package middleware

import (
	"IotAdmin/app/system/service/dto"
	"IotAdmin/common"
	"IotAdmin/core/sdk/pkg"
	"bufio"
	"bytes"
	"encoding/json"
	"io"
	"net/http"
	"strconv"
	"strings"
	"time"

	extCfg "IotAdmin/config"
	"IotAdmin/core/sdk"
	"IotAdmin/core/sdk/api"
	"IotAdmin/core/sdk/config"
	"IotAdmin/core/sdk/pkg/jwt-auth/user"

	"github.com/gin-gonic/gin"

	"IotAdmin/common/global"
)

// LoggerToFile 日志记录到文件
func LoggerToFile(c *gin.Context) {
	log := api.GetRequestLogger(c)
	// 开始时间
	startTime := time.Now()
	// 处理请求
	var body string
	switch c.Request.Method {
	case http.MethodPost, http.MethodPut, http.MethodGet, http.MethodDelete:
		bf := bytes.NewBuffer(nil)
		wt := bufio.NewWriter(bf)
		_, err := io.Copy(wt, c.Request.Body)
		if err != nil {
			log.Warnf("copy body error, %s", err.Error())
			err = nil
		}
		rb, _ := io.ReadAll(bf)
		c.Request.Body = io.NopCloser(bytes.NewBuffer(rb))
		body = string(rb)
	}

	c.Next()
	url := c.Request.RequestURI
	if strings.Index(url, "logout") > -1 ||
		strings.Index(url, "login") > -1 {
		return
	}
	// 结束时间
	endTime := time.Now()
	if c.Request.Method == http.MethodGet || c.Request.Method == http.MethodOptions {
		return
	}

	rt, bl := c.Get("result")
	var result = ""
	if bl {
		rb, err := json.Marshal(rt)
		if err != nil {
			log.Warnf("json Marshal result error, %s", err.Error())
		} else {
			result = string(rb)
		}
	}

	st, bl := c.Get("status")
	var statusBus = 0
	if bl {
		statusBus = st.(int)
	}

	// 请求方式
	reqMethod := c.Request.Method
	// 请求路由
	reqUri := c.Request.RequestURI
	// 状态码
	statusCode := c.Writer.Status()
	// 请求IP
	clientIP := common.GetClientIP(c)
	// 执行时间
	latencyTime := endTime.Sub(startTime)
	// 日志格式
	logData := map[string]interface{}{
		"statusCode":  statusCode,
		"latencyTime": latencyTime,
		"clientIP":    clientIP,
		"method":      reqMethod,
		"uri":         reqUri,
	}
	log.WithFields(logData).Info()

	if c.Request.Method != "OPTIONS" && config.LoggerConfig.EnabledDB && statusCode != 404 {
		SetDBOperLog(c, clientIP, statusCode, reqUri, reqMethod, latencyTime, body, result, statusBus)
	}
}

// SetDBOperLog 写入操作日志表 fixme 该方法后续即将弃用
func SetDBOperLog(c *gin.Context, clientIP string, statusCode int, reqUri string, reqMethod string, latencyTime time.Duration, body string, result string, status int) {

	oLog := api.GetRequestLogger(c)
	l := make(map[string]interface{})
	l["_fullPath"] = c.FullPath()
	l["operUrl"] = reqUri
	l["operIp"] = clientIP
	l["operLocation"] = pkg.GetLocation(clientIP, extCfg.ExtConfig.AMap.Key)
	l["operName"] = user.GetUserName(c)
	l["orgName"] = user.GetOrgName(c)
	l["requestMethod"] = reqMethod
	l["operatorType"] = GetFuncMethod(reqUri, reqMethod)
	l["operParam"] = body
	l["operTime"] = time.Now()
	l["jsonResult"] = result
	l["latencyTime"] = latencyTime.String()
	l["statusCode"] = statusCode
	l["userAgent"] = c.Request.UserAgent()
	l["createBy"] = user.GetUserId(c)
	l["updateBy"] = user.GetUserId(c)
	if status == http.StatusOK {
		l["status"] = dto.OperaStatusEnable
	} else {
		l["status"] = dto.OperaStatusDisable
	}

	q := sdk.Runtime.GetMemoryQueue(c.Request.Host)
	message, err := sdk.Runtime.GetStreamMessage("", global.OperateLog, l)
	if err != nil {
		oLog.Errorf("GetStreamMessage error, %s", err.Error())
		//日志报错错误，不中断请求
	} else {
		err = q.Append(message)
		if err != nil {
			oLog.Errorf("Append message error, %s", err.Error())
		}
	}
}

const (
	ADD = iota + 1
	UPDATE
	DELETE
	EXPORT
	IMPORT
	LOGIN
	LOGOUT
	AUTH
	START
	STOP
	GEN
	CLEAN
	REFRESH
)

func GetFuncMethod(url string, method string) string {
	m := ADD
	if strings.Index(url, "/api/logout") > -1 {
		m = LOGOUT
	} else if strings.Index(url, "/api/login") > -1 {
		m = LOGIN
	} else if strings.Index(url, "/api/refresh-token") > -1 {
		m = LOGIN
	} else if strings.Index(url, "/import") > -1 {
		m = IMPORT
	} else if strings.Index(url, "/export") > -1 {
		m = EXPORT
	} else if strings.Index(url, "/auth") > -1 {
		m = AUTH
	} else if strings.Index(url, "/start") > -1 {
		m = START
	} else if strings.Index(url, "/stop") > -1 {
		m = STOP
	} else if strings.Index(url, "/api/sys/gen-") > -1 {
		m = GEN
	} else if strings.Index(url, "/clean") > -1 {
		m = CLEAN
	} else if strings.Index(url, "/refresh") > -1 {
		m = REFRESH
	} else {
		switch method {
		case "POST":
			m = ADD
		case "PUT":
			m = UPDATE
		case "DELETE":
			m = DELETE
		default:
			return ""
		}
	}

	return strconv.Itoa(m)
}

//func GetApi(c *gin.Context) (*models.SysApi, error) {
//	db, err := pkg.GetOrm(c)
//	sysApi := &models.SysApi{}
//	if err != nil {
//		log.Errorf("get db error, %s", err.Error())
//		response.Error(c, 500, err, "数据库连接获取失败")
//		return nil, err
//	}
//	db.Table(sysApi.TableName()).First(sysApi, "path = ?", c.Request.RequestURI)
//	return sysApi, nil
//
//}