feat: basic vscode theme export support

cosmic-theme/src/output/mod.rs

@@ -1,3 +1,46 @@
-#[cfg(feature = "gtk4-output")]
+use palette::{rgb::Rgba, Srgba};
+use thiserror::Error;
+
+use crate::Theme;
+
 /// Module for outputting the Cosmic gtk4 theme type as CSS
 pub mod gtk4_output;
+
+pub mod vs_code;
+
+#[derive(Error, Debug)]
+pub enum OutputError {
+    #[error("IO Error: {0}")]
+    Io(std::io::Error),
+    #[error("Missing config directory")]
+    MissingConfigDir,
+}
+
+impl Theme {
+    pub fn apply_exports(&self) -> Result<(), OutputError> {
+        let gtk_res = Theme::apply_gtk(self.is_dark);
+        let vs_res = self.clone().apply_vs_code();
+        gtk_res?;
+        vs_res?;
+        Ok(())
+    }
+
+    pub fn write_exports(&self) -> Result<(), OutputError> {
+        let gtk_res = self.write_gtk4();
+        gtk_res?;
+        Ok(())
+    }
+
+    pub fn reset_exports() -> Result<(), OutputError> {
+        let gtk_res = Theme::reset_gtk();
+        let vs_res = Theme::reset_vs_code();
+        gtk_res?;
+        vs_res?;
+        Ok(())
+    }
+}
+
+pub fn to_hex(c: Srgba) -> String {
+    let c_u8: Rgba<palette::encoding::Srgb, u8> = c.into_format();
+    format!("{:02x}{:02x}{:02x}", c_u8.red, c_u8.green, c_u8.blue)
+}