import Foundation
import PresentationStrings
import TelegramCore

public func compactNumericCountString(_ count: Int, decimalSeparator: String = ".", showDecimalPart: Bool = true) -> String {
    if count >= 1000 * 1000 {
        let remainder = (count % (1000 * 1000)) / (1000 * 100)
        if remainder != 0 && showDecimalPart {
            return "\(count / (1000 * 1000))\(decimalSeparator)\(remainder)M"
        } else {
            return "\(count / (1000 * 1000))M"
        }
    } else if count >= 1000 {
        let remainder = (count % (1000)) / (100)
        if remainder != 0 && showDecimalPart {
            return "\(count / 1000)\(decimalSeparator)\(remainder)K"
        } else {
            return "\(count / 1000)K"
        }
    } else {
        return "\(count)"
    }
}

public func presentationStringsFormattedNumber(_ count: Int32, _ groupingSeparator: String = "") -> String {
    let string = "\(count)"
    if groupingSeparator.isEmpty || abs(count) < 1000 {
        return string
    } else {
        if count < 0 {
            return "-\(presentationStringsFormattedNumber(abs(count), groupingSeparator))"
        } else {
            var groupedString: String = ""
            for i in 0 ..< Int(ceil(Double(string.count) / 3.0)) {
                let index = string.count - Int(i + 1) * 3
                if !groupedString.isEmpty {
                    groupedString = groupingSeparator + groupedString
                }
                groupedString = String(string[string.index(string.startIndex, offsetBy: max(0, index)) ..< string.index(string.startIndex, offsetBy: index + 3)]) + groupedString
            }
            return groupedString
        }
    }
}

public func presentationStringsFormattedNumber(_ starsAmount: StarsAmount, _ groupingSeparator: String = "") -> String {
    if starsAmount.nanos == 0 {
        let count = Int32(starsAmount.value)
        let string = "\(count)"
        if groupingSeparator.isEmpty || abs(count) < 1000 {
            return string
        } else {
            var groupedString: String = ""
            for i in 0 ..< Int(ceil(Double(string.count) / 3.0)) {
                let index = string.count - Int(i + 1) * 3
                if !groupedString.isEmpty {
                    groupedString = groupingSeparator + groupedString
                }
                groupedString = String(string[string.index(string.startIndex, offsetBy: max(0, index)) ..< string.index(string.startIndex, offsetBy: index + 3)]) + groupedString
            }
            return groupedString
        }
    } else {
        return starsAmount.stringValue
    }
}

public func dayIntervalString(strings: PresentationStrings, days: Int32) -> String {
    return strings.MessageTimer_Days(max(0, days))
}

public func hoursIntervalString(strings: PresentationStrings, hours: Int32) -> String {
    return strings.MessageTimer_Hours(max(0, hours))
}

public func minutesIntervalString(strings: PresentationStrings, minutes: Int32) -> String {
    return strings.MessageTimer_Minutes(max(0, minutes))
}

public enum TimeIntervalStringUsage {
    case generic
    case afterTime
    case timer
}

