add initial application structure with configuration, logging, and health check endpoints

.gitignore

@@ -0,0 +1,34 @@
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+*.test
+*.out
+*.log
+
+# Build outputs
+/bin/
+/dist/
+/tmp/
+/build/
+
+# Go workspace
+/vendor/
+/coverage/
+/cover.out
+*.prof
+
+# Local env/config overrides
+.env
+.env.*
+application.local.yaml
+application.*.local.yaml
+
+# IDE/editor
+.idea/
+.vscode/
+
+# OS
+.DS_Store
+Thumbs.db

application.yaml

@@ -0,0 +1,20 @@
+server:
+  port: 8080
+  readTimeout: 5s
+  writeTimeout: 5s
+
+mysql:
+  dsn: "root:mysql_78GywN@tcp(111.228.49.52:3306)/db?parseTime=true&loc=Local"
+
+redis:
+  addr: "111.228.49.52"
+  password: "redis_7aFAxY"
+  db: 0
+
+log:
+  level: info
+  format: json
+
+cron:
+  enabled: true
+  timezone: "Asia/Shanghai"

cmd/gen/controllers/main.go

@@ -0,0 +1,142 @@
+package main
+
+import (
+	"bytes"
+	"fmt"
+	"go/format"
+	"os"
+	"path/filepath"
+	"regexp"
+	"sort"
+)
+
+func main() {
+	controllerDir, err := findControllerDir()
+	if err != nil {
+		fatal(err)
+	}
+
+	ctors, err := findControllerCtors(controllerDir)
+	if err != nil {
+		fatal(err)
+	}
+
+	content, err := renderModule(ctors)
+	if err != nil {
+		fatal(err)
+	}
+
+	outPath := filepath.Join(controllerDir, "module.go")
+	if err := os.WriteFile(outPath, content, 0o644); err != nil {
+		fatal(err)
+	}
+}
+
+func findControllerDir() (string, error) {
+	wd, err := os.Getwd()
+	if err != nil {
+		return "", err
+	}
+
+	if exists(filepath.Join(wd, "module.go")) && exists(filepath.Join(wd, "routes.go")) {
+		return wd, nil
+	}
+
+	candidate := filepath.Join(wd, "internal", "controller")
+	if exists(filepath.Join(candidate, "module.go")) {
+		return candidate, nil
+	}
+
+	return "", fmt.Errorf("could not locate internal/controller")
+}
+
+func findControllerCtors(dir string) ([]string, error) {
+	entries, err := os.ReadDir(dir)
+	if err != nil {
+		return nil, err
+	}
+
+	ctorRe := regexp.MustCompile(`(?m)^func\s+(New[A-Za-z0-9_]*Controller)\s*\(`)
+
+	seen := make(map[string]struct{})
+	for _, entry := range entries {
+		if entry.IsDir() {
+			continue
+		}
+		name := entry.Name()
+		if !hasSuffix(name, "_controller.go") {
+			continue
+		}
+		if name == "module.go" {
+			continue
+		}
+
+		path := filepath.Join(dir, name)
+		data, err := os.ReadFile(path)
+		if err != nil {
+			return nil, err
+		}
+
+		matches := ctorRe.FindAllSubmatch(data, -1)
+		for _, m := range matches {
+			if len(m) < 2 {
+				continue
+			}
+			seen[string(m[1])] = struct{}{}
+		}
+	}
+
+	var ctors []string
+	for k := range seen {
+		ctors = append(ctors, k)
+	}
+	sort.Strings(ctors)
+
+	return ctors, nil
+}
+
+func renderModule(ctors []string) ([]byte, error) {
+	var buf bytes.Buffer
+
+	buf.WriteString("// Code generated by cmd/gen/controllers; DO NOT EDIT.\n")
+	buf.WriteString("package controller\n\n")
+	buf.WriteString("import \"go.uber.org/fx\"\n\n")
+	buf.WriteString("var Module = fx.Options(\n")
+
+	if len(ctors) > 0 {
+		buf.WriteString("\tfx.Provide(\n")
+		for _, ctor := range ctors {
+			buf.WriteString("\t\t")
+			buf.WriteString(ctor)
+			buf.WriteString(",\n")
+		}
+		buf.WriteString("\t),\n")
+	}
+
+	buf.WriteString("\tfx.Invoke(\n\t\tRegisterRoutes,\n\t),\n")
+	buf.WriteString(")\n")
+
+	formatted, err := format.Source(buf.Bytes())
+	if err != nil {
+		return nil, err
+	}
+
+	return formatted, nil
+}
+
+func exists(path string) bool {
+	info, err := os.Stat(path)
+	if err != nil {
+		return false
+	}
+	return !info.IsDir()
+}
+
+func hasSuffix(s, suffix string) bool {
+	return len(s) >= len(suffix) && s[len(s)-len(suffix):] == suffix
+}
+
+func fatal(err error) {
+	fmt.Fprintln(os.Stderr, err)
+	os.Exit(1)
+}

