//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2018 Matthias Beyer <mail@beyermatthias.de> and contributors
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; version
// 2.1 of the License.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//

use std::io::Write;

use libimagdiary::diary::Diary;
use libimagrt::runtime::Runtime;
use libimagutil::warn_exit::warn_exit;
use libimagerror::trace::MapErrTrace;
use libimagerror::io::ToExitCode;
use libimagerror::exit::ExitUnwrap;
use libimagutil::debug_result::*;

use util::get_diary_name;

pub fn list(rt: &Runtime) {
    let diaryname = get_diary_name(rt)
        .unwrap_or_else(|| warn_exit("No diary selected. Use either the configuration file or the commandline option", 1));

    let mut out = ::std::io::stdout();

    Diary::entries(rt.store(), &diaryname)
        .map_dbg_str("Ok")
        .map_err_trace_exit_unwrap(1)
        .filter_map(|entry| {
            entry
                .map_dbg(|e| format!("Filtering: {:?}", e))
                .map_err_trace() // error tracing here
                .ok() // so we can ignore errors here
        })
        .for_each(|e| {
            writeln!(out, "{}", e
                    .get_location()
                    .clone()
                    .without_base()
                    .to_str()
                    .map_err_trace()
                    .unwrap_or(String::from("<<Path Parsing Error>>")))
                .to_exit_code()
                .unwrap_or_exit();
        })
}