@extends('layouts.app')

@section('content')
    <div class="container mt-4">
        <div class="card shadow-sm border-0 printable-area">
            {{-- Card Header with Action Buttons (Hidden on Print) --}}
            <div class="card-header bg-white d-flex justify-content-between align-items-center py-3 d-print-none">
                <h5 class="mb-0 fw-bold text-primary">Invoice: {{ $sale->invoice_no }}</h5>
                <div>
                    <a href="{{ route('sales.edit', $sale) }}" class="btn btn-outline-warning btn-sm me-2">
                        <i class="bi bi-pencil-square me-1"></i> Edit Invoice
                    </a>
                    <a href="{{ route('sales.print', $sale) }}" class="btn btn-outline-primary btn-sm me-2">
                        <i class="bi bi-printer me-1"></i> Print Invoice
                    </a>
                    <a href="{{ route('sales.index') }}" class="btn btn-outline-secondary btn-sm">Back to List</a>
                </div>
            </div>

            <div class="card-body p-4">
                @if (session('success'))
                    <div class="alert alert-success alert-dismissible fade show d-print-none" role="alert">
                        {{ session('success') }}
                        <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>
                    </div>
                @endif
                <div class="row mb-4">
                    <div class="col-sm-6">
                        <h6 class="text-muted text-uppercase fw-bold">Invoice Details</h6>
                        <p class="mb-1"><strong>Invoice No:</strong> {{ $sale->invoice_no }}</p>
                        <p class="mb-0"><strong>Salesman:</strong> {{ $sale->salesman->name ?? 'N/A' }}</p>
                    </div>
                    <div class="col-sm-6 text-sm-end">
                        <h6 class="text-muted text-uppercase fw-bold">Date & Time</h6>
                        <p class="mb-0 font-monospace">{{ $sale->created_at->format('F d, Y - h:i A') }}</p>
                    </div>
                </div>

                <table class="table table-bordered align-middle">
                    <thead class="table-light text-uppercase small">
                        <tr>
                            <th>#</th>
                            <th>Product</th>
                            <th>Company</th>
                            <th>Batch No</th>
                            <th class="text-center">Sold Qty</th>
                            <th class="text-center text-danger">Returned </th>
                            <th class="text-center text-success">Free Qty</th>
                            <th class="text-center text-info">Free Returned</th>
                            <th class="text-end">Unit Price</th>
                            <th class="text-end">Commission</th>
                            <th class="text-end">Total Price</th>
                            {{-- <th class="text-end">Total Profit</th> --}}
                        </tr>
                    </thead>
                    <tbody>
                        @php
                            $originalSubtotal = 0;
                        @endphp
                        @foreach ($sale->details as $index => $detail)
                            @php
                                $lineOriginalTotal = $detail->total_price;
                                $originalSubtotal += $lineOriginalTotal;

                                // Calculate cumulative returned quantities for paid and free items separately.
                                $totalReturnedQty = optional($detail->returnDetails)->sum('returned_qty') ?? 0;
                                $totalFreeReturnedQty = optional($detail->returnDetails)->sum('free_returned_qty') ?? 0;
                            @endphp
                            <tr>
                                <td>{{ $index + 1 }}</td>
                                <td class="fw-bold">{{ $detail->medicine->name ?? 'N/A' }}</td>
                                <td>{{ $detail->company->company_name ?? ($detail->company->name ?? 'N/A') }}</td>
                                <td><code>{{ $detail->batch_no }}</code></td>
                                <td class="text-center">
                                    {{ $detail->medicine?->formatQuantity($detail->quantity) ?? $detail->quantity }}</td>
                                <td class="text-center">
                                    @if ($totalReturnedQty > 0)
                                        <span class="badge bg-warning text-dark">
                                            Ret:
                                            {{ $detail->medicine?->formatQuantity($totalReturnedQty) ?? $totalReturnedQty }}
                                        </span>
                                    @else
                                        <span class="text-muted">-</span>
                                    @endif
                                </td>
                                <td class="text-center">
                                    @if ($detail->free_quantity > 0)
                                        <span class="badge bg-success">
                                            {{ $detail->medicine?->formatQuantity($detail->free_quantity) ?? $detail->free_quantity }}
                                        </span>
                                    @else
                                        <span class="text-muted">-</span>
                                    @endif
                                </td>
                                <td class="text-center">
                                    @if ($totalFreeReturnedQty > 0)
                                        <span class="badge bg-info text-dark">
                                            {{ $detail->medicine?->formatQuantity($totalFreeReturnedQty) ?? $totalFreeReturnedQty }}
                                        </span>
                                    @else
                                        <span class="text-muted">-</span>
                                    @endif
                                </td>

