174 lines
5.1 KiB
Go
174 lines
5.1 KiB
Go
package core
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import (
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"context"
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"fmt"
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"os"
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"os/signal"
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"syscall"
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"git.huangwc.com/pig/pig-farm-controller/internal/app/api"
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"git.huangwc.com/pig/pig-farm-controller/internal/app/listener"
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"git.huangwc.com/pig/pig-farm-controller/internal/app/listener/chirp_stack"
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"git.huangwc.com/pig/pig-farm-controller/internal/infra/config"
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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/transport/lora"
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)
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// Application 是整个应用的核心,封装了所有组件和生命周期。
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type Application struct {
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cfgPath string
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Config *config.Config
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Ctx context.Context
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API *api.API
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Infra *Infrastructure
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Domain *DomainServices
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App *AppServices
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}
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// NewApplication 创建并初始化一个新的 Application 实例。
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// 这是应用的“组合根”,所有依赖都在这里被创建和注入。
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func NewApplication(configPath string) (*Application, error) {
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// 1. 初始化基本组件: 配置和日志
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cfg := config.NewConfig()
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if err := cfg.Load(configPath); err != nil {
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return nil, fmt.Errorf("无法加载配置: %w", err)
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}
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logs.InitDefaultLogger(cfg.Log)
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selfCtx := logs.AddCompName(context.Background(), "Application")
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ctx := logs.AddFuncName(selfCtx, selfCtx, "NewApplication")
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// 2. 初始化基础设施和领域服务 (此时它们是解耦的)
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infra, err := initInfrastructure(ctx, cfg)
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if err != nil {
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return nil, fmt.Errorf("初始化基础设施失败: %w", err)
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}
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domain, err := initDomainServices(ctx, cfg, infra)
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if err != nil {
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return nil, fmt.Errorf("初始化领域服务失败: %w", err)
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}
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appServices := initAppServices(ctx, infra, domain)
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// 3. 【核心组装逻辑】创建应用层监听器并注入到基础设施层
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// 此时,所有依赖项(repos, domain services, comm)都已准备就绪
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upstreamHandler := listener.NewLoRaListener(
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selfCtx,
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infra.repos.areaControllerRepo,
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infra.repos.pendingCollectionRepo,
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infra.repos.deviceRepo,
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infra.repos.sensorDataRepo,
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infra.repos.deviceCommandLogRepo,
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infra.repos.otaRepo,
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domain.deviceCommunicator,
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)
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// 根据 LoRa 模式完成最终的绑定
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if cfg.Lora.Mode == config.LoraMode_LoRaWAN {
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// 对于 LoRaWAN,创建真正的 Webhook 处理器并替换掉占位符
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infra.lora.listenHandler = chirp_stack.NewChirpStackListener(selfCtx, upstreamHandler)
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} else {
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// 对于 LoRa Mesh,将处理器注入到已创建的 transport 实例中
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if tp, ok := infra.lora.loraListener.(*lora.LoRaMeshUartPassthroughTransport); ok {
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tp.SetHandler(upstreamHandler)
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}
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}
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// 4. 初始化 API 入口点 (现在可以安全地传入 listenHandler)
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apiServer := api.NewAPI(
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cfg.Server,
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logs.AddCompName(context.Background(), "API"),
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infra.repos.userRepo,
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appServices.pigFarmService,
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appServices.pigBatchService,
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appServices.monitorService,
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appServices.deviceService,
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appServices.deviceTemplateService,
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appServices.areaControllerService,
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appServices.planService,
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appServices.userService,
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appServices.auditService,
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appServices.thresholdAlarmService,
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appServices.nutrientService,
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appServices.rawMaterialService,
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appServices.pigBreedService,
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appServices.pigAgeStageService,
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appServices.pigTypeService,
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appServices.recipeService,
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appServices.inventoryService,
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infra.tokenGenerator,
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infra.lora.listenHandler, // 此处传入的是最终组装好的 handler
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)
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// 5. 组装 Application 对象
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app := &Application{
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cfgPath: configPath,
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Config: cfg,
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Ctx: selfCtx,
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API: apiServer,
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Infra: infra,
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Domain: domain,
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App: appServices,
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}
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return app, nil
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}
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// Start 启动应用的所有组件并阻塞,直到接收到关闭信号。
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func (app *Application) Start() error {
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startCtx, logger := logs.Trace(app.Ctx, app.Ctx, "Start")
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logger.Info("应用启动中...")
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// 1. 启动底层监听器
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if err := app.Infra.lora.loraListener.Listen(startCtx); err != nil {
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return fmt.Errorf("启动 LoRa Mesh 监听器失败: %w", err)
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}
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// 2. 初始化应用状态 (清理、刷新任务等)
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if err := app.initializeState(startCtx, app.cfgPath); err != nil {
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return fmt.Errorf("初始化应用状态失败: %w", err)
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}
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// 3. 启动后台工作协程
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app.Domain.planService.Start(startCtx)
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// 4. 启动 API 服务器
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app.API.Start()
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// 5. 等待关闭信号
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quit := make(chan os.Signal, 1)
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signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
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<-quit
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// 接收到信号后,执行优雅关闭
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return app.Stop()
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}
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// Stop 优雅地关闭应用的所有组件。
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func (app *Application) Stop() error {
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stopCtx, logger := logs.Trace(app.Ctx, app.Ctx, "Stop")
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logger.Info("应用关闭中...")
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// 关闭 API 服务器
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app.API.Stop()
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// 关闭任务执行器
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app.Domain.planService.Stop(stopCtx)
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// 断开数据库连接
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if err := app.Infra.storage.Disconnect(stopCtx); err != nil {
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logger.Errorw("数据库连接断开失败", "error", err)
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}
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// 关闭 LoRa Mesh 监听器
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if err := app.Infra.lora.loraListener.Stop(stopCtx); err != nil {
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logger.Errorw("LoRa Mesh 监听器关闭失败", "error", err)
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}
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// 刷新日志缓冲区
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_ = logger.Sync()
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logger.Info("应用已成功关闭")
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return nil
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}
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