feat: 實作機台日誌核心功能與 IoT 高併發處理架構

app/Services/Machine/MachineService.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Services\Machine;
+
+use App\Models\Machine\Machine;
+use App\Models\Machine\MachineLog;
+use Illuminate\Support\Facades\Log;
+
+class MachineService
+{
+    /**
+     * 處理機台日誌寫入與狀態更新
+     */
+    public function recordLog(int $machineId, array $data): MachineLog
+    {
+        $machine = Machine::findOrFail($machineId);
+
+        // 建立日誌紀錄
+        $log = $machine->logs()->create([
+            'level' => $data['level'] ?? 'info',
+            'message' => $data['message'],
+            'context' => $data['context'] ?? null,
+        ]);
+
+        // 同步更新機台最後活耀時間與狀態
+        $machine->update([
+            'last_heartbeat_at' => now(),
+            'status' => $this->resolveStatus($data),
+        ]);
+
+        return $log;
+    }
+
+    /**
+     * 根據日誌內容判斷機台是否應標記成錯誤
+     */
+    protected function resolveStatus(array $data): string
+    {
+        if (isset($data['level']) && $data['level'] === 'error') {
+            return 'error';
+        }
+
+        return 'online';
+    }
+}