refactor(configuration): modularize code and better handling of default options (#32)

* fix(config): set ui default configuration values

* refactor(configuration): modularize code and better handling of default options

crates/television/config.rs

@@ -1,20 +1,20 @@
 #![allow(clippy::module_name_repetitions)]
-use std::{collections::HashMap, env, path::PathBuf};
+use std::{env, path::PathBuf};
 
-use crate::{
-    action::Action,
-    event::{convert_raw_event_to_key, Key},
-    television::Mode,
-};
 use color_eyre::{eyre::Context, Result};
-use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
-use derive_deref::{Deref, DerefMut};
 use directories::ProjectDirs;
+pub use keybindings::KeyBindings;
 use lazy_static::lazy_static;
-use ratatui::style::{Color, Modifier, Style};
+use previewers::PreviewersConfig;
-use serde::{de::Deserializer, Deserialize};
+use serde::Deserialize;
-use television_previewers::previewers::{self, PreviewerConfig};
+use styles::Styles;
 use tracing::{debug, warn};
+use ui::UiConfig;
+
+mod keybindings;
+mod previewers;
+mod styles;
+mod ui;
 
 const CONFIG: &str = include_str!("../../.config/config.toml");
 
@@ -27,56 +27,6 @@ pub struct AppConfig {
     pub config_dir: PathBuf,
 }
 
-const DEFAULT_UI_SCALE: u16 = 90;
-
-#[derive(Clone, Debug, Deserialize)]
-pub struct UiConfig {
-    pub use_nerd_font_icons: bool,
-    pub ui_scale: u16,
-}
-
-impl Default for UiConfig {
-    fn default() -> Self {
-        Self {
-            use_nerd_font_icons: false,
-            ui_scale: DEFAULT_UI_SCALE,
-        }
-    }
-}
-
-#[derive(Clone, Debug, Deserialize, Default)]
-pub struct PreviewersConfig {
-    #[serde(default)]
-    pub basic: BasicPreviewerConfig,
-    #[serde(default)]
-    pub directory: DirectoryPreviewerConfig,
-    pub file: FilePreviewerConfig,
-    #[serde(default)]
-    pub env_var: EnvVarPreviewerConfig,
-}
-
-impl From<PreviewersConfig> for PreviewerConfig {
-    fn from(val: PreviewersConfig) -> Self {
-        PreviewerConfig::default()
-            .file(previewers::FilePreviewerConfig::new(val.file.theme.clone()))
-    }
-}
-
-#[derive(Clone, Debug, Deserialize, Default)]
-pub struct BasicPreviewerConfig {}
-
-#[derive(Clone, Debug, Deserialize, Default)]
-pub struct DirectoryPreviewerConfig {}
-
-#[derive(Clone, Debug, Deserialize, Default)]
-pub struct FilePreviewerConfig {
-    //pub max_file_size: u64,
-    pub theme: String,
-}
-
-#[derive(Clone, Debug, Deserialize, Default)]
-pub struct EnvVarPreviewerConfig {}
-
 #[allow(dead_code)]
 #[derive(Clone, Debug, Default, Deserialize)]
 pub struct Config {
@@ -87,6 +37,7 @@ pub struct Config {
     pub keybindings: KeyBindings,
     #[serde(default)]
     pub styles: Styles,
+    #[serde(default)]
     pub ui: UiConfig,
     #[serde(default)]
     pub previewers: PreviewersConfig,
@@ -123,7 +74,9 @@ impl Config {
         let config_dir = get_config_dir();
         let mut builder = config::Config::builder()
             .set_default("data_dir", data_dir.to_str().unwrap())?
-            .set_default("config_dir", config_dir.to_str().unwrap())?;
+            .set_default("config_dir", config_dir.to_str().unwrap())?
+            .set_default("ui", UiConfig::default())?
+            .set_default("previewers", PreviewersConfig::default())?;
 
         // Load the user's config file
         let source = config::File::from(config_dir.join(CONFIG_FILE_NAME))
@@ -196,384 +149,13 @@ fn project_directory() -> Option<ProjectDirs> {
     ProjectDirs::from("com", "", env!("CARGO_PKG_NAME"))
 }
 
