package bo

import (
	"encoding/json"
	"errors"
	"fmt"
	"io/ioutil"
	"log"
	"os"
	"scd_check_tools/email"
	"scd_check_tools/global"
	"scd_check_tools/logger"
	"scd_check_tools/models/enum"
	"scd_check_tools/mqtt"
	"scd_check_tools/tools"
	"strconv"
	"strings"
	"sync"

	"github.com/astaxie/beego/orm"

	_ "github.com/astaxie/beego/orm"
)

type Global_sys_param struct {
	Param_name  string `orm:"pk"`
	Param_value string `orm:"size(2000)"`
	Param_memo  string `orm:"size(50)"`
}

func init() {
	orm.RegisterModel(new(Global_sys_param))
}

//初始化加载系统参数。建议在系统启动时调用
func LoadSysParam() {
	//用户密码规则及强度:simple|strong
	GetSysParamValue("user_pwd_rule", "simple")
	//初始化用户密码过期时间（天）。默认为60天，为0时永不过期
	GetSysParamValue("user_pwd_expire_day", "60")
	//初始化用户密码修改模式。默认只能管理员修改修改。可配置成自己可修改
	GetSysParamValue("user_pwd_edit_mod", "admin") //admin|self
	//初始化登录失败锁定次数
	GetSysParamValue("login_fail_maxcount", "5") //默认为5次
	//初始化登录失败锁定时长，单位：秒
	GetSysParamValue("login_fail_locktime", "180") //默认180秒
	r, _ := GetSysParamValue("session_timeout", "600")
	rInt, _ := strconv.Atoi(r)
	if rInt > 60 {
		global.SessionTimeout = rInt
	} else {
		//永不过期
		global.SessionTimeout = 0
	}
	loginFailMaxCount, _ := GetSysParamValue("login_fail_maxcount", "5")
	global.LoginFailMaxCount, _ = strconv.Atoi(loginFailMaxCount)
	global.UserLoginClientLimt, _ = GetSysParamValue("user_login_client_limt", "none")
	global.AllowAccessIps, _ = GetSysParamValue("allow_access_ips", "*")
	//初始化人像比对相似度
	//r, _ = GetSysParamValue("FaceSameValue", "60")
	//global.FaceSameValue = r
	//初始化Mqtt 地址参数。前端页面连接时的信息
	//获取配置的mqtt地址
	mqttinfo, _ := GetSysParamValue("Mqtt_JS_URL", "")
	if mqttinfo == "" {
		cnffile := "conf/mqtt.cnf"
		fileHanlder, err := os.Open(cnffile)
		if err == nil {
			txt, _ := ioutil.ReadAll(fileHanlder)
			fileHanlder.Close()
			txtStr := string(txt)
			if txtStr != "" {
				cfgdata := mqtt.Config{}
				err = json.Unmarshal(txt, &cfgdata)
				if err == nil {
					mqttinfo = cfgdata.Host + ":8083" //mqtt的js协议默认端口是8083
					if cfgdata.Host == "127.0.0.1" || cfgdata.Host == "" {
						//获取本机地址
						mqttinfo, _ := tools.LocalIPv4()
						mqttinfo = mqttinfo + ":8083"
					}
					sp := Global_sys_param{Param_name: "Mqtt_JS_URL", Param_value: mqttinfo, Param_memo: "mqtt的js库连接地址"}
					SaveSysParam(sp)
				}
			}
		}
	}
}

