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package timeago |
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import ( |
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"fmt" |
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"log" |
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"math" |
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"path" |
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"runtime" |
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"strconv" |
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"strings" |
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"time" |
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"github.com/SerhiiCho/timeago/models" |
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"github.com/SerhiiCho/timeago/utils" |
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) |
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var cachedJsonResults = map[string]models.Lang{} |
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// Take coverts given datetime into `x time ago` format. |
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// For displaying `Online` word if date interval within |
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// 60 seconds, add `|online` flag to the datetime string. |
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// Format must be [year-month-day hours:minutes:seconds} |
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func Take(datetime string) string { |
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option, hasOption := getOption(&datetime) |
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loc, _ := time.LoadLocation(location) |
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parsedTime, _ := time.ParseInLocation("2006-01-02 15:04:05", datetime, loc) |
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seconds := int(time.Now().In(loc).Sub(parsedTime).Seconds()) |
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switch { |
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case seconds < 60 && option == "online": |
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return trans().Online |
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case seconds < 0: |
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return getWords("seconds", 0) |
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} |
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return calculateTheResult(seconds, hasOption, option) |
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} |
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func calculateTheResult(seconds int, hasOption bool, option string) string { |
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minutes, hours, days, weeks, months, years := getTimeCalculations(float64(seconds)) |
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switch { |
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case hasOption && option == "online" && seconds < 60: |
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return trans().Online |
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case seconds < 60: |
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return getWords("seconds", seconds) |
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case minutes < 60: |
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return getWords("minutes", minutes) |
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case hours < 24: |
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return getWords("hours", hours) |
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case days < 7: |
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return getWords("days", days) |
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case weeks < 4: |
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return getWords("weeks", weeks) |
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case months < 12: |
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if months == 0 { |
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months = 1 |
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} |
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return getWords("months", months) |
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} |
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return getWords("years", years) |
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} |
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func getTimeCalculations(seconds float64) (int, int, int, int, int, int) { |
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minutes := math.Round(seconds / 60) |
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hours := math.Round(seconds / 3600) |
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days := math.Round(seconds / 86400) |
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weeks := math.Round(seconds / 604800) |
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months := math.Round(seconds / 2629440) |
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years := math.Round(seconds / 31553280) |
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return int(minutes), int(hours), int(days), int(weeks), int(months), int(years) |
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} |
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// get the last number of a given integer |
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func getLastNumber(num int) int { |
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1 |
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numStr := strconv.Itoa(num) |
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1 |
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result, _ := strconv.Atoi(numStr[len(numStr)-1:]) |
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return result |
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} |
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// getWords decides rather the word must be singular or plural, |
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// and depending on the result it adds the correct word after |
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// the time number |
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func getWords(timeKind string, num int) string { |
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1 |
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form := getLanguageForm(num) |
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1 |
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time := getTimeTranslations() |
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translation := time[timeKind][form] |
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return strconv.Itoa(num) + " " + translation + " " + trans().Ago |
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} |
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// getOption check if datetime has option with time, |
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// if yes, it will return this option and remove it |
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// from datetime |
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func getOption(datetime *string) (string, bool) { |
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date := *datetime |
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spittedDateString := strings.Split(date, "|") |
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if len(spittedDateString) > 1 { |
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*datetime = spittedDateString[0] |
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return spittedDateString[1], true |
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} |
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return "", false |
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} |
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func trans() models.Lang { |
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_, filename, _, ok := runtime.Caller(0) |
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if !ok { |
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panic("No caller information") |
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} |
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rootPath := path.Dir(filename) |
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filePath := fmt.Sprintf(rootPath+"/langs/%s.json", language) |
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if cachedResult, ok := cachedJsonResults[filePath]; ok { |
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return cachedResult |
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} |
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1 |
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thereIsFile, err := utils.FileExists(filePath) |
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1 |
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if !thereIsFile { |
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log.Fatalf("File with the path: %s, doesn't exist", filePath) |
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} |
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if err != nil { |
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log.Fatalf("Error while trying to read file %s. Error: %v", filePath, err) |
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} |
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1 |
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parseResult := parseNeededFile(filePath) |
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cachedJsonResults[filePath] = parseResult |
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return parseResult |
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} |
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SerhiiCho /
timeago