-#[derive(Clone, Debug, Default, Deref, DerefMut)]
-pub struct KeyBindings(pub config::Map<Mode, config::Map<Action, Key>>);
-
-impl<'de> Deserialize<'de> for KeyBindings {
-    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-    where
-        D: Deserializer<'de>,
-    {
-        let parsed_map =
-            HashMap::<Mode, HashMap<Action, String>>::deserialize(
-                deserializer,
-            )?;
-
-        let keybindings = parsed_map
-            .into_iter()
-            .map(|(mode, inner_map)| {
-                let converted_inner_map = inner_map
-                    .into_iter()
-                    .map(|(cmd, key_str)| (cmd, parse_key(&key_str).unwrap()))
-                    .collect();
-                (mode, converted_inner_map)
-            })
-            .collect();
-
-        Ok(KeyBindings(keybindings))
-    }
-}
-
-fn parse_key_event(raw: &str) -> Result<KeyEvent, String> {
-    let raw_lower = raw.to_ascii_lowercase();
-    let (remaining, modifiers) = extract_modifiers(&raw_lower);
-    parse_key_code_with_modifiers(remaining, modifiers)
-}
-
-fn extract_modifiers(raw: &str) -> (&str, KeyModifiers) {
-    let mut modifiers = KeyModifiers::empty();
-    let mut current = raw;
-
-    loop {
-        match current {
-            rest if rest.starts_with("ctrl-") => {
-                modifiers.insert(KeyModifiers::CONTROL);
-                current = &rest[5..];
-            }
-            rest if rest.starts_with("alt-") => {
-                modifiers.insert(KeyModifiers::ALT);
-                current = &rest[4..];
-            }
-            rest if rest.starts_with("shift-") => {
-                modifiers.insert(KeyModifiers::SHIFT);
-                current = &rest[6..];
-            }
-            _ => break, // break out of the loop if no known prefix is detected
-        };
-    }
-
-    (current, modifiers)
-}
-
-fn parse_key_code_with_modifiers(
-    raw: &str,
-    mut modifiers: KeyModifiers,
-) -> Result<KeyEvent, String> {
-    let c = match raw {
-        "esc" => KeyCode::Esc,
-        "enter" => KeyCode::Enter,
-        "left" => KeyCode::Left,
-        "right" => KeyCode::Right,
-        "up" => KeyCode::Up,
-        "down" => KeyCode::Down,
-        "home" => KeyCode::Home,
-        "end" => KeyCode::End,
-        "pageup" => KeyCode::PageUp,
-        "pagedown" => KeyCode::PageDown,
-        "backtab" => {
-            modifiers.insert(KeyModifiers::SHIFT);
-            KeyCode::BackTab
-        }
-        "backspace" => KeyCode::Backspace,
-        "delete" => KeyCode::Delete,
-        "insert" => KeyCode::Insert,
-        "f1" => KeyCode::F(1),
-        "f2" => KeyCode::F(2),
-        "f3" => KeyCode::F(3),
-        "f4" => KeyCode::F(4),
-        "f5" => KeyCode::F(5),
-        "f6" => KeyCode::F(6),
-        "f7" => KeyCode::F(7),
-        "f8" => KeyCode::F(8),
-        "f9" => KeyCode::F(9),
-        "f10" => KeyCode::F(10),
-        "f11" => KeyCode::F(11),
-        "f12" => KeyCode::F(12),
-        "space" => KeyCode::Char(' '),
-        "hyphen" | "minus" => KeyCode::Char('-'),
-        "tab" => KeyCode::Tab,
-        c if c.len() == 1 => {
-            let mut c = c.chars().next().unwrap();
-            if modifiers.contains(KeyModifiers::SHIFT) {
-                c = c.to_ascii_uppercase();
-            }
-            KeyCode::Char(c)
-        }
-        _ => return Err(format!("Unable to parse {raw}")),
-    };
-    Ok(KeyEvent::new(c, modifiers))
-}
-
-#[allow(dead_code)]
-pub fn key_event_to_string(key_event: &KeyEvent) -> String {
-    let char;
-    let key_code = match key_event.code {
-        KeyCode::Backspace => "backspace",
-        KeyCode::Enter => "enter",
-        KeyCode::Left => "left",
-        KeyCode::Right => "right",
-        KeyCode::Up => "up",
-        KeyCode::Down => "down",
-        KeyCode::Home => "home",
-        KeyCode::End => "end",
-        KeyCode::PageUp => "pageup",
-        KeyCode::PageDown => "pagedown",
-        KeyCode::Tab => "tab",
-        KeyCode::BackTab => "backtab",
-        KeyCode::Delete => "delete",
-        KeyCode::Insert => "insert",
-        KeyCode::F(c) => {
-            char = format!("f({c})");
-            &char
-        }
-        KeyCode::Char(' ') => "space",
-        KeyCode::Char(c) => {
-            char = c.to_string();
-            &char
-        }
-        KeyCode::Esc => "esc",
-        KeyCode::Null
-        | KeyCode::CapsLock
-        | KeyCode::Menu
-        | KeyCode::ScrollLock
-        | KeyCode::Media(_)
-        | KeyCode::NumLock
-        | KeyCode::PrintScreen
-        | KeyCode::Pause
-        | KeyCode::KeypadBegin
-        | KeyCode::Modifier(_) => "",
-    };
-
-    let mut modifiers = Vec::with_capacity(3);
-
-    if key_event.modifiers.intersects(KeyModifiers::CONTROL) {
-        modifiers.push("ctrl");
-    }
-
-    if key_event.modifiers.intersects(KeyModifiers::SHIFT) {
-        modifiers.push("shift");
-    }
-
-    if key_event.modifiers.intersects(KeyModifiers::ALT) {
-        modifiers.push("alt");
-    }
-
-    let mut key = modifiers.join("-");
-
-    if !key.is_empty() {
-        key.push('-');
-    }
-    key.push_str(key_code);
-
-    key
-}
-
-pub fn parse_key(raw: &str) -> Result<Key, String> {
-    if raw.chars().filter(|c| *c == '>').count()
-        != raw.chars().filter(|c| *c == '<').count()
-    {
-        return Err(format!("Unable to parse `{raw}`"));
-    }
-    let raw = if raw.contains("><") {
-        raw
-    } else {
-        let raw = raw.strip_prefix('<').unwrap_or(raw);
-        let raw = raw.strip_suffix('>').unwrap_or(raw);
-        raw
-    };
-    let key_event = parse_key_event(raw)?;
-    Ok(convert_raw_event_to_key(key_event))
-}
-
-#[derive(Clone, Debug, Default, Deref, DerefMut)]
-pub struct Styles(pub HashMap<Mode, HashMap<String, Style>>);
-
