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

use radio_datetime_utils::{DST_ANNOUNCED, DST_PROCESSED, DST_SUMMER};

use msf60_utils::MSFUtils;

// quick and dirty parsing function
fn parse_dst(dst: Option<u8>) -> String {
    if dst.is_none() {
        return String::from("*");
    }
    let mut res = String::from("");
    let s_dst = dst.unwrap();
    if s_dst & DST_ANNOUNCED != 0 {
        res += "announced ";
    }
    if s_dst & DST_PROCESSED != 0 {
        res += "processed ";
    }
    if s_dst & DST_SUMMER != 0 {
        res += "summer";
    }
    res
}

fn str_weekday(day: Option<u8>) -> String {
    String::from(match day {
        Some(0) => "Sunday",
        Some(1) => "Monday",
        Some(2) => "Tuesday",
        Some(3) => "Wednesday",
        Some(4) => "Thursday",
        Some(5) => "Friday",
        Some(6) => "Saturday",
        Some(7) => "?",
        None => "None",
        _ => "<panic>",
    })
}

fn main() {
    let mut msf = MSFUtils::default();

    const MSG: &str = "4 00000000 00000000 0010.0100 0.0100 01.0010 101 10.0000 000.0010 01313330";
    for m in MSG.chars() {
        match m {
            '0' => {
                msf.set_current_bit_a(Some(false));
                msf.set_current_bit_b(Some(false));
            }
            '1' => {
                msf.set_current_bit_a(Some(true));
                msf.set_current_bit_b(Some(false));
            }
            '2' => {
                msf.set_current_bit_a(Some(false));
                msf.set_current_bit_b(Some(true));
            }
            '3' => {
                msf.set_current_bit_a(Some(true));
                msf.set_current_bit_b(Some(true));
            }
            '4' => msf.force_past_new_minute(),
            '_' => {
                msf.set_current_bit_a(None);
                msf.set_current_bit_b(None);
            }
            _ => continue,
            // also skip increasing the second counter, as this character is only syntactic sugar
        }
        // 0111.1110 train seen?
        if msf.end_of_minute_marker_present() {
            msf.decode_time(true, false);
            println!("DUT1={:?}", msf.get_dut1());
            let rdt = msf.get_radio_datetime();
            println!(
                "Parities={:?} {:?} {:?} {:?}",
                msf.get_parity_1(),
                msf.get_parity_2(),
                msf.get_parity_3(),
                msf.get_parity_4()
            );
            println!(
                "Date/time={:?}-{:?}-{:?} {:?}:{:?} {} {}",
                rdt.get_year(),
                rdt.get_month(),
                rdt.get_day(),
                rdt.get_hour(),
                rdt.get_minute(),
                str_weekday(rdt.get_weekday()),
                parse_dst(rdt.get_dst())
            );
            msf.force_new_minute();
        }
        if !msf.increase_second() {
            println!("Bad increase_second at second {}", msf.get_second());
        }
    }
}