cmd/server/main.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"context"
+	"log"
+
+	"epic-ent/internal/bootstrap"
+)
+
+func main() {
+	app := bootstrap.NewApp()
+
+	if err := app.Start(context.Background()); err != nil {
+		log.Fatalf("failed to start app: %v", err)
+	}
+
+	<-app.Done()
+
+	if err := app.Stop(context.Background()); err != nil {
+		log.Printf("failed to stop app: %v", err)
+	}
+}

go.mod

@@ -0,0 +1,40 @@
+module epic-ent
+
+go 1.24.0
+
+require (
+	github.com/go-sql-driver/mysql v1.9.3
+	github.com/labstack/echo/v4 v4.15.0
+	github.com/redis/go-redis/v9 v9.17.2
+	github.com/robfig/cron/v3 v3.0.1
+	github.com/spf13/viper v1.21.0
+	go.uber.org/fx v1.24.0
+	go.uber.org/zap v1.27.1
+)
+
+require (
+	filippo.io/edwards25519 v1.1.0 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/fsnotify/fsnotify v1.9.0 // indirect
+	github.com/go-viper/mapstructure/v2 v2.5.0 // indirect
+	github.com/labstack/gommon v0.4.2 // indirect
+	github.com/mattn/go-colorable v0.1.14 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.4 // indirect
+	github.com/sagikazarmark/locafero v0.12.0 // indirect
+	github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8 // indirect
+	github.com/spf13/afero v1.15.0 // indirect
+	github.com/spf13/cast v1.10.0 // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
+	github.com/subosito/gotenv v1.6.0 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v1.2.2 // indirect
+	go.uber.org/dig v1.19.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/crypto v0.47.0 // indirect
+	golang.org/x/net v0.49.0 // indirect
+	golang.org/x/sys v0.40.0 // indirect
+	golang.org/x/text v0.33.0 // indirect
+)

go.sum

@@ -0,0 +1,70 @@
+filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
+filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
+github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
+github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k=
+github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
+github.com/go-sql-driver/mysql v1.7.1/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
+github.com/go-sql-driver/mysql v1.9.3 h1:U/N249h2WzJ3Ukj8SowVFjdtZKfu9vlLZxjPXV1aweo=
+github.com/go-sql-driver/mysql v1.9.3/go.mod h1:qn46aNg1333BRMNU69Lq93t8du/dwxI64Gl8i5p1WMU=
+github.com/go-viper/mapstructure/v2 v2.5.0 h1:vM5IJoUAy3d7zRSVtIwQgBj7BiWtMPfmPEgAXnvj1Ro=
+github.com/go-viper/mapstructure/v2 v2.5.0/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
+github.com/labstack/echo/v4 v4.11.4/go.mod h1:noh7EvLwqDsmh/X/HWKPUl1AjzJrhyptRyEbQJfxen8=
+github.com/labstack/echo/v4 v4.15.0 h1:hoRTKWcnR5STXZFe9BmYun9AMTNeSbjHi2vtDuADJ24=
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+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
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+github.com/pelletier/go-toml/v2 v2.2.4 h1:mye9XuhQ6gvn5h28+VilKrrPoQVanw5PMw/TB0t5Ec4=
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+github.com/redis/go-redis/v9 v9.5.1/go.mod h1:hdY0cQFCN4fnSYT6TkisLufl/4W5UIXyv0b/CLO2V2M=
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internal/bootstrap/app.go

