@extends('layouts.finance')

@section('title', 'Invoices')
@section('subtitle', 'Supplier invoices for Pakistan voucher operations')

@section('content')
@php
    $rows = $summaryRows ?? $invoices->getCollection();
    $invoiceTotal = fn($i) => (float) $i->amount + (float) ($i->fee_amount ?? 0);
    $invoiceRate = fn($i) => $i->currency === 'PKR' ? 1.0 : ((float) ($i->conversion_rate ?? 0) > 0 ? (float) $i->conversion_rate : null);
    $invoicePkr = fn($i) => $invoiceRate($i) ? $invoiceTotal($i) * $invoiceRate($i) : $metrics->convert($invoiceTotal($i), $i->currency, 'PKR');
    $paymentSource = function ($invoice) {
        if ($invoice->payment_source === 'credit_card') {
            return $invoice->creditCard
                ? trim($invoice->creditCard->issuer.' - '.$invoice->creditCard->card_name.' ('.$invoice->creditCard->currency.')')
                : '-';
        }

        if ($invoice->payment_source === 'bank_account' || $invoice->bankAccount) {
            return $invoice->bankAccount
                ? trim($invoice->bankAccount->name.' - '.$invoice->bankAccount->bank_name.' ('.$invoice->bankAccount->currency.')')
                : '-';
        }

        return '-';
    };
    $unpaid = $rows->whereNotIn('status', ['paid', 'cancelled'])->sum(fn($i) => $invoicePkr($i));
    $paid = $rows->where('status', 'paid')->sum(fn($i) => $invoicePkr($i));
    $voucherTotal = $rows->sum('voucher_count');
    $statusLabel = fn($status) => match($status) {
        'paid' => 'Paid',
        'transit' => 'Transit',
        'partial_paid' => 'Partial Paid',
        'release_on_credit' => 'On Credit',
        'debt' => 'Debt',
        'overdue' => 'Overdue',
        'cancelled' => 'Cancelled',
        default => 'Unpaid',
    };
    $statusClass = fn($status) => match($status) {
        'paid' => 'pill-green',
        'transit' => 'pill-cyan',
        'partial_paid' => 'pill-amber',
        'release_on_credit' => 'pill-purple',
        'debt' => 'pill-blue',
        'overdue' => 'pill-red',
        'cancelled' => 'pill-rose',
        default => 'pill-amber',
    };
@endphp

<div class="grid grid-4 mb-5">
    @include('partials.kpi', ['label' => 'Unpaid', 'value' => $metrics->money($unpaid, 'PKR'), 'color' => '#f59e0b'])
    @include('partials.kpi', ['label' => 'Paid', 'value' => $metrics->money($paid, 'PKR'), 'color' => '#10b981'])
    @include('partials.kpi', ['label' => 'Total Vouchers', 'value' => number_format($voucherTotal)])
    @include('partials.kpi', ['label' => 'Total Invoices', 'value' => $invoices->total()])
</div>

<div class="card p-5 mb-5" style="background:linear-gradient(135deg,#eef2ff,#ffffff);border-color:#c7d2fe">
    <div class="flex items-center justify-between gap-3 flex-wrap">
        <div>
            <h3 class="font-semibold" style="margin:0">Supplier Invoices</h3>
            <p class="text-xs" style="color:var(--muted);margin:2px 0 0">Bills from voucher suppliers, tracked in PKR equivalent for Pakistan operations.</p>
        </div>
        <a href="{{ route('finance.invoices.create') }}" class="btn btn-primary">+ Add Invoice</a>
    </div>
</div>

<section class="card mb-5">
    <div class="section-head">
        <h2>Filters</h2>
        <a href="{{ route('finance.invoices') }}" class="btn btn-sm">Reset</a>
    </div>
    <div class="card-pad">
        <form method="GET" class="row-form" style="grid-template-columns:repeat(3,minmax(0,1fr))">
            <div>
                <label class="label">Status</label>
                <select class="field" name="status">
                    <option value="">All</option>
                    @foreach($statuses as $status)
                        <option value="{{ $status }}" @selected(request('status') === $status)>{{ $statusLabel($status) }}</option>
                    @endforeach
                </select>
            </div>
            <div>
                <label class="label">Country</label>
                <select class="field" name="country">
                    <option value="">All</option>
                    @foreach($countries as $country)
                        <option value="{{ $country }}" @selected(request('country') === $country)>{{ $country }}</option>
                    @endforeach
                </select>
            </div>
            <button class="btn btn-primary">Apply</button>
        </form>
    </div>
</section>

<section class="card">
    <div class="section-head">
        <h2>Supplier Invoices</h2>
    </div>
    <div class="scrollbar" style="overflow:auto">
        <table>
            <thead>
                <tr>
                    <th>#</th>
                    <th>Company</th>
                    <th>Product</th>
                    <th>Country</th>
                    <th>Payment Source</th>
                    <th>Issue Date</th>
                    <th>Paid On</th>
                    <th class="right">Vouchers</th>
                    <th class="right">Amount</th>
                    <th class="right">Fee</th>
                    <th class="right">Total</th>
                    <th class="right">Rate</th>
                    <th class="right">PKR Eq.</th>
                    <th>Status</th>
                    <th></th>
                </tr>
            </thead>
            <tbody>
            @forelse($invoices as $invoice)
                <tr class="row-hover">
                    <td style="font-weight:700">{{ $invoice->invoice_number }}</td>
                    <td>{{ $invoice->supplier_name ?? $invoice->client_name }}</td>
                    <td>{{ $invoice->productSummary() ?? '-' }}</td>
                    <td>{{ $invoice->country ?? 'Pakistan' }}</td>
                    <td>{{ $paymentSource($invoice) }}</td>
                    <td>{{ $invoice->issue_date?->format('d M Y') ?? '-' }}</td>
                    <td>{{ $invoice->paid_at?->format('d M Y') ?? '-' }}</td>
                    <td class="right">{{ number_format((int) $invoice->voucher_count) }}</td>
                    <td class="right">{{ $metrics->money($invoice->amount, $invoice->currency) }}</td>
                    <td class="right">{{ $metrics->money($invoice->fee_amount ?? 0, $invoice->currency) }}</td>
                    <td class="right">{{ $metrics->money($invoiceTotal($invoice), $invoice->currency) }}</td>
                    <td class="right">{{ $invoiceRate($invoice) ? number_format($invoiceRate($invoice), 4) : '-' }}</td>
                    <td class="right">{{ $metrics->money($invoicePkr($invoice), 'PKR') }}</td>
                    <td><span class="pill {{ $statusClass($invoice->status) }}">{{ $statusLabel($invoice->status) }}</span></td>
                    <td class="actions">
                        <a href="{{ route('finance.invoices.show', $invoice) }}" class="btn btn-sm">View</a>
                        <a href="{{ route('finance.invoices.edit', $invoice) }}" class="btn btn-sm">Edit</a>
                        <form method="POST" action="{{ route('finance.invoices.destroy', $invoice) }}" onsubmit="return confirm('Delete invoice {{ $invoice->invoice_number }}?')">
                            @csrf
                            @method('DELETE')
                            <button class="btn btn-sm btn-danger">Delete</button>
                        </form>
                    </td>
                </tr>
            @empty
                <tr><td colspan="15" class="muted text-center" style="padding:32px">No supplier invoices yet.</td></tr>
            @endforelse
            </tbody>
        </table>
    </div>
    <div class="card-pad">{{ $invoices->links() }}</div>
</section>
@endsection