public func timeIntervalString(strings: PresentationStrings, value: Int32, usage: TimeIntervalStringUsage = .generic, preferLowerValue: Bool = false) -> String {
    switch usage {
    case .generic:
        if preferLowerValue {
            if value <= 60 {
                return strings.MessageTimer_Seconds(max(1, value))
            } else if value <= 60 * 60 {
                return strings.MessageTimer_Minutes(max(1, value / 60))
            } else if value <= 60 * 60 * 24 {
                return strings.MessageTimer_Hours(max(1, value / (60 * 60)))
            } else if value <= 60 * 60 * 24 * 7 {
                return strings.MessageTimer_Days(max(1, value / (60 * 60 * 24)))
            } else if value <= 60 * 60 * 24 * 30 {
                return strings.MessageTimer_Weeks(max(1, value / (60 * 60 * 24 * 7)))
            } else if value <= 60 * 60 * 24 * 365 {
                return strings.MessageTimer_Months(max(1, value / (60 * 60 * 24 * 30)))
            } else {
                return strings.MessageTimer_Years(max(1, value / (60 * 60 * 24 * 365)))
            }
        } else {
            if value < 60 {
                return strings.MessageTimer_Seconds(max(1, value))
            } else if value < 60 * 60 {
                return strings.MessageTimer_Minutes(max(1, value / 60))
            } else if value < 60 * 60 * 24 {
                return strings.MessageTimer_Hours(max(1, value / (60 * 60)))
            } else if value < 60 * 60 * 24 * 7 {
                return strings.MessageTimer_Days(max(1, value / (60 * 60 * 24)))
            } else if value < 60 * 60 * 24 * 30 {
                return strings.MessageTimer_Weeks(max(1, value / (60 * 60 * 24 * 7)))
            } else if value < 60 * 60 * 24 * 365 {
                return strings.MessageTimer_Months(max(1, value / (60 * 60 * 24 * 30)))
            } else {
                return strings.MessageTimer_Years(max(1, value / (60 * 60 * 24 * 365)))
            }
        }
    case .afterTime:
        if preferLowerValue {
            if value <= 60 {
                return strings.Time_AfterSeconds(max(1, value))
            } else if value <= 60 * 60 {
                return strings.Time_AfterMinutes(max(1, value / 60))
            } else if value <= 60 * 60 * 24 {
                return strings.Time_AfterHours(max(1, value / (60 * 60)))
            } else if value <= 60 * 60 * 24 * 7 {
                return strings.Time_AfterDays(max(1, value / (60 * 60 * 24)))
            } else if value <= 60 * 60 * 24 * 30 {
                return strings.Time_AfterWeeks(max(1, value / (60 * 60 * 24 * 7)))
            } else if value <= 60 * 60 * 24 * 365 {
                return strings.Time_AfterMonths(max(1, value / (60 * 60 * 24 * 30)))
            } else {
                return strings.Time_AfterYears(max(1, value / (60 * 60 * 24 * 365)))
            }
        } else {
            if value < 60 {
                return strings.Time_AfterSeconds(max(1, value))
            } else if value < 60 * 60 {
                return strings.Time_AfterMinutes(max(1, value / 60))
            } else if value < 60 * 60 * 24 {
                return strings.Time_AfterHours(max(1, value / (60 * 60)))
            } else if value < 60 * 60 * 24 * 7 {
                return strings.Time_AfterDays(max(1, value / (60 * 60 * 24)))
            } else if value < 60 * 60 * 24 * 30 {
                return strings.Time_AfterWeeks(max(1, value / (60 * 60 * 24 * 7)))
            } else if value < 60 * 60 * 24 * 365 {
                return strings.Time_AfterMonths(max(1, value / (60 * 60 * 24 * 30)))
            } else {
                return strings.Time_AfterYears(max(1, value / (60 * 60 * 24 * 365)))
            }
        }
    case .timer:
        if preferLowerValue {
            if value <= 60 {
                return strings.Time_TimerSeconds(max(1, value))
            } else if value <= 60 * 60 {
                return strings.Time_TimerMinutes(max(1, value / 60))
            } else if value <= 60 * 60 * 24 {
                return strings.Time_TimerHours(max(1, value / (60 * 60)))
            } else if value <= 60 * 60 * 24 * 7 {
                return strings.Time_TimerDays(max(1, value / (60 * 60 * 24)))
            } else if value <= 60 * 60 * 24 * 30 {
                return strings.Time_TimerWeeks(max(1, value / (60 * 60 * 24 * 7)))
            } else if value <= 60 * 60 * 24 * 365 {
                return strings.Time_TimerMonths(max(1, value / (60 * 60 * 24 * 30)))
            } else {
                return strings.Time_TimerYears(max(1, value / (60 * 60 * 24 * 365)))
            }
        } else {
            if value < 60 {
                return strings.Time_TimerSeconds(max(1, value))
            } else if value < 60 * 60 {
                return strings.Time_TimerMinutes(max(1, value / 60))
            } else if value < 60 * 60 * 24 {
                return strings.Time_TimerHours(max(1, value / (60 * 60)))
            } else if value < 60 * 60 * 24 * 7 {
                return strings.Time_TimerDays(max(1, value / (60 * 60 * 24)))
            } else if value < 60 * 60 * 24 * 30 {
                return strings.Time_TimerWeeks(max(1, value / (60 * 60 * 24 * 7)))
            } else if value < 60 * 60 * 24 * 365 {
                return strings.Time_TimerMonths(max(1, value / (60 * 60 * 24 * 30)))
            } else {
                return strings.Time_TimerYears(max(1, value / (60 * 60 * 24 * 365)))
            }
        }
    }
}

public func scheduledTimeIntervalString(strings: PresentationStrings, value: Int32, preferLowerValue: Bool = false) -> String {
    if preferLowerValue {
        if value <= 60 {
            return strings.ScheduledIn_Seconds(max(1, value))
        } else if value <= 60 * 60 {
            return strings.ScheduledIn_Minutes(max(1, value / 60))
        } else if value <= 60 * 60 * 24 {
            return strings.ScheduledIn_Hours(max(1, value / (60 * 60)))
        } else if value <= 60 * 60 * 24 * 7 {
            return strings.ScheduledIn_Days(max(1, value / (60 * 60 * 24)))
        } else if value <= 60 * 60 * 24 * 30 {
            return strings.ScheduledIn_Weeks(max(1, value / (60 * 60 * 24 * 7)))
        } else {
            return strings.ScheduledIn_Months(max(1, value / (60 * 60 * 24 * 30)))
        }
    } else {
        if value < 60 {
            return strings.ScheduledIn_Seconds(max(1, value))
        } else if value < 60 * 60 {
            return strings.ScheduledIn_Minutes(max(1, value / 60))
        } else if value < 60 * 60 * 24 {
            return strings.ScheduledIn_Hours(max(1, value / (60 * 60)))
        } else if value < 60 * 60 * 24 * 7 {
            return strings.ScheduledIn_Days(max(1, value / (60 * 60 * 24)))
        } else if value < 60 * 60 * 24 * 30 {
            return strings.ScheduledIn_Weeks(max(1, value / (60 * 60 * 24 * 7)))
        } else {
            return strings.ScheduledIn_Months(max(1, value / (60 * 60 * 24 * 30)))
        }
    }
}

