first commit

13 files changed, 1300 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
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index 0000000..ea8c4bf
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diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..5700523
--- /dev/null
+++ b/Cargo.lock
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diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/LICENSE
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+  A patent license is "discriminatory" if it does not include within
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+
+  Nothing in this License shall be construed as excluding or limiting
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+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
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+the Program, the only way you could satisfy both those terms and this
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+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
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+
+  14. Revised Versions of this License.
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+  The Free Software Foundation may publish revised and/or new versions of
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+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
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+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
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+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
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+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
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+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    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/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..ca61341
--- /dev/null
+++ b/README.md
@@ -0,0 +1,11 @@
+# Polydoro
+
+Pomodoro widget for polybar and friends. Pretty rusty, I'd say!
+
+## Licence
+
+Licenced under GNU General Public Licence V3
+
+GNU GPL License V3: [LICENSE](LICENSE)
+
+Copyright (c) 2025 Vidhu Kant Sharma
diff --git a/src/client/command.rs b/src/client/command.rs
new file mode 100644
index 0000000..030d33a
--- /dev/null
+++ b/src/client/command.rs
@@ -0,0 +1,37 @@
+/* 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 std::os::unix::net::UnixStream;
+use std::io::Write;
+
+pub fn handle_command(c: String) {
+    // check if the sock exists or not
+    let sock = "/tmp/polydorocmd.sock";
+    if !std::fs::metadata(sock).is_ok() {
+        eprintln!("Could not connect to socket {}, is the daemon running?", sock);
+        std::process::exit(1);
+    }
+
+    let mut stream = UnixStream::connect(sock)
+        .unwrap_or_else(|_| panic!("could not connect to daemon at {}", sock));
+
+    if let Err(e) = stream.write_all(format!("{}\n", c).as_bytes()) {
+        eprintln!("error: {}", e);
+        std::process::exit(1);
+    }
+    let _ = stream.flush();
+}
diff --git a/src/client/listener.rs b/src/client/listener.rs
new file mode 100644
index 0000000..2e223f6
--- /dev/null
+++ b/src/client/listener.rs
@@ -0,0 +1,73 @@
+/* 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 std::os::unix::net::UnixStream;
+use std::io::{BufReader};
+
+use bincode::{decode_from_std_read, config};
+use crate::daemon::pomo::{Pomo,State};
+
+pub fn start_listener() {
+    let sock_path = "/tmp/polydorod.sock";
+    let stream = UnixStream::connect(sock_path).unwrap_or_else(|_| panic!("could not connect to daemon"));
+    let mut reader = BufReader::new(stream);
+
+    loop {
+        // blocks until a struct is received
+        match decode_from_std_read::<Pomo, _, _>(&mut reader, config::standard()) {
+            Ok(p) => {
+                pretty_print(p);
+            }
+            Err(e) => {
+                eprintln!("polydoro listener error: {}", e);
+                std::process::exit(1);
+            }
+        }
+    }
+}
+
+pub fn format_time(secs: u64) -> String {
+    format!("{:02}:{:02}", secs / 60, secs % 60)
+}
+
+pub fn pretty_print(p: Pomo) {
+    let format_work = "work";
+    let format_work_paused = "[work]";
+    let format_work_idle = "(work)";
+    let format_break = "break";
+    let format_break_paused = "[break]";
+    let format_break_idle = "(break)";
+    let format_long_break = "long break";
+    let format_long_break_paused = "[long break]";
+    let format_long_break_idle = "(long break)";
+
+    let f = match p.current_state {
+        State::Work => format_work,
+        State::Break => format_break,
+        State::LongBreak => format_long_break,
+
+        State::WorkPaused => format_work_paused,
+        State::BreakPaused => format_break_paused,
+        State::LongBreakPaused => format_long_break_paused,
+
+        State::WorkIdle => format_work_idle,
+        State::BreakIdle => format_break_idle,
+        State::LongBreakIdle => format_long_break_idle,
+    };
+
+    println!("{} {} - {}", f, p.counter, format_time(p.secs_elapsed));
+}
diff --git a/src/client/mod.rs b/src/client/mod.rs
new file mode 100644
index 0000000..b86d042
--- /dev/null
+++ b/src/client/mod.rs
@@ -0,0 +1,19 @@
+/* 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/>.
+ */
+
+pub mod command;
+pub mod listener;
diff --git a/src/daemon/clock.rs b/src/daemon/clock.rs
new file mode 100644
index 0000000..98ad292
--- /dev/null
+++ b/src/daemon/clock.rs
@@ -0,0 +1,82 @@
+/* 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 std::sync::mpsc::Receiver;
+use std::thread;
+use std::time::Duration;
+use std::os::unix::net::{UnixStream,UnixListener};
+use bincode::{encode_into_std_write,config};
+
+use crate::daemon::pomo::Pomo;
+use crate::daemon::command::Command;
+
+pub fn start_clock(rx: Receiver<Command>) -> thread::JoinHandle<()> {  
+    thread::spawn(move || {
+        let mut p = Pomo::new();
+
+        // check if a socket already exists (only one daemon allowed!)
