package utility

import (
	"bytes"
	"encoding/json"
	"fmt"
	"github.com/shopspring/decimal"
	"github.com/sirupsen/logrus"
	"github.com/spf13/cast"
	"math"
	"time"
)

func FormatInt64ToTimeStr(dateNum int64) string {
	stamp := time.Unix(dateNum, 0)
	return stamp.Format("2006-01-02")
}

func FormatToBytes(data interface{}) []byte {
	content, _ := json.Marshal(data)

	return content
}

// IsEven 判断是偶数
func IsEven(num int) bool {
	if num%2 == 0 {
		return true
	}
	return false
}

// Round 四舍五入保留小数，默认2位
func Round(value float64, args ...interface{}) (v string) {
	var places int32 = 2
	if len(args) > 0 {
		places = cast.ToInt32(args[0])
	}

	return decimal.NewFromFloat(value).Round(places).String()
}

// RoundToFloat 四舍五入保留小数，默认2位
func RoundToFloat(value float64, args ...interface{}) (v float64) {
	var places int32 = 2
	if len(args) > 0 {
		places = cast.ToInt32(args[0])
	}
	v, _ = decimal.NewFromFloat(value).Round(places).Float64()
	return
}

func JSONMethod(content interface{}) map[string]interface{} {
	var name map[string]interface{}
	if marshalContent, err := json.Marshal(content); err != nil {
		logrus.Warnf("JSONMethod Marshal err:%v", err)
	} else {
		d := json.NewDecoder(bytes.NewReader(marshalContent))
		d.UseNumber() // 设置将float64转为一个number
		if err := d.Decode(&name); err != nil {
			fmt.Println(err)
		} else {
			for k, v := range name {
				name[k] = v
			}
		}
	}
	return name
}

func Rmu0000(s string) string {
	str := make([]rune, 0, len(s))
	for _, v := range []rune(s) {
		if v == 0 {
			continue
		}
		str = append(str, v)
	}
	return string(str)
}

// UniqueInt64s 切片去重
func UniqueInt64s(s []int64) []int64 {
	m := make(map[int64]struct{}, 0)
	newS := make([]int64, 0)
	for _, i2 := range s {
		if _, ok := m[i2]; !ok {
			newS = append(newS, i2)
			m[i2] = struct{}{}
		}
	}
	return newS
}

// SpiltInt32BySize 将切片根据指定长度分割成多份
func SpiltInt32BySize(list []int32, size int) (newList [][]int32) {
	lens := len(list)
	mod := math.Ceil(float64(lens) / float64(size))
	spilt := make([][]int32, 0)
	for i := 0; i < int(mod); i++ {
		tmpList := make([]int32, 0, size)
		if i == int(mod)-1 {
			tmpList = list[i*size:]
		} else {
			tmpList = list[i*size : i*size+size]
		}
		spilt = append(spilt, tmpList)
	}
	for _, sp := range spilt {
		newList = append(newList, sp)
	}

	return
}

// SpiltInt64BySize 将切片根据指定长度分割成多份
func SpiltInt64BySize(oldList []int32, size int) (newList [][]int64) {
	var list []int64
	for _, v := range oldList {
		list = append(list, int64(v))
	}

	lens := len(list)
	mod := math.Ceil(float64(lens) / float64(size))
	spilt := make([][]int64, 0)
	for i := 0; i < int(mod); i++ {
		tmpList := make([]int64, 0, size)
		if i == int(mod)-1 {
			tmpList = list[i*size:]
		} else {
			tmpList = list[i*size : i*size+size]
		}
		spilt = append(spilt, tmpList)
	}
	for _, sp := range spilt {
		newList = append(newList, sp)
	}

	return
}

// SpiltInt64BySizeFromInt64 将切片根据指定长度分割成多份
func SpiltInt64BySizeFromInt64(oldList []int64, size int) (newList [][]int64) {
	var list []int64
	for _, v := range oldList {
		list = append(list, v)
	}

	lens := len(list)
	mod := math.Ceil(float64(lens) / float64(size))
	spilt := make([][]int64, 0)
	for i := 0; i < int(mod); i++ {
		tmpList := make([]int64, 0, size)
		if i == int(mod)-1 {
			tmpList = list[i*size:]
		} else {
			tmpList = list[i*size : i*size+size]
		}
		spilt = append(spilt, tmpList)
	}
	for _, sp := range spilt {
		newList = append(newList, sp)
	}

	return
}

// ConvertTimeUnit 转换时间单位
func ConvertTimeUnit(second int64) (newTime string) {
	d := second / (3600 * 24)
	h := (second % (3600 * 24)) / 3600
	m := ((second % (3600 * 24)) % 3600) / 60
	if d > 0 {
		if h == 0 && m == 0 {
			newTime = fmt.Sprintf("%v天", d)
		} else {
			newTime = fmt.Sprintf("%v天%v小时%v分钟", d, h, m)
		}
	} else {
		if h != '0' {
			if m == '0' {
				newTime = fmt.Sprintf("%v小时", h)
			} else {
				newTime = fmt.Sprintf("%v小时%v分钟", h, m)
			}
		} else {
			newTime = fmt.Sprintf("%v分", m)
		}
	}
	return
}

// SplitStringsBySize 将一个大的切片按指定的长度分割成多个小的切片
func SplitStringsBySize(slice []string, chunkSize int) [][]string {
	if chunkSize <= 0 {
		return nil
	}

	var chunks [][]string
	for i := 0; i < len(slice); i += chunkSize {
		end := i + chunkSize
		if end > len(slice) {
			end = len(slice)
		}
		chunks = append(chunks, slice[i:end])
	}
	return chunks
}