579 lines
26 KiB
PHP
579 lines
26 KiB
PHP
<?php
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namespace App\Modules\Inventory\Services;
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use App\Modules\Inventory\Contracts\InventoryServiceInterface;
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use App\Modules\Inventory\Models\Inventory;
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use App\Modules\Inventory\Models\Warehouse;
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use App\Modules\Inventory\Models\Product;
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use Illuminate\Support\Facades\DB;
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class InventoryService implements InventoryServiceInterface
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{
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public function getAllWarehouses()
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{
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return Warehouse::all();
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}
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public function getAllProducts()
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{
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return Product::with(['baseUnit', 'largeUnit'])->get();
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}
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public function getUnits()
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{
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return \App\Modules\Inventory\Models\Unit::all();
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}
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public function getInventoriesByIds(array $ids, array $with = [])
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{
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return Inventory::whereIn('id', $ids)->with($with)->get();
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}
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public function getProduct(int $id)
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{
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return Product::with(['baseUnit', 'largeUnit'])->find($id);
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}
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public function getProductsByIds(array $ids)
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{
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return Product::whereIn('id', $ids)->with(['baseUnit', 'largeUnit'])->get();
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}
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public function getProductsByName(string $name)
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{
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return Product::where('name', 'like', "%{$name}%")->with(['baseUnit', 'largeUnit'])->get();
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}
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public function getWarehouse(int $id)
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{
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return Warehouse::find($id);
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}
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public function checkStock(int $productId, int $warehouseId, float $quantity): bool
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{
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$stock = Inventory::where('product_id', $productId)
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->where('warehouse_id', $warehouseId)
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->sum('quantity');
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return $stock >= $quantity;
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}
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public function decreaseStock(int $productId, int $warehouseId, float $quantity, ?string $reason = null, bool $force = false, ?string $slot = null): void
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{
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DB::transaction(function () use ($productId, $warehouseId, $quantity, $reason, $force, $slot) {
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$query = Inventory::where('product_id', $productId)
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->where('warehouse_id', $warehouseId)
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->where('quantity', '>', 0);
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if ($slot) {
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$query->where('location', $slot);
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}
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$inventories = $query->orderBy('arrival_date', 'asc')
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->get();
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$remainingToDecrease = $quantity;
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foreach ($inventories as $inventory) {
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if ($remainingToDecrease <= 0) break;
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$decreaseAmount = min($inventory->quantity, $remainingToDecrease);
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$this->decreaseInventoryQuantity($inventory->id, $decreaseAmount, $reason);
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$remainingToDecrease -= $decreaseAmount;
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}
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if ($remainingToDecrease > 0) {
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if ($force) {
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// Find any existing inventory record in this warehouse/slot to subtract from, or create one
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$query = Inventory::where('product_id', $productId)
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->where('warehouse_id', $warehouseId);
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if ($slot) {
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$query->where('location', $slot);
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}
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$inventory = $query->first();