-impl<'de> Deserialize<'de> for Styles {
-    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-    where
-        D: Deserializer<'de>,
-    {
-        let parsed_map =
-            HashMap::<Mode, HashMap<String, String>>::deserialize(
-                deserializer,
-            )?;
-
-        let styles = parsed_map
-            .into_iter()
-            .map(|(mode, inner_map)| {
-                let converted_inner_map = inner_map
-                    .into_iter()
-                    .map(|(str, style)| (str, parse_style(&style)))
-                    .collect();
-                (mode, converted_inner_map)
-            })
-            .collect();
-
-        Ok(Styles(styles))
-    }
-}
-
-pub fn parse_style(line: &str) -> Style {
-    let (foreground, background) =
-        line.split_at(line.to_lowercase().find("on ").unwrap_or(line.len()));
-    let foreground = process_color_string(foreground);
-    let background = process_color_string(&background.replace("on ", ""));
-
-    let mut style = Style::default();
-    if let Some(fg) = parse_color(&foreground.0) {
-        style = style.fg(fg);
-    }
-    if let Some(bg) = parse_color(&background.0) {
-        style = style.bg(bg);
-    }
-    style = style.add_modifier(foreground.1 | background.1);
-    style
-}
-
-fn process_color_string(color_str: &str) -> (String, Modifier) {
-    let color = color_str
-        .replace("grey", "gray")
-        .replace("bright ", "")
-        .replace("bold ", "")
-        .replace("underline ", "")
-        .replace("inverse ", "");
-
-    let mut modifiers = Modifier::empty();
-    if color_str.contains("underline") {
-        modifiers |= Modifier::UNDERLINED;
-    }
-    if color_str.contains("bold") {
-        modifiers |= Modifier::BOLD;
-    }
-    if color_str.contains("inverse") {
-        modifiers |= Modifier::REVERSED;
-    }
-
-    (color, modifiers)
-}
-
-#[allow(clippy::cast_possible_truncation)]
-fn parse_color(s: &str) -> Option<Color> {
-    let s = s.trim_start();
-    let s = s.trim_end();
-    if s.contains("bright color") {
-        let s = s.trim_start_matches("bright ");
-        let c = s
-            .trim_start_matches("color")
-            .parse::<u8>()
-            .unwrap_or_default();
-        Some(Color::Indexed(c.wrapping_shl(8)))
-    } else if s.contains("color") {
-        let c = s
-            .trim_start_matches("color")
-            .parse::<u8>()
-            .unwrap_or_default();
-        Some(Color::Indexed(c))
-    } else if s.contains("gray") {
-        let c = 232
-            + s.trim_start_matches("gray")
-                .parse::<u8>()
-                .unwrap_or_default();
-        Some(Color::Indexed(c))
-    } else if s.contains("rgb") {
-        let red =
-            (s.as_bytes()[3] as char).to_digit(10).unwrap_or_default() as u8;
-        let green =
-            (s.as_bytes()[4] as char).to_digit(10).unwrap_or_default() as u8;
-        let blue =
-            (s.as_bytes()[5] as char).to_digit(10).unwrap_or_default() as u8;
-        let c = 16 + red * 36 + green * 6 + blue;
-        Some(Color::Indexed(c))
-    } else if s == "bold black" {
-        Some(Color::Indexed(8))
-    } else if s == "bold red" {
-        Some(Color::Indexed(9))
-    } else if s == "bold green" {
-        Some(Color::Indexed(10))
-    } else if s == "bold yellow" {
-        Some(Color::Indexed(11))
-    } else if s == "bold blue" {
-        Some(Color::Indexed(12))
-    } else if s == "bold magenta" {
-        Some(Color::Indexed(13))
-    } else if s == "bold cyan" {
-        Some(Color::Indexed(14))
-    } else if s == "bold white" {
-        Some(Color::Indexed(15))
-    } else if s == "black" {
-        Some(Color::Indexed(0))
-    } else if s == "red" {
-        Some(Color::Indexed(1))
-    } else if s == "green" {
-        Some(Color::Indexed(2))
-    } else if s == "yellow" {
-        Some(Color::Indexed(3))
-    } else if s == "blue" {
-        Some(Color::Indexed(4))
-    } else if s == "magenta" {
-        Some(Color::Indexed(5))
-    } else if s == "cyan" {
-        Some(Color::Indexed(6))
-    } else if s == "white" {
-        Some(Color::Indexed(7))
-    } else {
-        None
-    }
-}
-
 #[cfg(test)]
 mod tests {
-    use pretty_assertions::assert_eq;
-
     use super::*;
-
+    use crate::action::Action;
-    #[test]
+    use crate::config::keybindings::parse_key;
-    fn test_parse_style_default() {
+    use crate::television::Mode;
-        let style = parse_style("");
+    use pretty_assertions::assert_eq;
-        assert_eq!(style, Style::default());
-    }
-
-    #[test]
-    fn test_parse_style_foreground() {
-        let style = parse_style("red");
-        assert_eq!(style.fg, Some(Color::Indexed(1)));
-    }
-
-    #[test]
-    fn test_parse_style_background() {
-        let style = parse_style("on blue");
-        assert_eq!(style.bg, Some(Color::Indexed(4)));
-    }
-
-    #[test]
-    fn test_parse_style_modifiers() {
-        let style = parse_style("underline red on blue");
-        assert_eq!(style.fg, Some(Color::Indexed(1)));
-        assert_eq!(style.bg, Some(Color::Indexed(4)));
-    }
-
-    #[test]
-    fn test_process_color_string() {
-        let (color, modifiers) =
-            process_color_string("underline bold inverse gray");
-        assert_eq!(color, "gray");
-        assert!(modifiers.contains(Modifier::UNDERLINED));
-        assert!(modifiers.contains(Modifier::BOLD));
-        assert!(modifiers.contains(Modifier::REVERSED));
-    }
-
-    #[test]
-    fn test_parse_color_rgb() {
-        let color = parse_color("rgb123");
-        let expected = 16 + 36 + 2 * 6 + 3;
-        assert_eq!(color, Some(Color::Indexed(expected)));
-    }
-
-    #[test]
-    fn test_parse_color_unknown() {
-        let color = parse_color("unknown");
-        assert_eq!(color, None);
-    }
 
