package main

import (
	"fmt"
	"os"
	"time"
)

type CollectWindowStruct struct {
	Flag      int      `yaml:"flag"`
	Days      []string `yaml:"days,omitempty"`
	Start     string   `yaml:"start_time"`
	End       string   `yaml:"end_time"`
	StartTime time.Time
	EndTime   time.Time
}

func IsTimeAllowed(currentTime time.Time, startStr, endStr string) bool {
	// 模拟解析数据
	cw := CollectWindowStruct{
		Flag: 1,
		//Days:  []string{},
		Days:  []string{"Sunday"},
		Start: startStr,
		End:   endStr,
	}

	loc := currentTime.Location()
	// 单独解析采集时间
	startTime, err := time.ParseInLocation("15:04", cw.Start, loc)
	if err != nil {
		fmt.Println("云端配置文件解析采集时间【startTime】失败 ", err, "取默认值【00:00】")
		cw.StartTime, _ = time.ParseInLocation("15:04", "00:00", loc)
	}
	cw.StartTime = startTime
	endTime, err := time.ParseInLocation("15:04", cw.End, loc)
	if err != nil {
		fmt.Println("云端配置文件解析采集时间【endTime】失败 ", err, "取默认值【23:59】")
		cw.EndTime, _ = time.ParseInLocation("15:04", "23:59", loc)
	}
	cw.EndTime = endTime
	if len(cw.Days) == 0 {
		// 默认设置为每天
		cw.Days = []string{"Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"}
	}

	// todo 待测逻辑
	if cw.Flag == 0 { // 关闭固定时间段采集, 则都返回true
		fmt.Println("已关闭采集时间段限制")
		return true
	}
	if len(cw.Days) > 0 { // 如果指定了周几
		currentDay := currentTime.Weekday().String()
		fmt.Println("currentDay", currentDay)
		included := false
		for _, day := range cw.Days {
			if day == currentDay {
				fmt.Println("当前时间符合规定的日期要求")
				included = true
				break
			}
		}
		if !included {
			fmt.Println("当前时间不符合规定的日期要求")
			return false
		}
	}

	start := time.Date(currentTime.Year(), currentTime.Month(), currentTime.Day(), cw.StartTime.Hour(), cw.StartTime.Minute(), cw.StartTime.Second(), 0, loc)
	end := time.Date(currentTime.Year(), currentTime.Month(), currentTime.Day(), cw.EndTime.Hour(), cw.EndTime.Minute(), cw.EndTime.Second(), 0, loc)

	fmt.Println("start", start)
	fmt.Println("end", end)

	if start.After(end) { // 如果时段跨天
		end = end.AddDate(0, 0, 1)
		fmt.Println("当前时间设置的时间段跨天,更正end时间", end)
	}
	return !currentTime.Before(start) && currentTime.Before(end)
}

func main() {
	if len(os.Args) == 3 {
		fmt.Println("接收到的参数为:", os.Args[1:])
	} else {
		fmt.Println("参数数量应该为【2】，请输入开始时间和结束时间")
		os.Exit(1)
	}
	startStr := os.Args[1]
	endStr := os.Args[2]
	fmt.Println("输入的开始时间：", startStr)
	fmt.Println("输入的结束时间：", endStr)
	flag := IsTimeAllowed(time.Now(), startStr, endStr)
	if flag {
		fmt.Println("当前时间段符合规定，允许采集")
	} else {
		fmt.Println("当前时间段不符合规定，不允许采集")
	}
}