+        let sock = "/tmp/polydorod.sock";
+        if std::fs::metadata(sock).is_ok() {
+            eprintln!("socket {} already exists, is another daemon running?", sock);
+            std::process::exit(1);
+        }
+        
+        // all OK, create a sock
+        let listener = UnixListener::bind(sock).expect("failed to bind socket /tmp/polydorod.sock");
+        listener.set_nonblocking(true).unwrap();
+
+        // all of the connected listeners
+        let mut listeners: Vec<UnixStream> = Vec::new();
+
+        loop {
+            // if new listener is connected
+            match listener.accept() {
+                Ok((stream, _addr)) => {
+                    listeners.push(stream);
+                }
+                Err(ref e) if e.kind() == std::io::ErrorKind::WouldBlock => {} // no new client
+                Err(e) => eprintln!("error while adding new listener: {}", e),
+            }
+
+            // listen to commands 
+            while let Ok(cmd) = rx.try_recv() {
+                match cmd {
+                    Command::Run => p.run(),
+                    Command::Pause => p.pause(),
+                    Command::Toggle => p.toggle(), 
+                    Command::Skip => p.end_cycle(), 
+                    Command::SoftReset => p.soft_reset(),
+                    Command::HardReset => p.hard_reset(),
+                    Command::Reset => p.reset(),
+                }
+            }
+
+            p.tick();
+
+            // send p struct to the listeners listening to polydorod.sock
+            listeners.retain_mut(|l| {
+                if let Err(_) = encode_into_std_write(&p, l, config::standard()) {
+                    false // drop this listener, seems to be disconnected
+                } else {
+                    true
+                }
+            });
+
+            thread::sleep(Duration::from_secs(1));
+        }
+    })
+}
diff --git a/src/daemon/command.rs b/src/daemon/command.rs
new file mode 100644
index 0000000..18ee41d
--- /dev/null
+++ b/src/daemon/command.rs
@@ -0,0 +1,71 @@
+/* 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 std::os::unix::net::UnixListener;
+use std::io::{BufRead, BufReader};
+use std::thread;
+use std::sync::mpsc::Sender;
+
+pub enum Command {
+    Run,
+    Pause,
+    Toggle, // conditional run/pause
+    Skip,
+    SoftReset,
+    HardReset,
+    Reset, // conditional soft/hard reset
+}
+
+pub fn start_command_listener(tx: Sender<Command>) -> thread::JoinHandle<()> {
+    thread::spawn(move || {
+        // check if a socket already exists (only one daemon allowed!)
+        let sock = "/tmp/polydorocmd.sock";
+        if std::fs::metadata(sock).is_ok() {
+            eprintln!("socket {} already exists, is another daemon running?", sock);
+            std::process::exit(1);
+        }
+        
+        // all OK, create a sock
+        let listener = UnixListener::bind(sock).expect("failed to bind socket /tmp/polydorocmd.sock");
+
+        for stream in listener.incoming() {
+            match stream {
+                Ok(s) => {
+                    let mut reader = BufReader::new(s);
+                    let mut buf = String::new();
+
+                    if let Ok(_) = reader.read_line(&mut buf) {
+                        let msg = match buf.trim() {
+                            "run" => Command::Run,
+                            "pause" => Command::Pause,
+                            "toggle" => Command::Toggle,
+                            "skip" => Command::Skip,
+                            "soft-reset" => Command::SoftReset,
+                            "hard-reset" => Command::HardReset,
+                            "reset" => Command::Reset,
+                            &_ => Command::Run, // doesn't matter, pretty sure it won't ever hit this case
+                        };
+
+                        let _ = tx.send(msg).unwrap();
+                    }
+                },
+                Err(_) => {}
+            }
+        }
+
+    })
+}
diff --git a/src/daemon/mod.rs b/src/daemon/mod.rs
new file mode 100644
index 0000000..9b40822
--- /dev/null
+++ b/src/daemon/mod.rs
@@ -0,0 +1,32 @@
+/* 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 std::sync::mpsc;
+
+mod clock;
+pub mod command;
+pub mod pomo;
+
+pub fn start_daemon() {
+    let (tx, rx) = mpsc::channel::<command::Command>();
+
+    let _clock = clock::start_clock(rx);
+    let _command_listener = command::start_command_listener(tx);
+
+    _clock.join().unwrap();
+    _command_listener.join().unwrap();
+}
diff --git a/src/daemon/pomo.rs b/src/daemon/pomo.rs
new file mode 100644
index 0000000..3129e7d
--- /dev/null
+++ b/src/daemon/pomo.rs
@@ -0,0 +1,160 @@
+/* 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};
+
+#[derive(Encode, Decode, PartialEq, Clone, Copy)]
+pub enum State {
+    WorkIdle,
+    BreakIdle,
+    LongBreakIdle,
+    Work,
+    Break,
+    LongBreak,
+    WorkPaused,
+    BreakPaused,
+    LongBreakPaused,
+}
+
+#[derive(Encode, Decode)]
+pub struct Pomo {
+    work_duration: u64,
+    break_duration: u64,
+    long_break_duration: u64,
+    long_break_interval: u64,
+
+    // only these are supposed to change
+    pub secs_elapsed: u64,
+    pub counter: u64,
+    pub current_state: State,
+}
+
+impl Pomo {
+    pub fn new() -> Self {
+        Pomo {
+            secs_elapsed: 0,
+            counter: 1,
+            current_state: State::WorkIdle,
+
+            // TODO: load from config, probably
+            work_duration: 25,// * 60,
+            break_duration: 5,// * 60,
+            long_break_duration: 20,// * 60,
+            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(),
+        }
+    }
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..b66df77
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,36 @@
+/* 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 std::env;
+
+mod client;
+mod daemon;
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+
+    if args.len() == 2 {
+        match args[1].as_str() {
+            "run" | "pause" | "toggle" | "skip" | "soft-reset" | "hard-reset" | "reset" => client::command::handle_command(args[1].clone()),
+            "-d" => daemon::start_daemon(),
+            "-l" => client::listener::start_listener(),
+            "-h" | _ => eprintln!("<help message>"),
+        }
+    } else {
+        eprintln!("<help message>");
+    }
+}