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if (!$inventory) {
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$inventory = Inventory::create([
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'warehouse_id' => $warehouseId,
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'product_id' => $productId,
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'location' => $slot,
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'quantity' => 0,
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'unit_cost' => 0,
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'total_value' => 0,
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'batch_number' => 'POS-AUTO-' . ($slot ? $slot . '-' : '') . time(),
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'arrival_date' => now(),
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'origin_country' => 'TW',
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'quality_status' => 'normal',
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]);
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}
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$this->decreaseInventoryQuantity($inventory->id, $remainingToDecrease, $reason);
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} else {
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throw new \Exception("庫存不足,無法扣除所有請求的數量。");
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}
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}
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});
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}
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public function getInventoriesByWarehouse(int $warehouseId)
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{
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return Inventory::with(['product.baseUnit', 'product.largeUnit'])
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->where('warehouse_id', $warehouseId)
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->where('quantity', '>', 0)
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->orderBy('arrival_date', 'asc')
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->get();
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}
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public function createInventoryRecord(array $data)
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{
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return DB::transaction(function () use ($data) {
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// 嘗試查找是否已有相同批號的庫存
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$inventory = Inventory::where('warehouse_id', $data['warehouse_id'])
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->where('product_id', $data['product_id'])
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->where('batch_number', $data['batch_number'] ?? null)
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->first();
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$balanceBefore = 0;
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if ($inventory) {
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// 若存在,則更新數量與相關資訊 (鎖定行以避免併發問題)
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$inventory = Inventory::lockForUpdate()->find($inventory->id);
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$balanceBefore = $inventory->quantity;
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// 加權平均成本計算 (可選,這裡先採簡單邏輯:若有新成本則更新,否則沿用)
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// 若本次入庫有指定成本,則更新該批次單價 (假設同批號成本相同)
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if (isset($data['unit_cost'])) {
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$inventory->unit_cost = $data['unit_cost'];
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}
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$inventory->quantity += $data['quantity'];
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// 更新總價值
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$inventory->total_value = $inventory->quantity * $inventory->unit_cost;
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// 更新其他可能變更的欄位 (如最後入庫日)
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$inventory->arrival_date = $data['arrival_date'] ?? $inventory->arrival_date;
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$inventory->save();
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} else {
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// 若不存在,則建立新紀錄
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$unitCost = $data['unit_cost'] ?? 0;
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$inventory = Inventory::create([
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'warehouse_id' => $data['warehouse_id'],
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'product_id' => $data['product_id'],
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'quantity' => $data['quantity'],
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'unit_cost' => $unitCost,
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'total_value' => $data['quantity'] * $unitCost,
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'batch_number' => $data['batch_number'] ?? null,
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'box_number' => $data['box_number'] ?? null,
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'origin_country' => $data['origin_country'] ?? 'TW',
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'arrival_date' => $data['arrival_date'] ?? now(),
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'expiry_date' => $data['expiry_date'] ?? null,
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'quality_status' => $data['quality_status'] ?? 'normal',
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'source_purchase_order_id' => $data['source_purchase_order_id'] ?? null,
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]);
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}
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\App\Modules\Inventory\Models\InventoryTransaction::create([
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'inventory_id' => $inventory->id,
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'type' => '入庫',
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'quantity' => $data['quantity'],
