package model

import "time"

// MonitorAlertCategory 监控告警规则分类 // Logan.Li
type MonitorAlertCategory string

const (
	MonitorAlertHost       MonitorAlertCategory = "host"
	MonitorAlertMiddleware MonitorAlertCategory = "middleware"
	MonitorAlertSNMP       MonitorAlertCategory = "snmp"
	MonitorAlertSite       MonitorAlertCategory = "site"
)

// MonitorAlertRule 中间件/站点拨测告警规则（主机规则仍用 AgentRule）// Logan.Li
type MonitorAlertRule struct {
	ID            uint                 `gorm:"primaryKey;autoIncrement" json:"id"`
	Category      MonitorAlertCategory `gorm:"type:varchar(16);not null;index" json:"category"`
	Name          string               `gorm:"type:varchar(128);not null" json:"name"`
	TargetID      uint                 `gorm:"default:0;index;comment:目标ID,0=全部" json:"target_id"`
	Metric        string               `gorm:"type:varchar(64);not null" json:"metric"`
	Operator      string               `gorm:"type:varchar(8);default:>" json:"operator"`
	Threshold     float64              `gorm:"type:decimal(12,4)" json:"threshold"`
	Severity      string               `gorm:"type:varchar(16);default:warning" json:"severity"`
	Enabled       bool                 `gorm:"default:true" json:"enabled"`
	DurationSec   int                  `gorm:"default:0;comment:持续秒数(预留)" json:"duration_sec"`
	Port          int                  `gorm:"default:0" json:"port,omitempty"`
	Description   string               `gorm:"type:varchar(256)" json:"description,omitempty"`
	LastTriggered *time.Time           `json:"last_triggered,omitempty"`
	CreatedAt     time.Time            `json:"created_at"`
	UpdatedAt     time.Time            `json:"updated_at"`
}

func (MonitorAlertRule) TableName() string { return "monitor_probe_alert_rules" }