@extends('layouts.app')

@section('title', $supplier->company_name)
@section('page_title', 'Supplier Profile & Ledger')

@section('content')
<div class="row g-4">
    <!-- Profile details left panel -->
    <div class="col-lg-4">
        <div class="card border-0 shadow-sm p-4 mb-4">
            <h5 class="fw-bold mb-3 text-dark">Supplier Info</h5>
            <div class="d-flex align-items-center gap-2 mb-3">
                <span class="badge bg-primary">{{ $supplier->supplier_code }}</span>
                <span class="badge bg-{{ $supplier->status === 'active' ? 'success' : 'secondary' }}">{{ ucfirst($supplier->status) }}</span>
            </div>

            <div class="mb-3">
                <small class="text-secondary d-block">Company Name</small>
                <span class="fw-semibold text-dark">{{ $supplier->company_name }}</span>
            </div>

            <div class="mb-3">
                <small class="text-secondary d-block">Contact Person</small>
                <span class="fw-semibold text-dark">{{ $supplier->contact_person }}</span>
            </div>

            <div class="mb-3">
                <small class="text-secondary d-block">Phone</small>
                <span class="fw-semibold text-dark">{{ $supplier->phone }}</span>
            </div>

            @if($supplier->email)
            <div class="mb-3">
                <small class="text-secondary d-block">Email</small>
                <span class="fw-semibold text-dark">{{ $supplier->email }}</span>
            </div>
            @endif

            @if($supplier->tin)
            <div class="mb-3">
                <small class="text-secondary d-block">TIN</small>
                <span class="fw-semibold text-dark">{{ $supplier->tin }}</span>
            </div>
            @endif

            <div class="mb-4 border-top pt-3">
                <small class="text-secondary d-block">Accounts Payable Balance</small>
                <span class="fw-bold fs-4 text-{{ $supplier->outstanding_balance > 0 ? 'danger' : 'success' }}">
                    {{ number_format($supplier->outstanding_balance) }} UGX
                </span>
            </div>

            <div class="d-grid gap-2">
                <button class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#createPOModal">
                    <i class="bi bi-plus-circle"></i> Create Purchase Order
                </button>
                <button class="btn btn-outline-secondary" data-bs-toggle="modal" data-bs-target="#editSupplierModal">
                    <i class="bi bi-pencil-square"></i> Edit Details
                </button>
                <a href="{{ route('suppliers.index') }}" class="btn btn-light">Back to Suppliers</a>
            </div>
        </div>
    </div>

    <!-- Right panel tabs -->
    <div class="col-lg-8">
        <div class="card border-0 shadow-sm p-4 h-100">
            <div class="d-flex align-items-center justify-content-between mb-4 pb-2 border-bottom">
                <nav class="nav nav-pills" id="supplierTabs" role="tablist">
                    <button class="nav-link active me-2" id="ledger-tab" data-bs-toggle="tab" data-bs-target="#ledgerPanel" type="button">
                        <i class="bi bi-journal-text"></i> Accounts Payable Ledger
                    </button>
                    <button class="nav-link" id="po-tab" data-bs-toggle="tab" data-bs-target="#poPanel" type="button">
                        <i class="bi bi-cart4"></i> Purchase Orders Log
                    </button>
                </nav>
            </div>

            <div class="tab-content" id="supplierTabsContent">
                <!-- Ledger panel -->
                <div class="tab-pane fade show active" id="ledgerPanel">
                    <div class="table-responsive">
                        <table class="table table-hover align-middle mb-0">
                            <thead>
                                <tr>
                                    <th>Date</th>
                                    <th>Reference</th>
                                    <th>Description</th>
                                    <th class="text-end">Debit (-)</th>
                                    <th class="text-end">Credit (+)</th>
                                    <th class="text-end">Balance</th>
                                </tr>
                            </thead>
                            <tbody>
                                @forelse($ledgerEntries as $entry)
                                    <tr>
                                        <td>{{ $entry->created_at->format('M d, Y H:i') }}</td>
                                        <td><code class="small">{{ $entry->reference }}</code></td>
                                        <td class="small">{{ $entry->description }}</td>
                                        <td class="text-end text-success fw-semibold">
                                            {{ $entry->debit > 0 ? number_format($entry->debit) : '-' }}
                                        </td>
                                        <td class="text-end text-danger fw-semibold">
                                            {{ $entry->credit > 0 ? number_format($entry->credit) : '-' }}
                                        </td>
                                        <td class="text-end fw-bold text-dark">
                                            {{ number_format($entry->balance) }} UGX
                                        </td>
                                    </tr>
                                @empty
                                    <tr>
                                        <td colspan="6" class="text-center py-5 text-muted">No payable entries yet.</td>
                                    </tr>
                                @endforelse
                            </tbody>
                        </table>
                    </div>
                </div>

