390 lines
11 KiB
Go
390 lines
11 KiB
Go
package service
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import (
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"encoding/json"
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"errors"
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"fmt"
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"git.huangwc.com/pig/pig-farm-controller/internal/app/dto"
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"git.huangwc.com/pig/pig-farm-controller/internal/domain/device"
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"git.huangwc.com/pig/pig-farm-controller/internal/infra/models"
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"git.huangwc.com/pig/pig-farm-controller/internal/infra/repository"
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)
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var (
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// ErrDeviceInUse 表示设备正在被任务使用，无法删除
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ErrDeviceInUse = errors.New("设备正在被一个或多个任务使用，无法删除")
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// ErrAreaControllerInUse 表示区域主控正在被设备使用，无法删除
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ErrAreaControllerInUse = errors.New("区域主控正在被一个或多个设备使用，无法删除")
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// ErrDeviceTemplateInUse 表示设备模板正在被设备使用，无法删除
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ErrDeviceTemplateInUse = errors.New("设备模板正在被一个或多个设备使用，无法删除")
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)
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// DeviceService 定义了应用层的设备服务接口，用于协调设备相关的业务逻辑。
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// DeviceService 定义了应用层的设备服务接口，用于协调设备相关的业务逻辑。
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type DeviceService interface {
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CreateDevice(req *dto.CreateDeviceRequest) (*dto.DeviceResponse, error)
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GetDevice(id uint) (*dto.DeviceResponse, error)
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ListDevices() ([]*dto.DeviceResponse, error)
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UpdateDevice(id uint, req *dto.UpdateDeviceRequest) (*dto.DeviceResponse, error)
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DeleteDevice(id uint) error
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ManualControl(id uint, req *dto.ManualControlDeviceRequest) error
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CreateAreaController(req *dto.CreateAreaControllerRequest) (*dto.AreaControllerResponse, error)
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GetAreaController(id uint) (*dto.AreaControllerResponse, error)
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ListAreaControllers() ([]*dto.AreaControllerResponse, error)
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UpdateAreaController(id uint, req *dto.UpdateAreaControllerRequest) (*dto.AreaControllerResponse, error)
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DeleteAreaController(id uint) error
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CreateDeviceTemplate(req *dto.CreateDeviceTemplateRequest) (*dto.DeviceTemplateResponse, error)
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GetDeviceTemplate(id uint) (*dto.DeviceTemplateResponse, error)
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ListDeviceTemplates() ([]*dto.DeviceTemplateResponse, error)
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UpdateDeviceTemplate(id uint, req *dto.UpdateDeviceTemplateRequest) (*dto.DeviceTemplateResponse, error)
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DeleteDeviceTemplate(id uint) error
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}
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// deviceService 是 DeviceService 接口的具体实现。
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type deviceService struct {
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deviceRepo repository.DeviceRepository
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areaControllerRepo repository.AreaControllerRepository
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deviceTemplateRepo repository.DeviceTemplateRepository
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deviceDomainSvc device.Service // 依赖领域服务
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}
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// NewDeviceService 创建一个新的 DeviceService 实例。
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func NewDeviceService(
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deviceRepo repository.DeviceRepository,
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areaControllerRepo repository.AreaControllerRepository,
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deviceTemplateRepo repository.DeviceTemplateRepository,
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deviceDomainSvc device.Service,
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) DeviceService {
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return &deviceService{
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deviceRepo: deviceRepo,
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areaControllerRepo: areaControllerRepo,
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deviceTemplateRepo: deviceTemplateRepo,
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deviceDomainSvc: deviceDomainSvc,
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}
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}
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// --- Devices ---
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func (s *deviceService) CreateDevice(req *dto.CreateDeviceRequest) (*dto.DeviceResponse, error) {
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propertiesJSON, err := json.Marshal(req.Properties)
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if err != nil {
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return nil, err // Consider wrapping this error for better context
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}
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device := &models.Device{
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Name: req.Name,
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DeviceTemplateID: req.DeviceTemplateID,
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AreaControllerID: req.AreaControllerID,
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Location: req.Location,
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Properties: propertiesJSON,
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}
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if err := device.SelfCheck(); err != nil {
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return nil, err
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}
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if err := s.deviceRepo.Create(device); err != nil {
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return nil, err
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}
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createdDevice, err := s.deviceRepo.FindByID(device.ID)
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if err != nil {
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return nil, err
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}
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return dto.NewDeviceResponse(createdDevice)
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}
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func (s *deviceService) GetDevice(id uint) (*dto.DeviceResponse, error) {
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device, err := s.deviceRepo.FindByID(id)
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if err != nil {
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return nil, err
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}
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return dto.NewDeviceResponse(device)
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}
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func (s *deviceService) ListDevices() ([]*dto.DeviceResponse, error) {
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devices, err := s.deviceRepo.ListAll()
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if err != nil {
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return nil, err
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}
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return dto.NewListDeviceResponse(devices)
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}
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func (s *deviceService) UpdateDevice(id uint, req *dto.UpdateDeviceRequest) (*dto.DeviceResponse, error) {
