->fields->count() > 0)
                                                            <hr>
                                                            <small class="text-muted">
                                                                <i class="fas fa-info-circle me-1"></i>
                                                                Contains {{ $section->fields->count() }} existing field(s)
                                                            </small>
                                                        @endif
                                                    </div>
                                                </div>
                                            </div>
                                        </div>
                                    </div>
                                </div>
                            </div>
                        </div>

                        <!-- Form Actions -->
                        <div class="d-flex justify-content-between">
                            <a href="{{ route('data-management.data-types.sections.show', [$dataType, $section]) }}" class="btn btn-outline-secondary">
                                <i class="fas fa-times"></i>
                                Cancel
                            </a>
                            <button type="submit" class="btn btn-primary">
                                <i class="fas fa-save"></i>
                                Update Section
                            </button>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
@endsection

@push('scripts')
<script>
document.addEventListener('DOMContentLoaded', function() {
    const nameInput = document.getElementById('name');
    const slugInput = document.getElementById('slug');
    const iconInput = document.getElementById('icon');
    const descriptionInput = document.getElementById('description');
    const widthClassInput = document.getElementById('width_class');
    const collapsibleInput = document.getElementById('collapsible');
    const collapsedByDefaultInput = document.getElementById('collapsed_by_default');
    const collapsedOption = document.getElementById('collapsed-option');
    
    // Preview elements
    const previewName = document.getElementById('preview-name');
    const previewDescription = document.getElementById('preview-description');
    const previewIcon = document.getElementById('preview-icon');
    const previewContainer = document.getElementById('preview-container');
    const previewCollapsible = document.getElementById('preview-collapsible');
    const previewChevron = document.getElementById('preview-chevron');
    const previewBody = document.getElementById('preview-body');
    const iconPreview = document.getElementById('icon-preview');

    // Store original slug for comparison
    const originalSlug = '{{ $section->slug }}';
    let isSlugManuallyChanged = false;

    // Auto-generate slug from name (only if not manually changed)
    nameInput.addEventListener('input', function() {
        if (!isSlugManuallyChanged) {
            const slug = this.value
                .toLowerCase()
                .replace(/[^a-z0-9\s-]/g, '')
                .replace(/\s+/g, '-')
                .replace(/-+/g, '-')
                .trim('-');
            slugInput.value = slug;
        }
        updatePreview();
    });
    
    // Track manual slug changes
    slugInput.addEventListener('input', function() {
        isSlugManuallyChanged = (this.value !== originalSlug);
    });
    
    // Icon preview and update
    iconInput.addEventListener('input', function() {
        const iconClass = this.value || 'fas fa-layer-group';
        iconPreview.className = iconClass;
        previewIcon.className = iconClass + ' me-2';
    });

    // Description preview
    descriptionInput.addEventListener('input', updatePreview);

    // Width class preview
    widthClassInput.addEventListener('change', function() {
        previewContainer.className = this.value;
    });

    // Collapsible toggle
    collapsibleInput.addEventListener('change', function() {
        collapsedOption.style.display = this.checked ? 'block' : 'none';
        previewCollapsible.style.display = this.checked ? 'inline' : 'none';
        
        if (!this.checked) {
            collapsedByDefaultInput.checked = false;
            previewBody.style.display = 'block';
            previewChevron.className = 'fas fa-chevron-up';
        }
    });

    // Collapsed by default toggle
    collapsedByDefaultInput.addEventListener('change', function() {
        if (this.checked) {
            previewBody.style.display = 'none';
            previewChevron.className = 'fas fa-chevron-down';
        } else {
            previewBody.style.display = 'block';
            previewChevron.className = 'fas fa-chevron-up';
        }
    });

    // Update preview function
    function updatePreview() {
        const name = nameInput.value || 'Section Name';
        const description = descriptionInput.value || 'Section description will appear here...';
        
        previewName.textContent = name;
        previewDescription.textContent = description;
        
        if (!descriptionInput.value) {
            previewDescription.style.color = 'var(--text-muted)';
        } else {
            previewDescription.style.color = '';
        }
    }

    // Initialize collapsed state based on current values
    if (collapsedByDefaultInput.checked && collapsibleInput.checked) {
        previewBody.style.display = 'none';
        previewChevron.className = 'fas fa-chevron-down';
    }
});
</script>
@endpush