@@ -0,0 +1,25 @@
+package bootstrap
+
+import (
+	"go.uber.org/fx"
+
+	"epic-ent/internal/config"
+	"epic-ent/internal/controller"
+	"epic-ent/internal/exception"
+	"epic-ent/internal/infra"
+	"epic-ent/internal/middleware"
+	"epic-ent/internal/repository"
+	"epic-ent/internal/service"
+)
+
+func NewApp() *fx.App {
+	return fx.New(
+		config.Module,
+		infra.Module,
+		repository.Module,
+		service.Module,
+		controller.Module,
+		middleware.Module,
+		exception.Module,
+	)
+}

internal/config/config.go

@@ -0,0 +1,62 @@
+package config
+
+import (
+	"fmt"
+
+	"github.com/spf13/viper"
+)
+
+type Config struct {
+	Server ServerConfig `mapstructure:"server"`
+	MySQL  MySQLConfig  `mapstructure:"mysql"`
+	Redis  RedisConfig  `mapstructure:"redis"`
+	Log    LogConfig    `mapstructure:"log"`
+	Cron   CronConfig   `mapstructure:"cron"`
+}
+
+type ServerConfig struct {
+	Port         int    `mapstructure:"port"`
+	ReadTimeout  string `mapstructure:"readTimeout"`
+	WriteTimeout string `mapstructure:"writeTimeout"`
+}
+
+type MySQLConfig struct {
+	DSN string `mapstructure:"dsn"`
+}
+
+type RedisConfig struct {
+	Addr     string `mapstructure:"addr"`
+	Password string `mapstructure:"password"`
+	DB       int    `mapstructure:"db"`
+}
+
+type LogConfig struct {
+	Level  string `mapstructure:"level"`
+	Format string `mapstructure:"format"`
+}
+
+type CronConfig struct {
+	Enabled  bool   `mapstructure:"enabled"`
+	Timezone string `mapstructure:"timezone"`
+}
+
+func Load() (*Config, error) {
+	v := viper.New()
+	v.SetConfigName("application")
+	v.SetConfigType("yaml")
+	v.AddConfigPath(".")
+
+	v.SetEnvPrefix("APP")
+	v.AutomaticEnv()
+
+	if err := v.ReadInConfig(); err != nil {
+		return nil, fmt.Errorf("read config: %w", err)
+	}
+
+	var cfg Config
+	if err := v.Unmarshal(&cfg); err != nil {
+		return nil, fmt.Errorf("unmarshal config: %w", err)
+	}
+
+	return &cfg, nil
+}

internal/config/module.go

@@ -0,0 +1,7 @@
+package config
+
+import "go.uber.org/fx"
+
+var Module = fx.Options(
+	fx.Provide(Load),
+)

internal/controller/doc.go

@@ -0,0 +1,3 @@
+package controller
+
+//go:generate go run ../../cmd/gen/controllers

internal/controller/health_controller.go

@@ -0,0 +1,22 @@
+package controller
+
+import (
+	"net/http"
+
+	"github.com/labstack/echo/v4"
+
+	"epic-ent/internal/service"
+)
+
+type HealthController struct {
+	svc *service.HealthService
+}
+
+func NewHealthController(svc *service.HealthService) *HealthController {
+	return &HealthController{svc: svc}
+}
+
+func (h *HealthController) Health(c echo.Context) error {
+	status := h.svc.Check()
+	return c.JSON(http.StatusOK, status)
+}

internal/controller/module.go

@@ -0,0 +1,13 @@
+// Code generated by cmd/gen/controllers; DO NOT EDIT.
+package controller
+
+import "go.uber.org/fx"
+
+var Module = fx.Options(
+	fx.Provide(
+		NewHealthController,
+	),
+	fx.Invoke(
+		RegisterRoutes,
+	),
+)

internal/controller/routes.go

@@ -0,0 +1,17 @@
+package controller
+
+import (
+	"github.com/labstack/echo/v4"
+	"go.uber.org/fx"
+)
+
+type RouteParams struct {
+	fx.In
+
+	Echo   *echo.Echo
+	Health *HealthController
+}
+
+func RegisterRoutes(p RouteParams) {
+	p.Echo.GET("/health", p.Health.Health)
+}