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existingDevice, err := s.deviceRepo.FindByID(id)
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if err != nil {
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return nil, err
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}
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propertiesJSON, err := json.Marshal(req.Properties)
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if err != nil {
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return nil, err
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}
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existingDevice.Name = req.Name
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existingDevice.DeviceTemplateID = req.DeviceTemplateID
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existingDevice.AreaControllerID = req.AreaControllerID
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existingDevice.Location = req.Location
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existingDevice.Properties = propertiesJSON
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if err := existingDevice.SelfCheck(); err != nil {
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return nil, err
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}
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if err := s.deviceRepo.Update(existingDevice); err != nil {
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return nil, err
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}
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updatedDevice, err := s.deviceRepo.FindByID(existingDevice.ID)
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if err != nil {
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return nil, err
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}
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return dto.NewDeviceResponse(updatedDevice)
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}
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func (s *deviceService) DeleteDevice(id uint) error {
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// 检查设备是否存在
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_, err := s.deviceRepo.FindByID(id)
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if err != nil {
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return err // 如果未找到，会返回 gorm.ErrRecordNotFound
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}
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// 在删除前检查设备是否被任务使用
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inUse, err := s.deviceRepo.IsDeviceInUse(id)
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if err != nil {
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// 如果检查过程中发生数据库错误，则返回错误
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return fmt.Errorf("检查设备使用情况失败: %w", err)
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}
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if inUse {
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// 如果设备正在被使用，则返回特定的业务错误
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return ErrDeviceInUse
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}
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// 只有在未被使用时，才执行删除操作
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return s.deviceRepo.Delete(id)
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}
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func (s *deviceService) ManualControl(id uint, req *dto.ManualControlDeviceRequest) error {
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dev, err := s.deviceRepo.FindByID(id)
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if err != nil {
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return err
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}
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if req.Action == nil {
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return s.deviceDomainSvc.Collect(dev.AreaControllerID, []*models.Device{dev})
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} else {
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action := device.DeviceActionStart
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switch *req.Action {
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case "off":
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action = device.DeviceActionStop
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case "on":
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action = device.DeviceActionStart
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default:
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return errors.New("invalid action")
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}
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return s.deviceDomainSvc.Switch(dev, action)
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}
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}
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// --- Area Controllers ---
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func (s *deviceService) CreateAreaController(req *dto.CreateAreaControllerRequest) (*dto.AreaControllerResponse, error) {
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propertiesJSON, err := json.Marshal(req.Properties)
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if err != nil {
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return nil, err
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}
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ac := &models.AreaController{
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Name: req.Name,
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NetworkID: req.NetworkID,
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Location: req.Location,
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Properties: propertiesJSON,
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}
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if err := ac.SelfCheck(); err != nil {
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return nil, err
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}
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if err := s.areaControllerRepo.Create(ac); err != nil {
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return nil, err
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}
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return dto.NewAreaControllerResponse(ac)
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}
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func (s *deviceService) GetAreaController(id uint) (*dto.AreaControllerResponse, error) {
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ac, err := s.areaControllerRepo.FindByID(id)
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if err != nil {
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return nil, err
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}
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return dto.NewAreaControllerResponse(ac)
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}
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func (s *deviceService) ListAreaControllers() ([]*dto.AreaControllerResponse, error) {
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acs, err := s.areaControllerRepo.ListAll()
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if err != nil {
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return nil, err
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}
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return dto.NewListAreaControllerResponse(acs)
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}
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func (s *deviceService) UpdateAreaController(id uint, req *dto.UpdateAreaControllerRequest) (*dto.AreaControllerResponse, error) {
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existingAC, err := s.areaControllerRepo.FindByID(id)
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if err != nil {
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return nil, err
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}
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propertiesJSON, err := json.Marshal(req.Properties)
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if err != nil {
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return nil, err
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}
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existingAC.Name = req.Name
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existingAC.NetworkID = req.NetworkID
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existingAC.Location = req.Location
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existingAC.Properties = propertiesJSON