     #[test]
     fn test_config() -> Result<()> {
@@ -587,89 +169,4 @@ mod tests {
         );
         Ok(())
     }
-
-    #[test]
-    fn test_simple_keys() {
-        assert_eq!(
-            parse_key_event("a").unwrap(),
-            KeyEvent::new(KeyCode::Char('a'), KeyModifiers::empty())
-        );
-
-        assert_eq!(
-            parse_key_event("enter").unwrap(),
-            KeyEvent::new(KeyCode::Enter, KeyModifiers::empty())
-        );
-
-        assert_eq!(
-            parse_key_event("esc").unwrap(),
-            KeyEvent::new(KeyCode::Esc, KeyModifiers::empty())
-        );
-    }
-
-    #[test]
-    fn test_with_modifiers() {
-        assert_eq!(
-            parse_key_event("ctrl-a").unwrap(),
-            KeyEvent::new(KeyCode::Char('a'), KeyModifiers::CONTROL)
-        );
-
-        assert_eq!(
-            parse_key_event("alt-enter").unwrap(),
-            KeyEvent::new(KeyCode::Enter, KeyModifiers::ALT)
-        );
-
-        assert_eq!(
-            parse_key_event("shift-esc").unwrap(),
-            KeyEvent::new(KeyCode::Esc, KeyModifiers::SHIFT)
-        );
-    }
-
-    #[test]
-    fn test_multiple_modifiers() {
-        assert_eq!(
-            parse_key_event("ctrl-alt-a").unwrap(),
-            KeyEvent::new(
-                KeyCode::Char('a'),
-                KeyModifiers::CONTROL | KeyModifiers::ALT
-            )
-        );
-
-        assert_eq!(
-            parse_key_event("ctrl-shift-enter").unwrap(),
-            KeyEvent::new(
-                KeyCode::Enter,
-                KeyModifiers::CONTROL | KeyModifiers::SHIFT
-            )
-        );
-    }
-
-    #[test]
-    fn test_reverse_multiple_modifiers() {
-        assert_eq!(
-            key_event_to_string(&KeyEvent::new(
-                KeyCode::Char('a'),
-                KeyModifiers::CONTROL | KeyModifiers::ALT
-            )),
-            "ctrl-alt-a".to_string()
-        );
-    }
-
-    #[test]
-    fn test_invalid_keys() {
-        assert!(parse_key_event("invalid-key").is_err());
-        assert!(parse_key_event("ctrl-invalid-key").is_err());
-    }
-
-    #[test]
-    fn test_case_insensitivity() {
-        assert_eq!(
-            parse_key_event("CTRL-a").unwrap(),
-            KeyEvent::new(KeyCode::Char('a'), KeyModifiers::CONTROL)
-        );
-
-        assert_eq!(
-            parse_key_event("AlT-eNtEr").unwrap(),
-            KeyEvent::new(KeyCode::Enter, KeyModifiers::ALT)
-        );
-    }
 }