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'unit_cost' => $inventory->unit_cost, // 記錄當下成本
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'balance_before' => $balanceBefore,
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'balance_after' => $inventory->quantity,
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'reason' => $data['reason'] ?? '手動入庫',
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'reference_type' => $data['reference_type'] ?? null,
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'reference_id' => $data['reference_id'] ?? null,
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'user_id' => auth()->id(),
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'actual_time' => now(),
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]);
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return $inventory;
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});
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}
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public function decreaseInventoryQuantity(int $inventoryId, float $quantity, ?string $reason = null, ?string $referenceType = null, $referenceId = null): void
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{
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DB::transaction(function () use ($inventoryId, $quantity, $reason, $referenceType, $referenceId) {
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$inventory = Inventory::lockForUpdate()->findOrFail($inventoryId);
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$balanceBefore = $inventory->quantity;
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$inventory->decrement('quantity', $quantity); // decrement 不會自動觸發 total_value 更新
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// 需要手動更新總價值
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$inventory->refresh();
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$inventory->total_value = $inventory->quantity * $inventory->unit_cost;
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$inventory->save();
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\App\Modules\Inventory\Models\InventoryTransaction::create([
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'inventory_id' => $inventory->id,
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'type' => '出庫',
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'quantity' => -$quantity,
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'unit_cost' => $inventory->unit_cost, // 記錄出庫時的成本
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'balance_before' => $balanceBefore,
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'balance_after' => $inventory->quantity,
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'reason' => $reason ?? '庫存扣減',
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'reference_type' => $referenceType,
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'reference_id' => $referenceId,
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'user_id' => auth()->id(),
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'actual_time' => now(),
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]);
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});
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}
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public function findInventoryByBatch(int $warehouseId, int $productId, ?string $batchNumber)
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{
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return Inventory::where('warehouse_id', $warehouseId)
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->where('product_id', $productId)
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->where('batch_number', $batchNumber)
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->first();
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}
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/**
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* 即時庫存查詢:統計卡片 + 分頁明細
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*/
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public function getStockQueryData(array $filters = [], int $perPage = 10): array
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{
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$today = now()->toDateString();
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$expiryThreshold = now()->addDays(30)->toDateString();
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// 基礎查詢
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$query = Inventory::query()
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->join('products', 'inventories.product_id', '=', 'products.id')
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->join('warehouses', 'inventories.warehouse_id', '=', 'warehouses.id')
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->leftJoin('categories', 'products.category_id', '=', 'categories.id')
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->leftJoin('warehouse_product_safety_stocks as ss', function ($join) {
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$join->on('inventories.warehouse_id', '=', 'ss.warehouse_id')
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->on('inventories.product_id', '=', 'ss.product_id');
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})
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->whereNull('inventories.deleted_at')
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->select([
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'inventories.id',
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'inventories.warehouse_id',
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'inventories.product_id',
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'inventories.quantity',
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'inventories.batch_number',
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'inventories.expiry_date',
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'inventories.location',
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'inventories.quality_status',
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'products.code as product_code',
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'products.name as product_name',
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'categories.name as category_name',
