@extends('layouts.admin')

@section('title', __('Upload Media Files'))

@section('content')
<div class="container-fluid">
    <!-- Page Header -->
    <div class="d-flex justify-content-between align-items-center mb-4">
        <div>
            <h1 class="h3 mb-0 text-gray-800">{{ __('Upload Media Files') }}</h1>
            <p class="mb-0 text-muted">{{ __('Add new files to your media library') }}</p>
        </div>
        <div>
            <a href="{{ route('admin.media.index', ['locale' => app()->getLocale()]) }}" class="btn btn-secondary">
                <i class="fas fa-arrow-left"></i> {{ __('Back to Library') }}
            </a>
        </div>
    </div>

    <!-- Upload Form -->
    <div class="row">
        <div class="col-lg-12">
            <div class="card shadow">
                <div class="card-header">
                    <h6 class="m-0 font-weight-bold text-primary">{{ __('File Upload') }}</h6>
                </div>
                <div class="card-body">
                    <form id="uploadForm" enctype="multipart/form-data">
                        @csrf

                        <!-- File Upload Area -->
                        <div class="form-group">
                            <label for="files">{{ __('Select Files') }} <span class="text-danger">*</span></label>
                            <div class="custom-file">
                                <input type="file" class="custom-file-input" id="files" name="files[]" multiple required>
                                <label class="custom-file-label" for="files">{{ __('Choose files...') }}</label>
                            </div>
                            <small class="form-text text-muted">
                                {{ __('Supported formats: Images (JPG, PNG, GIF, WebP), Videos (MP4, AVI, MOV), Audio (MP3, WAV), Documents (PDF, DOC, DOCX, XLS, XLSX). Max 50MB per file.') }}
                            </small>
                        </div>

                        <!-- Upload Progress -->
                        <div id="uploadProgress" class="progress mb-3" style="display: none;">
                            <div class="progress-bar" role="progressbar" style="width: 0%"></div>
                        </div>

                        <!-- Folder Selection -->
                        <div class="form-group">
                            <label for="folder_id">{{ __('Folder (Optional)') }}</label>
                            <select class="form-control" id="folder_id" name="folder_id">
                                <option value="">{{ __('Root Folder') }}</option>
                                @foreach($folders as $folder)
                                <option value="{{ $folder->id }}">{{ $folder->name }}</option>
                                @endforeach
                            </select>
                        </div>

                        <!-- Tags -->
                        <div class="form-group">
                            <label for="tags">{{ __('Tags (Optional)') }}</label>
                            <select class="form-control" id="tags" name="tags[]" multiple>
                                @foreach($tags as $tag)
                                <option value="{{ $tag->id }}">{{ $tag->name }}</option>
                                @endforeach
                            </select>
                            <small class="form-text text-muted">{{ __('Select existing tags or create new ones') }}</small>
                        </div>

                        <!-- Alt Text -->
                        <div class="row">
                            <div class="col-md-6">
                                <div class="form-group">
                                    <label for="alt_text_en">{{ __('Alt Text (English)') }}</label>
                                    <input type="text" class="form-control" id="alt_text_en" name="alt_text_en" maxlength="255" placeholder="{{ __('Alternative text for accessibility') }}">
                                    <small class="form-text text-muted">{{ __('Max 255 characters') }}</small>
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="form-group">
                                    <label for="alt_text_ar">{{ __('Alt Text (Arabic)') }}</label>
                                    <input type="text" class="form-control" id="alt_text_ar" name="alt_text_ar" maxlength="255" placeholder="{{ __('نص بديل للوصولية') }}">
                                    <small class="form-text text-muted">{{ __('Max 255 characters') }}</small>
                                </div>
                            </div>
                        </div>

