@extends('layouts.app')

@section('title', 'Sales Invoices')
@section('page_title', 'Sales Tax Invoices (GST)')

@section('content')
<div class="container-fluid p-0">
    <div class="card border-0 shadow-sm mb-4">
        <div class="card-body">
            <div class="d-flex flex-wrap justify-content-between align-items-center gap-3">
                <form action="{{ route('invoices.index') }}" method="GET" class="d-flex flex-wrap align-items-center gap-2 flex-grow-1">
                    <div class="input-group" style="max-width: 320px;">
                        <span class="input-group-text bg-light border-end-0"><i class="bi bi-search"></i></span>
                        <input type="text" name="search" class="form-control border-start-0" placeholder="Search invoice #, customer..." value="{{ request('search') }}">
                    </div>

                    <select name="payment_status" class="form-select" style="max-width: 180px;" onchange="this.form.submit()">
                        <option value="">All Payment Statuses</option>
                        <option value="paid" {{ request('payment_status') == 'paid' ? 'selected' : '' }}>Paid</option>
                        <option value="partially_paid" {{ request('payment_status') == 'partially_paid' ? 'selected' : '' }}>Partially Paid</option>
                        <option value="unpaid" {{ request('payment_status') == 'unpaid' ? 'selected' : '' }}>Unpaid</option>
                    </select>

                    <select name="status" class="form-select" style="max-width: 160px;" onchange="this.form.submit()">
                        <option value="">All Statuses</option>
                        <option value="approved" {{ request('status') == 'approved' ? 'selected' : '' }}>Approved</option>
                        <option value="cancelled" {{ request('status') == 'cancelled' ? 'selected' : '' }}>Cancelled</option>
                    </select>

                    @if(request()->hasAny(['search', 'payment_status', 'status']))
                        <a href="{{ route('invoices.index') }}" class="btn btn-outline-secondary btn-sm">Clear</a>
                    @endif
                </form>

                <div>
                    <a href="{{ route('invoices.create') }}" class="btn btn-primary">
                        <i class="bi bi-plus-lg me-1"></i> New Sales Tax Invoice
                    </a>
                </div>
            </div>
        </div>
    </div>

    <!-- Invoices Table -->
    <div class="card border-0 shadow-sm">
        <div class="card-body p-0">
            <div class="table-responsive">
                <table class="table table-hover align-middle mb-0">
                    <thead class="table-light">
                        <tr>
                            <th>Invoice # / Date</th>
                            <th>Customer (Place of Supply)</th>
                            <th>GST Tax Type</th>
                            <th class="text-end">Taxable Value</th>
                            <th class="text-end">Total Tax</th>
                            <th class="text-end">Grand Total</th>
                            <th class="text-end">Balance Due</th>
                            <th class="text-center">Status</th>
                            <th class="text-end">Actions</th>
                        </tr>
                    </thead>
                    <tbody>
                        @forelse($invoices as $invoice)
                            <tr class="{{ $invoice->status == 'cancelled' ? 'table-light opacity-75' : '' }}">
                                <td>
                                    <a href="{{ route('invoices.show', $invoice) }}" class="fw-bold text-decoration-none">
                                        {{ $invoice->invoice_number }}
                                    </a>
                                    <div class="small text-muted">{{ $invoice->invoice_date->format('d M Y') }}</div>
                                </td>
                                <td>
                                    <div class="fw-semibold text-dark">{{ $invoice->party_name }}</div>
                                    <small class="text-muted">
                                        @if($invoice->party_gstin)
                                            GSTIN: <span class="font-monospace">{{ $invoice->party_gstin }}</span>
                                        @else
                                            <span class="badge bg-light text-muted border">B2C Unregistered</span>
                                        @endif
                                    </small>
                                </td>
                                <td>
                                    @if($invoice->is_inter_state)
                                        <span class="badge bg-purple-subtle text-primary border border-primary-subtle">
                                            IGST ({{ $invoice->place_of_supply_state }})
                                        </span>
                                    @else
                                        <span class="badge bg-info-subtle text-dark border border-info-subtle">
                                            CGST + SGST (Intra)
                                        </span>
                                    @endif
                                </td>
                                <td class="text-end text-muted">
                                    ₹{{ number_format($invoice->taxable_amount, 2) }}
                                </td>
                                <td class="text-end fw-semibold text-dark">
                                    ₹{{ number_format($invoice->total_tax_amount, 2) }}
                                </td>
                                <td class="text-end fw-bold text-dark fs-6">
                                    ₹{{ number_format($invoice->grand_total, 2) }}
                                </td>
                                <td class="text-end fw-semibold {{ $invoice->balance_due > 0 ? 'text-danger' : 'text-success' }}">
                                    ₹{{ number_format($invoice->balance_due, 2) }}
                                </td>
                                <td class="text-center">
                                    @if($invoice->status == 'cancelled')
                                        <span class="badge bg-secondary">Cancelled</span>
                                    @else
                                        <span class="badge {{ $invoice->payment_badge_class }}">
                                            {{ ucfirst(str_replace('_', ' ', $invoice->payment_status)) }}
                                        </span>
                                    @endif
                                </td>
                                <td class="text-end">
                                    <div class="btn-group btn-group-sm">
                                        <a href="{{ route('invoices.show', $invoice) }}" class="btn btn-outline-secondary" title="View Details">
                                            <i class="bi bi-eye"></i>
                                        </a>
                                        <a href="{{ route('invoices.print', $invoice) }}" target="_blank" class="btn btn-outline-primary" title="Print Tax Invoice">
                                            <i class="bi bi-printer"></i>
                                        </a>
                                    </div>
                                </td>
                            </tr>
                        @empty
                            <tr>
                                <td colspan="9" class="text-center py-4 text-muted">
                                    <i class="bi bi-receipt fs-1 d-block mb-2 text-secondary"></i>
                                    No sales invoices found.
                                </td>
                            </tr>
                        @endforelse
                    </tbody>
                </table>
            </div>
        </div>
        @if($invoices->hasPages())
            <div class="card-footer bg-white border-top py-3">
                {{ $invoices->links() }}
            </div>
        @endif
    </div>
</div>
@endsection