From 375af57afe2850c13f4e6381da108f0dc18fd025 Mon Sep 17 00:00:00 2001
From: huang <1724659546@qq.com>
Date: Fri, 7 Nov 2025 20:56:04 +0800
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---
 internal/infra/models/alarm.go | 52 ++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 internal/infra/models/alarm.go

diff --git a/internal/infra/models/alarm.go b/internal/infra/models/alarm.go
new file mode 100644
index 0000000..2d7256f
--- /dev/null
+++ b/internal/infra/models/alarm.go
@@ -0,0 +1,52 @@
+package models
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+// ActiveAlarm 活跃告警
+// 活跃告警会被更新（如确认状态），因此保留 gorm.Model 以包含所有标准字段。
+type ActiveAlarm struct {
+	gorm.Model
+	FarmID         uint      `gorm:"not null;comment:猪场ID" json:"farm_id,omitempty"`
+	DeviceID       uint      `gorm:"not null;comment:设备ID" json:"device_id,omitempty"`
+	AlarmType      string    `gorm:"comment:告警类型" json:"alarm_type,omitempty"`
+	AlarmLevel     string    `gorm:"comment:告警级别" json:"alarm_level,omitempty"`
+	AlarmContent   string    `gorm:"comment:告警内容描述" json:"alarm_content,omitempty"`
+	TriggerTime    time.Time `gorm:"not null;comment:告警触发时间" json:"trigger_time"`
+	IsAcknowledged bool      `gorm:"default:false;comment:是否已确认" json:"is_acknowledged,omitempty"`
+	AcknowledgedBy string    `gorm:"comment:确认人" json:"acknowledged_by,omitempty"`
+	// 使用指针类型 *time.Time 来表示可为空的确认时间
+	AcknowledgedTime *time.Time `gorm:"comment:确认时间" json:"acknowledged_time,omitempty"`
+}
+
+// TableName 指定 ActiveAlarm 结构体对应的数据库表名
+func (ActiveAlarm) TableName() string {
+	return "active_alarms"
+}
+
+// HistoricalAlarm 历史告警
+// 历史告警是不可变归档数据，我们移除 gorm.Model，并手动定义字段。
+// ID 和 CreatedAt 共同构成联合主键，以满足 TimescaleDB 超表的要求。
+type HistoricalAlarm struct {
+	// 手动定义主键，ID 仍然自增
+	ID            uint      `gorm:"primaryKey;autoIncrement;comment:主键ID" json:"id,omitempty"`
+	FarmID        uint      `gorm:"not null;comment:猪场ID" json:"farm_id,omitempty"`
+	DeviceID      uint      `gorm:"not null;comment:设备ID" json:"device_id,omitempty"`
+	AlarmType     string    `gorm:"comment:告警类型" json:"alarm_type,omitempty"`
+	AlarmLevel    string    `gorm:"comment:告警级别" json:"alarm_level,omitempty"`
+	AlarmContent  string    `gorm:"comment:告警内容描述" json:"alarm_content,omitempty"`
+	TriggerTime   time.Time `gorm:"not null;comment:告警触发时间" json:"trigger_time"`
+	ResolveTime   time.Time `gorm:"not null;comment:告警解决时间" json:"resolve_time"`
+	ResolveMethod string    `gorm:"comment:告警解决方式" json:"resolve_method,omitempty"`
+	ResolvedBy    string    `gorm:"comment:告警解决人" json:"resolved_by,omitempty"`
+	// 将 CreatedAt 作为联合主键的一部分，用于 TimescaleDB 分区
+	CreatedAt time.Time `gorm:"primaryKey;comment:创建时间" json:"created_at"`
+}
+
+// TableName 指定 HistoricalAlarm 结构体对应的数据库表名
+func (HistoricalAlarm) TableName() string {
+	return "historical_alarms"
+}