imag-timetrack 0.10.1

Part of the imag core distribution: imag-timetrack command
Documentation 
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//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2020 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 std::str::FromStr;

use filters::filter::Filter;
use chrono::NaiveDateTime;
use failure::Error;
use failure::Fallible as Result;
use resiter::AndThen;
use resiter::Filter as RFilter;

use libimagstore::store::FileLockEntry;
use libimagtimetrack::store::TimeTrackStore;
use libimagtimetrack::tag::TimeTrackingTag;
use libimagtimetrack::iter::filter::*;
use libimagtimetrack::timetracking::TimeTracking;

use libimagrt::runtime::Runtime;

pub fn month(rt: &Runtime) -> Result<()> {
    let cmd = rt.cli().subcommand().1.unwrap(); // checked in main

    let filter = {
        use chrono::offset::Local;
        use chrono::naive::NaiveDate;
        use chrono::Datelike;

        let now = Local::now();

        let start = match cmd.value_of("start").map(::chrono::naive::NaiveDateTime::from_str) {
            None    => NaiveDate::from_ymd(now.year(), now.month(), 1).and_hms(0, 0, 0),
            Some(s) => s?,
        };

        let end = match cmd.value_of("end").map(::chrono::naive::NaiveDateTime::from_str) {
            None => {

                // Is it much harder to go to the last second of the current month than to the first
                // second of the next month, right?
                let (year, month)  = if now.month() == 12 {
                    (now.year() + 1, 1)
                } else {
                    (now.year(), now.month() + 1)
                };

                NaiveDate::from_ymd(year, month, 1).and_hms(0, 0, 0)
            },
            Some(s) => s?,
        };

        let tags = cmd
            .values_of("tags")
            .map(|ts| ts.map(String::from).map(TimeTrackingTag::from).collect::<Vec<_>>());

        let start_time_filter = has_start_time_where(move |dt: &NaiveDateTime| {
            start <= *dt
        });

        let end_time_filter = has_end_time_where(move |dt: &NaiveDateTime| {
            end >= *dt
        });

        let tags_filter = move |fle: &FileLockEntry| {
            match tags {
                Some(ref tags) => has_one_of_tags(&tags).filter(fle),
                None => true,
            }
        };

        tags_filter.and(start_time_filter).and(end_time_filter)
    };

    rt.store()
        .get_timetrackings()?
        .filter_ok(|e| filter.filter(e))
        .and_then_ok(|e| -> Result<_> {
            debug!("Processing {:?}", e.get_location());

            let tag   = e.get_timetrack_tag()?;
            debug!(" -> tag = {:?}", tag);

            let start = e.get_start_datetime()?;
            debug!(" -> start = {:?}", start);

            let end   = e.get_end_datetime()?;
            debug!(" -> end = {:?}", end);

            rt.report_touched(e.get_location())
                .map_err(Error::from)
                .map(|_| (tag, start, end))
        })
        .and_then_ok(|(tag, start, end)| {
            match (start, end) {
                (None, _)          => writeln!(rt.stdout(), "{} has no start time.", tag),
                (Some(s), None)    => writeln!(rt.stdout(), "{} | {} - ...", tag, s),
                (Some(s), Some(e)) => writeln!(rt.stdout(), "{} | {} - {}", tag, s, e),
            }.map_err(Error::from)
        })
        .collect::<Result<Vec<_>>>()
        .map(|_| ())
}