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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 std::result::Result as RResult;
use failure::Fallible as Result;
use chrono::NaiveDateTime;
use uuid::Uuid;
use toml_query::insert::TomlValueInsertExt;
use libimagstore::store::FileLockEntry;
use libimagstore::store::Store;
use libimagstore::iter::Entries;
use libimagutil::date::datetime_to_string;
use libimagentryutil::isa::Is;
use crate::status::Status;
use crate::priority::Priority;
use crate::entry::TodoHeader;
use crate::entry::IsTodo;
pub trait TodoStore<'a> {
fn create_todo(&'a self,
status: Status,
scheduled: Option<NaiveDateTime>,
hidden: Option<NaiveDateTime>,
due: Option<NaiveDateTime>,
prio: Option<Priority>,
check_sanity: bool) -> Result<FileLockEntry<'a>>;
fn get_todo_by_uuid(&'a self, uuid: &Uuid) -> Result<Option<FileLockEntry<'a>>>;
fn get_todos(&self) -> Result<Entries>;
}
impl<'a> TodoStore<'a> for Store {
/// Create a new todo entry
///
/// # Warning
///
/// If check_sanity is set to false, this does not sanity-check the scheduled/hidden/due dates.
/// This might result in unintended behaviour (hidden after due date, scheduled before hidden
/// date... etc)
///
/// An user of this function might want to use `date_sanity_check()` to perform sanity checks
/// before calling TodoStore::create_todo() and show the Err(String) as a warning to user in an
/// interactive way.
fn create_todo(&'a self,
status: Status,
scheduled: Option<NaiveDateTime>,
hidden: Option<NaiveDateTime>,
due: Option<NaiveDateTime>,
prio: Option<Priority>,
check_sanity: bool) -> Result<FileLockEntry<'a>>
{
if check_sanity {
trace!("Checking sanity before creating todo");
if let Err(s) = date_sanity_check(scheduled.as_ref(), hidden.as_ref(), due.as_ref()) {
trace!("Not sane.");
return Err(format_err!("{}", s))
}
}
let uuid = Uuid::new_v4();
let uuid_s = format!("{}", uuid.to_hyphenated_ref()); // TODO: not how it is supposed to be
debug!("Created new UUID for todo = {}", uuid_s);
let mut entry = crate::module_path::new_id(uuid_s).and_then(|id| self.create(id))?;
let header = TodoHeader {
uuid,
status,
scheduled: scheduled.as_ref().map(datetime_to_string),
hidden: hidden.as_ref().map(datetime_to_string),
due: due.as_ref().map(datetime_to_string),
priority: prio
};
debug!("Created header for todo: {:?}", header);
let _ = entry.get_header_mut().insert_serialized("todo", header)?;
let _ = entry.set_isflag::<IsTodo>()?;
Ok(entry)
}
fn get_todo_by_uuid(&'a self, uuid: &Uuid) -> Result<Option<FileLockEntry<'a>>> {
let uuid_s = format!("{}", uuid.to_hyphenated_ref()); // TODO: not how it is supposed to be
debug!("Created new UUID for todo = {}", uuid_s);
let id = crate::module_path::new_id(uuid_s)?;
self.get(id)
}
/// Get all todos using Store::entries()
fn get_todos(&self) -> Result<Entries> {
self.entries().and_then(|es| es.in_collection("todo"))
}
}
/// Perform a sanity check on the scheduled/hidden/due dates
///
/// This function returns a String as error, which can be shown as a warning to the user or as an
/// error.
pub fn date_sanity_check(scheduled: Option<&NaiveDateTime>,
hidden: Option<&NaiveDateTime>,
due: Option<&NaiveDateTime>)
-> RResult<(), String>
{
if let (Some(sched), Some(hid)) = (scheduled.as_ref(), hidden.as_ref()) {
if sched > hid {
return Err(format!("Scheduled date after hidden date: {s}, {h}",
s = sched,
h = hid))
}
}
if let (Some(hid), Some(due)) = (hidden.as_ref(), due.as_ref()) {
if hid > due {
return Err(format!("Hidden date after due date: {h}, {d}",
h = hid,
d = due))
}
}
if let (Some(sched), Some(due)) = (scheduled.as_ref(), due.as_ref()) {
if sched > due {
return Err(format!("Scheduled date after due date: {s}, {d}",
s = sched,
d = due))
}
}
Ok(())
}
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