                        <!-- Description -->
                        <div class="row">
                            <div class="col-md-6">
                                <div class="form-group">
                                    <label for="description_en">{{ __('Description (English)') }}</label>
                                    <textarea class="form-control" id="description_en" name="description_en" rows="3" maxlength="1000" placeholder="{{ __('Detailed description of the file') }}"></textarea>
                                    <small class="form-text text-muted">{{ __('Max 1000 characters') }}</small>
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="form-group">
                                    <label for="description_ar">{{ __('Description (Arabic)') }}</label>
                                    <textarea class="form-control" id="description_ar" name="description_ar" rows="3" maxlength="1000" placeholder="{{ __('وصف مفصل للملف') }}"></textarea>
                                    <small class="form-text text-muted">{{ __('Max 1000 characters') }}</small>
                                </div>
                            </div>
                        </div>

                        <!-- Public Access -->
                        <div class="form-group">
                            <div class="custom-control custom-switch">
                                <input type="checkbox" class="custom-control-input" id="is_public" name="is_public" checked>
                                <label class="custom-control-label" for="is_public">{{ __('Public Access') }}</label>
                            </div>
                            <small class="form-text text-muted">{{ __('Allow public access to these files') }}</small>
                        </div>

                        <!-- Submit Buttons -->
                        <div class="form-group">
                            <button type="submit" class="btn btn-primary">
                                <i class="fas fa-upload"></i> {{ __('Upload Files') }}
                            </button>
                            <button type="button" class="btn btn-secondary" onclick="resetForm()">
                                <i class="fas fa-undo"></i> {{ __('Reset') }}
                            </button>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>

    <!-- File Preview Area -->
    <div id="filePreview" class="row mt-4" style="display: none;">
        <div class="col-lg-12">
            <div class="card shadow">
                <div class="card-header">
                    <h6 class="m-0 font-weight-bold text-primary">{{ __('Selected Files Preview') }}</h6>
                </div>
                <div class="card-body">
                    <div id="previewContainer" class="row"></div>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

@push('styles')
<style>
.custom-file-label::after {
    content: "{{ __('Browse') }}";
}

.file-preview {
    position: relative;
    margin-bottom: 15px;
}

.file-preview img,
.file-preview video {
    max-width: 100%;
    max-height: 150px;
    object-fit: cover;
    border-radius: 5px;
}

.file-info {
    background: #f8f9fa;
    padding: 10px;
    border-radius: 5px;
    margin-top: 5px;
}

.remove-file {
    position: absolute;
    top: 5px;
    right: 5px;
    background: rgba(220, 53, 69, 0.8);
    color: white;
    border: none;
    border-radius: 50%;
    width: 25px;
    height: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 12px;
}
</style>
@endpush

@push('scripts')
<script>
$(document).ready(function() {
    // Initialize select2 for tags
    $('#tags').select2({
        placeholder: '{{ __("Select tags") }}',
        allowClear: true,
        tags: true,
        createTag: function (params) {
            return {
                id: params.term,
                text: params.term,
                newOption: true
            };
        }
    });

    // File input change handler
    $('#files').on('change', function() {
        const files = this.files;
        if (files.length > 0) {
            showFilePreview(files);
            $('#filePreview').show();
        } else {
            $('#filePreview').hide();
        }
    });

    // Upload form submission
    $('#uploadForm').on('submit', function(e) {
        e.preventDefault();

        const formData = new FormData(this);
        const files = $('#files')[0].files;

        if (files.length === 0) {
            alert('{{ __("Please select at least one file to upload.") }}');
            return;
        }

        // Show progress bar
        $('#uploadProgress').show();
        const progressBar = $('#uploadProgress .progress-bar');

        $.ajax({
            url: '{{ route("admin.media.store", ["locale" => app()->getLocale()]) }}',
            type: 'POST',
            data: formData,
            processData: false,
            contentType: false,
            xhr: function() {
                const xhr = new window.XMLHttpRequest();
                xhr.upload.addEventListener('progress', function(e) {
                    if (e.lengthComputable) {
                        const percentComplete = (e.loaded / e.total) * 100;
                        progressBar.css('width', percentComplete + '%');
                        progressBar.text(Math.round(percentComplete) + '%');
                    }
                });
                return xhr;
            },
            success: function(response) {
                $('#uploadProgress').hide();
                progressBar.css('width', '0%');
                progressBar.text('');