                <!-- Purchase Orders panel -->
                <div class="tab-pane fade" id="poPanel">
                    <div class="table-responsive">
                        <table class="table table-hover align-middle mb-0">
                            <thead>
                                <tr>
                                    <th>PO Number</th>
                                    <th>Date Ordered</th>
                                    <th class="text-end">Total Amount</th>
                                    <th>Status</th>
                                    <th class="text-end">Actions</th>
                                </tr>
                            </thead>
                            <tbody>
                                @forelse($purchaseOrders as $po)
                                    <tr>
                                        <td class="fw-bold">{{ $po->po_number }}</td>
                                        <td>{{ $po->order_date->format('M d, Y') }}</td>
                                        <td class="text-end fw-semibold">{{ number_format($po->total) }} UGX</td>
                                        <td>
                                            <span class="badge bg-{{ $po->status === 'received' ? 'success' : 'warning' }}">
                                                {{ ucfirst($po->status) }}
                                            </span>
                                        </td>
                                        <td class="text-end">
                                            @if($po->status === 'ordered')
                                                <form action="{{ route('suppliers.po.receive', $po->id) }}" method="POST" class="d-inline">
                                                    @csrf
                                                    <button type="submit" class="btn btn-sm btn-success">
                                                        <i class="bi bi-box-arrow-in-down"></i> Receive Stock
                                                    </button>
                                                </form>
                                            @elseif($po->status === 'received' && $po->received_at)
                                                <span class="text-muted small">Received at {{ $po->received_at->format('M d, Y') }}</span>
                                            @else
                                                <span class="badge bg-secondary">{{ ucfirst($po->status) }}</span>
                                            @endif
                                        </td>
                                    </tr>
                                @empty
                                    <tr>
                                        <td colspan="5" class="text-center py-5 text-muted">No purchase orders logged yet.</td>
                                    </tr>
                                @endforelse
                            </tbody>
                        </table>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Create Purchase Order Modal -->
<div class="modal fade" id="createPOModal" tabindex="-1">
    <div class="modal-dialog modal-dialog-centered modal-lg">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title fw-bold">Create Purchase Order</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <form action="{{ route('suppliers.po.store', $supplier->id) }}" method="POST">
                @csrf
                <div class="modal-body">
                    <div class="mb-3">
                        <label class="form-label text-secondary small fw-bold">EXPECTED DELIVERY DATE</label>
                        <input type="date" class="form-control" name="expected_delivery">
                    </div>

                    <h6 class="fw-bold mt-4 mb-3 text-primary">PO Line Items</h6>
                    <div class="table-responsive border rounded p-2 mb-3">
                        <table class="table align-middle table-borderless mb-0">
                            <thead>
                                <tr class="border-bottom">
                                    <th style="width: 40%;">Product Variant</th>
                                    <th style="width: 25%;">Quantity</th>
                                    <th style="width: 30%;">Buying Price Unit (UGX)</th>
                                    <th style="width: 5%;"></th>
                                </tr>
                            </thead>
                            <tbody id="poItemRows">
                                <!-- First dynamic row -->
                                <tr>
                                    <td>
                                        <select class="form-select" name="items[0][variant_id]" required>
                                            @foreach($variants as $v)
                                                <option value="{{ $v->id }}">{{ $v->variant_name }} ({{ $v->sku }})</option>
                                            @endforeach
                                        </select>
                                    </td>
                                    <td>
                                        <input type="number" class="form-control" name="items[0][quantity]" required min="1" value="1">
                                    </td>
                                    <td>
                                        <input type="number" class="form-control" name="items[0][unit_price]" required min="0" placeholder="UGX price">
                                    </td>
                                    <td>
                                        <button type="button" class="btn btn-outline-danger border-0 btn-sm" onclick="removeRow(this)"><i class="bi bi-trash"></i></button>
                                    </td>
                                </tr>
                            </tbody>
                        </table>
                    </div>
                    <button type="button" class="btn btn-outline-primary btn-sm mb-3" onclick="addRow()"><i class="bi bi-plus-circle"></i> Add Row</button>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-light" data-bs-dismiss="modal">Cancel</button>
                    <button type="submit" class="btn btn-primary">Process PO</button>
                </div>
            </form>
        </div>
    </div>
</div>