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if err := existingAC.SelfCheck(); err != nil {
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return nil, err
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}
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if err := s.areaControllerRepo.Update(existingAC); err != nil {
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return nil, err
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}
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return dto.NewAreaControllerResponse(existingAC)
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}
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func (s *deviceService) DeleteAreaController(id uint) error {
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// 1. 检查是否存在
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_, err := s.areaControllerRepo.FindByID(id)
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if err != nil {
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return err // 如果未找到，gorm会返回 ErrRecordNotFound
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}
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// 2. 检查是否被使用（业务逻辑）
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inUse, err := s.deviceRepo.IsAreaControllerInUse(id)
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if err != nil {
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return err // 返回数据库检查错误
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}
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if inUse {
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return ErrAreaControllerInUse // 返回业务错误
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}
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// 3. 执行删除
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return s.areaControllerRepo.Delete(id)
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}
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// --- Device Templates ---
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func (s *deviceService) CreateDeviceTemplate(req *dto.CreateDeviceTemplateRequest) (*dto.DeviceTemplateResponse, error) {
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commandsJSON, err := json.Marshal(req.Commands)
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if err != nil {
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return nil, err
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}
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valuesJSON, err := json.Marshal(req.Values)
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if err != nil {
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return nil, err
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}
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deviceTemplate := &models.DeviceTemplate{
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Name: req.Name,
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Manufacturer: req.Manufacturer,
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Description: req.Description,
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Category: req.Category,
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Commands: commandsJSON,
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Values: valuesJSON,
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}
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if err := deviceTemplate.SelfCheck(); err != nil {
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return nil, err
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}
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if err := s.deviceTemplateRepo.Create(deviceTemplate); err != nil {
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return nil, err
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}
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return dto.NewDeviceTemplateResponse(deviceTemplate)
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}
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func (s *deviceService) GetDeviceTemplate(id uint) (*dto.DeviceTemplateResponse, error) {
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deviceTemplate, err := s.deviceTemplateRepo.FindByID(id)
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if err != nil {
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return nil, err
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}
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return dto.NewDeviceTemplateResponse(deviceTemplate)
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}
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func (s *deviceService) ListDeviceTemplates() ([]*dto.DeviceTemplateResponse, error) {
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deviceTemplates, err := s.deviceTemplateRepo.ListAll()
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if err != nil {
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return nil, err
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}
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return dto.NewListDeviceTemplateResponse(deviceTemplates)
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}
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func (s *deviceService) UpdateDeviceTemplate(id uint, req *dto.UpdateDeviceTemplateRequest) (*dto.DeviceTemplateResponse, error) {
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existingDeviceTemplate, err := s.deviceTemplateRepo.FindByID(id)
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if err != nil {
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return nil, err
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}
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commandsJSON, err := json.Marshal(req.Commands)
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if err != nil {
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return nil, err
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}
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valuesJSON, err := json.Marshal(req.Values)
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if err != nil {
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return nil, err
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}
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existingDeviceTemplate.Name = req.Name
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existingDeviceTemplate.Manufacturer = req.Manufacturer
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existingDeviceTemplate.Description = req.Description
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existingDeviceTemplate.Category = req.Category
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existingDeviceTemplate.Commands = commandsJSON
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existingDeviceTemplate.Values = valuesJSON
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if err := existingDeviceTemplate.SelfCheck(); err != nil {
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return nil, err
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}
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if err := s.deviceTemplateRepo.Update(existingDeviceTemplate); err != nil {
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return nil, err
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}
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return dto.NewDeviceTemplateResponse(existingDeviceTemplate)
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}
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func (s *deviceService) DeleteDeviceTemplate(id uint) error {
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// 1. 检查是否存在
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_, err := s.deviceTemplateRepo.FindByID(id)
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if err != nil {
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return err
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}
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// 2. 检查是否被使用（业务逻辑）
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inUse, err := s.deviceTemplateRepo.IsInUse(id)
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if err != nil {
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return err
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}
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if inUse {
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return ErrDeviceTemplateInUse // 返回业务错误
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}
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// 3. 执行删除
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return s.deviceTemplateRepo.Delete(id)
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}
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