package common

import (
	"errors"
	"fmt"
	"net/http"
	"os"
	"time"
	"videoweb/pub/common/enum/consts"
	"videoweb/pub/common/ipaddr"
	"videoweb/pub/common/log"
	"videoweb/pub/common/srvdef"
	"videoweb/pub/common/useragent"

	"strconv"

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

var (
	cryptSecret string
	env         consts.RunMod
	//routineCount int64
)

// InitGinSecret InitResponseParam
func InitGinSecret(secret string, env_ consts.RunMod) {
	cryptSecret = secret
	env = env_
}

// JSONWriterCache  返回数据并标记需要写入缓存
func JSONWriterCache(c *gin.Context, codeOrErr srvdef.ErrInfoer, data interface{}) {
	code := codeOrErr.GetCode()
	tip := codeOrErr.GetTip()
	msg := codeOrErr.GetMsg()
	var hash bool
	if code != srvdef.Success { //发生错误,记录日志
		var version, sysType, devType string
		id := GetUserId(c)
		ua, _ := GetUA(c)
		if ua.Ver != "" {
			version = ua.Ver
		}
		if ua.SysType != "" {
			sysType = ua.SysType
		}
		if devType != "" {
			devType = ua.DevType
		}
		log.Warn("Error:",
			log.Any("UID", strconv.FormatInt(id, 10)),
			log.Any("IP", ipaddr.ResolveClientIP(c)),
			log.Any("Version", version),
			log.Any(consts.CtxSysType, sysType),
			log.Any("DevType", devType),
			log.Any("Router", c.Request.RequestURI),
			log.Any("PID", os.Getpid()),
			log.Any("Error", data),
			log.Any("Code", code))
	}
	c.Header("writer-cache", "HIT")
	c.JSON(http.StatusOK, gin.H{
		"code": code,
		"hash": hash,
		"msg":  msg,
		"tip":  tip,
		"data": data,
		"time": time.Now().UTC().Format("2006-01-02T15:04:05.000Z"),
	})
}

// ServerJSON  返回数据并处理多语言
func ServerJSON(c *gin.Context, codeOrErr srvdef.ErrInfoer, data interface{}) {
	code := codeOrErr.GetCode()
	tip := codeOrErr.GetTip()
	msg := codeOrErr.GetMsg()
	var hash bool
	if code != srvdef.Success { //发生错误,记录日志
		var version, sysType, devType string
		id := GetUserId(c)
		ua, _ := GetUA(c)
		if ua.Ver != "" {
			version = ua.Ver
		}
		if ua.SysType != "" {
			sysType = ua.SysType
		}
		if devType != "" {
			devType = ua.DevType
		}
		log.Warn("Error:",
			log.Any("UID", strconv.FormatInt(id, 10)),
			log.Any("IP", ipaddr.ResolveClientIP(c)),
			log.Any("Version", version),
			log.Any(consts.CtxSysType, sysType),
			log.Any("DevType", devType),
			log.Any("Router", c.Request.RequestURI),
			log.Any("PID", os.Getpid()),
			log.Any("Error", data),
			log.Any("Code", code))
	}
	c.JSON(http.StatusOK, gin.H{
		"code": code,
		"hash": hash,
		"msg":  msg,
		"tip":  tip,
		"data": data,
		"time": time.Now().UTC().Format("2006-01-02T15:04:05.000Z"),
	})
}

// GetUID  获取用户uid
// oauth.Auth执行后uid有效
func GetUID(ctx *gin.Context) (uid uint64, err error) {
	val, exists := ctx.Get(consts.CtxUserID)
	if !exists {
		err = errors.New("userId not exist")
		return
	}
	uid, ok := val.(uint64)
	if !ok {
		return 0, errors.New("userId type error")
	}
	return
}

func GetUserId(ctx *gin.Context) int64 {
	return ctx.GetInt64(consts.CtxUserID)
}

// GetUA
func GetUA(ctx *gin.Context) (u useragent.UA, err error) {
	val, exists := ctx.Get(consts.CtxUA)
	if !exists {
		err = errors.New("user-agent not exists")
		return
	}
	u, ok := val.(useragent.UA)
	if !ok {
		err = errors.New("user-agent type error")
		return
	}
	return u, nil
}

// GetIP 获取真实IP
func GetIP(ctx *gin.Context) string {
	relIP, exists := ctx.Get(consts.CtxIP)
	if !exists {
		if relIP == "" {
			relIP = ipaddr.ResolveClientIP(ctx)
		}
	}
	v, ok := relIP.(string)
	if !ok {
		return ""
	}
	log.Info(fmt.Sprintf("[IP-ROUTER] %s,PID %d", ctx.GetHeader("X-Forwarded-For"), os.Getpid()))
	return v
}

func IsNilOrEmpty(in interface{}) bool {
	if in == nil || in == "" {
		return true
	}
	return false
}

func AlphabeticColl() []string {
	return []string{"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
		"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"}
}