219 lines
7.6 KiB
Go
219 lines
7.6 KiB
Go
package device
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import (
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"errors"
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"fmt"
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"time"
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"git.huangwc.com/pig/pig-farm-controller/internal/app/service/device/proto"
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"git.huangwc.com/pig/pig-farm-controller/internal/infra/logs"
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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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"git.huangwc.com/pig/pig-farm-controller/internal/infra/transport"
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"github.com/google/uuid"
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gproto "google.golang.org/protobuf/proto"
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"google.golang.org/protobuf/types/known/anypb"
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)
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type GeneralDeviceService struct {
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deviceRepo repository.DeviceRepository
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deviceCommandLogRepo repository.DeviceCommandLogRepository
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pendingCollectionRepo repository.PendingCollectionRepository
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logger *logs.Logger
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comm transport.Communicator
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}
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// NewGeneralDeviceService 创建一个通用设备服务
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func NewGeneralDeviceService(
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deviceRepo repository.DeviceRepository,
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deviceCommandLogRepo repository.DeviceCommandLogRepository,
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pendingCollectionRepo repository.PendingCollectionRepository,
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logger *logs.Logger,
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comm transport.Communicator,
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) Service {
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return &GeneralDeviceService{
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deviceRepo: deviceRepo,
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deviceCommandLogRepo: deviceCommandLogRepo,
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pendingCollectionRepo: pendingCollectionRepo,
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logger: logger,
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comm: comm,
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}
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}
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func (g *GeneralDeviceService) Switch(device *models.Device, action DeviceAction) error {
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// 1. 依赖模型自身的 SelfCheck 进行全面校验
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if err := device.SelfCheck(); err != nil {
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return fmt.Errorf("设备 %v(id=%v) 未通过自检: %w", device.Name, device.ID, err)
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}
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if err := device.DeviceTemplate.SelfCheck(); err != nil {
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return fmt.Errorf("设备 %v(id=%v) 的模板未通过自检: %w", device.Name, device.ID, err)
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}
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// 2. 检查预加载的 AreaController 是否有效
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areaController := &device.AreaController
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if err := areaController.SelfCheck(); err != nil {
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return fmt.Errorf("区域主控 %v(id=%v) 未通过自检: %w", areaController.Name, areaController.ID, err)
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}
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// 3. 使用模型层预定义的 BusProperties 结构体解析设备属性
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var deviceProps models.BusProperties
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if err := device.ParseProperties(&deviceProps); err != nil {
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return fmt.Errorf("解析设备 %v(id=%v) 的属性失败: %w", device.Name, device.ID, err)
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}
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var command models.SwitchCommands
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// 前面的 device.DeviceTemplate.SelfCheck()保障了解析一定成功
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_ = device.DeviceTemplate.ParseCommands(&command)
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deviceAction := command.On
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if action == DeviceActionStop {
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deviceAction = command.Off
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}
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// 4. 构建 Protobuf 指令
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data, err := anypb.New(&proto.Switch{
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DeviceAction: deviceAction,
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BusNumber: int32(deviceProps.BusNumber),
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BusAddress: int32(deviceProps.BusAddress),
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RelayChannel: int32(deviceProps.RelayChannel),
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})
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if err != nil {
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return fmt.Errorf("创建指令失败: %w", err)
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}
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instruction := &proto.Instruction{
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Method: proto.MethodType_SWITCH,
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Data: data,
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}
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message, err := gproto.Marshal(instruction)
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if err != nil {
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return fmt.Errorf("序列化指令失败: %w", err)
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}
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// 5. 发送指令
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networkID := areaController.NetworkID
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sendResult, err := g.comm.Send(networkID, message)
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if err != nil {
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return fmt.Errorf("发送指令到 %s 失败: %w", networkID, err)
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}
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// 6. 创建并保存命令日志
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logRecord := &models.DeviceCommandLog{
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MessageID: sendResult.MessageID,
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DeviceID: areaController.ID,
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SentAt: time.Now(),
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}
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if err := g.deviceCommandLogRepo.Create(logRecord); err != nil {
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// 记录日志失败是一个需要关注的问题，但可能不应该中断主流程。
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// 我们记录一个错误日志，然后成功返回。
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g.logger.Errorf("创建指令日志失败 (MessageID: %s): %v", sendResult.MessageID, err)