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'warehouses.name as warehouse_name',
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'ss.safety_stock',
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]);
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// 篩選:倉庫
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if (!empty($filters['warehouse_id'])) {
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$query->where('inventories.warehouse_id', $filters['warehouse_id']);
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}
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// 篩選:分類
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if (!empty($filters['category_id'])) {
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$query->where('products.category_id', $filters['category_id']);
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}
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// 篩選:關鍵字(商品代碼或名稱)
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if (!empty($filters['search'])) {
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$search = $filters['search'];
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$query->where(function ($q) use ($search) {
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$q->where('products.code', 'like', "%{$search}%")
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->orWhere('products.name', 'like', "%{$search}%");
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});
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}
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// 篩選:狀態 (改為對齊聚合統計的判斷標準)
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if (!empty($filters['status'])) {
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switch ($filters['status']) {
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case 'low_stock':
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$query->whereIn(DB::raw('(inventories.warehouse_id, inventories.product_id)'), function ($sub) {
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$sub->select('i2.warehouse_id', 'i2.product_id')
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->from('inventories as i2')
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->join('warehouse_product_safety_stocks as ss2', function ($join) {
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$join->on('i2.warehouse_id', '=', 'ss2.warehouse_id')
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->on('i2.product_id', '=', 'ss2.product_id');
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})
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->whereNull('i2.deleted_at')
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->groupBy('i2.warehouse_id', 'i2.product_id', 'ss2.safety_stock')
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->havingRaw('SUM(i2.quantity) <= ss2.safety_stock');
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});
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break;
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case 'negative':
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$query->whereIn(DB::raw('(inventories.warehouse_id, inventories.product_id)'), function ($sub) {
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$sub->select('i2.warehouse_id', 'i2.product_id')
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->from('inventories as i2')
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->whereNull('i2.deleted_at')
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->groupBy('i2.warehouse_id', 'i2.product_id')
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->havingRaw('SUM(i2.quantity) < 0');
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});
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break;
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case 'expiring':
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$query->whereNotNull('inventories.expiry_date')
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->where('inventories.expiry_date', '>', $today)
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->where('inventories.expiry_date', '<=', $expiryThreshold);
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break;
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case 'expired':
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$query->whereNotNull('inventories.expiry_date')
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->where('inventories.expiry_date', '<=', $today);
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break;
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case 'abnormal':
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// 只要該「倉庫-品項」對應的總庫存有低庫存、負庫存,或該批次已過期/即將過期
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$query->where(function ($q) use ($today, $expiryThreshold) {
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// 1. 低庫存或負庫存 (依聚合判斷)
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$q->whereIn(DB::raw('(inventories.warehouse_id, inventories.product_id)'), function ($sub) {
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$sub->select('i3.warehouse_id', 'i3.product_id')
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->from('inventories as i3')
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->leftJoin('warehouse_product_safety_stocks as ss3', function ($join) {
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$join->on('i3.warehouse_id', '=', 'ss3.warehouse_id')
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->on('i3.product_id', '=', 'ss3.product_id');
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})
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->whereNull('i3.deleted_at')
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->groupBy('i3.warehouse_id', 'i3.product_id', 'ss3.safety_stock')
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->havingRaw('SUM(i3.quantity) < 0 OR (ss3.safety_stock IS NOT NULL AND SUM(i3.quantity) <= ss3.safety_stock)');
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})
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// 2. 或該批次效期異常
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->orWhere(function ($q_batch) use ($expiryThreshold) {
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$q_batch->whereNotNull('inventories.expiry_date')
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->where('inventories.expiry_date', '<=', $expiryThreshold);
