feat(bar): add first pass at configuration loader

komorebi-bar/src/config.rs

@@ -0,0 +1,106 @@
+use crate::widget::WidgetConfig;
+use eframe::egui::Pos2;
+use eframe::egui::TextBuffer;
+use eframe::egui::Vec2;
+use komorebi_client::Rect;
+use schemars::JsonSchema;
+use serde::Deserialize;
+use serde::Serialize;
+use std::path::PathBuf;
+
+#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
+pub struct KomobarConfig {
+    /// Viewport options (see: https://docs.rs/egui/latest/egui/viewport/struct.ViewportBuilder.html)
+    pub viewport: Option<ViewportConfig>,
+    /// Frame options (see: https://docs.rs/egui/latest/egui/containers/struct.Frame.html)
+    pub frame: Option<FrameConfig>,
+    /// Monitor options
+    pub monitor: MonitorConfig,
+    /// Font family
+    pub font_family: Option<String>,
+    /// Theme
+    pub theme: Option<Theme>,
+    /// Left side widgets (ordered left-to-right)
+    pub left_widgets: Vec<WidgetConfig>,
+    /// Right side widgets (ordered left-to-right)
+    pub right_widgets: Vec<WidgetConfig>,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
+pub struct ViewportConfig {
+    /// The desired starting position of the bar (0,0 = top left of the screen)
+    pub position: Option<Position>,
+    /// The desired size of the bar from the starting position (usually monitor width x desired height)
+    pub inner_size: Option<Position>,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
+pub struct FrameConfig {
+    /// Margin outside the painted frame
+    pub outer_margin: Position,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
+pub struct MonitorConfig {
+    /// Komorebi monitor index of the monitor on which to render the bar
+    pub index: usize,
+    /// Automatically apply a work area offset for this monitor to accommodate the bar
+    pub work_area_offset: Option<Rect>,
+}
+
+impl KomobarConfig {
+    pub fn read(path: &PathBuf) -> color_eyre::Result<Self> {
+        let content = std::fs::read_to_string(path)?;
+        let mut value: Self = match path.extension().unwrap().to_string_lossy().as_str() {
+            "yaml" => serde_yaml::from_str(&content)?,
+            "json" => serde_json::from_str(&content)?,
+            _ => panic!("unsupported format"),
+        };
+
+        if value.frame.is_none() {
+            value.frame = Some(FrameConfig {
+                outer_margin: Position { x: 10.0, y: 10.0 },
+            });
+        }
+
+        Ok(value)
+    }
+}
+
+#[derive(Copy, Clone, Debug, Serialize, Deserialize, JsonSchema)]
+pub struct Position {
+    /// X coordinate
+    pub x: f32,
+    /// Y coordinate
+    pub y: f32,
+}
+
+impl From<Position> for Vec2 {
+    fn from(value: Position) -> Self {
+        Self {
+            x: value.x,
+            y: value.y,
+        }
+    }
+}
+
+impl From<Position> for Pos2 {
+    fn from(value: Position) -> Self {
+        Self {
+            x: value.x,
+            y: value.y,
+        }
+    }
+}
+
+#[derive(Copy, Clone, Debug, Serialize, Deserialize, JsonSchema)]
+pub enum Theme {
+    /// Default egui theme
+    Default,
+    /// Catpuccin Frappe
+    CatppuccinFrappe,
+    /// Catpuccin Macchiato
+    CatppuccinMacchiato,
+    /// Catpuccin Mocha
+    CatppuccinMocha,
+}