crates/television/config/keybindings.rs

@@ -0,0 +1,286 @@
+use crate::action::Action;
+use crate::event::{convert_raw_event_to_key, Key};
+use crate::television::Mode;
+use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
+use derive_deref::{Deref, DerefMut};
+use serde::{Deserialize, Deserializer};
+use std::collections::HashMap;
+
+#[derive(Clone, Debug, Default, Deref, DerefMut)]
+pub struct KeyBindings(pub config::Map<Mode, config::Map<Action, Key>>);
+
+impl<'de> Deserialize<'de> for KeyBindings {
+    fn deserialize<D>(deserializer: D) -> color_eyre::Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let parsed_map =
+            HashMap::<Mode, HashMap<Action, String>>::deserialize(
+                deserializer,
+            )?;
+
+        let keybindings = parsed_map
+            .into_iter()
+            .map(|(mode, inner_map)| {
+                let converted_inner_map = inner_map
+                    .into_iter()
+                    .map(|(cmd, key_str)| (cmd, parse_key(&key_str).unwrap()))
+                    .collect();
+                (mode, converted_inner_map)
+            })
+            .collect();
+
+        Ok(KeyBindings(keybindings))
+    }
+}
+
+pub fn parse_key_event(raw: &str) -> color_eyre::Result<KeyEvent, String> {
+    let raw_lower = raw.to_ascii_lowercase();
+    let (remaining, modifiers) = extract_modifiers(&raw_lower);
+    parse_key_code_with_modifiers(remaining, modifiers)
+}
+
+fn extract_modifiers(raw: &str) -> (&str, KeyModifiers) {
+    let mut modifiers = KeyModifiers::empty();
+    let mut current = raw;
+
+    loop {
+        match current {
+            rest if rest.starts_with("ctrl-") => {
+                modifiers.insert(KeyModifiers::CONTROL);
+                current = &rest[5..];
+            }
+            rest if rest.starts_with("alt-") => {
+                modifiers.insert(KeyModifiers::ALT);
+                current = &rest[4..];
+            }
+            rest if rest.starts_with("shift-") => {
+                modifiers.insert(KeyModifiers::SHIFT);
+                current = &rest[6..];
+            }
+            _ => break, // break out of the loop if no known prefix is detected
+        };
+    }
+
+    (current, modifiers)
+}
+
+fn parse_key_code_with_modifiers(
+    raw: &str,
+    mut modifiers: KeyModifiers,
+) -> color_eyre::Result<KeyEvent, String> {
+    let c = match raw {
+        "esc" => KeyCode::Esc,
+        "enter" => KeyCode::Enter,
+        "left" => KeyCode::Left,
+        "right" => KeyCode::Right,
+        "up" => KeyCode::Up,
+        "down" => KeyCode::Down,
+        "home" => KeyCode::Home,
+        "end" => KeyCode::End,
+        "pageup" => KeyCode::PageUp,
+        "pagedown" => KeyCode::PageDown,
+        "backtab" => {
+            modifiers.insert(KeyModifiers::SHIFT);
+            KeyCode::BackTab
+        }
+        "backspace" => KeyCode::Backspace,
+        "delete" => KeyCode::Delete,
+        "insert" => KeyCode::Insert,
+        "f1" => KeyCode::F(1),
+        "f2" => KeyCode::F(2),
+        "f3" => KeyCode::F(3),
+        "f4" => KeyCode::F(4),
+        "f5" => KeyCode::F(5),
+        "f6" => KeyCode::F(6),
+        "f7" => KeyCode::F(7),
+        "f8" => KeyCode::F(8),
+        "f9" => KeyCode::F(9),
+        "f10" => KeyCode::F(10),
+        "f11" => KeyCode::F(11),
+        "f12" => KeyCode::F(12),
+        "space" => KeyCode::Char(' '),
+        "hyphen" | "minus" => KeyCode::Char('-'),
+        "tab" => KeyCode::Tab,
+        c if c.len() == 1 => {
+            let mut c = c.chars().next().unwrap();
+            if modifiers.contains(KeyModifiers::SHIFT) {
+                c = c.to_ascii_uppercase();
+            }
+            KeyCode::Char(c)
+        }
+        _ => return Err(format!("Unable to parse {raw}")),
+    };
+    Ok(KeyEvent::new(c, modifiers))
+}
+
+#[allow(dead_code)]
+pub fn key_event_to_string(key_event: &KeyEvent) -> String {
+    let char;
+    let key_code = match key_event.code {
+        KeyCode::Backspace => "backspace",
+        KeyCode::Enter => "enter",
+        KeyCode::Left => "left",
+        KeyCode::Right => "right",
+        KeyCode::Up => "up",
+        KeyCode::Down => "down",
+        KeyCode::Home => "home",
