package db

import (
	"github.com/gogf/gf/v2/os/gcache"

	"context"
	"fmt"
	"time"
)

func GetTestCached(ctx context.Context) (res *string, err error) {
	cacheKey := fmt.Sprintf("GetTest-%d", 1)

	v, err := gcache.GetOrSetFuncLock(ctx, cacheKey, GetTest, 1*time.Minute)
	if err != nil {
		return nil, err
	}

	err = v.Struct(&res)
	if err != nil {
		return nil, err
	}

	return res, nil
}

func GetTest(ctx context.Context) (value interface{}, err error) {
	var res *string
	str := "123456789"
	res = &str
	return res,nil
}

func GetTest2Cached(ctx context.Context) (res *string, err error) {
	cacheKey := fmt.Sprintf("GetTest2-%d", 1)

	v, err := gcache.GetOrSetFuncLock(ctx, cacheKey, GetTest2, 1*time.Minute) //dead lock
	//v, err := gcache.GetOrSetFunc(ctx, cacheKey, GetTest2, 1*time.Minute) //no dead lock
	if err != nil {
		return nil, err
	}

	err = v.Struct(&res)
	if err != nil {
		return nil, err
	}

	return res, nil
}

func GetTest2(ctx context.Context) (value interface{}, err error) {
	var res *string
	res,err = GetTestCached(ctx)

	return res,nil
}