318 lines
11 KiB
Go
318 lines
11 KiB
Go
package device
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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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"strconv"
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"strings"
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"time"
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"git.huangwc.com/pig/pig-farm-controller/internal/app/controller"
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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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"github.com/gin-gonic/gin"
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"gorm.io/gorm"
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)
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// Controller 设备控制器，封装了所有与设备相关的业务逻辑
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type Controller struct {
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repo repository.DeviceRepository
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logger *logs.Logger
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}
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// NewController 创建一个新的设备控制器实例
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func NewController(repo repository.DeviceRepository, logger *logs.Logger) *Controller {
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return &Controller{
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repo: repo,
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logger: logger,
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}
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}
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// --- Request DTOs ---
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// CreateDeviceRequest 定义了创建设备时需要传入的参数
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type CreateDeviceRequest struct {
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Name string `json:"name" binding:"required"`
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Type models.DeviceType `json:"type" binding:"required"`
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SubType models.DeviceSubType `json:"sub_type,omitempty"`
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ParentID *uint `json:"parent_id,omitempty"`
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Location string `json:"location,omitempty"`
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Properties map[string]interface{} `json:"properties,omitempty"`
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}
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// UpdateDeviceRequest 定义了更新设备时需要传入的参数
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type UpdateDeviceRequest struct {
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Name string `json:"name" binding:"required"`
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Type models.DeviceType `json:"type" binding:"required"`
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SubType models.DeviceSubType `json:"sub_type,omitempty"`
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ParentID *uint `json:"parent_id,omitempty"`
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Location string `json:"location,omitempty"`
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Properties map[string]interface{} `json:"properties,omitempty"`
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}
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// --- Response DTOs ---
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// DeviceResponse 定义了返回给客户端的单个设备信息的结构
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type DeviceResponse struct {
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ID uint `json:"id"`
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Name string `json:"name"`
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Type models.DeviceType `json:"type"`
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SubType models.DeviceSubType `json:"sub_type"`
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ParentID *uint `json:"parent_id"`
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Location string `json:"location"`
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Properties map[string]interface{} `json:"properties"`
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CreatedAt string `json:"created_at"`
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UpdatedAt string `json:"updated_at"`
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}
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// --- DTO 转换函数 ---
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// newDeviceResponse 从数据库模型创建一个新的设备响应 DTO
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func newDeviceResponse(device *models.Device) (*DeviceResponse, error) {
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if device == nil {
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return nil, nil
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}
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var props map[string]interface{}
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if len(device.Properties) > 0 && string(device.Properties) != "null" {
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if err := json.Unmarshal(device.Properties, &props); err != nil {
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return nil, fmt.Errorf("解析设备属性失败 (ID: %d): %w", device.ID, err)
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}
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}
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return &DeviceResponse{
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ID: device.ID,
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Name: device.Name,
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Type: device.Type,
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SubType: device.SubType,
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ParentID: device.ParentID,
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Location: device.Location,
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Properties: props,
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CreatedAt: device.CreatedAt.Format(time.RFC3339),
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UpdatedAt: device.UpdatedAt.Format(time.RFC3339),
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}, nil
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}
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// newListDeviceResponse 从数据库模型切片创建一个新的设备列表响应 DTO 切片
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func newListDeviceResponse(devices []*models.Device) ([]*DeviceResponse, error) {
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list := make([]*DeviceResponse, 0, len(devices))
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for _, device := range devices {
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resp, err := newDeviceResponse(device)
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if err != nil {
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return nil, err
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}
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list = append(list, resp)
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}
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return list, nil
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}
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// --- Controller Methods ---
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// CreateDevice godoc
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// @Summary 创建新设备
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// @Description 根据提供的信息创建一个新设备
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// @Tags 设备管理
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// @Accept json
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// @Produce json
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// @Param device body CreateDeviceRequest true "设备信息"
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// @Success 200 {object} controller.Response{data=DeviceResponse}
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// @Router /api/v1/devices [post]
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func (c *Controller) CreateDevice(ctx *gin.Context) {
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var req CreateDeviceRequest
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if err := ctx.ShouldBindJSON(&req); err != nil {
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c.logger.Errorf("创建设备: 参数绑定失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeBadRequest, err.Error())
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return
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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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c.logger.Errorf("创建设备: 序列化属性失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeBadRequest, "属性字段格式错误")
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return
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}
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device := &models.Device{
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Name: req.Name,
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Type: req.Type,
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SubType: req.SubType,
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ParentID: req.ParentID,
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Location: req.Location,
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Properties: propertiesJSON,
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}
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if err := c.repo.Create(device); err != nil {
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c.logger.Errorf("创建设备: 数据库操作失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeInternalError, "创建设备失败")
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return
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}
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resp, err := newDeviceResponse(device)
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if err != nil {
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c.logger.Errorf("创建设备: 序列化响应失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeInternalError, "设备创建成功，但响应生成失败")
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return
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}
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controller.SendResponse(ctx, controller.CodeCreated, "设备创建成功", resp)
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}
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// GetDevice godoc
