104 lines
2.7 KiB
Go
104 lines
2.7 KiB
Go
package remind
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import (
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"fmt"
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"strings"
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"time"
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"unicode"
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)
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func formatWhen(timestamp time.Time, loc *time.Location) string {
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day := "più tardi"
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_, todaym, todayd := time.Now().Date()
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_, targetm, targetd := timestamp.Date()
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if todaym != targetm || todayd != targetd {
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day = "il " + timestamp.In(loc).Format("2/1")
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}
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return fmt.Sprintf("%s alle %s", day, timestamp.In(loc).Format("15:04:05"))
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}
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func isSscanfValid(n int, err error) bool {
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return err == nil
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}
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func scanMixedDelay(str string) (bool, time.Time, error) {
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remaining := str
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now := time.Now()
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num := 0
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sep := ' '
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for len(remaining) > 1 {
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_, err := fmt.Sscanf(remaining, "%d%c", &num, &sep)
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if err != nil {
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return false, now, err
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}
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dur := time.Duration(num)
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switch unicode.ToLower(sep) {
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case 's':
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dur *= time.Second
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case 'm':
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dur *= time.Minute
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case 'h':
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dur *= time.Hour
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case 'd':
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dur *= time.Hour * 24
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default:
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return true, now, fmt.Errorf("La durata ha una unità che non conosco, usa una di queste: s (secondi) m (minuti) h (ore) d (giorni)")
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}
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now = now.Add(dur)
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nextIndex := strings.IndexRune(remaining, sep)
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remaining = remaining[nextIndex+1:]
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}
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fmt.Printf("tot: %s", now.Sub(time.Now()))
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return true, now, nil
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}
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func parseDuration(date string, loc *time.Location) (time.Time, error) {
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now := time.Now().In(loc)
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hour := now.Hour()
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min := now.Minute()
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sec := now.Second()
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day := now.Day()
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month := now.Month()
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year := now.Year()
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dayunspecified := false
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isDurationFmt, duration, err := scanMixedDelay(date)
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switch {
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case isSscanfValid(fmt.Sscanf(date, "%d/%d/%d-%d:%d:%d", &day, &month, &year, &hour, &min, &sec)):
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case isSscanfValid(fmt.Sscanf(date, "%d/%d/%d-%d:%d", &day, &month, &year, &hour, &min)):
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sec = 0
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case isSscanfValid(fmt.Sscanf(date, "%d/%d/%d", &day, &month, &year)):
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hour = now.Hour()
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min = now.Minute()
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sec = now.Second()
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case isSscanfValid(fmt.Sscanf(date, "%d:%d:%d", &hour, &min, &sec)):
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day = now.Day()
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month = now.Month()
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year = now.Year()
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dayunspecified = true
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case isSscanfValid(fmt.Sscanf(date, "%d:%d", &hour, &min)):
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day = now.Day()
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month = now.Month()
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year = now.Year()
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sec = 0
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dayunspecified = true
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case isDurationFmt:
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return duration, err
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default:
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return now, fmt.Errorf("Non capisco quando dovrei ricordartelo!")
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}
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targetDate := time.Date(year, month, day, hour, min, sec, 0, loc)
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if targetDate.Before(now) {
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// If day was not specified assume tomorrow
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if dayunspecified {
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targetDate = targetDate.Add(time.Hour * 24)
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} else {
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return now, fmt.Errorf("Non posso ricordarti cose nel passato!")
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}
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}
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if targetDate.After(now.Add(reminderMaxDuration)) {
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return now, fmt.Errorf("Non credo riuscirei a ricordarmi qualcosa per così tanto")
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}
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return targetDate, nil
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}
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