// 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 crate::calendar::CalendarMoment;

use crate::display::private::DisplayItem;

use crate::display::private::DisplayOptions;

use crate::display::private::NumericContent;

use crate::display::private::TextContent;

use crate::display::Language;

use crate::display::PresetDisplay;

use crate::display::HHMMSS_COLON;

use std::fmt;

use crate::clock::ClockTime;

pub trait DisplayMomentItem {}

impl<T: DisplayItem + Clone + DisplayMomentItem> DisplayItem for CalendarMoment<T> {

    fn supported_lang(lang: Language) -> bool {

        T::supported_lang(lang) && ClockTime::supported_lang(lang)

    }

    fn fmt_numeric(&self, n: NumericContent, opt: DisplayOptions) -> String {

        match n {

            NumericContent::Hour1to12

            | NumericContent::Hour0to23

            | NumericContent::Minute

            | NumericContent::Second => self.clone().time_of_day().fmt_numeric(n, opt),

            _ => self.clone().date().fmt_numeric(n, opt),

        }

    }

    fn fmt_text(&self, t: TextContent, lang: Language, opt: DisplayOptions) -> String {

        match t {

            TextContent::HalfDayName | TextContent::HalfDayAbbrev => {

                self.clone().time_of_day().fmt_text(t, lang, opt)

            }

            _ => self.clone().date().fmt_text(t, lang, opt),

        }

    }

}

impl<T: PresetDisplay + Clone + DisplayMomentItem> PresetDisplay for CalendarMoment<T> {

    fn long_date(&self) -> String {

        self.clone().date().long_date()

    }

    fn short_date(&self) -> String {

        self.clone().date().short_date()

    }

}

impl<T: fmt::Display + PresetDisplay + Clone + DisplayMomentItem> fmt::Display

    for CalendarMoment<T>

{

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

        write!(f, "{} ", self.preset_str(Language::EN, HHMMSS_COLON));

        self.clone().date().fmt(f)

    }

}