// Copyright 2020 github.com. All rights reserved.
// Use of this source code is governed by github.com.

package utils

import (
	"smart-enterprise-management-gateway/errors"
	"strconv"

	"github.com/tidwall/gjson"

	"github.com/dgrijalva/jwt-go"
	"github.com/gin-gonic/gin"
	"github.com/jaryhe/gopkgs/logger"
	"go.uber.org/zap"
	"github.com/jaryhe/gopkgs/jwtwrapper"
	"google.golang.org/grpc/status"
)

// GetJwtIdFromCtx 从 gin 上下文中获取 id
func GetJwtIdFromCtx(ctx *gin.Context) (int64, string, error) {
	// 从上下文获取信息
	value, ok := ctx.Get("claims")
	if !ok {
		logger.Error("func",
			zap.String("call", "ctx.Get"),
			zap.String("error", "no claims data"))
		return 0,"", errors.ParamsError
	}

	// 解析数据
	claims, ok := value.(*jwt.StandardClaims)
	if !ok {
		logger.Error("func",
			zap.String("call", "Claims assert"),
			zap.String("error", "NOT Claims type"))
		return 0,"", errors.ParamsError
	}

	// 类型转换
	id, _ := strconv.ParseInt(claims.Id, 10, 64)
	userName := gjson.GetBytes(StrToBytes(claims.Subject), "user_name").String()
	return id, userName, nil
}

func GetSupper(ctx *gin.Context) (bool, error) {
	value, ok := ctx.Get("claims")
	if !ok {
		logger.Error("func",
			zap.String("call", "ctx.Get"),
			zap.String("error", "no claims data"))
		return false, errors.ParamsError
	}

	// 解析数据
	claims, ok := value.(*jwt.StandardClaims)
	if !ok {
		logger.Error("func",
			zap.String("call", "Claims assert"),
			zap.String("error", "NOT Claims type"))
		return false, errors.ParamsError
	}

	supper := gjson.GetBytes(StrToBytes(claims.Subject), "supper").Bool()
	return supper, nil
}

// GetJwtIdFromCtx 从 gin 上下文中获取 id
func GetJwtProjectIdFromCtx(ctx *gin.Context) (int64, error) {
	// 从上下文获取信息
	value, ok := ctx.Get("claims")
	if !ok {
		logger.Error("func",
			zap.String("call", "ctx.Get"),
			zap.String("error", "no claims data"))
		return 0, errors.ParamsError
	}

	// 解析数据
	claims, ok := value.(*jwt.StandardClaims)
	if !ok {
		logger.Error("func",
			zap.String("call", "Claims assert"),
			zap.String("error", "NOT Claims type"))
		return 0, errors.ParamsError
	}

	// 类型转换
	id := gjson.GetBytes(StrToBytes(claims.Subject), "project_id").Int()

	return id, nil
}

func EmailTokenVeriy(token string) (uid int64, projectId int64, name string, email string, err error) {
	// 解析token
	claims, err := jwtwrapper.ParseToken(token)
	if err != nil {
		switch err.(*jwt.ValidationError).Errors {
		case jwt.ValidationErrorExpired:
			return 0, 0, "", "", status.Error(10010, "凭据过期")

		default:
			return 0, 0, "", "", status.Error(10010, "凭据错误")
		}
		return 0, 0, "", "",status.Error(10010, "凭据错误")
	}

	name = gjson.GetBytes([]byte(claims.Subject), "user_name").String()
	email = gjson.GetBytes([]byte(claims.Subject), "email").String()
	if email == "" {
		return 0, 0, "", "", status.Error(10010, "邮箱为空")
	}
	uid, _ = strconv.ParseInt(claims.Id, 10, 64)
	projectId = gjson.GetBytes([]byte(claims.Subject), "project_id").Int()
	return uid, projectId, name, email, nil
}