void-focus 0.3.0-alpha.3

A feature-rich terminal focus timer with task tracking
Documentation 
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use crate::canvas_timer::SceneStyle;
use crate::model::ThemeVariant;
use ratatui::style::Color;

pub struct Theme {
    pub bg: Color,
    pub text: Color,
    pub dim: Color,
    pub accent: Color,
    pub on_accent: Color,
    pub success: Color,
    pub warning: Color,
    pub error: Color,
    pub info: Color,
    pub progress_dim: Color,
    pub task_track: Color,
    pub panel: Color,
    pub panel_border: Color,
    pub select_bg: Color,
    pub select_fg: Color,
    pub active_bg: Color,
    pub active_fg: Color,
}

impl Theme {
    pub fn dark() -> Self {
        Self {
            bg: Color::Rgb(15, 15, 20),
            text: Color::Rgb(225, 225, 230),
            dim: Color::Rgb(90, 90, 100),
            accent: Color::Rgb(100, 180, 255),
            on_accent: Color::Rgb(10, 10, 15),
            success: Color::Rgb(80, 210, 130),
            warning: Color::Rgb(245, 185, 70),
            error: Color::Rgb(245, 85, 85),
            info: Color::Rgb(170, 140, 250),
            progress_dim: Color::Rgb(45, 45, 55),
            task_track: Color::Rgb(35, 35, 42),
            panel: Color::Rgb(20, 22, 30),
            panel_border: Color::Rgb(55, 60, 75),
            select_bg: Color::Rgb(38, 52, 78),
            select_fg: Color::Rgb(230, 235, 245),
            active_bg: Color::Rgb(32, 48, 72),
            active_fg: Color::Rgb(170, 210, 255),
        }
    }

    pub fn light() -> Self {
        Self {
            bg: Color::Rgb(250, 250, 252),
            text: Color::Rgb(30, 30, 35),
            dim: Color::Rgb(140, 140, 150),
            accent: Color::Rgb(25, 110, 200),
            on_accent: Color::Rgb(255, 255, 255),
            success: Color::Rgb(30, 150, 80),
            warning: Color::Rgb(200, 130, 20),
            error: Color::Rgb(200, 50, 50),
            info: Color::Rgb(110, 70, 190),
            progress_dim: Color::Rgb(200, 205, 215),
            task_track: Color::Rgb(220, 225, 232),
            panel: Color::Rgb(242, 245, 250),
            panel_border: Color::Rgb(190, 198, 210),
            select_bg: Color::Rgb(210, 225, 245),
            select_fg: Color::Rgb(20, 40, 70),
            active_bg: Color::Rgb(195, 218, 245),
            active_fg: Color::Rgb(15, 60, 120),
        }
    }

    pub fn polaris() -> Self {
        Self {
            bg: Color::Rgb(10, 14, 30),
            text: Color::Rgb(215, 225, 250),
            dim: Color::Rgb(100, 120, 160),
            accent: Color::Rgb(90, 200, 255),
            on_accent: Color::Rgb(10, 14, 30),
            success: Color::Rgb(80, 235, 180),
            warning: Color::Rgb(255, 160, 75),
            error: Color::Rgb(255, 95, 120),
            info: Color::Rgb(180, 135, 255),
            progress_dim: Color::Rgb(40, 50, 80),
            task_track: Color::Rgb(25, 35, 60),
            panel: Color::Rgb(14, 20, 38),
            panel_border: Color::Rgb(55, 70, 110),
            select_bg: Color::Rgb(28, 42, 78),
            select_fg: Color::Rgb(210, 225, 255),
            active_bg: Color::Rgb(22, 38, 68),
            active_fg: Color::Rgb(140, 210, 255),
        }
    }

    pub fn matrix() -> Self {
        Self {
            bg: Color::Rgb(3, 12, 5),
            text: Color::Rgb(150, 240, 140),
            dim: Color::Rgb(60, 110, 65),
            accent: Color::Rgb(80, 230, 90),
            on_accent: Color::Rgb(0, 0, 0),
            success: Color::Rgb(70, 220, 110),
            warning: Color::Rgb(220, 200, 60),
            error: Color::Rgb(255, 80, 90),
            info: Color::Rgb(100, 190, 240),
            progress_dim: Color::Rgb(15, 40, 18),
            task_track: Color::Rgb(8, 28, 10),
            panel: Color::Rgb(5, 16, 7),
            panel_border: Color::Rgb(35, 85, 40),
            select_bg: Color::Rgb(10, 32, 14),
            select_fg: Color::Rgb(160, 255, 165),
            active_bg: Color::Rgb(14, 42, 18),
            active_fg: Color::Rgb(110, 255, 120),
        }
    }

    pub fn from_variant(variant: ThemeVariant) -> Self {
        match variant {
            ThemeVariant::Dark => Theme::dark(),
            ThemeVariant::Light => Theme::light(),
            ThemeVariant::Polaris => Theme::polaris(),
            ThemeVariant::Matrix => Theme::matrix(),
        }
    }

    /// Colors for the dashboard / zen timer canvas, derived from core theme tokens.
    pub fn scene_style(&self, mode: Color) -> SceneStyle {
        SceneStyle {
            mode,
            track: self.progress_dim,
            task: self.success,
            task_dim: self.task_track,
            bg: self.bg,
            bg_mid: mix(self.bg, self.panel, 160),
            bg_light: self.panel,
            wave: self.accent,
            core: mode,
            glow: self.accent,
            particle: self.dim,
            text: self.text,
            session_on: self.accent,
            session_off: self.dim,
        }
    }
}

fn mix(a: Color, b: Color, t: u8) -> Color {
    let (ar, ag, ab) = rgb(a);
    let (br, bg, bb) = rgb(b);
    let t = t as u16;
    let inv = 255 - t;
    Color::Rgb(
        ((ar as u16 * inv + br as u16 * t) / 255) as u8,
        ((ag as u16 * inv + bg as u16 * t) / 255) as u8,
        ((ab as u16 * inv + bb as u16 * t) / 255) as u8,
    )
}

fn rgb(c: Color) -> (u8, u8, u8) {
    match c {
        Color::Rgb(r, g, b) => (r, g, b),
        Color::Black => (0, 0, 0),
        Color::White => (255, 255, 255),
        _ => (128, 128, 128),
    }
}