+        KeyCode::End => "end",
+        KeyCode::PageUp => "pageup",
+        KeyCode::PageDown => "pagedown",
+        KeyCode::Tab => "tab",
+        KeyCode::BackTab => "backtab",
+        KeyCode::Delete => "delete",
+        KeyCode::Insert => "insert",
+        KeyCode::F(c) => {
+            char = format!("f({c})");
+            &char
+        }
+        KeyCode::Char(' ') => "space",
+        KeyCode::Char(c) => {
+            char = c.to_string();
+            &char
+        }
+        KeyCode::Esc => "esc",
+        KeyCode::Null
+        | KeyCode::CapsLock
+        | KeyCode::Menu
+        | KeyCode::ScrollLock
+        | KeyCode::Media(_)
+        | KeyCode::NumLock
+        | KeyCode::PrintScreen
+        | KeyCode::Pause
+        | KeyCode::KeypadBegin
+        | KeyCode::Modifier(_) => "",
+    };
+
+    let mut modifiers = Vec::with_capacity(3);
+
+    if key_event.modifiers.intersects(KeyModifiers::CONTROL) {
+        modifiers.push("ctrl");
+    }
+
+    if key_event.modifiers.intersects(KeyModifiers::SHIFT) {
+        modifiers.push("shift");
+    }
+
+    if key_event.modifiers.intersects(KeyModifiers::ALT) {
+        modifiers.push("alt");
+    }
+
+    let mut key = modifiers.join("-");
+
+    if !key.is_empty() {
+        key.push('-');
+    }
+    key.push_str(key_code);
+
+    key
+}
+
+pub fn parse_key(raw: &str) -> color_eyre::Result<Key, String> {
+    if raw.chars().filter(|c| *c == '>').count()
+        != raw.chars().filter(|c| *c == '<').count()
+    {
+        return Err(format!("Unable to parse `{raw}`"));
+    }
+    let raw = if raw.contains("><") {
+        raw
+    } else {
+        let raw = raw.strip_prefix('<').unwrap_or(raw);
+        let raw = raw.strip_suffix('>').unwrap_or(raw);
+        raw
+    };
+    let key_event = parse_key_event(raw)?;
+    Ok(convert_raw_event_to_key(key_event))
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_simple_keys() {
+        assert_eq!(
+            parse_key_event("a").unwrap(),
+            KeyEvent::new(KeyCode::Char('a'), KeyModifiers::empty())
+        );
+
+        assert_eq!(
+            parse_key_event("enter").unwrap(),
+            KeyEvent::new(KeyCode::Enter, KeyModifiers::empty())
+        );
+
+        assert_eq!(
+            parse_key_event("esc").unwrap(),
+            KeyEvent::new(KeyCode::Esc, KeyModifiers::empty())
+        );
+    }
+
+    #[test]
+    fn test_with_modifiers() {
+        assert_eq!(
+            parse_key_event("ctrl-a").unwrap(),
+            KeyEvent::new(KeyCode::Char('a'), KeyModifiers::CONTROL)
+        );
+
+        assert_eq!(
+            parse_key_event("alt-enter").unwrap(),
+            KeyEvent::new(KeyCode::Enter, KeyModifiers::ALT)
+        );
+
+        assert_eq!(
+            parse_key_event("shift-esc").unwrap(),
+            KeyEvent::new(KeyCode::Esc, KeyModifiers::SHIFT)
+        );
+    }
+
+    #[test]
+    fn test_multiple_modifiers() {
+        assert_eq!(
+            parse_key_event("ctrl-alt-a").unwrap(),
+            KeyEvent::new(
+                KeyCode::Char('a'),
+                KeyModifiers::CONTROL | KeyModifiers::ALT
+            )
+        );
+
+        assert_eq!(
+            parse_key_event("ctrl-shift-enter").unwrap(),
+            KeyEvent::new(
+                KeyCode::Enter,
+                KeyModifiers::CONTROL | KeyModifiers::SHIFT
+            )
+        );
+    }
+
+    #[test]
+    fn test_reverse_multiple_modifiers() {
+        assert_eq!(
+            key_event_to_string(&KeyEvent::new(
+                KeyCode::Char('a'),
+                KeyModifiers::CONTROL | KeyModifiers::ALT
+            )),
+            "ctrl-alt-a".to_string()
+        );
+    }
+
+    #[test]
+    fn test_invalid_keys() {
+        assert!(parse_key_event("invalid-key").is_err());
+        assert!(parse_key_event("ctrl-invalid-key").is_err());
+    }
+
+    #[test]
+    fn test_case_insensitivity() {
+        assert_eq!(
+            parse_key_event("CTRL-a").unwrap(),
+            KeyEvent::new(KeyCode::Char('a'), KeyModifiers::CONTROL)
+        );
+
+        assert_eq!(
+            parse_key_event("AlT-eNtEr").unwrap(),
+            KeyEvent::new(KeyCode::Enter, KeyModifiers::ALT)
+        );
+    }
+}

