@extends('layouts.app')

@section('page-title', 'Edit Item Stok - ' . $stock->name)

@section('content')
<div class="container-fluid">
    <div class="row">
        <div class="col-12">
            <div class="card">
                <div class="card-header">
                    <h5 class="card-title mb-0">Edit Item Stok</h5>
                </div>
                <div class="card-body">
                    <form action="{{ route('stock.update', $stock) }}" method="POST">
                        @csrf
                        @method('PUT')
                        
                        <!-- Basic Information -->
                        <div class="row mb-4">
                            <div class="col-12">
                                <h6 class="text-primary mb-3">Informasi Dasar</h6>
                            </div>
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="name" class="form-label">Nama Item <span class="text-danger">*</span></label>
                                    <input type="text" class="form-control @error('name') is-invalid @enderror" 
                                           id="name" name="name" value="{{ old('name', $stock->name) }}" required>
                                    @error('name')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="category" class="form-label">Kategori <span class="text-danger">*</span></label>
                                    <select class="form-select @error('category') is-invalid @enderror" 
                                            id="category" name="category" required>
                                        <option value="">Pilih Kategori</option>
                                        <option value="beverage" {{ old('category', $stock->category) == 'beverage' ? 'selected' : '' }}>Minuman</option>
                                        <option value="snack" {{ old('category', $stock->category) == 'snack' ? 'selected' : '' }}>Snack</option>
                                        <option value="other" {{ old('category', $stock->category) == 'other' ? 'selected' : '' }}>Lainnya</option>
                                    </select>
                                    @error('category')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="unit" class="form-label">Satuan <span class="text-danger">*</span></label>
                                    <input type="text" class="form-control @error('unit') is-invalid @enderror" 
                                           id="unit" name="unit" value="{{ old('unit', $stock->unit) }}" required>
                                    <div class="form-text">Contoh: pcs, botol, kaleng, dll</div>
                                    @error('unit')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="barcode" class="form-label">Barcode</label>
                                    <input type="text" class="form-control @error('barcode') is-invalid @enderror" 
                                           id="barcode" name="barcode" value="{{ old('barcode', $stock->barcode) }}">
                                    @error('barcode')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                            <div class="col-12">
                                <div class="mb-3">
                                    <label for="description" class="form-label">Deskripsi</label>
                                    <textarea class="form-control @error('description') is-invalid @enderror" 
                                              id="description" name="description" rows="3">{{ old('description', $stock->description) }}</textarea>
                                    @error('description')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                        </div>

                        <!-- Stock Information -->
                        <div class="row mb-4">
                            <div class="col-12">
                                <h6 class="text-primary mb-3">Informasi Stok</h6>
                            </div>
                            <div class="col-md-4">
                                <div class="mb-3">
                                    <label class="form-label">Stok Saat Ini</label>
                                    <input type="text" class="form-control" value="{{ $stock->current_stock }} {{ $stock->unit }}" readonly>
                                    <div class="form-text">Gunakan menu "Sesuaikan Stok" untuk mengubah stok</div>
                                </div>
                            </div>
                            <div class="col-md-4">
                                <div class="mb-3">
                                    <label for="min_stock" class="form-label">Stok Minimum <span class="text-danger">*</span></label>
                                    <input type="number" class="form-control @error('min_stock') is-invalid @enderror" 
                                           id="min_stock" name="min_stock" value="{{ old('min_stock', $stock->min_stock) }}" 
                                           min="0" required>
                                    <div class="form-text">Alert akan muncul jika stok mencapai batas ini</div>
                                    @error('min_stock')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                            <div class="col-md-4">
                                <div class="mb-3">
                                    <label for="supplier" class="form-label">Supplier</label>
                                    <input type="text" class="form-control @error('supplier') is-invalid @enderror" 
                                           id="supplier" name="supplier" value="{{ old('supplier', $stock->supplier) }}">
                                    @error('supplier')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                        </div>

                        <!-- Price Information -->
                        <div class="row mb-4">
                            <div class="col-12">
                                <h6 class="text-primary mb-3">Informasi Harga</h6>
                            </div>
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="purchase_price" class="form-label">Harga Beli <span class="text-danger">*</span></label>
                                    <input type="number" class="form-control @error('purchase_price') is-invalid @enderror" 
                                           id="purchase_price" name="purchase_price" value="{{ old('purchase_price', $stock->purchase_price) }}" 
                                           min="0" step="0.01" required>
                                    @error('purchase_price')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                            <div class="col-md-6">
                                <div class="mb-3">
                                    <label for="selling_price" class="form-label">Harga Jual <span class="text-danger">*</span></label>
                                    <input type="number" class="form-control @error('selling_price') is-invalid @enderror" 
                                           id="selling_price" name="selling_price" value="{{ old('selling_price', $stock->selling_price) }}" 
                                           min="0" step="0.01" required>
                                    @error('selling_price')
                                        <div class="invalid-feedback">{{ $message }}</div>
                                    @enderror
                                </div>
                            </div>
                            <div class="col-12">
                                <div class="alert alert-info">
                                    <i class="fas fa-info-circle me-2"></i>
                                    <strong>Margin Keuntungan:</strong> <span id="profit-margin">{{ number_format($stock->profit_margin, 1) }}%</span>
                                </div>
                            </div>
                        </div>

                        <!-- Status -->
                        <div class="row mb-4">
                            <div class="col-12">
                                <div class="form-check">
                                    <input class="form-check-input" type="checkbox" id="is_active" name="is_active" 
                                           value="1" {{ old('is_active', $stock->is_active) ? 'checked' : '' }}>
                                    <label class="form-check-label" for="is_active">
                                        Item Aktif (dapat digunakan di restoran)
                                    </label>
                                </div>
                            </div>
                        </div>

                        <!-- Actions -->
                        <div class="row">
                            <div class="col-12">
                                <div class="d-flex justify-content-end gap-2">
                                    <a href="{{ route('stock.show', $stock) }}" class="btn btn-secondary">
                                        <i class="fas fa-times me-2"></i>Batal
                                    </a>
                                    <button type="submit" class="btn btn-primary">
                                        <i class="fas fa-save me-2"></i>Update Item
                                    </button>
                                </div>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

@section('scripts')
<script>
document.addEventListener('DOMContentLoaded', function() {
    const purchasePriceInput = document.getElementById('purchase_price');
    const sellingPriceInput = document.getElementById('selling_price');
    const profitMarginSpan = document.getElementById('profit-margin');

    function calculateProfitMargin() {
        const purchasePrice = parseFloat(purchasePriceInput.value) || 0;
        const sellingPrice = parseFloat(sellingPriceInput.value) || 0;
        
        if (purchasePrice > 0) {
            const margin = ((sellingPrice - purchasePrice) / purchasePrice) * 100;
            profitMarginSpan.textContent = margin.toFixed(1) + '%';
            
            if (margin > 0) {
                profitMarginSpan.className = 'text-success';
            } else if (margin < 0) {
                profitMarginSpan.className = 'text-danger';
            } else {
                profitMarginSpan.className = 'text-muted';
            }
        } else {
            profitMarginSpan.textContent = '0%';
            profitMarginSpan.className = 'text-muted';
        }
    }

    purchasePriceInput.addEventListener('input', calculateProfitMargin);
    sellingPriceInput.addEventListener('input', calculateProfitMargin);
    
    // Calculate on page load
    calculateProfitMargin();
});
</script>
@endsection