tracc/src/timesheet.rs

141 lines
3.7 KiB
Rust

use super::listview::ListView;
use itertools::Itertools;
use serde::{Deserialize, Serialize};
use serde_json::from_reader;
use std::collections;
use std::default;
use std::fmt;
use std::fs;
use std::io;
use time::{Duration, OffsetDateTime, Time};
pub struct TimeSheet {
pub times: Vec<TimePoint>,
pub selected: usize,
pub register: Option<TimePoint>,
pub editing_time: bool,
}
#[derive(Serialize, Deserialize, Clone, Debug)]
pub struct TimePoint {
text: String,
time: Time,
}
impl TimePoint {
pub fn new(text: &str) -> Self {
Self {
text: String::from(text),
time: OffsetDateTime::now_local().time(),
}
}
}
impl fmt::Display for TimePoint {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "[{}] {}", self.time.format("%H:%M"), self.text)
}
}
impl default::Default for TimePoint {
fn default() -> Self {
TimePoint::new("")
}
}
fn read_times(path: &str) -> Option<Vec<TimePoint>> {
fs::File::open(path)
.ok()
.map(io::BufReader::new)
.and_then(|r| from_reader(r).ok())
}
impl TimeSheet {
pub fn open_or_create(path: &str) -> Self {
Self {
times: read_times(path).unwrap_or_else(|| vec![TimePoint::new("start")]),
selected: 0,
register: None,
editing_time: false,
}
}
pub fn printable(&self) -> Vec<String> {
self.times.iter().map(TimePoint::to_string).collect()
}
fn current(&self) -> &TimePoint {
&self.times[self.selected]
}
pub fn time_by_tasks(&self) -> String {
self.times
.iter()
.chain(std::iter::once(&TimePoint::new("end")))
.tuple_windows()
.map(|(prev, next)| (prev.text.clone(), next.time - prev.time))
// Fold into a map to group by description.
// I use a BTreeMap because I need a stable output order for the iterator
// (otherwise the summary list will jump around on every input).
.fold(collections::BTreeMap::new(), |mut map, (text, duration)| {
*map.entry(text).or_insert_with(Duration::zero) += duration;
map
})
.into_iter()
.filter(|(_, duration)| duration.whole_seconds() > 1)
.map(|(text, duration)| format!("{}: {}", text, format_duration(&duration)))
.join(" | ")
}
pub fn sum_as_str(&self) -> String {
let total = self
.times
.iter()
.map(|tp| tp.time)
.chain(std::iter::once(OffsetDateTime::now_local().time()))
.tuple_windows()
.fold(Duration::zero(), |total, (last, next)| {
total + (next - last)
});
format_duration(&total)
}
}
fn format_duration(d: &Duration) -> String {
format!("{}:{:02}", d.whole_hours(), d.whole_minutes().max(1) % 60)
}
impl ListView<TimePoint> for TimeSheet {
fn selection_pointer(&mut self) -> &mut usize {
&mut self.selected
}
fn list(&mut self) -> &mut Vec<TimePoint> {
&mut self.times
}
fn register(&mut self) -> &mut Option<TimePoint> {
&mut self.register
}
fn normal_mode(&mut self) {
if self.current().text.is_empty() {
self.remove_current();
self.selected = self.selected.saturating_sub(1);
}
self.times.sort_by_key(|t| t.time);
}
fn toggle_current(&mut self) {
self.editing_time = !self.editing_time;
}
fn append_to_current(&mut self, chr: char) {
self.times[self.selected].text.push(chr);
}
fn backspace(&mut self) {
self.times[self.selected].text.pop();
}
}