116 lines
2.8 KiB
PHP
116 lines
2.8 KiB
PHP
<?php namespace App\Models;
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use Illuminate\Database\Eloquent\Model;
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use Illuminate\Database\Eloquent\SoftDeletes;
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class Bundle extends Model
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{
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use SoftDeletes;
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protected $fillable = [
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'name',
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'sku',
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'barcode',
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];
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protected $appends = ['available_stock', 'total_cost'];
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/**
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* Componentes del kit (items individuales)
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*/
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public function items()
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{
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return $this->hasMany(BundleItem::class);
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}
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/**
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* Productos que componen el kit (relación many-to-many)
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*/
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public function inventories()
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{
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return $this->belongsToMany(Inventory::class, 'bundle_items')
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->withPivot('quantity')
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->withTimestamps();
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}
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/**
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* Precio del kit
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*/
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public function price()
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{
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return $this->hasOne(BundlePrice::class);
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}
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/**
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* Stock disponible del kit = mínimo(stock_componente / cantidad_requerida)
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*/
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public function getAvailableStockAttribute(): int
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{
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if ($this->items->isEmpty()) {
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return 0;
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}
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$minStock = PHP_INT_MAX;
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foreach ($this->items as $item) {
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$inventory = $item->inventory;
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$availableStock = $inventory->stock;
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// Cuántos kits puedo hacer con este componente
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$possibleKits = $availableStock > 0 ? floor($availableStock / $item->quantity) : 0;
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$minStock = min($minStock, $possibleKits);
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}
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return $minStock === PHP_INT_MAX ? 0 : (int) $minStock;
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}
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/**
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* Stock disponible en un almacén específico
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*/
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public function stockInWarehouse(int $warehouseId): int
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{
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if ($this->items->isEmpty()) {
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return 0;
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}
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$minStock = PHP_INT_MAX;
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foreach ($this->items as $item) {
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$inventory = $item->inventory;
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$warehouseStock = $inventory->stockInWarehouse($warehouseId);
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$possibleKits = $warehouseStock > 0 ? floor($warehouseStock / $item->quantity) : 0;
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$minStock = min($minStock, $possibleKits);
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}
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return $minStock === PHP_INT_MAX ? 0 : (int) $minStock;
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}
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/**
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* Costo total del kit (suma de costos de componentes)
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*/
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public function getTotalCostAttribute(): float
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{
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$total = 0;
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foreach ($this->items as $item) {
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$componentCost = $item->inventory->price->cost ?? 0;
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$total += $componentCost * $item->quantity;
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}
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return round($total, 2);
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}
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/**
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* Validar si el kit tiene stock disponible
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*/
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public function hasStock(int $quantity = 1, ?int $warehouseId = null): bool
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{
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if ($warehouseId) {
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return $this->stockInWarehouse($warehouseId) >= $quantity;
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}
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return $this->available_stock >= $quantity;
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}
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}
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