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/* Polydoro - Pomodoro widget for polybar and friends
* Copyright (C) 2025 Vidhu Kant Sharma <vidhukant@vidhukant.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
use bincode::{Encode, Decode};
use std::env;
#[derive(Encode, Decode, PartialEq, Clone, Copy)]
pub enum State {
WorkIdle,
BreakIdle,
LongBreakIdle,
Work,
Break,
LongBreak,
WorkPaused,
BreakPaused,
LongBreakPaused,
}
#[derive(Encode, Decode)]
pub struct Pomo {
long_break_interval: u16,
pub work_duration: u16,
pub break_duration: u16,
pub long_break_duration: u16,
// only these are supposed to change
pub secs_elapsed: u16,
pub counter: u16,
pub current_state: State,
}
impl Pomo {
pub fn new() -> Self {
Pomo {
secs_elapsed: 0,
counter: 1,
current_state: State::WorkIdle,
work_duration: get_envvar("WORK_DURATION", 25 * 60),
break_duration: get_envvar("BREAK_DURATION", 5 * 60),
long_break_duration: get_envvar("LONG_BREAK_DURATION", 20 * 60),
long_break_interval: get_envvar("LONG_BREAK_INTERVAL", 4),
}
}
pub fn tick(&mut self) {
// only tick on running states
if matches!(self.current_state, State::Work | State::Break | State::LongBreak) {
self.secs_elapsed += 1;
let duration = match self.current_state {
State::Work => self.work_duration,
State::Break => self.break_duration,
State::LongBreak => self.long_break_duration,
_ => 0, // will never hit this case
};
if self.secs_elapsed >= duration {
self.end_cycle();
}
}
}
// start/unpause a cycle
pub fn run(&mut self) {
self.current_state = match self.current_state {
State::WorkIdle => State::Work,
State::BreakIdle => State::Break,
State::LongBreakIdle => State::LongBreak,
State::WorkPaused => State::Work,
State::BreakPaused => State::Break,
State::LongBreakPaused => State::LongBreak,
_ => return // already running
};
}
pub fn pause(&mut self) {
self.current_state = match self.current_state {
State::Work => State::WorkPaused,
State::Break => State::BreakPaused,
State::LongBreak => State::LongBreakPaused,
_ => return, // idle and paused don't have a place here
};
}
// conditionally pause/run
pub fn toggle(&mut self) {
match self.current_state {
State::Work | State::Break | State::LongBreak => self.pause(),
_ => self.run(),
}
}
// also used in the skip command
pub fn end_cycle(&mut self) {
match self.current_state {
State::Work => {
self.secs_elapsed = 0;
self.current_state = if self.counter == self.long_break_interval {
State::LongBreakIdle
} else {
State::BreakIdle
};
},
State::Break => {
self.secs_elapsed = 0;
self.current_state = State::WorkIdle;
// because we move on to the next task after the break
self.counter += 1;
}
State::LongBreak => self.hard_reset(),
_ => return, // paused and idle state can't be ended
}
}
// reset current cycle
pub fn soft_reset(&mut self) {
self.secs_elapsed = 0;
self.current_state = match self.current_state {
State::Work | State::WorkPaused => State::WorkIdle,
State::Break | State::BreakPaused => State::BreakIdle,
State::LongBreak | State::LongBreakPaused => State::LongBreakIdle,
_ => self.current_state, // if already in an idle state, don't change (probably won't hit anyways)
};
}
// reset all cycles
pub fn hard_reset(&mut self) {
self.secs_elapsed = 0;
self.counter = 1;
self.current_state = State::WorkIdle;
}
// conditionally do a soft or a hard reset
pub fn reset(&mut self) {
match self.current_state {
State::WorkIdle | State::BreakIdle | State::LongBreakIdle => self.hard_reset(),
_ => self.soft_reset(),
}
}
}
fn get_envvar(key: &str, def: u16) -> u16 {
env::var(key)
.ok()
.and_then(|v| v.parse::<u16>().ok())
.unwrap_or(def)
}
|