internal/controller/user_controller.go

@@ -0,0 +1,22 @@
+package controller
+
+import (
+	"net/http"
+
+	"github.com/labstack/echo/v4"
+
+	"epic-ent/internal/service"
+)
+
+type UserController struct {
+	svc *service.HealthService
+}
+
+func NewUserController(svc *service.HealthService) *HealthController {
+	return &HealthController{svc: svc}
+}
+
+func (h *UserController) Health(c echo.Context) error {
+	//status := h.svc.Check()
+	return c.JSON(http.StatusOK, "你好")
+}

internal/domain/dto/health.go

@@ -0,0 +1,5 @@
+package dto
+
+type HealthRequest struct {
+	Ping string `json:"ping"`
+}

internal/domain/vo/health.go

@@ -0,0 +1,5 @@
+package vo
+
+type HealthStatus struct {
+	Status string `json:"status"`
+}

internal/exception/handler.go

@@ -0,0 +1,14 @@
+package exception
+
+import (
+	"github.com/labstack/echo/v4"
+)
+
+func RegisterErrorHandler(e *echo.Echo) {
+	e.HTTPErrorHandler = func(err error, c echo.Context) {
+		_ = c.JSON(500, map[string]any{
+			"code":    "INTERNAL_ERROR",
+			"message": err.Error(),
+		})
+	}
+}

internal/exception/module.go

@@ -0,0 +1,7 @@
+package exception
+
+import "go.uber.org/fx"
+
+var Module = fx.Options(
+	fx.Invoke(RegisterErrorHandler),
+)

internal/infra/cache/redis.go

@@ -0,0 +1,17 @@
+package cache
+
+import (
+	"github.com/redis/go-redis/v9"
+
+	"epic-ent/internal/config"
+)
+
+func NewRedis(cfg *config.Config) (*redis.Client, error) {
+	rdb := redis.NewClient(&redis.Options{
+		Addr:     cfg.Redis.Addr,
+		Password: cfg.Redis.Password,
+		DB:       cfg.Redis.DB,
+	})
+
+	return rdb, nil
+}

internal/infra/cron/cron.go

@@ -0,0 +1,39 @@
+package cron
+
+import (
+	"context"
+	"time"
+
+	"github.com/robfig/cron/v3"
+	"go.uber.org/fx"
+	"go.uber.org/zap"
+
+	"epic-ent/internal/config"
+)
+
+func RegisterJobs(lc fx.Lifecycle, cfg *config.Config, logger *zap.Logger) {
+	if !cfg.Cron.Enabled {
+		return
+	}
+
+	loc, err := time.LoadLocation(cfg.Cron.Timezone)
+	if err != nil {
+		logger.Warn("invalid timezone, fallback to Local", zap.Error(err))
+		loc = time.Local
+	}
+
+	c := cron.New(cron.WithLocation(loc))
+
+	lc.Append(fx.Hook{
+		OnStart: func(ctx context.Context) error {
+			c.Start()
+			logger.Info("cron started")
+			return nil
+		},
+		OnStop: func(ctx context.Context) error {
+			c.Stop()
+			logger.Info("cron stopped")
+			return nil
+		},
+	})
+}

internal/infra/db/mysql.go

@@ -0,0 +1,18 @@
+package db
+
+import (
+	"database/sql"
+
+	_ "github.com/go-sql-driver/mysql"
+
+	"epic-ent/internal/config"
+)
+
+func NewMySQL(cfg *config.Config) (*sql.DB, error) {
+	db, err := sql.Open("mysql", cfg.MySQL.DSN)
+	if err != nil {
+		return nil, err
+	}
+
+	return db, nil
+}

