first commit

cmd/server/main.go

@@ -0,0 +1,75 @@
+// Command server 是 portal-mini-go 的统一服务入口，
+// 承载 10 个小程序与后台管理。
+package main
+
+import (
+	"log/slog"
+	"os"
+	"strconv"
+	"time"
+
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+
+	"portal-mini-go/internal/pkg/config"
+	"portal-mini-go/internal/pkg/session"
+	"portal-mini-go/internal/router"
+)
+
+func main() {
+	cfg, err := config.Load("")
+	if err != nil {
+		slog.Error("load config", slog.Any("err", err))
+		os.Exit(1)
+	}
+	setupLogger(cfg.Logging)
+
+	db, err := gorm.Open(mysql.Open(cfg.MySQL.DSN()), &gorm.Config{})
+	if err != nil {
+		slog.Error("open db", slog.Any("err", err))
+		os.Exit(1)
+	}
+
+	sqlDB, err := db.DB()
+	if err != nil {
+		slog.Error("get sql.DB", slog.Any("err", err))
+		os.Exit(1)
+	}
+	sqlDB.SetMaxIdleConns(cfg.MySQL.MaxIdleConns)
+	sqlDB.SetMaxOpenConns(cfg.MySQL.MaxOpenConns)
+	sqlDB.SetConnMaxLifetime(time.Duration(cfg.MySQL.ConnMaxLifetime) * time.Second)
+
+	store := session.NewMemoryStore()
+
+	r := router.New(cfg, db, store)
+
+	addr := ":" + strconv.Itoa(cfg.Server.Port)
+	slog.Info("server starting", slog.String("addr", addr))
+	if err := r.Run(addr); err != nil {
+		slog.Error("server run", slog.Any("err", err))
+		os.Exit(1)
+	}
+}
+
+func setupLogger(lc config.LoggingConfig) {
+	var level slog.Level
+	switch lc.Level {
+	case "info":
+		level = slog.LevelInfo
+	case "warn":
+		level = slog.LevelWarn
+	case "error":
+		level = slog.LevelError
+	default:
+		level = slog.LevelDebug
+	}
+
+	var handler slog.Handler
+	opts := &slog.HandlerOptions{Level: level}
+	if lc.Format == "json" {
+		handler = slog.NewJSONHandler(os.Stdout, opts)
+	} else {
+		handler = slog.NewTextHandler(os.Stdout, opts)
+	}
+	slog.SetDefault(slog.New(handler))
+}