@extends('layouts.app')
@section('title', $invoice->invoice_number)
@section('page-title', 'ইনভয়েস বিস্তারিত')

@section('content')
<div class="row g-4">

    {{-- LEFT: Invoice Detail --}}
    <div class="col-lg-8">

        {{-- Invoice Header --}}
        <div class="card stat-card mb-4">
            <div class="card-body">
                <div class="d-flex justify-content-between align-items-start flex-wrap gap-3">
                    <div>
                        <h4 class="fw-bold mb-1">{{ $invoice->invoice_number }}</h4>
                        <div class="d-flex gap-2">
                            <span class="badge bg-{{ $invoice->status_color }} fs-6">{{ $invoice->status_label }}</span>
                        </div>
                        <div class="text-muted small mt-2">
                            <i class="bi bi-calendar me-1"></i>তারিখ: {{ $invoice->issue_date->format('d M Y') }}
                            @if($invoice->due_date)
                                &nbsp;|&nbsp;<i class="bi bi-calendar-x me-1"></i>
                                পরিশোধের শেষ: {{ $invoice->due_date->format('d M Y') }}
                            @endif
                        </div>
                    </div>
                    <div class="d-flex gap-2">
                        <a href="{{ route('admin.invoices.print', $invoice) }}" target="_blank"
                           class="btn btn-outline-secondary btn-sm">
                            <i class="bi bi-printer me-1"></i>প্রিন্ট
                        </a>
                        @if($invoice->due_amount > 0)
                        <form method="POST" action="{{ route('admin.invoices.send-reminder', $invoice) }}">
                            @csrf
                            <button class="btn btn-outline-warning btn-sm">
                                <i class="bi bi-phone me-1"></i>SMS রিমাইন্ডার
                            </button>
                        </form>
                        @endif
                        <a href="{{ route('admin.invoices.index') }}" class="btn btn-outline-secondary btn-sm">
                            <i class="bi bi-arrow-left"></i>
                        </a>
                    </div>
                </div>
            </div>
        </div>

        {{-- Order Items --}}
        <div class="card stat-card mb-4">
            <div class="card-header bg-white border-0 pt-3">
                <h6 class="fw-semibold mb-0"><i class="bi bi-fire text-warning me-2"></i>আইটেম বিবরণ</h6>
            </div>
            <div class="card-body p-0">
                <table class="table mb-0">
                    <thead class="table-light">
                        <tr>
                            <th>পণ্য</th>
                            <th class="text-center">পরিমাণ</th>
                            <th class="text-end">একক মূল্য</th>
                            <th class="text-end">সাবটোটাল</th>
                        </tr>
                    </thead>
                    <tbody>
                        @foreach($invoice->order->items as $item)
                        <tr>
                            <td class="fw-semibold">{{ $item->cylinderType->name }}</td>
                            <td class="text-center">{{ $item->quantity }}</td>
                            <td class="text-end">৳{{ number_format($item->unit_price, 2) }}</td>
                            <td class="text-end fw-bold">৳{{ number_format($item->subtotal, 2) }}</td>
                        </tr>
                        @endforeach
                    </tbody>
                    <tfoot class="table-light">
                        <tr>
                            <td colspan="3" class="text-end fw-bold">মোট:</td>
                            <td class="text-end fw-bold fs-5 text-primary">৳{{ number_format($invoice->total_amount, 2) }}</td>
                        </tr>
                        <tr>
                            <td colspan="3" class="text-end text-success">পরিশোধ:</td>
                            <td class="text-end text-success fw-semibold">৳{{ number_format($invoice->paid_amount, 2) }}</td>
                        </tr>
                        <tr>
                            <td colspan="3" class="text-end text-danger fw-bold">বকেয়া:</td>
                            <td class="text-end text-danger fw-bold fs-5">৳{{ number_format($invoice->due_amount, 2) }}</td>
                        </tr>
                    </tfoot>
                </table>
            </div>
        </div>

        {{-- Payment History --}}
        <div class="card stat-card mb-4">
            <div class="card-header bg-white border-0 pt-3">
                <h6 class="fw-semibold mb-0"><i class="bi bi-clock-history text-success me-2"></i>পেমেন্ট ইতিহাস</h6>
            </div>
            <div class="card-body p-0">
                <table class="table table-hover mb-0 align-middle">
                    <thead class="table-light">
                        <tr>
                            <th>তারিখ</th>
                            <th>পদ্ধতি</th>
                            <th>Transaction ID</th>
                            <th class="text-end">পরিমাণ</th>
                            <th>গ্রহণকারী</th>
                        </tr>
                    </thead>
                    <tbody>
                        @forelse($invoice->payments as $pay)
                        <tr>
                            <td><small>{{ $pay->paid_at->format('d M Y, h:i A') }}</small></td>
                            <td>
                                <span class="badge bg-{{ $pay->method_color }}">{{ $pay->method_label }}</span>
                            </td>
                            <td><small class="text-muted">{{ $pay->transaction_id ?? '—' }}</small></td>
                            <td class="text-end fw-bold text-success">৳{{ number_format($pay->amount, 2) }}</td>
                            <td><small>{{ $pay->receivedBy->name }}</small></td>
                        </tr>
                        @empty
                        <tr>
                            <td colspan="5" class="text-center text-muted py-3">কোনো পেমেন্ট নেই।</td>
                        </tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
        </div>

