package middleware

import (
	"box-cost/db"
	"box-cost/db/model"
	"box-cost/db/repo"
	"bytes"
	"context"
	"fmt"
	"io"
	"log"
	"strings"
	"time"

	"github.com/gin-gonic/gin"
)

// 记录日志
func Logger() gin.HandlerFunc {
	return func(c *gin.Context) {
		if strings.Contains(c.Request.URL.Path, "/update") {
			c.Next()
			return
		}

		// 处理请求
		var requestBody bytes.Buffer
		requestBodyBytes, err := io.ReadAll(c.Request.Body)
		if err != nil {
			log.Printf("Error reading body: %v", err)
			return
		}
		requestBody.Write(requestBodyBytes)
		c.Request.Body = io.NopCloser(&requestBody)
		reqb := requestBody.String()

		// 记录响应 body
		// var responseBody bytes.Buffer
		// writer := io.MultiWriter(c.Writer, &responseBody)
		// c.Writer = &bodyLogWriter{body: &responseBody, ResponseWriter: c.Writer, writer: writer}

		// 其他中间件执行,洋葱模型
		// 开始时间
		start := time.Now()
		c.Next()
		// 结束时间
		// resb := responseBody.String()
		session := &repo.RepoSession{
			Ctx:    context.Background(),
			Client: db.MongoClient,
		}
		id, err := CreateLog(start, reqb, "", session, c)

		if err != nil {
			fmt.Println(err)
		}
		fmt.Println("request_log_id: ", id)

	}
}

func CreateLog(start time.Time, reqb string, resb string, session *repo.RepoSession, c *gin.Context) (string, error) {
	_time := time.Since(start).Seconds()
	path := c.Request.URL.Path
	method := c.Request.Method
	ip := c.ClientIP()
	code := c.Writer.Status()
	query := c.Request.URL.RawQuery
	_id, _ := c.Get("userId")
	id := ""
	if _id == nil {
		id = ""
	} else {
		id = _id.(string)
	}
	requesLogs := &model.RequestLogs{
		UserId:     id,
		Path:       path,
		Method:     method,
		Ip:         ip,
		Code:       code,
		Time:       _time * 1000, // ms
		Query:      query,
		Reqbody:    reqb,
		Resbody:    resb,
		CreateTime: time.Now(),
	}
	return repo.RepoAddDoc(session, repo.CollectionRequestLogs, requesLogs)

}

// type bodyLogWriter struct {
// 	gin.ResponseWriter
// 	body   *bytes.Buffer
// 	writer io.Writer
// }

// func (w bodyLogWriter) Write(b []byte) (int, error) {
// 	return w.writer.Write(b)
// }