@extends('layouts.app')

@section('title', 'Edit NTTN Invoice')

@section('content')
<div class="container-fluid">
    <!-- Page Header -->
    <div class="row mb-4">
        <div class="col-12">
            <div class="d-flex justify-content-between align-items-center">
                <div>
                    <h1 class="h3 mb-0 text-gray-800">
                        <i class="fas fa-edit mr-2"></i>Edit NTTN Invoice
                    </h1>
                    <p class="text-muted">Update NTTN invoice details</p>
                </div>
                <div>
                    <a href="{{ route('reseller.nttn-invoices.index') }}" class="btn btn-secondary">
                        <i class="fas fa-arrow-left mr-2"></i>Back
                    </a>
                </div>
            </div>
        </div>
    </div>

    <form action="{{ route('reseller.nttn-invoices.update', $nttnInvoice->id) }}" method="POST" id="nttnInvoiceForm">
        @csrf
        @method('PUT')

        <div class="row">
            <!-- Invoice Details -->
            <div class="col-md-12 mb-4">
                <div class="card shadow">
                    <div class="card-header bg-primary text-white">
                        <h6 class="m-0 font-weight-bold">Invoice Details</h6>
                    </div>
                    <div class="card-body">
                        <div class="form-group">
                            <label for="sales_invoice_id">Sales Invoice <span class="text-danger">*</span></label>
                            <select name="sales_invoice_id" id="sales_invoice_id" class="form-control" required>
                                @foreach($salesInvoices as $invoice)
                                    <option value="{{ $invoice->id }}" 
                                            {{ $nttnInvoice->sales_invoice_id == $invoice->id ? 'selected' : '' }}
                                            data-items="{{ json_encode($invoice->items) }}">
                                        {{ $invoice->invoice_no }} - 
                                        {{ $invoice->customer->name ?? $invoice->customer_name }} - 
                                        ৳ {{ number_format($invoice->invoice_amount, 2) }}
                                    </option>
                                @endforeach
                            </select>
                        </div>
                        <div class="form-group">
                            <label for="company_name">Company Name</label>
                            <input type="text" name="company_name" id="company_name" class="form-control" 
                                   value="{{ $nttnInvoice->company_name }}" placeholder="Enter company name">
                        </div>
                        <div class="form-group">
                            <label for="status">Status <span class="text-danger">*</span></label>
                            <select name="status" id="status" class="form-control" required>
                                <option value="pending" {{ $nttnInvoice->status == 'pending' ? 'selected' : '' }}>Pending</option>
                                <option value="approved" {{ $nttnInvoice->status == 'approved' ? 'selected' : '' }}>Approved</option>
                                <option value="rejected" {{ $nttnInvoice->status == 'rejected' ? 'selected' : '' }}>Rejected</option>
                            </select>
                        </div>
                    </div>
                </div>
            </div>

            <!-- Invoice Items -->
            <div class="col-md-12 mb-4">
                <div class="card shadow">
                    <div class="card-header bg-info text-white">
                        <h6 class="m-0 font-weight-bold">Invoice Items</h6>
                    </div>
                    <div class="card-body">
                        <div id="items-container">
                            <div class="table-responsive">
                                <table class="table table-bordered">
                                    <thead class="thead-light">
                                        <tr>
                                            <th>Item Name</th>
                                            <th>Description</th>
                                            <th class="text-right">Cost Item Amount</th>
                                            <th class="text-right">Quantity</th>
                                            <th class="text-right">After Cost Amount</th>
                                        </tr>
                                    </thead>
                                    <tbody>
                                        @foreach($nttnInvoice->items as $index => $item)
                                            <tr>
                                                <td>
                                                    <input type="hidden" name="items[{{ $index }}][sales_invoice_item_id]" value="{{ $item->sales_invoice_item_id }}">
                                                    <input type="hidden" name="items[{{ $index }}][item_name]" value="{{ $item->item_name }}">
                                                    <strong>{{ $item->item_name }}</strong>
                                                </td>
                                                <td>
                                                    <textarea name="items[{{ $index }}][description]" class="form-control form-control-sm" rows="2">{{ $item->description }}</textarea>
                                                </td>
                                                <td>
                                                    <input type="number" name="items[{{ $index }}][cost_item_amount]" 
                                                           class="form-control form-control-sm item-cost" 
                                                           step="0.01" min="0" value="{{ $item->cost_item_amount }}" 
                                                           data-index="{{ $index }}" required>
                                                </td>
                                                <td>
                                                    <input type="number" name="items[{{ $index }}][quantity]" 
                                                           class="form-control form-control-sm item-quantity" 
                                                           step="0.01" min="0" value="{{ $item->quantity }}" 
                                                           data-index="{{ $index }}" required>
                                                </td>
                                                <td>
                                                    <input type="number" name="items[{{ $index }}][after_cost_amount]" 
                                                           class="form-control form-control-sm item-after-cost" 
                                                           step="0.01" min="0" value="{{ $item->after_cost_amount }}" 
                                                           data-index="{{ $index }}" required>
                                                </td>
                                            </tr>
                                        @endforeach
                                    </tbody>
                                </table>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>

        <div class="row">
            <div class="col-12">
                <div class="card shadow">
                    <div class="card-body">
                        <div class="d-flex justify-content-between">
                            <div>
                                <strong>Total Cost Amount: </strong>
                                <span id="total-cost-amount" class="text-success h5">৳ {{ number_format($nttnInvoice->total_cost_amount, 2) }}</span>
                            </div>
                            <div>
                                <button type="submit" class="btn btn-primary">
                                    <i class="fas fa-save mr-2"></i>Update NTTN Invoice
                                </button>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </form>
</div>

<script>
document.addEventListener('DOMContentLoaded', function() {
    const totalCostAmountSpan = document.getElementById('total-cost-amount');

    function updateTotal() {
        let total = 0;
        document.querySelectorAll('.item-after-cost').forEach(input => {
            total += parseFloat(input.value) || 0;
        });
        totalCostAmountSpan.textContent = '৳ ' + total.toFixed(2);
    }

    // Add event listeners for calculation
    document.querySelectorAll('.item-cost, .item-quantity, .item-after-cost').forEach(input => {
        input.addEventListener('input', updateTotal);
    });
});
</script>
@endsection