// This Source Code Form is subject to the terms of the Mozilla Public

// License, v. 2.0. If a copy of the MPL was not distributed with this

// file, You can obtain one at https://mozilla.org/MPL/2.0/.

use std::error::Error;

use std::fmt;

use std::fmt::Display;

#[derive(Debug)]

pub enum CalendarError {

    InvalidYear,

    InvalidMonth,

    InvalidDay,

    InvalidHour,

    InvalidMinute,

    InvalidSecond,

    InvalidDayOfYear,

    InvalidWeek,

    DivisionByZero,

    OutOfBounds,

    MixedRadixWrongSize,

    MixedRadixZeroBase,

    EncounteredNaN,

    ImpossibleResult,

}

impl Display for CalendarError {

    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {

        match self {

            CalendarError::InvalidYear => write!(f, "Invalid Year"),

            CalendarError::InvalidMonth => write!(f, "Invalid Month"),

            CalendarError::InvalidDay => write!(f, "Invalid Day"),

            CalendarError::InvalidHour => write!(f, "Invalid Hour"),

            CalendarError::InvalidMinute => write!(f, "Invalid Minute"),

            CalendarError::InvalidSecond => write!(f, "Invalid Second"),

            CalendarError::InvalidDayOfYear => write!(f, "Invalid day of year"),

            CalendarError::InvalidWeek => write!(f, "Invalid week"),

            CalendarError::DivisionByZero => write!(f, "Division By Zero"),

            CalendarError::OutOfBounds => write!(f, "Out Of Bounds"),

            CalendarError::MixedRadixWrongSize => write!(f, "Mixed radix slices have wrong size"),

            CalendarError::MixedRadixZeroBase => write!(f, "Mixed radix base contains zero"),

            CalendarError::EncounteredNaN => write!(f, "Encountered Not a Number (NaN)"),

            CalendarError::ImpossibleResult => write!(f, "Impossible result"),

        }

    }

}

impl Error for CalendarError {}