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package format |
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import ( |
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"fmt" |
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"math" |
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"strings" |
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"time" |
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) |
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func humanDuration(d time.Duration) string { |
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seconds := int(d.Seconds()) |
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switch { |
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case seconds < 1: |
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return "Less than a second" |
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case seconds == 1: |
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return "1 second" |
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case seconds < 60: |
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return fmt.Sprintf("%d seconds", seconds) |
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} |
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minutes := int(d.Minutes()) |
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switch { |
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case minutes == 1: |
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return "About a minute" |
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case minutes < 60: |
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return fmt.Sprintf("%d minutes", minutes) |
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} |
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hours := int(math.Round(d.Hours())) |
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switch { |
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case hours == 1: |
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return "About an hour" |
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case hours < 48: |
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return fmt.Sprintf("%d hours", hours) |
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case hours < 24*7*2: |
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return fmt.Sprintf("%d days", hours/24) |
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case hours < 24*30*2: |
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return fmt.Sprintf("%d weeks", hours/24/7) |
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case hours < 24*365*2: |
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return fmt.Sprintf("%d months", hours/24/30) |
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} |
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return fmt.Sprintf("%d years", int(d.Hours())/24/365) |
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} |
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func HumanTime(t time.Time, zeroValue string) string { |
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return humanTime(t, zeroValue) |
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} |
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func HumanTimeLower(t time.Time, zeroValue string) string { |
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return strings.ToLower(humanTime(t, zeroValue)) |
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} |
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func humanTime(t time.Time, zeroValue string) string { |
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if t.IsZero() { |
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return zeroValue |
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} |
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delta := time.Since(t) |
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if int(delta.Hours())/24/365 < -20 { |
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return "Forever" |
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} else if delta < 0 { |
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return humanDuration(-delta) + " from now" |
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} |
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return humanDuration(delta) + " ago" |
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} |
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