package astro

import (
	"fmt"
	"github.com/spf13/cobra"
	"time"
)

var isFormat bool

func init() {
	Cmd.PersistentFlags().Float64Var(&lon, "lon", -273, "经度,WGS84坐标系")
	Cmd.PersistentFlags().Float64Var(&lat, "lat", -273, "纬度,WGS84坐标系")
	Cmd.PersistentFlags().Float64Var(&height, "height", 0, "海拔高度")
	CmdSun.Flags().StringVarP(&nowDay, "now", "n", "", "指定现在的时间")
	CmdSun.Flags().BoolVarP(&isTimestamp, "timestamp", "t", false, "是否为时间戳")
	CmdSun.Flags().BoolVarP(&isLive, "live", "v", false, "是否为实时")
	CmdSun.Flags().BoolVarP(&isFormat, "format", "f", false, "格式化输出")
	CmdSun.Flags().StringVarP(&city, "city", "c", "", "城市名")

	CmdMoon.Flags().StringVarP(&nowDay, "now", "n", "", "指定现在的时间")
	CmdMoon.Flags().BoolVarP(&isTimestamp, "timestamp", "t", false, "是否为时间戳")
	CmdMoon.Flags().BoolVarP(&isLive, "live", "v", false, "是否为实时")
	CmdMoon.Flags().BoolVarP(&isFormat, "format", "f", false, "格式化输出")
	CmdMoon.Flags().StringVarP(&city, "city", "c", "", "城市名")

	CmdStar.Flags().StringVarP(&nowDay, "now", "n", "", "指定现在的时间")
	CmdStar.Flags().BoolVarP(&isTimestamp, "timestamp", "t", false, "是否为时间戳")
	CmdStar.Flags().BoolVarP(&isLive, "live", "v", false, "是否为实时")
	CmdStar.Flags().BoolVarP(&isFormat, "format", "f", false, "格式化输出")
	CmdStar.Flags().StringVarP(&city, "city", "c", "", "城市名")

	Cmd.AddCommand(CmdCal, CmdSun, CmdMoon, CmdStar)
}

var Cmd = &cobra.Command{
	Use:   "astro",
	Short: "天文计算",
}

var CmdSun = &cobra.Command{
	Use:   "sun",
	Short: "太阳计算",
	Run: func(cmd *cobra.Command, args []string) {
		format := 0
		if isFormat {
			format = 1
		}
		isSet := CliLoadLonLatHeight()
		var now = time.Now()
		var err error
		if nowDay != "" {
			now, err = parseDate(now, nowDay, isTimestamp)
			if err != nil {
				fmt.Println(err)
				return
			}
		}
		for {
			if isSet {
				fmt.Printf("经度: %f 纬度: %f 海拔: %f\n", lon, lat, height)
			}
			BasicSun(now, uint8(format))
			if isSet {
				SunDetail(now, lon, lat, height, uint8(format))
			}
			if !isLive {
				break
			}
			time.Sleep(time.Nanosecond*
				time.Duration(1000000000-time.Now().Nanosecond()) + 1)
			if nowDay == "" {
				now = time.Now()
				now = now.Add(time.Duration(now.Nanosecond()*-1) * time.Nanosecond)
			} else {
				now = now.Add(time.Second)
			}
			ClearScreen()
		}
	},
}

var CmdMoon = &cobra.Command{
	Use:   "moon",
	Short: "月亮计算",
	Run: func(cmd *cobra.Command, args []string) {
		format := 0
		if isFormat {
			format = 1
		}
		isSet := CliLoadLonLatHeight()
		var now = time.Now()
		var err error
		if nowDay != "" {
			now, err = parseDate(now, nowDay, isTimestamp)
			if err != nil {
				fmt.Println(err)
				return
			}
		}
		for {
			if isSet {
				fmt.Printf("经度: %f 纬度: %f 海拔: %f\n", lon, lat, height)
			}
			BasicMoon(now, uint8(format))
			if isSet {
				MoonDetail(now, lon, lat, height, uint8(format))
			}
			if !isLive {
				break
			}
			time.Sleep(time.Nanosecond*
				time.Duration(1000000000-time.Now().Nanosecond()) + 1)
			if nowDay == "" {
				now = time.Now()
				now = now.Add(time.Duration(now.Nanosecond()*-1) * time.Nanosecond)
			} else {
				now = now.Add(time.Second)
			}
			ClearScreen()
		}
	},
}

var CmdStar = &cobra.Command{
	Use:   "star",
	Short: "星星计算",
	Run: func(cmd *cobra.Command, args []string) {
		if len(args) == 0 {
			fmt.Println("请输入星星名字")
			return
		}
		format := 0
		if isFormat {
			format = 1
		}
		isSet := CliLoadLonLatHeight()
		var now = time.Now()
		var err error
		if nowDay != "" {
			now, err = parseDate(now, nowDay, isTimestamp)
			if err != nil {
				fmt.Println(err)
				return
			}
		}
		for {
			if isSet {
				fmt.Printf("经度: %f 纬度: %f 海拔: %f\n", lon, lat, height)
			}
			BasicStar(now, args[0], uint8(format))
			if isSet {
				StarDetail(now, args[0], lon, lat, height, uint8(format))
			}
			if !isLive {
				break
			}
			time.Sleep(time.Nanosecond*
				time.Duration(1000000000-time.Now().Nanosecond()) + 1)
			if nowDay == "" {
				now = time.Now()
				now = now.Add(time.Duration(now.Nanosecond()*-1) * time.Nanosecond)
			} else {
				now = now.Add(time.Second)
			}
			ClearScreen()
		}
	},
}

func CliLoadLonLatHeight() bool {
	if city != "" {
		if !GetFromCity(city) {
			fmt.Println("城市名错误")
			return false
		}
		fmt.Println("城市名: ", city)
		SetLonLatHeight(lon, lat, height)
		return true
	}
	tlon, tlat, theight := lon, lat, height
	LoadLonLatHeight()
	if lon == -273 && lon != tlon {
		lon = tlon
	}
	if lat == -273 && lat != tlat {
		lat = tlat
	}
	if height == 0 && height != theight {
		height = theight
	}
	SetLonLatHeight(lon, lat, height)
	if lon == -273 || lat == -273 {
		return false
	}
	return true
}