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// @Summary 获取设备信息
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// @Description 根据设备ID获取单个设备的详细信息
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// @Tags 设备管理
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// @Produce json
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// @Param id path string true "设备ID"
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// @Success 200 {object} controller.Response{data=DeviceResponse}
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// @Router /api/v1/devices/{id} [get]
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func (c *Controller) GetDevice(ctx *gin.Context) {
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deviceID := ctx.Param("id")
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device, err := c.repo.FindByIDString(deviceID)
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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controller.SendErrorResponse(ctx, controller.CodeNotFound, "设备未找到")
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return
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}
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if strings.Contains(err.Error(), "无效的设备ID格式") {
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controller.SendErrorResponse(ctx, controller.CodeBadRequest, err.Error())
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return
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}
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c.logger.Errorf("获取设备: 数据库操作失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeInternalError, "获取设备信息失败")
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return
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}
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resp, err := newDeviceResponse(device)
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if err != nil {
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c.logger.Errorf("获取设备: 序列化响应失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeInternalError, "获取设备信息失败: 内部数据格式错误")
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return
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}
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controller.SendResponse(ctx, controller.CodeSuccess, "获取设备信息成功", resp)
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}
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// ListDevices godoc
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// @Summary 获取设备列表
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// @Description 获取系统中所有设备的列表
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// @Tags 设备管理
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// @Produce json
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// @Success 200 {object} controller.Response{data=[]DeviceResponse}
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// @Router /api/v1/devices [get]
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func (c *Controller) ListDevices(ctx *gin.Context) {
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devices, err := c.repo.ListAll()
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if err != nil {
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c.logger.Errorf("获取设备列表: 数据库操作失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeInternalError, "获取设备列表失败")
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return
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}
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resp, err := newListDeviceResponse(devices)
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if err != nil {
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c.logger.Errorf("获取设备列表: 序列化响应失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeInternalError, "获取设备列表失败: 内部数据格式错误")
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return
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}
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controller.SendResponse(ctx, controller.CodeSuccess, "获取设备列表成功", resp)
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}
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// UpdateDevice godoc
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// @Summary 更新设备信息
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// @Description 根据设备ID更新一个已存在的设备信息
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// @Tags 设备管理
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// @Accept json
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// @Produce json
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// @Param id path string true "设备ID"
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// @Param device body UpdateDeviceRequest true "要更新的设备信息"
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// @Success 200 {object} controller.Response{data=DeviceResponse}
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// @Router /api/v1/devices/{id} [put]
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func (c *Controller) UpdateDevice(ctx *gin.Context) {
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deviceID := ctx.Param("id")
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// 1. 检查设备是否存在
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existingDevice, err := c.repo.FindByIDString(deviceID)
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if err != nil {
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if errors.Is(err, gorm.ErrRecordNotFound) {
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controller.SendErrorResponse(ctx, controller.CodeNotFound, "设备未找到")
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return
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}
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if strings.Contains(err.Error(), "无效的设备ID格式") {
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controller.SendErrorResponse(ctx, controller.CodeBadRequest, err.Error())
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return
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}
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c.logger.Errorf("更新设备: 查找设备失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeInternalError, "更新设备失败")
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return
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}
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// 2. 绑定请求参数
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var req UpdateDeviceRequest
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if err := ctx.ShouldBindJSON(&req); err != nil {
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c.logger.Errorf("更新设备: 参数绑定失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeBadRequest, err.Error())
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return
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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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c.logger.Errorf("更新设备: 序列化属性失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeBadRequest, "属性字段格式错误")
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return
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}
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// 3. 更新从数据库中查出的现有设备对象的字段
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existingDevice.Name = req.Name
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existingDevice.Type = req.Type
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existingDevice.SubType = req.SubType
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existingDevice.ParentID = req.ParentID
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existingDevice.Location = req.Location
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existingDevice.Properties = propertiesJSON
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// 4. 将修改后的 existingDevice 对象保存回数据库
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if err := c.repo.Update(existingDevice); err != nil {
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c.logger.Errorf("更新设备: 数据库操作失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeInternalError, "更新设备失败")
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return
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}
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resp, err := newDeviceResponse(existingDevice)
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if err != nil {
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c.logger.Errorf("更新设备: 序列化响应失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeInternalError, "设备更新成功，但响应生成失败")
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return
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}
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controller.SendResponse(ctx, controller.CodeSuccess, "设备更新成功", resp)
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}
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// DeleteDevice godoc
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// @Summary 删除设备
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// @Description 根据设备ID删除一个设备（软删除）
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// @Tags 设备管理
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// @Produce json
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// @Param id path string true "设备ID"
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// @Success 200 {object} controller.Response
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// @Router /api/v1/devices/{id} [delete]
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func (c *Controller) DeleteDevice(ctx *gin.Context) {
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deviceID := ctx.Param("id")
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// 我们需要先将字符串ID转换为uint，因为Delete方法需要uint类型
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idUint, err := strconv.ParseUint(deviceID, 10, 64)
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if err != nil {
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controller.SendErrorResponse(ctx, controller.CodeBadRequest, "无效的设备ID格式")
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return
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}
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if err := c.repo.Delete(uint(idUint)); err != nil {
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c.logger.Errorf("删除设备: 数据库操作失败: %v", err)
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controller.SendErrorResponse(ctx, controller.CodeInternalError, "删除设备失败")
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return
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}
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controller.SendResponse(ctx, controller.CodeSuccess, "设备删除成功", nil)
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}
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