[FEAT] 實作維修管理模組與 RBAC 權限整合、多語系支援及 UI 優化

app/Services/Machine/MachineService.php

@@ -106,6 +106,51 @@ class MachineService
         ]);
     }
 
+    /**
+     * Get machine utilization and OEE statistics for entire fleet.
+     */
+    public function getFleetStats(string $date): array
+    {
+        $start = Carbon::parse($date)->startOfDay();
+        $end = Carbon::parse($date)->endOfDay();
+
+        // 1. Online Count (Base on current status)
+        $machines = Machine::all(); // This is filtered by TenantScoped
+        $totalMachines = $machines->count();
+        $onlineCount = $machines->where('status', 'online')->count();
+
+        $machineIds = $machines->pluck('id')->toArray();
+
+        // 2. Total Daily Sales (Sum of B600 logs across all authorized machines)
+        $totalSales = MachineLog::whereIn('machine_id', $machineIds)
+            ->where('message', 'like', '%B600%')
+            ->whereBetween('created_at', [$start, $end])
+            ->count();
+
+        // 3. Average OEE (Simulated based on individual machine stats for performance)
+        $totalOee = 0;
+        $count = 0;
+        
+        foreach ($machines as $machine) {
+            $stats = $this->getUtilizationStats($machine, $date);
+            $totalOee += $stats['overview']['oee'];
+            $count++;
+        }
+
+        $avgOee = ($count > 0) ? ($totalOee / $count) : 0;
+
+        return [
+            'avgOee' => round($avgOee, 2),
+            'onlineCount' => $onlineCount,
+            'totalMachines' => $totalMachines,
+            'totalSales' => $totalSales,
+            'alertCount' => MachineLog::whereIn('machine_id', $machineIds)
+                ->where('level', 'error')
+                ->whereBetween('created_at', [$start, $end])
+                ->count()
+        ];
+    }
+
     /**
      * Get machine utilization and OEE statistics.
      */