                // Show success message
                if (typeof toastr !== 'undefined') {
                    toastr.success('{{ __("Files uploaded successfully!") }}');
                } else {
                    alert('{{ __("Files uploaded successfully!") }}');
                }

                // Reset form and redirect
                resetForm();
                setTimeout(function() {
                    window.location.href = '{{ route("admin.media.index", ["locale" => app()->getLocale()]) }}';
                }, 1500);
            },
            error: function(xhr) {
                $('#uploadProgress').hide();
                progressBar.css('width', '0%');
                progressBar.text('');

                let errorMessage = '{{ __("Upload failed. Please try again.") }}';
                if (xhr.responseJSON && xhr.responseJSON.errors) {
                    const errors = Object.values(xhr.responseJSON.errors).flat();
                    errorMessage = errors.join('\n');
                }

                if (typeof toastr !== 'undefined') {
                    toastr.error(errorMessage);
                } else {
                    alert(errorMessage);
                }
            }
        });
    });
});

// Show file preview
function showFilePreview(files) {
    const container = $('#previewContainer');
    container.empty();

    Array.from(files).forEach((file, index) => {
        const fileItem = $(`
            <div class="col-md-3 file-preview">
                <div class="position-relative">
                    ${getFilePreview(file)}
                    <button type="button" class="remove-file" onclick="removeFile(${index})">
                        <i class="fas fa-times"></i>
                    </button>
                </div>
                <div class="file-info">
                    <small class="d-block font-weight-bold">${file.name}</small>
                    <small class="text-muted">${formatFileSize(file.size)}</small>
                </div>
            </div>
        `);
        container.append(fileItem);
    });
}

// Get file preview based on type
function getFilePreview(file) {
    const fileType = file.type.split('/')[0];

    if (fileType === 'image') {
        return `<img src="${URL.createObjectURL(file)}" class="img-fluid" alt="${file.name}">`;
    } else if (fileType === 'video') {
        return `<video class="img-fluid" controls>
                    <source src="${URL.createObjectURL(file)}" type="${file.type}">
                </video>`;
    } else {
        const icon = getFileIcon(file.type);
        return `<div class="d-flex align-items-center justify-content-center bg-light" style="height: 100px;">
                    <i class="fas fa-${icon} fa-2x text-muted"></i>
                </div>`;
    }
}

// Get file icon based on type
function getFileIcon(mimeType) {
    if (mimeType.startsWith('image/')) return 'file-image';
    if (mimeType.startsWith('video/')) return 'file-video';
    if (mimeType.startsWith('audio/')) return 'file-audio';
    if (mimeType === 'application/pdf') return 'file-pdf';
    if (mimeType.includes('word') || mimeType.includes('document')) return 'file-word';
    if (mimeType.includes('excel') || mimeType.includes('spreadsheet')) return 'file-excel';
    return 'file';
}

// Format file size
function formatFileSize(bytes) {
    if (bytes === 0) return '0 Bytes';
    const k = 1024;
    const sizes = ['Bytes', 'KB', 'MB', 'GB'];
    const i = Math.floor(Math.log(bytes) / Math.log(k));
    return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
}

// Remove file from preview
function removeFile(index) {
    const input = $('#files')[0];
    const files = Array.from(input.files);
    files.splice(index, 1);

    // Create new FileList
    const dt = new DataTransfer();
    files.forEach(file => dt.items.add(file));
    input.files = dt.files;

    // Update preview
    if (files.length > 0) {
        showFilePreview(files);
    } else {
        $('#filePreview').hide();
    }
}

// Reset form
function resetForm() {
    $('#uploadForm')[0].reset();
    $('#tags').val(null).trigger('change');
    $('#filePreview').hide();
    $('#uploadProgress').hide();
    $('#uploadProgress .progress-bar').css('width', '0%').text('');
}
</script>
@endpush