public func shortTimeIntervalString(strings: PresentationStrings, value: Int32, useLargeFormat: Bool = false) -> String {
    if useLargeFormat {
        if value < 60 {
            return strings.MessageTimer_LargeShortSeconds(max(1, value))
        } else if value < 60 * 60 {
            return strings.MessageTimer_LargeShortMinutes(max(1, value / 60))
        } else if value < 60 * 60 * 24 {
            return strings.MessageTimer_LargeShortHours(max(1, value / (60 * 60)))
        } else if value < 60 * 60 * 24 * 7 {
            return strings.MessageTimer_LargeShortDays(max(1, value / (60 * 60 * 24)))
        } else if value < 60 * 60 * 24 * 31 {
            return strings.MessageTimer_LargeShortWeeks(max(1, value / (60 * 60 * 24 * 7)))
        } else if value < 60 * 60 * 24 * 365 {
            return strings.MessageTimer_LargeShortMonths(max(1, value / (60 * 60 * 24 * 30)))
        } else {
            return strings.MessageTimer_LargeShortYears(max(1, value / (60 * 60 * 24 * 365)))
        }
    } else {
        if value < 60 {
            return strings.MessageTimer_ShortSeconds(max(1, value))
        } else if value < 60 * 60 {
            return strings.MessageTimer_ShortMinutes(max(1, value / 60))
        } else if value < 60 * 60 * 24 {
            return strings.MessageTimer_ShortHours(max(1, value / (60 * 60)))
        } else if value < 60 * 60 * 24 * 7 {
            return strings.MessageTimer_ShortDays(max(1, value / (60 * 60 * 24)))
        } else if value < 60 * 60 * 24 * 31 {
            return strings.MessageTimer_ShortWeeks(max(1, value / (60 * 60 * 24 * 7)))
        } else if value < 60 * 60 * 24 * 365 {
            return strings.MessageTimer_ShortMonths(max(1, value / (60 * 60 * 24 * 30)))
        } else {
            return strings.MessageTimer_ShortYears(max(1, value / (60 * 60 * 24 * 365)))
        }
    }
}

public func muteForIntervalString(strings: PresentationStrings, value: Int32) -> String {
    if value < 60 * 60 {
        return strings.MuteFor_Minutes(max(1, value / (60)))
    } else if value < 60 * 60 * 24 {
        return strings.MuteFor_Hours(max(1, value / (60 * 60)))
    } else {
        return strings.MuteFor_Days(max(1, value / (60 * 60 * 24)))
    }
}

public func setTimeoutForIntervalString(strings: PresentationStrings, value: Int32) -> String {
    if value < 60 * 60 {
        return strings.SetTimeoutFor_Minutes(max(1, value / (60)))
    } else if value < 60 * 60 * 24 {
        return strings.SetTimeoutFor_Hours(max(1, value / (60 * 60)))
    } else {
        return strings.SetTimeoutFor_Days(max(1, value / (60 * 60 * 24)))
    }
}

public func mutedForTimeIntervalString(strings: PresentationStrings, value: Int32) -> String {
    if value < 60 * 60 {
        return strings.MutedForTime_Minutes(max(1, value / (60)))
    } else if value < 60 * 60 * 24 {
        return strings.MutedForTime_Hours(max(1, value / (60 * 60)))
    } else {
        return strings.MutedForTime_Days(max(1, value / (60 * 60 * 24)))
    }
}

public func unmuteIntervalString(strings: PresentationStrings, value: Int32) -> String {
    if value < 60 * 60 {
        return strings.MuteExpires_Minutes(max(1, value / 60))
    } else if value < 60 * 60 * 24 {
        return strings.MuteExpires_Hours(max(1, value / (60 * 60)))
    } else {
        return strings.MuteExpires_Days(max(1, value / (60 * 60 * 24)))
    }
}

public func callDurationString(strings: PresentationStrings, value: Int32) -> String {
    if value < 60 {
        return strings.Call_Seconds(max(1, value))
    } else if value < 60 * 60 {
        return strings.Call_Minutes(max(1, value / 60))
    } else if value < 60 * 60 * 24 {
        return strings.Call_Hours(max(1, value / (60 * 60)))
    } else {
        return strings.Call_Days(max(1, value / (60 * 60 * 24)))
    }
}