@extends('layouts.dashboard')

@section('title', 'PDF Uploads')
@section('page-title', 'PDF Uploads')
@section('content')

    <h2>Upload PDF</h2>
    @if(session('success'))
        <div class="alert alert-success">{{ session('success') }}</div>
    @endif
    @if(session('error'))
        <div class="alert alert-danger">{{ session('error') }}</div>
    @endif
    <form action="{{ route('user.pdfs.store') }}" method="POST" enctype="multipart/form-data" id="pdf-upload-form">
        @csrf
        <div class="mb-3">
            <label for="pdf_file" class="form-label">Select PDF file</label>
            <input type="file" class="form-control" id="pdf_file" name="pdf_file" accept="application/pdf" required>
            @error('pdf_file')
                <div class="text-danger">{{ $message }}</div>
            @enderror
        </div>
        <button type="submit" class="btn btn-primary" id="uploadBtn">
            <span class="spinner-border spinner-border-sm me-2 d-none" role="status" aria-hidden="true"></span>
            <span class="btn-text">Upload</span>
        </button>
    </form>

    <script>
        (function () {
            // Guard against duplicate bindings if the view re-renders via turbolinks/pjax
            var form = document.getElementById('pdf-upload-form');
            if (!form) return;

            var isSubmitting = false;
            form.addEventListener('submit', function (e) {
                if (isSubmitting) {
                    // Prevent any additional submissions
                    e.preventDefault();
                    return false;
                }
                isSubmitting = true;

                // Disable inputs to prevent multi-upload
                var fileInput = document.getElementById('pdf_file');
                var submitBtn = document.getElementById('uploadBtn');
                // Do NOT disable the file input; disabled inputs are not submitted
                if (fileInput) {
                    try {
                        fileInput.style.pointerEvents = 'none';
                        fileInput.style.opacity = '0.6';
                        fileInput.title = 'Uploading...';
                    } catch (err) { /* no-op */ }
                }
                if (submitBtn) {
                    submitBtn.setAttribute('disabled', 'disabled');
                    var spinner = submitBtn.querySelector('.spinner-border');
                    var btnText = submitBtn.querySelector('.btn-text');
                    if (spinner) spinner.classList.remove('d-none');
                    if (btnText) btnText.textContent = 'Uploading...';
                }
            }, { once: false });
        })();
    </script>

    @if(isset($message) && $message)
        <div class="alert alert-info mt-3">{{ $message }}</div>
    @endif
    @if(isset($filename) && $filename)
        <div class="alert alert-secondary">File: <strong>{{ $filename }}</strong></div>
    @endif

    @if(isset($invoiceData) && is_array($invoiceData) && count($invoiceData))
        <hr>
        <h3>Extracted Invoice Data</h3>
        <div class="table-responsive">
            <table class="table table-bordered table-hover mt-3 align-middle">
                <thead class="table-light">
                    <tr>
                        <th>#</th>
                        <th>SO No</th>
                        <th>Item Name</th>
                        <th>Category</th>
                        <th>HSN</th>
                        <th>Qty</th>
                        <th>Rate</th>
                    </tr>
                </thead>
                <tbody>
                    @php
                        $soNo = isset($filename) ? pathinfo($filename, PATHINFO_FILENAME) : '';
                    @endphp
                    @foreach($invoiceData as $row)
                        <tr>
                            <td>{{ $row['sr_no'] ?? '' }}</td>
                            <td>{{ $soNo }}</td>
                            <td>{{ $row['item_name'] ?? '' }}</td>
                            <td>{{ $row['category'] ?? '' }}</td>
                            <td>{{ $row['hsn'] ?? '' }}</td>
                            <td>{{ $row['qty'] ?? '' }}</td>
                            <td>{{ $row['rate'] ?? '' }}</td>
                        </tr>
                    @endforeach
                </tbody>
            </table>
        </div>
    @endif
    @if(isset($invoiceData) && is_array($invoiceData) && count($invoiceData) && !empty($apiTimestamp))
        @if(!empty($confirmOverwrite))
            <div class="alert alert-warning mt-3">
                <strong>Sales Order exists:</strong> SO <strong>{{ $soNo }}</strong> already has
                <strong>{{ $existingCount ?? 0 }}</strong> records in the database. Overwriting will delete all existing
                entries for this SO and insert the latest data.
            </div>
        @endif
        <form action="{{ route('user.pdfs.save-to-sales-orders') }}" method="POST" class="mt-3">
            @csrf
            <input type="hidden" name="so_no" value="{{ $soNo }}">
            <input type="hidden" name="invoice_data" value='@json($invoiceData)'>
            <input type="hidden" name="api_timestamp" value='{{ $apiTimestamp }}'>
            @if(!empty($confirmOverwrite))
                <input type="hidden" name="overwrite" value="yes">
                <button type="submit" class="btn btn-danger">Overwrite & Save</button>
            @else
                <button type="submit" class="btn btn-success">Continue</button>
            @endif
        </form>
    @endif
@if(isset($invoiceData) && is_array($invoiceData) && count($invoiceData))
    <script>
        console.log('API Extraction Response:', {
            success: @json($apiSuccess ?? null),
            message: @json($message ?? null),
            filename: @json($filename ?? null),
            timestamp: @json($apiTimestamp ?? null),
            data: @json($invoiceData ?? [])
        });
    </script>
@endif
@endsection