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10
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1 package bot
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2
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3 import (
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4 "fmt"
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5 "log"
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6 "os"
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7 "time"
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8 )
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9
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10 var quit chan struct{}
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11
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12 func startTimer(seconds int) {
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13 if quit != nil {
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14 close(quit)
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15 }
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16
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17 quit = make(chan struct{})
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18
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19 go func() {
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20 filename := "F:/Media/Twitch/Bot/timer.txt"
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21 file, err := os.Create(filename)
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22
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23 if err != nil {
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24 log.Fatal(err)
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25 }
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26
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27 defer file.Close()
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28 countdown := time.Duration(seconds) * time.Second
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29 ticker := time.NewTicker(time.Second)
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30 defer ticker.Stop()
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31
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32 log.Printf("bot: timer started with duration %d seconds", seconds)
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33
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34 for countdown >= 0 {
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35 select {
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36 case <-ticker.C:
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37 totalSeconds := int(countdown.Seconds())
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38 minutes := totalSeconds / 60
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39 seconds := totalSeconds % 60
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40 countdownMsg := fmt.Sprintf("%02d:%02d", minutes, seconds)
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41
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42 file.Seek(0, 0)
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43 _, err = file.WriteString("")
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44
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45 if err != nil {
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46 log.Fatal(err)
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47 }
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48
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49 _, err = file.WriteString(countdownMsg)
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50
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51 if err != nil {
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52 log.Fatal(err)
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53 }
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54
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55 log.Printf("bot: timer updated to %s", countdownMsg)
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56
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57 countdown -= time.Second
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58 case <-quit:
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59 log.Println("bot: timer stopped")
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60
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61 return
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62 }
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63 }
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64 }()
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65 }
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