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//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2019 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 libimagentryutil::isa::Is;
use libimagentryutil::isa::IsKindHeaderPathProvider;
use libimagstore::store::Entry;
use libimagutil::date::datetime_from_string;
use failure::Fallible as Result;
use failure::Error;
use failure::ResultExt;
use chrono::NaiveDateTime;
use toml_query::read::Partial;
use toml_query::read::TomlValueReadExt;
use toml_query::insert::TomlValueInsertExt;
use uuid::Uuid;
use crate::status::Status;
use crate::priority::Priority;
#[derive(Serialize, Deserialize, Debug)]
pub(crate) struct TodoHeader {
pub(crate) uuid: Uuid,
pub(crate) status: Status,
pub(crate) scheduled: Option<String>,
pub(crate) hidden: Option<String>,
pub(crate) due: Option<String>,
pub(crate) priority: Option<Priority>,
}
impl<'a> Partial<'a> for TodoHeader {
const LOCATION: &'static str = "todo";
type Output = Self;
}
pub trait Todo {
fn is_todo(&self) -> Result<bool>;
fn get_uuid(&self) -> Result<Uuid>;
fn get_status(&self) -> Result<Status>;
fn set_status(&mut self, status: Status) -> Result<()>;
fn get_scheduled(&self) -> Result<Option<NaiveDateTime>>;
fn set_scheduled(&mut self, scheduled: NaiveDateTime) -> Result<()>;
fn get_hidden(&self) -> Result<Option<NaiveDateTime>>;
fn set_hidden(&mut self, hidden: NaiveDateTime) -> Result<()>;
fn get_due(&self) -> Result<Option<NaiveDateTime>>;
fn set_due(&mut self, due: NaiveDateTime) -> Result<()>;
fn get_priority(&self) -> Result<Option<Priority>>;
fn set_priority(&mut self, prio: Priority) -> Result<()>;
}
provide_kindflag_path!(pub IsTodo, "todo.is_todo");
impl Todo for Entry {
fn is_todo(&self) -> Result<bool> {
self.is::<IsTodo>().context("Cannot check whether Entry is a todo").map_err(From::from)
}
fn get_uuid(&self) -> Result<Uuid> {
get_header(self).map(|hdr| hdr.uuid)
}
fn get_status(&self) -> Result<Status> {
get_header(self).map(|hdr| hdr.status)
}
fn set_status(&mut self, status: Status) -> Result<()> {
self.get_header_mut().insert_serialized("todo.status", status)?;
Ok(())
}
fn get_scheduled(&self) -> Result<Option<NaiveDateTime>> {
get_optional_ndt(self, |hdr| hdr.scheduled)
}
fn set_scheduled(&mut self, scheduled: NaiveDateTime) -> Result<()> {
self.get_header_mut().insert_serialized("todo.scheduled", scheduled)?;
Ok(())
}
fn get_hidden(&self) -> Result<Option<NaiveDateTime>> {
get_optional_ndt(self, |hdr| hdr.hidden)
}
fn set_hidden(&mut self, hidden: NaiveDateTime) -> Result<()> {
self.get_header_mut().insert_serialized("todo.hidden", hidden)?;
Ok(())
}
fn get_due(&self) -> Result<Option<NaiveDateTime>> {
get_optional_ndt(self, |hdr| hdr.due)
}
fn set_due(&mut self, due: NaiveDateTime) -> Result<()> {
self.get_header_mut().insert_serialized("todo.due", due)?;
Ok(())
}
fn get_priority(&self) -> Result<Option<Priority>> {
get_header(self).map(|hdr| hdr.priority)
}
fn set_priority(&mut self, priority: Priority) -> Result<()> {
self.get_header_mut().insert_serialized("todo.priority", priority)?;
Ok(())
}
}
fn get_header(entry: &Entry) -> Result<TodoHeader> {
entry.get_header()
.read_partial::<TodoHeader>()?
.ok_or_else(|| {
format_err!("{} does not contain a TODO header", entry.get_location())
})
}
fn get_optional_ndt<F>(entry: &Entry, extractor: F)
-> Result<Option<NaiveDateTime>>
where F: FnOnce(TodoHeader) -> Option<String>
{
get_header(entry).map(extractor)?.map(datetime_from_string).transpose().map_err(Error::from)
}
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