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| 1 | <?php |
| 2 | |
| 3 | namespace App\Services\Stock; |
| 4 | |
| 5 | use Illuminate\Support\Collection; |
| 6 | use Illuminate\Support\Facades\DB; |
| 7 | use Illuminate\Support\Facades\Schema; |
| 8 | |
| 9 | class InventoryAuditService |
| 10 | { |
| 11 | /** @return Collection<int, array{type:string,item:string,expected:float,actual:float}> */ |
| 12 | public function issues(): Collection |
| 13 | { |
| 14 | if (! Schema::hasTable('warehouse_stocks')) { |
| 15 | return collect(); |
| 16 | } |
| 17 | |
| 18 | $issues = collect(); |
| 19 | $baseRows = DB::select('SELECT p.id, p.name, p.stock expected, COALESCE(SUM(ws.quantity), 0) actual |
| 20 | FROM products p |
| 21 | LEFT JOIN product_variations v ON v.product_id = p.id |
| 22 | LEFT JOIN warehouse_stocks ws ON ws.product_id = p.id AND ws.variation_id IS NULL |
| 23 | WHERE v.id IS NULL AND p.deleted_at IS NULL |
| 24 | GROUP BY p.id, p.name, p.stock |
| 25 | HAVING ABS(actual - expected) > 0.0001'); |
| 26 | foreach ($baseRows as $row) { |
| 27 | $issues->push(['type' => 'aggregate_mismatch', 'item' => $row->name . ' (#' . $row->id . ')', 'expected' => (float) $row->expected, 'actual' => (float) $row->actual]); |
| 28 | } |
| 29 | |
| 30 | $variationRows = DB::select('SELECT v.id, p.name, v.stock_quantity expected, COALESCE(SUM(ws.quantity), 0) actual |
| 31 | FROM product_variations v |
| 32 | JOIN products p ON p.id = v.product_id |
| 33 | LEFT JOIN warehouse_stocks ws ON ws.variation_id = v.id |
| 34 | WHERE p.deleted_at IS NULL |
| 35 | GROUP BY v.id, p.name, v.stock_quantity |
| 36 | HAVING ABS(actual - expected) > 0.0001'); |
| 37 | foreach ($variationRows as $row) { |
| 38 | $issues->push(['type' => 'variation_mismatch', 'item' => $row->name . ' / variation #' . $row->id, 'expected' => (float) $row->expected, 'actual' => (float) $row->actual]); |
| 39 | } |
| 40 | |
| 41 | foreach (DB::table('warehouse_stocks')->where(fn ($q) => $q->where('quantity', '<', 0)->orWhere('reserved', '<', 0)->orWhereColumn('reserved', '>', 'quantity'))->get() as $row) { |
| 42 | $issues->push(['type' => 'invalid_balance', 'item' => 'warehouse stock #' . $row->id, 'expected' => max(0, (float) $row->quantity), 'actual' => (float) $row->reserved]); |
| 43 | } |
| 44 | |
| 45 | return $issues; |
| 46 | } |
| 47 | |
| 48 | public function repairAggregateMismatches(): int |
| 49 | { |
| 50 | $before = $this->issues()->whereIn('type', ['aggregate_mismatch', 'variation_mismatch'])->count(); |
| 51 | app(LocationInventoryService::class)->reconcileAllToAggregate(); |
| 52 | |
| 53 | return $before; |
| 54 | } |
| 55 | } |