package init

import (
	"fmt"
	"github.com/pkg/errors"
	"reflect"
	"runtime"
)

var cfgPath string

func SetCfg(cfg string) {
	cfgPath = cfg
}

/*
	init 包内处理项目初始化流程 包括:

	通用
		1. Config viper 读入
		2. Logger zap
	业务
		3. Router gin
		4. DB、client...
*/

// InitFundamental APP 非业务逻辑部分初始化
//
//	func call return error 程序应该停止运行
func InitFundamental() error {
	return mustSuccess(initConfigWarpDefault, initLogger)
}

func InitServer() error {
	return mustSuccess(
		initConfigWarpDefault,
		initLogger,
		//initFileSystem,
		//initDB,
		//initDBTables,
		//initService,
	)
}

var (
	// ErrorInitFundamental mean that initFundamental() return error then program continue running!
	ErrorInitFundamental = errors.New("app fundamental init error! ")
)

type Func func() error

func mustSuccess(fn ...Func) (err error) {
	for _, f := range fn {
		err = f()
		if err != nil {
			ptr := reflect.ValueOf(f).Pointer()
			fi := runtime.FuncForPC(ptr)
			err = fmt.Errorf("%s error! \ncause: %w", fi.Name(), err)
			return
		}
	}
	return
}