clean up files, parse arguments with clap

src/buffer/widget/status_line.rs

@@ -0,0 +1,54 @@
+use crate::{buffer::{Buffer, Mode}, custom_greys::CustomGreys};
+use ratatui::{style::{Color, Stylize}, text::{Line, Span, Text}};
+
+impl Buffer {
+	pub fn render_status_line(&self) -> Text<'_> {
+		Text::from(
+			Line::from_iter([
+				self.render_mode(),
+				" ".into(),
+				self.render_file_name(),
+				self.modified_indicator(),
+				"  ".into(),
+				self.alert_message.clone()
+			])
+		)
+		.bg(Color::ui_grey())
+	}
+	
+	fn render_mode(&self) -> Span<'static> {
+		Span::from(self.mode.label())
+			.black()
+			.bg(self.mode.color())
+	}
+	
+	fn render_file_name(&self) -> Span<'_> {
+		Span::from(&self.file_name)
+	}
+	
+	fn modified_indicator(&self) -> Span<'static> {
+		if self.has_unsaved_changes() {
+			" [+]".into()
+		} else {
+			"".into()
+		}
+	}
+}
+
+impl Mode {
+	pub const fn label(self) -> &'static str {
+		match self {
+			Self::Normal => " NORMAL ",
+			Self::Select => " SELECT ",
+			Self::Insert => " INSERT ",
+		}
+	}
+	
+	pub const fn color(self) -> Color {
+		match self {
+			Self::Normal => Color::Blue,
+			Self::Select => Color::Yellow,
+			Self::Insert => Color::Green,
+		}
+	}
+}