func SaveSysParam(obj Global_sys_param, userinfo ...map[string]interface{}) (result int64, err error) {
	if obj.Param_name == "log_fliterrule_staff_list" && obj.Param_value != "" {
		//需要验证用户名称有效性
		usernames := strings.ReplaceAll(obj.Param_value, "，", ",")
		usernameList := strings.Split(usernames, ",")
		for _, uname := range usernameList {
			has, _ := HasUserName(uname)
			if !has {
				return 0, errors.New("用户名称" + uname + "不存在！")
			}
		}
	}
	if obj.Param_name == "allow_access_ips" {
		if obj.Param_value != "" && obj.Param_value != "*" {
			// 判断ip有效性
			if !tools.VerifyIPFormat(obj.Param_value) {
				return 0, errors.New("无效的IP或IP段格式！")
			}
		}
	}
	if obj.Param_name == "log_alarm_email" && obj.Param_value != "" {
		//邮箱格式校验
		if !tools.VerifyEmailFormat(obj.Param_value) {
			return 0, errors.New("邮箱格式不正确！")
		}
		if !email.EmailConfig.Enable {
			return 0, errors.New("系统还未配置邮件发送！")
		}
	}
	if obj.Param_name == "log_size_max" {
		//日志容量阈值配置
		v, er := strconv.Atoi(obj.Param_value)
		if er != nil {
			return 0, errors.New("容量阈值只能为数值！")
		}
		if v <= 0 {
			return 0, errors.New("容量阈值必须大于0！")
		}
	}
	if obj.Param_name == "log_size_alarm1" {
		//日志预警阈值配置
		v, er := strconv.Atoi(obj.Param_value)
		if er != nil {
			return 0, errors.New("预警阈值只能为数值！")
		}
		if v <= 0 {
			return 0, errors.New("预警阈值必须大于0！")
		}
		v2, _ := GetSysParamValue("log_size_alarm2", "0")
		if v2 != "0" {
			v2v, _ := strconv.Atoi(v2)
			if v > v2v {
				return 0, errors.New("预警阈值不能大于告警阈值！")
			}
		}
	}
	if obj.Param_name == "log_size_alarm2" {
		//日志告警阈值配置
		v, er := strconv.Atoi(obj.Param_value)
		if er != nil {
			return 0, errors.New("告警阈值只能为数值！")
		}
		if v <= 0 {
			return 0, errors.New("告警阈值必须大于0！")
		}
		v2, _ := GetSysParamValue("log_size_alarm1", "0")
		if v2 != "0" {
			v2v, _ := strconv.Atoi(v2)
			if v < v2v {
				return 0, errors.New("告警阈值不能小于预警阈值！")
			}
		}
	}
	dblog := new(SystemLog)
	if len(userinfo) == 0 {
		dblog.SetUserInfo(map[string]interface{}{"name": "", "ip": "127.0.0.1"})
		dblog.Eventtype = enum.OptEventType_System
	} else {
		dblog.SetUserInfo(userinfo[0])
		dblog.Eventtype = enum.OptEventType_Bus
	}
	dblog.Audittype = enum.AuditType_admin_system_paramater
	dblog.Logtype = enum.LogType_Update
	dblog.Eventlevel = enum.OptEventLevel_Hight
	dblog.Description = fmt.Sprintf("保存系统参数，数据：%+v", obj)
	o := orm.NewOrm()
	readObj := Global_sys_param{Param_name: obj.Param_name}
	has := o.Read(&readObj)
	var id int64
	if has == nil {
		id, err = o.Update(&obj)
	} else if has == orm.ErrNoRows {
		dblog.Logtype = enum.LogType_Insert
		id, err = o.Insert(&obj)
	} else {
		return 0, err
	}
	if err != nil {
		logger.Logger.Error(err)
		dblog.Fail2()
		return 0, nil
	}
	dblog.Success2()
	global.GoCahce.Set(obj.Param_name, obj.Param_value, -1)
	switch obj.Param_name {
	case "session_timeout":
		if tools.IsEmpty(obj.Param_value) == "" {
			global.SessionTimeout = 0
		} else {
			global.SessionTimeout, _ = strconv.Atoi(obj.Param_value)
		}
	case "login_fail_maxcount":
		global.LoginFailMaxCount, _ = strconv.Atoi(obj.Param_value)
	case "login_fail_locktime":
		global.LoginFailLockTime, _ = strconv.Atoi(obj.Param_value)
		if global.LoginFailLockTime <= 0 {
			global.LoginFailLockTime = 180
		}
	case "user_pwd_expire_day":
		if obj.Param_value == "0" {
			//永不过期,设置所有用户的密码过期时间
			o.Raw("update t_data_user set pwd_expire=?", "1970-01-01 00:00:00").Exec()
		} else {
			o.Raw("update t_data_user set pwd_expire=date_add(now(),interval ? DAY)", obj.Param_value).Exec()
		}
	case "user_login_client_limt":
		if obj.Param_value != "none" && obj.Param_value != "o2o" {
			log.Println("无效的user_login_client_limt参数值：" + obj.Param_value)
		} else {
			global.UserLoginClientLimt = obj.Param_value
		}
	case "allow_access_ips":
		if obj.Param_value == "" {
			obj.Param_value = "*"
		}
		global.AllowAccessIps = obj.Param_value
		//重新初始化已经访问ip队列
		global.AccessedIps = sync.Map{}
	}

	return id, err
}

func GetSysParamValue(param_name string, defaultvalue string) (result string, err error) {
	if v, has := global.GoCahce.Get(param_name); has {
		return tools.IsEmpty(v), nil
	}
	o := orm.NewOrm()
	v := Global_sys_param{Param_name: param_name}
	if err = o.Read(&v); err == nil {
		global.GoCahce.Set(param_name, v.Param_value, -1)
		return v.Param_value, nil
	} else {
		v.Param_value = defaultvalue
		SaveSysParam(v)
		return defaultvalue, nil
	}
}

func GetSysParamList(obj Global_sys_param, userinfo map[string]interface{}) (maps []orm.Params, err error) {
	dblog := new(SystemLog)
	dblog.SetUserInfo(userinfo)
	dblog.Audittype = enum.AuditType_admin_system_paramater
	dblog.Logtype = enum.LogType_Query
	dblog.Eventlevel = enum.OptEventLevel_Low
	o := orm.NewOrm()
	var num int64
	var dberr error
	if obj.Param_name != "" {
		sql := "select * FROM global_sys_param WHERE param_name=?"
		dblog.Description = fmt.Sprintf("SQL:%s，参数：%+v", sql, obj.Param_name)
		num, dberr = o.Raw(sql, obj.Param_name).Values(&maps)
	} else {
		sql := "select * FROM global_sys_param"
		dblog.Description = sql
		num, dberr = o.Raw(sql).Values(&maps)
	}
	if dberr == nil && num > 0 {
		dblog.Success2()
		return maps, nil
	} else {
		dblog.Fail2()
		logger.Logger.Error(dberr, dblog.Description)
	}
	return nil, dberr
}