internal/infra/http/http.go

@@ -0,0 +1,49 @@
+package http
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/labstack/echo/v4"
+	"go.uber.org/fx"
+	"go.uber.org/zap"
+
+	"epic-ent/internal/config"
+)
+
+func NewEcho() *echo.Echo {
+	return echo.New()
+}
+
+func StartServer(lc fx.Lifecycle, cfg *config.Config, e *echo.Echo, logger *zap.Logger) {
+	addr := fmt.Sprintf(":%d", cfg.Server.Port)
+
+	if cfg.Server.ReadTimeout != "" {
+		if d, err := time.ParseDuration(cfg.Server.ReadTimeout); err == nil {
+			e.Server.ReadTimeout = d
+		}
+	}
+	if cfg.Server.WriteTimeout != "" {
+		if d, err := time.ParseDuration(cfg.Server.WriteTimeout); err == nil {
+			e.Server.WriteTimeout = d
+		}
+	}
+
+	lc.Append(fx.Hook{
+		OnStart: func(ctx context.Context) error {
+			logger.Info("http server starting", zap.String("addr", addr))
+			go func() {
+				if err := e.Start(addr); err != nil && err != http.ErrServerClosed {
+					logger.Error("http server stopped", zap.Error(err))
+				}
+			}()
+			return nil
+		},
+		OnStop: func(ctx context.Context) error {
+			logger.Info("http server stopping")
+			return e.Shutdown(ctx)
+		},
+	})
+}

internal/infra/log/logger.go

@@ -0,0 +1,23 @@
+package log
+
+import (
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+
+	"epic-ent/internal/config"
+)
+
+func NewLogger(cfg *config.Config) (*zap.Logger, error) {
+	level := zapcore.InfoLevel
+	if err := level.Set(cfg.Log.Level); err != nil {
+		level = zapcore.InfoLevel
+	}
+
+	zapCfg := zap.NewProductionConfig()
+	zapCfg.Level = zap.NewAtomicLevelAt(level)
+	if cfg.Log.Format == "console" {
+		zapCfg.Encoding = "console"
+	}
+
+	return zapCfg.Build()
+}

internal/infra/module.go

@@ -0,0 +1,24 @@
+package infra
+
+import (
+	"go.uber.org/fx"
+
+	"epic-ent/internal/infra/cache"
+	"epic-ent/internal/infra/cron"
+	"epic-ent/internal/infra/db"
+	"epic-ent/internal/infra/http"
+	infraLog "epic-ent/internal/infra/log"
+)
+
+var Module = fx.Options(
+	fx.Provide(
+		infraLog.NewLogger,
+		db.NewMySQL,
+		cache.NewRedis,
+		http.NewEcho,
+	),
+	fx.Invoke(
+		cron.RegisterJobs,
+		http.StartServer,
+	),
+)

internal/middleware/middleware.go

@@ -0,0 +1,9 @@
+package middleware
+
+import (
+	"github.com/labstack/echo/v4"
+)
+
+func Register(e *echo.Echo) {
+	e.HideBanner = true
+}

internal/middleware/module.go

@@ -0,0 +1,7 @@
+package middleware
+
+import "go.uber.org/fx"
+
+var Module = fx.Options(
+	fx.Invoke(Register),
+)

internal/repository/health_repo.go

@@ -0,0 +1,15 @@
+package repository
+
+import (
+	"epic-ent/internal/domain/vo"
+)
+
+type HealthRepository struct{}
+
+func NewHealthRepository() *HealthRepository {
+	return &HealthRepository{}
+}
+
+func (r *HealthRepository) Check() vo.HealthStatus {
+	return vo.HealthStatus{Status: "ok"}
+}

internal/repository/module.go

@@ -0,0 +1,9 @@
+package repository
+
+import "go.uber.org/fx"
+
+var Module = fx.Options(
+	fx.Provide(
+		NewHealthRepository,
+	),
+)

internal/service/health_service.go

@@ -0,0 +1,18 @@
+package service
+
+import (
+	"epic-ent/internal/domain/vo"
+	"epic-ent/internal/repository"
+)
+
+type HealthService struct {
+	repo *repository.HealthRepository
+}
+
+func NewHealthService(repo *repository.HealthRepository) *HealthService {
+	return &HealthService{repo: repo}
+}
+
+func (s *HealthService) Check() vo.HealthStatus {
+	return s.repo.Check()
+}

internal/service/module.go

@@ -0,0 +1,9 @@
+package service
+
+import "go.uber.org/fx"
+
+var Module = fx.Options(
+	fx.Provide(
+		NewHealthService,
+	),
+)

internal/util/consts.go

@@ -0,0 +1,3 @@
+package util
+
+const AppName = "epic-ent"