package server

import (
	"context"
	"github.com/joho/godotenv"
	"github.com/lmittmann/tint"
	"github.com/mattn/go-colorable"
	"log/slog"
	"os"
	"proxy-server/server/orm"
	"proxy-server/server/web"
)

func Start() {
	defer func() {
		err := recover()
		if err != nil {
			slog.Error("服务由于意外的 panic 导致退出", err)
		}
	}()

	ctx := context.Background()

	// 初始化环境变量
	err := godotenv.Load()
	if err != nil {
		slog.Debug("没有本地环境变量文件")
	}

	// 配置日志
	writer := colorable.NewColorable(os.Stdout)
	logger := slog.New(tint.NewHandler(writer, &tint.Options{
		Level: slog.LevelDebug,
		ReplaceAttr: func(_ []string, attr slog.Attr) slog.Attr {
			err, ok := attr.Value.Any().(error)
			if !ok {
				return attr
			}
			return tint.Err(err)
		},
	}))
	slog.SetDefault(logger)

	// 初始化公共组件
	orm.Init()

	// 启动子服务
	goCount := 1
	errChan := make(chan error, goCount)
	ctxC, cancel := context.WithCancel(ctx)
	defer cancel()

	go web.Start(ctxC, errChan)
	//go monitor.Start(ctxC, errChan)
	slog.Info("服务启动成功")

	// 监听异常
	well := true
	for i := 0; i < goCount; i++ {
		err := <-errChan
		if err != nil {
			slog.Error("服务异常退出", err)
			if well { // 第一次出错时取消其他服务
				well = false
				cancel()
			}
		}
	}
	close(errChan)
	slog.Info("服务已全部退出")
}