feat:data debug config.

models/mqtt_listener_setting.go

@@ -0,0 +1,49 @@
+package models
+
+import "gorm.io/gorm"
+
+const (
+	DefaultMqttMeasurementExpireDays = 7
+	MqttListenerSettingSingletonID   = 1
+)
+
+type MqttListenerSetting struct {
+	gorm.Model
+	Enabled       bool `gorm:"not null;default:true" json:"enabled"`
+	ExpireDays    int  `gorm:"type:int;not null;default:7" json:"expireDays"`
+	DeleteExpired bool `gorm:"not null;default:true" json:"deleteExpired"`
+}
+
+func (MqttListenerSetting) TableName() string {
+	return "mqtt_listener_settings"
+}
+
+func DefaultMqttListenerSetting() MqttListenerSetting {
+	return MqttListenerSetting{
+		Model:         gorm.Model{ID: MqttListenerSettingSingletonID},
+		Enabled:       true,
+		ExpireDays:    DefaultMqttMeasurementExpireDays,
+		DeleteExpired: true,
+	}
+}
+
+func EnsureDefaultMqttListenerSetting(db *gorm.DB) error {
+	defaults := DefaultMqttListenerSetting()
+
+	var existing MqttListenerSetting
+	err := db.First(&existing, MqttListenerSettingSingletonID).Error
+	if err == nil {
+		updates := map[string]interface{}{}
+		if existing.ExpireDays <= 0 {
+			updates["expire_days"] = DefaultMqttMeasurementExpireDays
+		}
+		if len(updates) == 0 {
+			return nil
+		}
+		return db.Model(&existing).Updates(updates).Error
+	}
+	if err != nil && err != gorm.ErrRecordNotFound {
+		return err
+	}
+	return db.Create(&defaults).Error
+}