package device

import (
	"time"
)

// Device 设备模型
type Device struct {
	ID          string            `json:"id" gorm:"primaryKey"`
	Name        string            `json:"name" gorm:"not null"`
	Type        string            `json:"type" gorm:"not null"`
	Protocol    string            `json:"protocol" gorm:"not null"`
	Status      DeviceStatus      `json:"status" gorm:"default:'offline'"`
	LastSeen    *time.Time        `json:"last_seen"`
	Metadata    map[string]string `json:"metadata" gorm:"serializer:json"`
	Config      DeviceConfig      `json:"config" gorm:"serializer:json"`
	Firmware    FirmwareInfo      `json:"firmware" gorm:"serializer:json"`
	Location    LocationInfo      `json:"location" gorm:"serializer:json"`
	CreatedAt   time.Time         `json:"created_at"`
	UpdatedAt   time.Time         `json:"updated_at"`
	DeletedAt   *time.Time        `json:"-" gorm:"index"`
}

// DeviceStatus 设备状态
type DeviceStatus string

const (
	StatusOnline   DeviceStatus = "online"
	StatusOffline  DeviceStatus = "offline"
	StatusError    DeviceStatus = "error"
	StatusUpdating DeviceStatus = "updating"
)

// DeviceConfig 设备配置
type DeviceConfig struct {
	ReportInterval int                    `json:"report_interval"` // 报告间隔（秒）
	Threshold      map[string]interface{} `json:"threshold"`      // 阈值设置
	Enabled        bool                   `json:"enabled"`        // 是否启用
	Custom         map[string]interface{} `json:"custom"`         // 自定义配置
}

// FirmwareInfo 固件信息
type FirmwareInfo struct {
	Version     string    `json:"version"`
	Checksum    string    `json:"checksum"`
	ReleaseDate time.Time `json:"release_date"`
	Description string    `json:"description"`
	URL         string    `json:"url"`
}

// LocationInfo 位置信息
type LocationInfo struct {
	Latitude  float64 `json:"latitude"`
	Longitude float64 `json:"longitude"`
	Altitude  float64 `json:"altitude"`
	Address   string  `json:"address"`
	Building  string  `json:"building"`
	Floor     string  `json:"floor"`
	Room      string  `json:"room"`
}

// DeviceData 设备数据
type DeviceData struct {
	DeviceID    string                 `json:"device_id"`
	Timestamp   time.Time              `json:"timestamp"`
	Metrics     map[string]interface{} `json:"metrics"`
	Location    *LocationInfo          `json:"location,omitempty"`
	Quality     DataQuality            `json:"quality"`
}

// DataQuality 数据质量
type DataQuality struct {
	Good    bool    `json:"good"`
	Accuracy float64 `json:"accuracy"`
	Source  string  `json:"source"`
}

// DeviceEvent 设备事件
type DeviceEvent struct {
	ID        string                 `json:"id"`
	DeviceID  string                 `json:"device_id"`
	Type      EventType              `json:"type"`
	Severity  EventSeverity          `json:"severity"`
	Message   string                 `json:"message"`
	Data      map[string]interface{} `json:"data,omitempty"`
	Timestamp time.Time              `json:"timestamp"`
	Acked     bool                   `json:"acked"`
	AckedBy   string                 `json:"acked_by,omitempty"`
	AckedAt   *time.Time             `json:"acked_at,omitempty"`
}

// EventType 事件类型
type EventType string

const (
	EventConnect     EventType = "connect"
	EventDisconnect  EventType = "disconnect"
	EventError       EventType = "error"
	EventMaintenance EventType = "maintenance"
	EventFirmware    EventType = "firmware"
	EventConfig      EventType = "config"
	EventAlert       EventType = "alert"
)

// EventSeverity 事件严重程度
type EventSeverity string

const (
	SeverityInfo    EventSeverity = "info"
	SeverityWarning EventSeverity = "warning"
	SeverityError   EventSeverity = "error"
	SeverityCritical EventSeverity = "critical"
)

// CreateDeviceRequest 创建设备请求
type CreateDeviceRequest struct {
	Name     string            `json:"name" binding:"required"`
	Type     string            `json:"type" binding:"required"`
	Protocol string            `json:"protocol" binding:"required"`
	Metadata map[string]string `json:"metadata"`
	Config   DeviceConfig      `json:"config"`
	Location LocationInfo      `json:"location"`
}

// UpdateDeviceRequest 更新设备请求
type UpdateDeviceRequest struct {
	Name     string            `json:"name"`
	Metadata map[string]string `json:"metadata"`
	Config   DeviceConfig      `json:"config"`
	Location LocationInfo      `json:"location"`
}

// UpdateDeviceConfigRequest 更新设备配置请求
type UpdateDeviceConfigRequest struct {
	Config DeviceConfig `json:"config" binding:"required"`
}

// UpdateFirmwareRequest 更新固件请求
type UpdateFirmwareRequest struct {
	Version     string `json:"version" binding:"required"`
	URL         string `json:"url" binding:"required"`
	Description string `json:"description"`
}

// DeviceResponse 设备响应
type DeviceResponse struct {
	ID          string            `json:"id"`
	Name        string            `json:"name"`
	Type        string            `json:"type"`
	Protocol    string            `json:"protocol"`
	Status      DeviceStatus      `json:"status"`
	LastSeen    *time.Time        `json:"last_seen"`
	Metadata    map[string]string `json:"metadata"`
	Config      DeviceConfig      `json:"config"`
	Firmware    FirmwareInfo      `json:"firmware"`
	Location    LocationInfo      `json:"location"`
	CreatedAt   time.Time         `json:"created_at"`
	UpdatedAt   time.Time         `json:"updated_at"`
}

// ToResponse 转换为响应格式
func (d *Device) ToResponse() DeviceResponse {
	return DeviceResponse{
		ID:        d.ID,
		Name:      d.Name,
		Type:      d.Type,
		Protocol:  d.Protocol,
		Status:    d.Status,
		LastSeen:  d.LastSeen,
		Metadata:  d.Metadata,
		Config:    d.Config,
		Firmware:  d.Firmware,
		Location:  d.Location,
		CreatedAt: d.CreatedAt,
		UpdatedAt: d.UpdatedAt,
	}
}

// TableName 指定表名
func (Device) TableName() string {
	return "devices"
}

// TableName 指定表名
func (DeviceEvent) TableName() string {
	return "device_events"
}