                                <td class="text-end">{{ number_format($detail->selling_price, 2) }}</td>
                                <td class="text-end">{{ number_format($detail->commission ?? 0, 2) }}</td>
                                <td class="text-end fw-bold">{{ number_format($lineOriginalTotal, 2) }}</td>
                                {{-- <td class="text-end fw-bold">{{ number_format($detail->profit, 2) }}</td> --}}
                            </tr>
                        @endforeach
                    </tbody>
                    <tfoot>
                        @php
                            $totalRefunds = optional($sale->returns)->sum('refund_total') ?? 0;
                            $totalCommissions = $sale->details->sum('commission');
                        @endphp

                        {{-- Original Sales Amount --}}
                        <tr>
                            <td colspan="10" class="text-end fw-bold">Original Total:</td>
                            <td class="text-end fw-bold">{{ number_format($originalSubtotal, 2) }} Tk</td>
                        </tr>
                        <tr>
                            <td colspan="10" class="text-end fw-bold">Less Commission:</td>
                            <td class="text-end fw-bold">-{{ number_format($totalCommissions, 2) }} Tk</td>
                        </tr>
                        {{-- <tr>
                        <td colspan="8" class="text-end fw-bold">Total Profit:</td>
                        <td class="text-end fw-bold">{{ ($sale->details->sum('profit') ?? 'n/a') }} Tk</td>
                    </tr> --}}

                        {{-- Returns & Refund Deduction (if applicable) --}}
                        @if ($totalRefunds > 0)
                            <tr class="table-danger">
                                <td colspan="10" class="text-end fw-bold">Less Returns & Adjustments:</td>
                                <td class="text-end fw-bold">-{{ number_format($totalRefunds, 2) }} Tk</td>
                            </tr>
                        @endif

                        {{-- Final Net Payable Grand Total --}}
                        <tr class="table-primary fw-bold fs-5">
                            <td colspan="10" class="text-end">Net Total:</td>
                            <td class="text-end">{{ number_format($sale->grand_total, 2) }} Tk</td>
                        </tr>
                    </tfoot>
                </table>

                {{-- Return Summary History --}}
                @if ($sale->returns && $sale->returns->count() > 0)
                    <div class="mt-4 p-3 bg-light rounded border">
                        <h6 class="fw-bold text-danger mb-2"><i class="bi bi-arrow-return-left me-1"></i> Return Summary
                            History</h6>
                        <ul class="mb-0 ps-3 small">
                            @foreach ($sale->returns as $return)
                                <li>
                                    <strong>{{ $return->return_no }}</strong>
                                    ({{ $return->created_at->format('M d, Y') }})
                                    :
                                    Refunded <strong>{{ number_format($return->refund_total, 2) }} Tk</strong>
                                    @if ($return->note)
                                        — <em>"{{ $return->note }}"</em>
                                    @endif
                                </li>
                            @endforeach
                        </ul>
                    </div>
                @endif
            </div>
        </div>
    </div>

    {{-- Print Styles --}}
    <style>
        @media print {
            body * {
                visibility: hidden;
            }

            .printable-area,
            .printable-area * {
                visibility: visible;
            }

            .printable-area {
                position: absolute;
                left: 0;
                top: 0;
                width: 100%;
                border: none !important;
                box-shadow: none !important;
            }

            .d-print-none {
                display: none !important;
            }
        }
    </style>
@endsection