crates/television/config/previewers.rs

@@ -0,0 +1,75 @@
+use config::ValueKind;
+use serde::Deserialize;
+use std::collections::HashMap;
+use television_previewers::previewers;
+use television_previewers::previewers::PreviewerConfig;
+
+#[derive(Clone, Debug, Deserialize, Default)]
+pub struct PreviewersConfig {
+    #[serde(default)]
+    pub basic: BasicPreviewerConfig,
+    #[serde(default)]
+    pub directory: DirectoryPreviewerConfig,
+    pub file: FilePreviewerConfig,
+    #[serde(default)]
+    pub env_var: EnvVarPreviewerConfig,
+}
+
+impl From<PreviewersConfig> for PreviewerConfig {
+    fn from(val: PreviewersConfig) -> Self {
+        PreviewerConfig::default()
+            .file(previewers::FilePreviewerConfig::new(val.file.theme.clone()))
+    }
+}
+
+impl From<PreviewersConfig> for ValueKind {
+    fn from(val: PreviewersConfig) -> Self {
+        let mut m = HashMap::new();
+        m.insert(String::from("basic"), val.basic.into());
+        m.insert(String::from("directory"), val.directory.into());
+        m.insert(String::from("file"), val.file.into());
+        m.insert(String::from("env_var"), val.env_var.into());
+        ValueKind::Table(m)
+    }
+}
+
+#[derive(Clone, Debug, Deserialize, Default)]
+pub struct BasicPreviewerConfig {}
+
+impl From<BasicPreviewerConfig> for ValueKind {
+    fn from(_val: BasicPreviewerConfig) -> Self {
+        ValueKind::Table(HashMap::new())
+    }
+}
+
+#[derive(Clone, Debug, Deserialize, Default)]
+pub struct DirectoryPreviewerConfig {}
+
+impl From<DirectoryPreviewerConfig> for ValueKind {
+    fn from(_val: DirectoryPreviewerConfig) -> Self {
+        ValueKind::Table(HashMap::new())
+    }
+}
+
+#[derive(Clone, Debug, Deserialize, Default)]
+pub struct FilePreviewerConfig {
+    //pub max_file_size: u64,
+    pub theme: String,
+}
+
+impl From<FilePreviewerConfig> for ValueKind {
+    fn from(val: FilePreviewerConfig) -> Self {
+        let mut m = HashMap::new();
+        m.insert(String::from("theme"), ValueKind::String(val.theme).into());
+        ValueKind::Table(m)
+    }
+}
+
+#[derive(Clone, Debug, Deserialize, Default)]
+pub struct EnvVarPreviewerConfig {}
+
+impl From<EnvVarPreviewerConfig> for ValueKind {
+    fn from(_val: EnvVarPreviewerConfig) -> Self {
+        ValueKind::Table(HashMap::new())
+    }
+}

