commit cd54eff6fe4114c0643291724b5ad095075a375f
Author: Jan-Bulthuis <git@bulthuis.dev>
Date:   Wed Feb 19 16:13:34 2025 +0100

    First half implementation

diff --git a/.gitignore b/.gitignore
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diff --git a/Cargo.lock b/Cargo.lock
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+]
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+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_gnullvm",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..13fa6dd
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "nixgreety"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+crossterm = "0.28.1"
+greetd_ipc = "0.10.3"
+ratatui = "0.29.0"
+tui-rain = "1.0.1"
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..c65e49a
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,191 @@
+use std::{
+    io,
+    marker::PhantomData,
+    time::{Duration, Instant},
+};
+
+use crossterm::event::{self, Event, KeyCode, KeyEvent, KeyEventKind};
+use ratatui::{
+    buffer::Buffer,
+    layout::{Constraint, Direction, Layout, Margin, Rect},
+    style::{Color, Stylize},
+    symbols::border,
+    text::Line,
+    widgets::{Block, Clear, Widget},
+    DefaultTerminal, Frame,
+};
+use tui_rain::Rain;
+
+fn main() -> io::Result<()> {
+    let mut terminal = ratatui::init();
+    let app_result = App::default().run(&mut terminal);
+    ratatui::restore();
+    app_result
+}
+
+#[derive(Debug)]
+pub struct App<'a> {
+    start_time: Instant,
+    last_draw: Instant,
+    exit: bool,
+
+    focus: Focus,
+
+    _marker: PhantomData<&'a ()>,
+}
+
+#[derive(Debug)]
+enum Focus {
+    Username,
+    Password,
+}
+
+impl Default for App<'_> {
+    fn default() -> Self {
+        let start_time = Instant::now();
+        let last_draw = Instant::now();
+        let exit = false;
+
+        let focus = Focus::Username;
+
+        Self {
+            start_time,
+            last_draw,
+            exit,
+
+            focus,
+
+            _marker: PhantomData,
+        }
+    }
+}
+
+impl App<'_> {
+    pub fn run(&mut self, terminal: &mut DefaultTerminal) -> io::Result<()> {
+        while !self.exit {
+            let draw_time = Instant::now();
+            terminal.draw(|frame| self.draw(frame))?;
+            self.last_draw = draw_time;
+            self.handle_events()?;
+        }
+        Ok(())
+    }
+
+    fn draw(&mut self, frame: &mut Frame) {
+        let rain_widget = Rain::new_matrix(self.start_time.elapsed())
+            .with_character_set(tui_rain::CharacterSet::UnicodeRange {
+                start: 0x21,
+                len: 94,
+            })
+            .with_bold_dim_effect(false)
+            .with_rain_density(tui_rain::RainDensity::Relative { sparseness: 60 })
+            .with_rain_speed(tui_rain::RainSpeed::Absolute { speed: 0.002 })
+            .with_rain_speed_variance(10000.0)
+            .with_tail_lifespan(Duration::from_millis(2500))
+            .with_color(Color::Green)
+            .with_head_color(Color::White)
+            .with_noise_interval(Duration::from_millis(2000));
+
+        let layout = Layout::default()
+            .direction(Direction::Horizontal)
+            .constraints(vec![Constraint::Percentage(40), Constraint::Percentage(20)])
+            .split(frame.area());
+        let layout = Layout::default()
+            .direction(Direction::Vertical)
+            .constraints(vec![Constraint::Percentage(40), Constraint::Percentage(20)])
+            .split(layout[1]);
+
+        let prompt_area = layout[1];
+        let inner_area = prompt_area.inner(Margin::new(1, 1));
+
+        let prompt_areas = Layout::default()
+            .direction(Direction::Vertical)
+            .constraints(vec![Constraint::Length(1), Constraint::Length(1)])
+            .split(inner_area);
+
+        frame.render_widget(rain_widget, frame.area());
+        frame.render_widget(Clear, prompt_area);
+
+        let title = Line::from(" Hewwo! >w< :3 ".bold());
+        let instructions = Line::from(vec![
+            " Decrement ".into(),
+            "<Left>".blue().bold(),
+            " Increment ".into(),
+            "<Right>".blue().bold(),
+            " Quit ".into(),
+            "<Q> ".blue().bold(),
+        ]);
+
+        let prompt_block = Block::bordered()
+            .title(title.left_aligned())
+            .title_bottom(instructions.centered())
+            .border_set(border::PLAIN);
+
+        frame.render_widget(prompt_block, prompt_area);
+
+        // TextPrompt::from("User").draw(frame, prompt_areas[0], &mut self.username_state);
+        // TextPrompt::from("Password")
+        //     .with_render_style(TextRenderStyle::Password)
+        //     .draw(frame, prompt_areas[1], &mut self.password_state);
+    }
+
+    fn handle_events(&mut self) -> io::Result<()> {
+        if event::poll(Duration::from_millis(10))? {
+            match event::read()? {
+                Event::Key(key_event) if key_event.kind == KeyEventKind::Press => {
+                    self.handle_key_event(key_event)
+                }
+                _ => {}
+            }
+        };
+        Ok(())
+    }
+
+    fn handle_key_event(&mut self, key_event: KeyEvent) {
+        match key_event.code {
+            KeyCode::Esc => self.exit(),
+            KeyCode::Tab => match self.focus {
+                Focus::Username => self.focus = Focus::Password,
+                Focus::Password => self.focus = Focus::Username,
+            },
+            KeyCode::BackTab => match self.focus {
+                Focus::Username => self.focus = Focus::Password,
+                Focus::Password => self.focus = Focus::Username,
+            },
+            _ => self.focus_handle_key_event(key_event),
+        }
+    }
+
+    fn focus_handle_key_event(&mut self, key_event: KeyEvent) {
+        // let state = match self.focus {
+        // Focus::Username => &mut self.username_state,
+        // Focus::Password => &mut self.password_state,
+        // };
+        // state.handle_key_event(key_event);
+    }
+
+    fn exit(&mut self) {
+        self.exit = true;
+    }
+}
+
+impl Widget for &mut App<'_> {
+    fn render(self, area: Rect, buf: &mut Buffer) {
+        let title = Line::from(" Hewwo >w< :3 ".bold());
+        let instructions = Line::from(vec![
+            " Decrement ".into(),
+            "<Left>".blue().bold(),
+            " Increment ".into(),
+            "<Right>".blue().bold(),
+            " Quit ".into(),
+            "<Q> ".blue().bold(),
+        ]);
+
+        let block = Block::bordered()
+            .title(title.left_aligned())
+            .title_bottom(instructions.centered())
+            .border_set(border::PLAIN);
+
+        block.render(area, buf);
+    }
+}