// icaltool - a tool to get information out of ical/ics files.
// Copyright (C) 2018  Harald Eilertsen <haraldei@anduin.net>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

use ical;
use std::fs::File;
use std::io::BufReader;

#[derive(Default)]
struct Event {
    start: String,
    end: String,
    summary: String,
}

fn main() {
    let buf = BufReader::new(File::open("test.ics").unwrap());
    let calendars: Vec<_> = ical::IcalParser::new(buf)
        .filter_map(|c| c.ok())
        .collect();
    println!("Found {} calendard in file...", calendars.len());

    for c in calendars {
        for e in c.events {
            let mut ev = Event::default();

            for p in e.properties {
                match p.name.as_ref() {
                    "DTSTART" => ev.start = p.value.unwrap_or("".to_string()),
                    "DTEND"   => ev.end = p.value.unwrap_or("".to_string()),
                    "SUMMARY" => ev.summary = p.value.unwrap_or("".to_string()),
                    _ => (),
                }
            }

            println!("---> {} - {}: {}", ev.start, ev.end, ev.summary);
        }
    }
}