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}
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g.logger.Infof("成功发送指令到 %s 并创建日志 (MessageID: %s)", networkID, sendResult.MessageID)
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return nil
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}
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// Collect 实现了 Service 接口，用于发起对指定区域主控下的多个设备的批量采集请求。
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func (g *GeneralDeviceService) Collect(regionalControllerID uint, devicesToCollect []*models.Device) error {
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if len(devicesToCollect) == 0 {
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g.logger.Info("待采集设备列表为空，无需执行采集任务。")
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return nil
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}
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// 1. 从设备列表中获取预加载的区域主控，并进行校验
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regionalController := &devicesToCollect[0].AreaController
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if regionalController.ID != regionalControllerID {
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return fmt.Errorf("设备列表与指定的区域主控ID (%d) 不匹配", regionalControllerID)
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}
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if err := regionalController.SelfCheck(); err != nil {
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return fmt.Errorf("区域主控 (ID: %d) 未通过自检: %w", regionalControllerID, err)
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}
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// 2. 准备采集任务列表
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var childDeviceIDs []uint
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var collectTasks []*proto.CollectTask
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for _, dev := range devicesToCollect {
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// 依赖模型自身的 SelfCheck 进行全面校验
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if err := dev.SelfCheck(); err != nil {
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g.logger.Warnf("跳过设备 %d，因其未通过自检: %v", dev.ID, err)
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continue
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}
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if err := dev.DeviceTemplate.SelfCheck(); err != nil {
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g.logger.Warnf("跳过设备 %d，因其设备模板未通过自检: %v", dev.ID, err)
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continue
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}
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// 使用模板的 ParseCommands 方法获取指令
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var sensorCmd models.SensorCommands
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if err := dev.DeviceTemplate.ParseCommands(&sensorCmd); err != nil {
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g.logger.Warnf("跳过设备 %d，因其模板指令无法解析为 SensorCommands: %v", dev.ID, err)
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continue
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}
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// 使用模型层预定义的 BusProperties 结构体解析设备属性
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var deviceProps models.BusProperties
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if err := dev.ParseProperties(&deviceProps); err != nil {
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g.logger.Warnf("跳过设备 %d，因其属性解析失败: %v", dev.ID, err)
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continue
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}
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collectTasks = append(collectTasks, &proto.CollectTask{
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DeviceAction: sensorCmd.Read, // 使用从模板中获取的指令
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BusNumber: int32(deviceProps.BusNumber),
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BusAddress: int32(deviceProps.BusAddress),
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})
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childDeviceIDs = append(childDeviceIDs, dev.ID)
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}
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if len(childDeviceIDs) == 0 {
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return errors.New("经过滤后，没有可通过自检的有效设备")
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}
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// 3. 构建并发送指令
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networkID := regionalController.NetworkID
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// 4. 创建待处理请求记录
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correlationID := uuid.New().String()
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pendingReq := &models.PendingCollection{
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CorrelationID: correlationID,
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DeviceID: regionalController.ID,
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CommandMetadata: childDeviceIDs,
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Status: models.PendingStatusPending,
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CreatedAt: time.Now(),
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}
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if err := g.pendingCollectionRepo.Create(pendingReq); err != nil {
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g.logger.Errorf("创建待采集请求失败 (CorrelationID: %s): %v", correlationID, err)
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return err
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}
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g.logger.Infof("成功创建待采集请求 (CorrelationID: %s, DeviceID: %d)", correlationID, regionalController.ID)
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// 5. 构建最终的空中载荷
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batchCmd := &proto.BatchCollectCommand{
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CorrelationId: correlationID,
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Tasks: collectTasks,
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}
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anyData, err := anypb.New(batchCmd)
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if err != nil {
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g.logger.Errorf("创建 Any Protobuf 失败 (CorrelationID: %s): %v", correlationID, err)
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return err
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}
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instruction := &proto.Instruction{
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Method: proto.MethodType_COLLECT,
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Data: anyData,
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}
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payload, err := gproto.Marshal(instruction)
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if err != nil {
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g.logger.Errorf("序列化采集指令失败 (CorrelationID: %s): %v", correlationID, err)
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return err
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}
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if _, err := g.comm.Send(networkID, payload); err != nil {
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g.logger.DPanicf("待采集请求 (CorrelationID: %s) 已创建，但发送到设备失败: %v。数据可能不一致！", correlationID, err)
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return err
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}
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g.logger.Infof("成功将采集请求 (CorrelationID: %s) 发送到设备 %s", correlationID, networkID)
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return nil
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}
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