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//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015, 2016 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
//
//! Event types
//!
//! This module contains types that represent events. These types (which wrap FileLockEntries from
//! the Store) represent Events, thus they have functionality for settings the start and end-time,
//! getting the start and end time and also deleting start and end time.
//!
use chrono::naive::NaiveDateTime;
use libimagstore::store::Entry;
use libimagerror::into::IntoError;
use tag::TimeTrackingTag as TTT;
use error::TimeTrackErrorKind as TTEK;
use error::MapErrInto;
use result::Result;
use constants::*;
use toml::Value;
use toml_query::delete::TomlValueDeleteExt;
use toml_query::insert::TomlValueInsertExt;
use toml_query::read::TomlValueReadExt;
pub trait TimeTracking {
fn get_timetrack_tag(&self) -> Result<TTT>;
fn set_start_datetime(&mut self, dt: NaiveDateTime) -> Result<()>;
fn get_start_datetime(&self) -> Result<Option<NaiveDateTime>>;
fn delete_start_datetime(&mut self) -> Result<()>;
fn set_end_datetime(&mut self, dt: NaiveDateTime) -> Result<()>;
fn get_end_datetime(&self) -> Result<Option<NaiveDateTime>>;
fn delete_end_datetime(&mut self) -> Result<()>;
fn valid(&self) -> Result<bool>;
}
impl TimeTracking for Entry {
fn get_timetrack_tag(&self) -> Result<TTT> {
self.get_header()
.read(DATE_TIME_TAG_HEADER_PATH)
.map_err_into(TTEK::HeaderReadError)
.map(|value| match value {
Some(&Value::String(ref s)) => s.clone().into(),
_ => unimplemented!(),
})
}
fn set_start_datetime(&mut self, dt: NaiveDateTime) -> Result<()> {
let s = dt.format(DATE_TIME_FORMAT).to_string();
self.get_header_mut()
.insert(DATE_TIME_START_HEADER_PATH, Value::String(s))
.map_err_into(TTEK::HeaderWriteError)
.map(|_| ())
}
fn get_start_datetime(&self) -> Result<Option<NaiveDateTime>> {
self.get_header()
.read(DATE_TIME_START_HEADER_PATH)
.map_err_into(TTEK::HeaderReadError)
.and_then(header_value_to_dt)
}
fn delete_start_datetime(&mut self) -> Result<()> {
self.get_header_mut()
.delete(DATE_TIME_START_HEADER_PATH)
.map_err_into(TTEK::HeaderWriteError)
.map(|_| ())
}
fn set_end_datetime(&mut self, dt: NaiveDateTime) -> Result<()> {
let s = dt.format(DATE_TIME_FORMAT).to_string();
self.get_header_mut()
.insert(DATE_TIME_END_HEADER_PATH, Value::String(s))
.map_err_into(TTEK::HeaderWriteError)
.map(|_| ())
}
fn get_end_datetime(&self) -> Result<Option<NaiveDateTime>> {
self.get_header()
.read(DATE_TIME_END_HEADER_PATH)
.map_err_into(TTEK::HeaderReadError)
.and_then(header_value_to_dt)
}
fn delete_end_datetime(&mut self) -> Result<()> {
self.get_header_mut()
.delete(DATE_TIME_END_HEADER_PATH)
.map_err_into(TTEK::HeaderWriteError)
.map(|_| ())
}
/// Check whether the Event is valid
///
/// That is:
///
/// * The end date is after the start date (or not set)
///
/// # Return values
///
/// Ok(true) if Event is valid
/// Ok(false) if Event is invalid
/// Err(e) if checking validity failed
///
fn valid(&self) -> Result<bool> {
self.get_start_datetime().and_then(|st| self.get_end_datetime().map(|et| st <= et))
}
}
fn header_value_to_dt(val: Option<&Value>) -> Result<Option<NaiveDateTime>> {
match val {
Some(&Value::String(ref s)) => {
NaiveDateTime::parse_from_str(s, DATE_TIME_FORMAT)
.map_err_into(TTEK::DateTimeParserError)
.map(Some)
},
Some(_) => Err(TTEK::HeaderFieldTypeError.into_error()),
None => Ok(None),
}
}
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