package lib

import (
	"encoding/json"
	"fmt"

	"go.mongodb.org/mongo-driver/bson"

	"math/rand"

	"reflect"
	"strconv"
	"strings"
	"time"
)

func init() {

}

const Success = 200
const Error = 201

type JSONR struct {
	//必须的大写开头
	Code int16
	Msg  string
	Data interface{} // 泛型
}
type JSONS struct {
	//必须的大写开头
	Code      int16
	Msg       string
	List      interface{}
	Total     int16
	PageIndex int
	PageSize  int
}

func C_Page(list interface{}, PageIndex, PageSize int, Total int64) (Jsons JSONS) {
	Jsons.List = list
	Jsons.Total = int16(Total)
	Jsons.PageIndex = PageIndex
	Jsons.PageSize = PageSize
	//Jsons.PageSize = int16(math.Ceil(float64(Total) / float64(PageSize)))
	return Jsons
}

func Strval(value interface{}) string {
	var key string
	if value == nil {
		return key
	}

	switch value.(type) {
	case float64:
		ft := value.(float64)
		key = strconv.FormatFloat(ft, 'f', -1, 64)
	case float32:
		ft := value.(float32)
		key = strconv.FormatFloat(float64(ft), 'f', -1, 64)
	case int:
		it := value.(int)
		key = strconv.Itoa(it)
	case uint:
		it := value.(uint)
		key = strconv.Itoa(int(it))
	case int8:
		it := value.(int8)
		key = strconv.Itoa(int(it))
	case uint8:
		it := value.(uint8)
		key = strconv.Itoa(int(it))
	case int16:
		it := value.(int16)
		key = strconv.Itoa(int(it))
	case uint16:
		it := value.(uint16)
		key = strconv.Itoa(int(it))
	case int32:
		it := value.(int32)
		key = strconv.Itoa(int(it))
	case uint32:
		it := value.(uint32)
		key = strconv.Itoa(int(it))
	case int64:
		it := value.(int64)
		key = strconv.FormatInt(it, 10)
	case uint64:
		it := value.(uint64)
		key = strconv.FormatUint(it, 10)
	case string:
		key = value.(string)
	case []byte:
		key = string(value.([]byte))
	default:
		newValue, _ := json.Marshal(value)
		key = string(newValue)
	}

	return key
}

// 取一个
func Take_one(a, b string) string {
	if len(a) == 0 {
		return b
	}
	return a
}

func To_int(value interface{}) int {
	var key int
	if value == nil {
		return key
	}
	switch value.(type) {
	case float64:
		key = int(value.(float64))
	case float32:
		key = int(value.(float32))
	case int:
		key = int(value.(int))
	case uint:
		key = int(value.(uint))
	case int8:
		key = int(value.(int8))
	case uint8:
		key = int(value.(uint8))
	case int16:
		key = int(value.(int16))
	case uint16:
		key = int(value.(uint16))
	case int32:
		key = int(value.(int32))
	case uint32:
		key = int(value.(uint32))
	case int64:
		key = int(value.(int64))
	case uint64:
		key = int(value.(uint64))
	case string:
		key, _ = strconv.Atoi(value.(string))
	case []byte:
		key, _ = strconv.Atoi(string(value.([]byte)))
	default:
		newValue, _ := json.Marshal(value)
		key, _ = strconv.Atoi(string(newValue))
	}
	return key
}
func To_int64(value interface{}) int64 {
	var key int64
	if value == nil {
		return key
	}
	switch value.(type) {
	case float64:
		key = int64(value.(float64))
	case float32:
		key = int64(value.(float32))
	case int:
		key = int64(value.(int))
	case uint:
		key = int64(value.(uint))
	case int8:
		key = int64(value.(int8))
	case uint8:
		key = int64(value.(uint8))
	case int16:
		key = int64(value.(int16))
	case uint16:
		key = int64(value.(uint16))
	case int32:
		key = int64(value.(int32))
	case uint32:
		key = int64(value.(uint32))
	case int64:
		key = int64(value.(int64))
	case uint64:
		key = int64(value.(uint64))
	case string:
		key, _ = strconv.ParseInt(value.(string), 10, 64)
	case []byte:
		key, _ = strconv.ParseInt(string(value.([]byte)), 10, 64)
	default:
		newValue, _ := json.Marshal(value)
		key, _ = strconv.ParseInt(string(newValue), 10, 64)
	}
	return key
}

func To_float32(value interface{}) float32 {
	var key float32
	if value == nil {
		return key
	}

	switch value.(type) {
	case float64:
		key = float32(value.(float64))
	case float32:
		key = float32(value.(float32))
	case int:
		key = float32(value.(int))
	case uint:
		key = float32(value.(uint))
	case int8:
		key = float32(value.(int8))
	case uint8:
		key = float32(value.(uint8))
	case int16:
		key = float32(value.(int16))
	case uint16:
		key = float32(value.(uint16))
	case int32:
		key = float32(value.(int32))
	case uint32:
		key = float32(value.(uint32))
	case int64:
		key = float32(value.(int64))
	case uint64:
		key = float32(value.(uint64))
	case string:
		key_float64, _ := strconv.ParseFloat(value.(string), 32/64)
		key = float32(key_float64)
	case []byte:
		key_float64, _ := strconv.ParseFloat(string(value.([]byte)), 32/64)
		key = float32(key_float64)
	default:
		newValue, _ := json.Marshal(value)
		key_float64, _ := strconv.ParseFloat(string(newValue), 32/64)
		key = float32(key_float64)
	}

	key_float64, _ := strconv.ParseFloat(fmt.Sprintf("%.2f", key), 32/64)
	key = float32(key_float64)

