// SPDX-License-Identifier: MIT OR Apache-2.0
// Copyright 2024 René Ladan <rene0+codeberg@freedom.nl>

use radio_datetime_utils::RadioDateTimeUtils;

fn main() {
    let mut dcf77 = RadioDateTimeUtils::new(7);

    // set date of now, leave out extra checks, do not compare to previous non-existing value:

    // day must be set *after* year, month, and weekday because set_day() checks if its argument
    // is within the current month which could be 28 or 29 for February depending on the year and
    // day-of-week for 00 years.

    dcf77.set_year(Some(24), true, false);
    // year is clipped to century
    dcf77.set_month(Some(1), true, false);
    dcf77.set_day(Some(25), true, false);
    println!("Day-of-month: {:?}", dcf77.get_day());
    dcf77.set_weekday(Some(4), true, false);
    dcf77.set_day(Some(25), true, false);
    dcf77.set_hour(Some(22), true, false);
    dcf77.set_minute(Some(34), true, false);
    // seconds are not present in RadioDateTimeUtils

    // Show the date and time:
    println!(
        "Initial: date={:?}-{:?}-{:?} weekday={:?} time={:?}:{:?} jumped={}",
        dcf77.get_year(),
        dcf77.get_month(),
        dcf77.get_day(),
        dcf77.get_weekday(),
        dcf77.get_hour(),
        dcf77.get_minute(),
        dcf77.get_jump_minute()
    );

    // Going to the next minute without telling radio_datetime_utils about it
    // causes it to think the minute jumped:
    dcf77.set_minute(Some(35), true, true);
    println!(
        "Minute={:?}, jumped={}",
        dcf77.get_minute(),
        dcf77.get_jump_minute()
    );
    // Advance the time by one minute and show new (predicted) datetime:
    // add_minute() wants DST to be defined and leaves jump values untouched
    dcf77.set_dst(Some(false), Some(false), false);
    println!("add_minute()={}", dcf77.add_minute());
    println!(
        "After add_minute(): date={:?}-{:?}-{:?} weekday={:?} time={:?}:{:?} jumped={}",
        dcf77.get_year(),
        dcf77.get_month(),
        dcf77.get_day(),
        dcf77.get_weekday(),
        dcf77.get_hour(),
        dcf77.get_minute(),
        dcf77.get_jump_minute()
    );

    // "Formally" set the minute:
    dcf77.set_minute(Some(36), true, true);
    println!(
        "Minute={:?}, jumped={}",
        dcf77.get_minute(),
        dcf77.get_jump_minute()
    );

    // Setting an illegal value leaves it untouched:
    dcf77.set_month(Some(14), true, false);
    println!("Month={:?}", dcf77.get_month());
    dcf77.set_year(None, true, false);
    println!("Year={:?}", dcf77.get_year());

    // New century
    let mut npl = RadioDateTimeUtils::new(0);
    npl.set_year(Some(99), true, false);
    npl.set_month(Some(12), true, false);
    npl.set_weekday(Some(5), true, false); // Friday
    npl.set_day(Some(31), true, false);
    npl.set_hour(Some(23), true, false);
    npl.set_minute(Some(59), true, false);
    println!(
        "Old century: date={:?}-{:?}-{:?} weekday={:?} time={:?}-{:?} {:?}",
        npl.get_year(),
        npl.get_month(),
        npl.get_day(),
        npl.get_weekday(),
        npl.get_hour(),
        npl.get_minute(),
        npl.get_dst()
    );

    // add_minute() wants DST to be defined.
    // announcements are honored because we omit calling bump_minutes_running() here
    npl.set_dst(Some(false), Some(true), false);
    println!("add_minute()={}", npl.add_minute());
    npl.set_dst(Some(true), Some(true), false);
    println!(
        "New century: date={:?}-{:?}-{:?} weekday={:?} time={:?}-{:?} {:?}",
        npl.get_year(),
        npl.get_month(),
        npl.get_day(),
        npl.get_weekday(),
        npl.get_hour(),
        npl.get_minute(),
        npl.get_dst()
    );
}