Created
February 3, 2022 18:23
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schedule -s | go run cc_schedule.go > schedule_me.ics
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package main | |
import ( | |
"bufio" | |
"bytes" | |
"fmt" | |
"os" | |
"regexp" | |
"strings" | |
"text/template" | |
"time" | |
) | |
type CalendarEvent struct { | |
StartDt string | |
EndDt string | |
} | |
var dateRegex = regexp.MustCompile(`(\d\d)/(\d\d) \(.\)`) | |
var timeRegex = regexp.MustCompile(`(\d\d:\d\d)-(\d\d:\d\d)`) | |
func main() { | |
scanner := bufio.NewScanner(os.Stdin) | |
schedules := []CalendarEvent{} | |
previousLine := "" | |
calDate := "" | |
scheduleEvent := CalendarEvent{} | |
for scanner.Scan() { | |
currentLine := strings.Trim(scanner.Text(), " ") | |
currentLineMatch := timeRegex.FindStringSubmatch(currentLine) | |
previousLineMatch := timeRegex.FindStringSubmatch(previousLine) | |
if dateRegex.MatchString(currentLine) { | |
if scheduleEvent.EndDt != "" { | |
schedules = append(schedules, scheduleEvent) | |
} | |
calDate = getCalDate(currentLine) | |
scheduleEvent = CalendarEvent{ | |
StartDt: calDate + getCalTime(currentLineMatch[1]), | |
EndDt: calDate + getCalTime(currentLineMatch[2]), | |
} | |
} else if timeRegex.MatchString(currentLine) { | |
if currentLineMatch[1] != previousLineMatch[2] { | |
schedules = append(schedules, scheduleEvent) | |
scheduleEvent = CalendarEvent{ | |
StartDt: calDate + getCalTime(currentLineMatch[1]), | |
EndDt: calDate + getCalTime(currentLineMatch[2]), | |
} | |
} | |
scheduleEvent.EndDt = calDate + getCalTime(currentLineMatch[2]) | |
} | |
previousLine = currentLine | |
} | |
schedules = append(schedules, scheduleEvent) | |
fmt.Println(generateICSOutput(schedules)) | |
} | |
func getCalDate(line string) string { | |
currentDate := time.Now() | |
if dateRegex.MatchString(line) { | |
match := dateRegex.FindStringSubmatch(line) | |
calYear := currentDate.Year() | |
if match[1] == "01" && currentDate.Month() == 12 { | |
calYear += 1 | |
} | |
return fmt.Sprintf("%d%s%sT", calYear, match[1], match[2]) | |
} | |
return "" | |
} | |
func getCalTime(timeStr string) string { | |
return strings.ReplaceAll(timeStr, ":", "") + "00" | |
} | |
func generateICSOutput(events []CalendarEvent) string { | |
icsTemplateString := | |
`BEGIN:VCALENDAR | |
CALSCALE:GREGORIAN | |
METHOD:PUBLISH | |
PRODID:-//Test Cal//EN | |
VERSION:2.0 | |
{{ range $index, $event := . }}BEGIN:VEVENT | |
UID:{{$index}} | |
DTSTART;VALUE=DATE:{{$event.StartDt}} | |
DTEND;VALUE=DATE:{{$event.EndDt}} | |
SUMMARY:值班 | |
END:VEVENT | |
{{ end }}END:VCALENDAR` | |
icsTemplate, _ := template.New("ics"). | |
Parse(icsTemplateString) | |
var result bytes.Buffer | |
icsTemplate.Execute(&result, events) | |
return result.String() | |
} |
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