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});
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});
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break;
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}
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}
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// 排序
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$sortBy = $filters['sort_by'] ?? 'products.code';
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$sortOrder = $filters['sort_order'] ?? 'asc';
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$allowedSorts = ['products.code', 'products.name', 'warehouses.name', 'inventories.quantity', 'inventories.expiry_date'];
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if (in_array($sortBy, $allowedSorts)) {
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$query->orderBy($sortBy, $sortOrder);
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} else {
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$query->orderBy('products.code', 'asc');
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}
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// 統計卡片(預設無篩選條件下的全域統計,改為明細筆數計數以對齊顯示)
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// 1. 庫存明細總數
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$totalItems = DB::table('inventories')
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->whereNull('deleted_at')
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->count();
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// 2. 低庫存明細數:只要該明細所屬的「倉庫+商品」總量低於安全庫存,則所有相關明細都計入
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$lowStockCount = DB::table('inventories as i')
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->join('warehouse_product_safety_stocks as ss', function ($join) {
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$join->on('i.warehouse_id', '=', 'ss.warehouse_id')
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->on('i.product_id', '=', 'ss.product_id');
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})
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->whereNull('i.deleted_at')
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->whereIn(DB::raw('(i.warehouse_id, i.product_id)'), function ($sub) {
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$sub->select('i2.warehouse_id', 'i2.product_id')
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->from('inventories as i2')
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->whereNull('i2.deleted_at')
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->groupBy('i2.warehouse_id', 'i2.product_id')
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->havingRaw('SUM(i2.quantity) <= (SELECT safety_stock FROM warehouse_product_safety_stocks WHERE warehouse_id = i2.warehouse_id AND product_id = i2.product_id LIMIT 1)');
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})
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->count();
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// 3. 負庫存明細數
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$negativeCount = DB::table('inventories as i')
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->whereNull('i.deleted_at')
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->whereIn(DB::raw('(i.warehouse_id, i.product_id)'), function ($sub) {
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$sub->select('i2.warehouse_id', 'i2.product_id')
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->from('inventories as i2')
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->whereNull('i2.deleted_at')
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->groupBy('i2.warehouse_id', 'i2.product_id')
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->havingRaw('SUM(i2.quantity) < 0');
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})
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->count();
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// 4. 即將過期明細數
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$expiringCount = DB::table('inventories')
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->whereNull('deleted_at')
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->whereNotNull('expiry_date')
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->where('expiry_date', '<=', $expiryThreshold)
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->count();
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// 分頁
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$paginated = $query->paginate($perPage)->withQueryString();
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// 為每筆紀錄附加最後入庫/出庫時間 + 狀態
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$items = collect($paginated->items())->map(function ($item) use ($today, $expiryThreshold) {
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$lastIn = \App\Modules\Inventory\Models\InventoryTransaction::where('inventory_id', $item->id)
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->where('type', '入庫')
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->orderByDesc('actual_time')
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->value('actual_time');
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$lastOut = \App\Modules\Inventory\Models\InventoryTransaction::where('inventory_id', $item->id)
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->where('type', '出庫')
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->orderByDesc('actual_time')
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->value('actual_time');
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// 計算狀態
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$statuses = [];
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if ($item->quantity < 0) {
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$statuses[] = 'negative';
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}
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if ($item->safety_stock !== null && $item->quantity <= $item->safety_stock && $item->quantity >= 0) {
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$statuses[] = 'low_stock';
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}
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if ($item->expiry_date) {
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if ($item->expiry_date <= $today) {