	return key
}

func To_string(value interface{}) string {
	var key string
	if value == nil {
		return key
	}

	switch value.(type) {
	case float64:
		ft := value.(float64)
		key = strconv.FormatFloat(ft, 'f', -1, 64)
	case float32:
		ft := value.(float32)
		key = strconv.FormatFloat(float64(ft), 'f', -1, 64)
	case int:
		it := value.(int)
		key = strconv.Itoa(it)
	case uint:
		it := value.(uint)
		key = strconv.Itoa(int(it))
	case int8:
		it := value.(int8)
		key = strconv.Itoa(int(it))
	case uint8:
		it := value.(uint8)
		key = strconv.Itoa(int(it))
	case int16:
		it := value.(int16)
		key = strconv.Itoa(int(it))
	case uint16:
		it := value.(uint16)
		key = strconv.Itoa(int(it))
	case int32:
		it := value.(int32)
		key = strconv.Itoa(int(it))
	case uint32:
		it := value.(uint32)
		key = strconv.Itoa(int(it))
	case int64:
		it := value.(int64)
		key = strconv.FormatInt(it, 10)
	case uint64:
		it := value.(uint64)
		key = strconv.FormatUint(it, 10)
	case string:
		key = value.(string)
	case []byte:
		key = string(value.([]byte))
	default:
		newValue, _ := json.Marshal(value)
		key = string(newValue)
	}
	return key
}

func Random(min, max int) int {
	rand.Seed(time.Now().Unix()) //Seed生成的随机数
	return rand.Intn(max-min) + min
}

// #取得随机字符串：通过打乱slice来操作
func GetRandstring(length int, char string, rand_x int64) string {
	if length < 1 {
		return ""
	}

	if len(char) <= 6 || len(char) <= length {
		char = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
	}

	charArr := strings.Split(char, "")
	ran := rand.New(rand.NewSource(time.Now().Unix() + rand_x))

	l := len(charArr)
	for i := l - 1; i > 0; i-- {
		r := ran.Intn(i)
		charArr[r], charArr[i] = charArr[i], charArr[r]
	}
	rchar := charArr[:length]
	return strings.Join(rchar, "")
}

// 判断时间是当年的第几周
func WeekByDate() string {
	t := time.Now()
	yearDay := t.YearDay()
	yearFirstDay := t.AddDate(0, 0, -yearDay+1)
	firstDayInWeek := int(yearFirstDay.Weekday())

	//今年第一周有几天
	firstWeekDays := 1
	if firstDayInWeek != 0 {
		firstWeekDays = 7 - firstDayInWeek + 1
	}
	var week int
	if yearDay <= firstWeekDays {
		week = 1
	} else {
		week = (yearDay-firstWeekDays)/7 + 2
	}
	return fmt.Sprintf("%d%02d", t.Year()%100, week) // 2253
}

// 将 时间格式为 bson.M 时间格式
func MongdbJsonHtime(ArticleSlide bson.M) bson.M {
	bson_M := bson.M{}
	for key, value := range ArticleSlide {
		//logs.Println(reflect.TypeOf(value).String())
		switch reflect.TypeOf(value).String() {
		case "map[string]interface {}":
			jsonFind_M := bson.M{}
			data, _ := json.Marshal(value.(map[string]interface{}))
			err := json.Unmarshal(data, &jsonFind_M)
			if err == nil {
				bson_M[key] = MongdbJsonHtime(jsonFind_M)
			}

			break
		case "[]interface {}":
			bson_M_list := []bson.M{}
			for _, valuex := range value.([]interface{}) {
				if reflect.TypeOf(valuex).String() == "map[string]interface {}" {
					jsonFind_M := bson.M{}
					data, _ := json.Marshal(valuex.(map[string]interface{}))
					err := json.Unmarshal(data, &jsonFind_M)
					if err == nil {
						bson_M_list = append(bson_M_list, MongdbJsonHtime(jsonFind_M))
					}
				}
			}
			bson_M[key] = bson_M_list
			//return json_r
			break
		default:
			t1, err := time.ParseInLocation("2006-01-02 15:04:05", value.(string), time.Local) // +8  时差
			if err == nil {
				bson_M[key] = t1
			} else {
				bson_M[key] = value
			}

			break
		}
	}

	return bson_M
}

// 判断字符串是否在数组中
func StringExistsInSlice(str string, slice []string) bool {
	for _, s := range slice {
		if s == str {
			return true
		}
	}
	return false
}

// 获取 JSON 指定位置  field : "AAA.BBB.d_name"
func JsonGetField(data map[string]interface{}, field string) interface{} {
	fields := strings.Split(field, ".")
	result := data
	for _, f := range fields {
		if val, ok := result[f]; ok {
			switch val.(type) {
			case map[string]interface{}:
				result = val.(map[string]interface{})
			default:
				return val
			}
		} else {
			return nil
		}
	}
	return result
}

// 获取 JSON 指定位置 data:修改的field必须存在  field : "AAA.BBB.d_name"   value: 123
func JsonSetField(data map[string]interface{}, field string, value interface{}) {
	fields := strings.Split(field, ".")
	current := data
	for i, fieldv := range fields {
		if i == len(fields)-1 {
			current[fieldv] = value
		} else {
			next, ok := current[fieldv].(map[string]interface{})
			if !ok {
				return
			}
			current = next
		}
	}
}

// 复制一份 Map
func CopyMap(inputMap map[string]interface{}) map[string]interface{} {
	copiedMap := make(map[string]interface{})
	for key, value := range inputMap {
		copiedMap[key] = value
	}
	return copiedMap
}