    </div>

    {{-- RIGHT: Customer + Payment Form --}}
    <div class="col-lg-4">

        {{-- Customer Info --}}
        <div class="card stat-card mb-4">
            <div class="card-header bg-white border-0 pt-3">
                <h6 class="fw-semibold mb-0"><i class="bi bi-person text-primary me-2"></i>গ্রাহক</h6>
            </div>
            <div class="card-body">
                <h6 class="fw-bold mb-2">{{ $invoice->customer->name }}</h6>
                <div class="small text-muted">
                    <div><i class="bi bi-telephone me-2"></i>{{ $invoice->customer->phone }}</div>
                    @if($invoice->customer->address)
                        <div class="mt-1"><i class="bi bi-geo-alt me-2"></i>{{ $invoice->customer->address }}</div>
                    @endif
                </div>
                <hr class="my-2">
                <div class="d-flex justify-content-between small">
                    <span class="text-muted">মোট বকেয়া:</span>
                    <span class="fw-bold text-danger">৳{{ number_format($invoice->customer->due_balance, 2) }}</span>
                </div>
            </div>
        </div>

        {{-- Add Payment --}}
        @if($invoice->due_amount > 0)
        <div class="card stat-card border-success">
            <div class="card-header bg-white border-0 pt-3">
                <h6 class="fw-semibold mb-0"><i class="bi bi-cash-coin text-success me-2"></i>পেমেন্ট গ্রহণ</h6>
                <small class="text-danger">বকেয়া: ৳{{ number_format($invoice->due_amount, 2) }}</small>
            </div>
            <div class="card-body">
                <form method="POST" action="{{ route('admin.invoices.payment', $invoice) }}">
                    @csrf
                    <div class="mb-3">
                        <label class="form-label fw-semibold small">পরিমাণ (৳) <span class="text-danger">*</span></label>
                        <input type="number" name="amount" class="form-control"
                            min="0.01" max="{{ $invoice->due_amount }}"
                            step="0.01" value="{{ $invoice->due_amount }}" required>
                    </div>
                    <div class="mb-3">
                        <label class="form-label fw-semibold small">পদ্ধতি <span class="text-danger">*</span></label>
                        <div class="row g-2">
                            @foreach($methodLabels as $val => $info)
                            <div class="col-6">
                                <div class="form-check">
                                    <input class="form-check-input" type="radio" name="method"
                                        value="{{ $val }}" id="method_{{ $val }}"
                                        {{ $val === 'cash' ? 'checked' : '' }}>
                                    <label class="form-check-label small" for="method_{{ $val }}">
                                        <span class="badge bg-{{ $info['color'] }}">{{ $info['label'] }}</span>
                                    </label>
                                </div>
                            </div>
                            @endforeach
                        </div>
                    </div>
                    <div class="mb-3" id="txnField" style="display:none">
                        <label class="form-label fw-semibold small">Transaction ID</label>
                        <input type="text" name="transaction_id" class="form-control form-control-sm"
                            placeholder="বিকাশ/নগদ নম্বর">
                    </div>
                    <div class="mb-3">
                        <label class="form-label fw-semibold small">নোট</label>
                        <textarea name="notes" class="form-control form-control-sm" rows="2"></textarea>
                    </div>
                    <button type="submit" class="btn btn-success w-100 fw-semibold">
                        <i class="bi bi-check2 me-1"></i>পেমেন্ট নিশ্চিত করুন
                    </button>
                </form>
            </div>
        </div>
        @else
        <div class="card stat-card border-success">
            <div class="card-body text-center py-4 text-success">
                <i class="bi bi-check-circle-fill fs-1"></i>
                <p class="mt-2 mb-0 fw-semibold">সম্পূর্ণ পরিশোধিত</p>
            </div>
        </div>
        @endif

    </div>
</div>

@push('scripts')
<script>
document.querySelectorAll('input[name="method"]').forEach(radio => {
    radio.addEventListener('change', function() {
        document.getElementById('txnField').style.display =
            ['bkash','nagad','rocket','bank'].includes(this.value) ? 'block' : 'none';
    });
});
</script>
@endpush
@endsection