<!-- Edit Supplier Modal -->
<div class="modal fade" id="editSupplierModal" tabindex="-1">
    <div class="modal-dialog modal-dialog-centered">
        <div class="modal-content">
            <div class="modal-header">
                <h5 class="modal-title fw-bold">Edit Supplier Details</h5>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <form action="{{ route('suppliers.update', $supplier->id) }}" method="POST">
                @csrf
                @method('PUT')
                <div class="modal-body">
                    <div class="mb-3">
                        <label class="form-label text-secondary small fw-bold">COMPANY NAME *</label>
                        <input type="text" class="form-control" name="company_name" value="{{ $supplier->company_name }}" required>
                    </div>
                    <div class="mb-3">
                        <label class="form-label text-secondary small fw-bold">CONTACT PERSON *</label>
                        <input type="text" class="form-control" name="contact_person" value="{{ $supplier->contact_person }}" required>
                    </div>
                    <div class="mb-3">
                        <label class="form-label text-secondary small fw-bold">PHONE NUMBER *</label>
                        <input type="text" class="form-control" name="phone" value="{{ $supplier->phone }}" required>
                    </div>
                    <div class="mb-3">
                        <label class="form-label text-secondary small fw-bold">EMAIL ADDRESS</label>
                        <input type="email" class="form-control" name="email" value="{{ $supplier->email }}">
                    </div>
                    <div class="mb-3">
                        <label class="form-label text-secondary small fw-bold">ADDRESS</label>
                        <input type="text" class="form-control" name="address" value="{{ $supplier->address }}">
                    </div>
                    <div class="mb-3">
                        <label class="form-label text-secondary small fw-bold">TIN NUMBER</label>
                        <input type="text" class="form-control" name="tin" value="{{ $supplier->tin }}">
                    </div>
                    <div class="mb-3">
                        <label class="form-label text-secondary small fw-bold">STATUS *</label>
                        <select class="form-select" name="status" required>
                            <option value="active" {{ $supplier->status === 'active' ? 'selected' : '' }}>Active</option>
                            <option value="inactive" {{ $supplier->status === 'inactive' ? 'selected' : '' }}>Inactive</option>
                        </select>
                    </div>
                </div>
                <div class="modal-footer">
                    <button type="button" class="btn btn-light" data-bs-dismiss="modal">Cancel</button>
                    <button type="submit" class="btn btn-primary">Save Changes</button>
                </div>
            </form>
        </div>
    </div>
</div>
@endsection

@section('scripts')
<script>
    let rowIndex = 1;

    function addRow() {
        const tbody = document.getElementById('poItemRows');
        const selectOptions = document.querySelector('#poItemRows select').innerHTML;
        
        const tr = document.createElement('tr');
        tr.innerHTML = `
            <td>
                <select class="form-select" name="items[${rowIndex}][variant_id]" required>
                    ${selectOptions}
                </select>
            </td>
            <td>
                <input type="number" class="form-control" name="items[${rowIndex}][quantity]" required min="1" value="1">
            </td>
            <td>
                <input type="number" class="form-control" name="items[${rowIndex}][unit_price]" required min="0" placeholder="UGX price">
            </td>
            <td>
                <button type="button" class="btn btn-outline-danger border-0 btn-sm" onclick="removeRow(this)"><i class="bi bi-trash"></i></button>
            </td>
        `;
        tbody.appendChild(tr);
        rowIndex++;
    }

    function removeRow(btn) {
        const row = btn.closest('tr');
        const tbody = document.getElementById('poItemRows');
        if (tbody.children.length > 1) {
            row.remove();
        } else {
            alert("At least one purchase item is required.");
        }
    }
</script>
@endsection