package utils

import (
	"encoding/json"
	"time"
	"video_course/errors"
)

func JSONToMap(str string) (map[string]interface{}, error) {

	var tempMap map[string]interface{}

	err := json.Unmarshal([]byte(str), &tempMap)

	if err != nil {
		err = errors.ErrJsonToMap
		return tempMap, err
	}

	return tempMap, nil
}
func MapToInt32(v interface{}, key string) (i int) {
	f, ok := v.(map[string]interface{})[key].(float64)
	if !ok {
		println(errors.NewServiceErr(errors.JsonToMaptErr, "float64转int32失败，字段名："+key))
		//panic(errors.NewServiceErr(errors.FloatToInt16Err, "float64转int64失败，字段名："+key))
	}
	i = int(f)
	return
}
func MapToInt16(v interface{}, key string) (i int16) {
	f, ok := v.(map[string]interface{})[key].(float64)
	if !ok {
		println(errors.NewServiceErr(errors.JsonToMaptErr, "float64转int16失败，字段名："+key))
		//panic(errors.NewServiceErr(errors.FloatToInt16Err, "float64转int64失败，字段名："+key))
	}
	i = int16(f)
	return
}
func MapToInt64(v interface{}, key string) (i int64) {
	f, ok := v.(map[string]interface{})[key].(float64)
	if !ok {
		println(errors.NewServiceErr(errors.JsonToMaptErr, "无法转成int64,字段名"+key))
	}
	i = int64(f)
	return
}
func MapToString(v interface{}, key string) (str string) {
	f, ok := v.(map[string]interface{})[key].(string)
	if !ok {
		println(errors.NewServiceErr(errors.JsonToMaptErr, "无法找到这个key值"+key))
	}
	str = f
	return
}
func MapToTime(v interface{}, key string) (t time.Time) {

	f, ok := v.(map[string]interface{})[key].(string)
	if !ok {
		println(errors.NewServiceErr(errors.JsonToMaptErr, "无法找到这个key值"+key))
	}

	t, _ = time.Parse(time.RFC3339, f)

	return
}