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$statuses[] = 'expired';
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} elseif ($item->expiry_date <= $expiryThreshold) {
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$statuses[] = 'expiring';
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}
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}
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if (empty($statuses)) {
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$statuses[] = 'normal';
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}
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return [
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'id' => $item->id,
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'product_code' => $item->product_code,
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'product_name' => $item->product_name,
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'category_name' => $item->category_name,
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'warehouse_name' => $item->warehouse_name,
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'batch_number' => $item->batch_number,
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'quantity' => $item->quantity,
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'safety_stock' => $item->safety_stock,
|
|
'expiry_date' => $item->expiry_date ? \Carbon\Carbon::parse($item->expiry_date)->toDateString() : null,
|
|
'location' => $item->location,
|
|
'quality_status' => $item->quality_status ?? null,
|
|
'last_inbound' => $lastIn ? \Carbon\Carbon::parse($lastIn)->toDateString() : null,
|
|
'last_outbound' => $lastOut ? \Carbon\Carbon::parse($lastOut)->toDateString() : null,
|
|
'statuses' => $statuses,
|
|
];
|
|
});
|
|
|
|
return [
|
|
'summary' => [
|
|
'totalItems' => $totalItems,
|
|
'lowStockCount' => $lowStockCount,
|
|
'negativeCount' => $negativeCount,
|
|
'expiringCount' => $expiringCount,
|
|
],
|
|
'data' => $items->toArray(),
|
|
'pagination' => [
|
|
'total' => $paginated->total(),
|
|
'per_page' => $paginated->perPage(),
|
|
'current_page' => $paginated->currentPage(),
|
|
'last_page' => $paginated->lastPage(),
|
|
'links' => $paginated->linkCollection()->toArray(),
|
|
],
|
|
];
|
|
}
|
|
|
|
public function getDashboardStats(): array
|
|
{
|
|
$today = now()->toDateString();
|
|
$expiryThreshold = now()->addDays(30)->toDateString();
|
|
|
|
// 1. 庫存品項數 (Unique Product-Warehouse)
|
|
$totalItems = DB::table('inventories')
|
|
->whereNull('deleted_at')
|
|
->distinct()
|
|
->count(DB::raw('CONCAT(warehouse_id, "-", product_id)'));
|
|
|
|
// 2. 低庫存 (品項計數)
|
|
$lowStockCount = DB::table('warehouse_product_safety_stocks as ss')
|
|
->join(DB::raw('(SELECT warehouse_id, product_id, SUM(quantity) as total_qty FROM inventories WHERE deleted_at IS NULL GROUP BY warehouse_id, product_id) as inv'),
|
|
function ($join) {
|
|
$join->on('ss.warehouse_id', '=', 'inv.warehouse_id')
|
|
->on('ss.product_id', '=', 'inv.product_id');
|
|
})
|
|
->whereRaw('inv.total_qty <= ss.safety_stock')
|
|
->count();
|
|
|
|
// 3. 負庫存 (品項計數)
|
|
$negativeCount = DB::table(DB::raw('(SELECT warehouse_id, product_id, SUM(quantity) as total_qty FROM inventories WHERE deleted_at IS NULL GROUP BY warehouse_id, product_id) as inv'))
|
|
->where('total_qty', '<', 0)
|
|
->count();
|
|
|
|
// 4. 即將過期 (品項計數)
|
|
$expiringCount = DB::table('inventories')
|
|
->whereNull('deleted_at')
|
|
->whereNotNull('expiry_date')
|
|
->where('expiry_date', '<=', $expiryThreshold)
|
|
->distinct()
|
|
->count(DB::raw('CONCAT(warehouse_id, "-", product_id)'));
|
|
|
|
// 異常庫存前 10 筆 (明細面依然以個別批次為主,供快速跳轉)
|
|
$abnormalItems = Inventory::query()
|
|
->join('products', 'inventories.product_id', '=', 'products.id')
|
|
->join('warehouses', 'inventories.warehouse_id', '=', 'warehouses.id')
|
|
->leftJoin('warehouse_product_safety_stocks as ss', function ($join) {
|
|
$join->on('inventories.warehouse_id', '=', 'ss.warehouse_id')
|
|
->on('inventories.product_id', '=', 'ss.product_id');
|
|
})
|
|
->whereNull('inventories.deleted_at')
|
|
->where(function ($q) use ($today, $expiryThreshold) {
|
|
// 1. 屬於低庫存或負庫存品項的批次
|
|
$q->whereIn(DB::raw('(inventories.warehouse_id, inventories.product_id)'), function ($sub) {
|
|
$sub->select('i3.warehouse_id', 'i3.product_id')
|
|
->from('inventories as i3')
|
|
->leftJoin('warehouse_product_safety_stocks as ss3', function ($join) {
|
|
$join->on('i3.warehouse_id', '=', 'ss3.warehouse_id')
|
|
->on('i3.product_id', '=', 'ss3.product_id');
|
|
})
|
|
->whereNull('i3.deleted_at')
|
|
->groupBy('i3.warehouse_id', 'i3.product_id', 'ss3.safety_stock')
|
|
->havingRaw('SUM(i3.quantity) < 0 OR (ss3.safety_stock IS NOT NULL AND SUM(i3.quantity) <= ss3.safety_stock)');
|
|
})
|
|
// 2. 或單一批次效期異常
|
|
->orWhere(function ($q2) use ($expiryThreshold) {
|
|
$q2->whereNotNull('inventories.expiry_date')
|
|
->where('inventories.expiry_date', '<=', $expiryThreshold);
|
|
});
|
|
})
|
|
->select([
|
|
'inventories.id',
|
|
'inventories.quantity',
|
|
'inventories.expiry_date',
|
|
'products.code as product_code',
|
|
'products.name as product_name',
|
|
'warehouses.name as warehouse_name',
|
|
'ss.safety_stock',
|
|
])
|
|
->orderBy('inventories.id', 'desc')
|
|
->limit(10)
|
|
->get()
|
|
->map(function ($item) use ($today, $expiryThreshold) {
|
|
$statuses = [];
|
|
if ($item->quantity < 0) {
|
|
$statuses[] = 'negative';
|
|
}
|
|
if ($item->safety_stock !== null && $item->quantity <= $item->safety_stock && $item->quantity >= 0) {
|
|
$statuses[] = 'low_stock';
|
|
}
|
|
if ($item->expiry_date) {
|
|
if ($item->expiry_date <= $today) {
|
|
$statuses[] = 'expired';
|
|
} elseif ($item->expiry_date <= $expiryThreshold) {
|
|
$statuses[] = 'expiring';
|
|
}
|
|
}
|
|
return [
|
|
'id' => $item->id,
|
|
'product_code' => $item->product_code,
|
|
'product_name' => $item->product_name,
|
|
'warehouse_name' => $item->warehouse_name,
|
|
'quantity' => $item->quantity,
|
|
'safety_stock' => $item->safety_stock,
|
|
'expiry_date' => $item->expiry_date,
|
|
'statuses' => $statuses,
|
|
];
|
|
})
|
|
->toArray();
|
|
|
|
return [
|
|
'productsCount' => $totalItems,
|
|
'warehousesCount' => Warehouse::count(),
|
|
'lowStockCount' => $lowStockCount,
|
|
'negativeCount' => $negativeCount,
|
|
'expiringCount' => $expiringCount,
|
|
'totalInventoryQuantity' => Inventory::sum('quantity'),
|
|
'abnormalItems' => $abnormalItems,
|
|
];
|
|
}
|
|
}
|
|
|