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//! Typed time file for cassiopeia
//!
//! This data gets generated by the `format` module, and can later be
//! used to generate new files, and perform various lookups and
//! analysis tasks.
use crate::{
error::{ParseError, ParseResult, UserResult},
format::ir::{IrItem, IrType, MakeIr},
timeline::{Entry, Timeline},
Date, Time,
};
use chrono::{DateTime, Duration, FixedOffset as Offset, Local, NaiveDate};
use std::collections::BTreeMap;
#[derive(Debug, Default)]
pub struct TimeFile {
/// A parsed header structure
pub(crate) header: BTreeMap<String, String>,
/// A parsed timeline of events
pub(crate) timeline: Timeline,
}
impl TimeFile {
/// Append entries to the timeline from the parsed IR
///
/// Report any errors that occur back to the parser, that will
/// print a message to the user and terminate the program.
pub(crate) fn append(&mut self, line: IrItem) -> ParseResult<()> {
match line {
IrItem {
tt: IrType::Header(ref header),
..
} => Ok(header.iter().for_each(|(k, v)| {
self.header.insert(k.clone(), v.clone());
})),
IrItem {
tt: IrType::Start(time),
lo,
} => Ok(self.timeline.start(time).map(|_| ())?),
IrItem {
tt: IrType::Stop(time),
lo,
} => Ok(self.timeline.stop(time).map(|_| ())?),
IrItem {
tt: IrType::Invoice(date),
lo,
} => Ok(self.timeline.invoice(date).map(|_| ())?),
_ => Err(ParseError::Unknown),
}
}
}
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
pub struct Session {
start: Time,
stop: Option<Time>,
}
impl Session {
/// Create a new session with a start time
pub(crate) fn start(start: Time) -> Self {
Self { start, stop: None }
}
/// Finalise a session with a stop time
pub(crate) fn stop(&mut self, stop: Time) {
self.stop = Some(stop);
}
/// Check whether this session was already finished
pub fn finished(&self) -> bool {
self.stop.is_some()
}
/// Get the length of the session, if it was already finished
pub fn length(&self) -> Option<Duration> {
self.stop.as_ref().map(|stop| stop - &self.start)
}
}
#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
pub struct Invoice {
pub(crate) date: Date,
}
impl Invoice {
pub(crate) fn new(date: Date) -> Self {
Self { date }
}
}
/// Changes to the timeline are encoded in a delta
pub(crate) enum Delta {
Start(Time),
Stop(Time),
Invoice(Date),
}
impl MakeIr for Delta {
fn make_ir(&self) -> IrType {
match self {
Self::Start(ref time) => IrType::Start(time.clone()),
Self::Stop(ref time) => IrType::Stop(time.clone()),
Self::Invoice(ref date) => IrType::Invoice(date.clone()),
}
}
}
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