package tools

import (
	"errors"
	"strings"

	"github.com/gin-gonic/gin"
	"github.com/go-playground/locales/zh"
	ut "github.com/go-playground/universal-translator"
	"github.com/go-playground/validator/v10"
	zhTran "github.com/go-playground/validator/v10/translations/zh"
	jsoniter "github.com/json-iterator/go"
)

var _validate *validator.Validate

func init() {

}

func validate(s interface{}) error {
	zhCh := zh.New()
	uni := ut.New(zhCh)
	trans, _ := uni.GetTranslator("zh")
	_validate = validator.New()
	zhTran.RegisterDefaultTranslations(_validate, trans)
	err := _validate.Struct(s)
	if err != nil {
		for _, err := range err.(validator.ValidationErrors) {
			return errors.New(err.Translate(trans))
		}
	}
	return nil
}

func ParseParams(p interface{}, c *gin.Context) error {
	ct := strings.ToLower(c.Request.Header.Get("Content-Type"))
	if strings.Contains(ct, "application/json") {
		body, _ := c.Get("recook")
		if body != nil {
			err := jsoniter.Unmarshal(body.([]byte), p)
			if err != nil {
				return err
			}
			return validate(p)
		} else {
			return nil
		}
	} else if strings.Contains(ct, "form-data") {
		err := c.Bind(p)
		if err != nil {
			return err
		}
		return validate(p)
	} else {
		return errors.New("当前HTTP参数内容不支持解析")
	}
}

func Params(p interface{}, c *gin.Context) error {
	ct := strings.ToLower(c.Request.Header.Get("Content-Type"))
	if strings.Contains(ct, "application/json") {
		err := c.BindJSON(p)
		if err != nil {
			return err
		}
		return validate(p)
	} else if strings.Contains(ct, "form-data") {
		err := c.Bind(p)
		if err != nil {
			return err
		}
		return validate(p)
	} else {
		return errors.New("当前HTTP参数内容不支持解析")
	}
}