package main

import (
	"git.ipao.vip/rogeecn/mp-qvyun/pkg/wechat"
	"github.com/gofiber/fiber/v3"
	"github.com/gofiber/fiber/v3/log"
)

func VerifyWechatServer(wechatClient *wechat.Client) fiber.Handler {
	return func(c fiber.Ctx) error {
		// get the query parameters
		signature := c.Query("signature")
		timestamp := c.Query("timestamp")
		nonce := c.Query("nonce")
		echostr := c.Query("echostr")

		if signature == "" || timestamp == "" || nonce == "" || echostr == "" {
			return c.Next()
		}

		log.Infof(
			"begin verify signature, signature: %s, timestamp: %s, nonce: %s, echostr: %s",
			signature,
			timestamp,
			nonce,
			echostr,
		)

		// verify the signature
		if err := wechatClient.VerifyServer(signature, timestamp, nonce); err != nil {
			return c.SendString(err.Error())
		}

		return c.SendString(echostr)
	}
}