@extends('admin.layouts.app')

@section('title', 'Import Product Codes')

@section('back-url', route('product-codes.index'))

@section('content')
    <div class="card">
        <div class="card-body row">
            {{-- Left Column: File Upload --}}
            <div class="col-lg-6 border-right">
                <form action="{{ route('product-codes.import') }}" method="POST" enctype="multipart/form-data">
                    @csrf

                    <div class="form-group">
                        <label for="file"><strong>Upload Excel File</strong></label>
                        <input type="file" name="file" class="form-control @error('file') is-invalid @enderror" required>
                        @error('file')
                            <div class="invalid-feedback d-block">{{ $message }}</div>
                        @enderror
                    </div>

                    <button class="btn btn-primary showLoader" type="submit">Import</button>
                </form>

                {{-- Enhanced Error Display --}}
                @if ($errors->has('import_errors'))
                    <div class="mt-3 p-3 bg-light border border-danger rounded">
                        <h5 class="mb-3 font-weight-bold text-danger">❌ Import Errors:</h5>
                        <ul class="mb-0 pl-3">
                            @foreach ($errors->get('import_errors') as $msg)
                                <li class="mb-2 font-weight-bold text-danger">{{ $msg }}</li>
                            @endforeach
                        </ul>
                    </div>
                @endif
            </div>

            {{-- Right Column: Instructions --}}
            <div class="col-lg-6">
                <div class="bg-light p-4 rounded shadow-sm border">
                    <h5 class="mb-3 font-weight-bold text-primary">📄 Import Instructions</h5>
                    <ul class="text-dark pl-3">
                        <li>Upload an Excel file (.xlsx or .xls) with a single column: <strong>code</strong>.</li>
                        <li>Each code must be <strong>8 characters</strong>, alphanumeric only.</li>
                        <li>No duplicate codes allowed (within file or existing database).</li>
                        <li>All rows will be validated before any data is imported.</li>
                        <li>If any error occurs, the import will stop and errors will be shown here.</li>
                        <li>Maximum file size: <strong>2MB</strong>.</li>
                        <li>Example of valid codes:
                            <ul>
                                <li><code>AB12CD34</code></li>
                                <li><code>ZXCVBN12</code></li>
                            </ul>
                        </li>
                    </ul>
                </div>
            </div>
        </div>
    </div>
@endsection