package wx

import (
	"context"
	"github.com/gogf/gf/v2/crypto/gsha1"
	"github.com/gogf/gf/v2/frame/g"
	"server/utility/ecode"
	"sort"
	"strings"

	"server/api/auth/v1"
)

func (c *ControllerV1) WeChatVertify(ctx context.Context, req *v1.WeChatVertifyReq) (res *v1.WeChatVertifyRes, err error) {

	weChatToken := g.Config().MustGet(ctx, "wechat.token").String()
	// 1. 将 token、timestamp、nonce 组成 slice
	params := []string{weChatToken, req.Timestamp, req.Nonce}
	// 2. 字典序排序
	sort.Strings(params)
	// 3. 拼接字符串
	joined := strings.Join(params, "")
	// 4. SHA1 加密
	encrypt := gsha1.Encrypt(joined)

	// 5. 与 signature 对比
	if encrypt != req.Signature {
		return nil, ecode.InvalidOperation.Sub("微信服务器验证失败")
	}
	g.RequestFromCtx(ctx).Response.WriteJson(req.EchoStr)
	return
}