crates/television/config/styles.rs

@@ -0,0 +1,194 @@
+use crate::television::Mode;
+use derive_deref::{Deref, DerefMut};
+use ratatui::prelude::{Color, Modifier, Style};
+use serde::{Deserialize, Deserializer};
+use std::collections::HashMap;
+
+#[derive(Clone, Debug, Default, Deref, DerefMut)]
+pub struct Styles(pub HashMap<Mode, HashMap<String, Style>>);
+
+impl<'de> Deserialize<'de> for Styles {
+    fn deserialize<D>(deserializer: D) -> color_eyre::Result<Self, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let parsed_map =
+            HashMap::<Mode, HashMap<String, String>>::deserialize(
+                deserializer,
+            )?;
+
+        let styles = parsed_map
+            .into_iter()
+            .map(|(mode, inner_map)| {
+                let converted_inner_map = inner_map
+                    .into_iter()
+                    .map(|(str, style)| (str, parse_style(&style)))
+                    .collect();
+                (mode, converted_inner_map)
+            })
+            .collect();
+
+        Ok(Styles(styles))
+    }
+}
+
+pub fn parse_style(line: &str) -> Style {
+    let (foreground, background) =
+        line.split_at(line.to_lowercase().find("on ").unwrap_or(line.len()));
+    let foreground = process_color_string(foreground);
+    let background = process_color_string(&background.replace("on ", ""));
+
+    let mut style = Style::default();
+    if let Some(fg) = parse_color(&foreground.0) {
+        style = style.fg(fg);
+    }
+    if let Some(bg) = parse_color(&background.0) {
+        style = style.bg(bg);
+    }
+    style = style.add_modifier(foreground.1 | background.1);
+    style
+}
+
+pub fn process_color_string(color_str: &str) -> (String, Modifier) {
+    let color = color_str
+        .replace("grey", "gray")
+        .replace("bright ", "")
+        .replace("bold ", "")
+        .replace("underline ", "")
+        .replace("inverse ", "");
+
+    let mut modifiers = Modifier::empty();
+    if color_str.contains("underline") {
+        modifiers |= Modifier::UNDERLINED;
+    }
+    if color_str.contains("bold") {
+        modifiers |= Modifier::BOLD;
+    }
+    if color_str.contains("inverse") {
+        modifiers |= Modifier::REVERSED;
+    }
+
+    (color, modifiers)
+}
+
+#[allow(clippy::cast_possible_truncation)]
+pub fn parse_color(s: &str) -> Option<Color> {
+    let s = s.trim_start();
+    let s = s.trim_end();
+    if s.contains("bright color") {
+        let s = s.trim_start_matches("bright ");
+        let c = s
+            .trim_start_matches("color")
+            .parse::<u8>()
+            .unwrap_or_default();
+        Some(Color::Indexed(c.wrapping_shl(8)))
+    } else if s.contains("color") {
+        let c = s
+            .trim_start_matches("color")
+            .parse::<u8>()
+            .unwrap_or_default();
+        Some(Color::Indexed(c))
+    } else if s.contains("gray") {
+        let c = 232
+            + s.trim_start_matches("gray")
+                .parse::<u8>()
+                .unwrap_or_default();
+        Some(Color::Indexed(c))
+    } else if s.contains("rgb") {
+        let red =
+            (s.as_bytes()[3] as char).to_digit(10).unwrap_or_default() as u8;
+        let green =
+            (s.as_bytes()[4] as char).to_digit(10).unwrap_or_default() as u8;
+        let blue =
+            (s.as_bytes()[5] as char).to_digit(10).unwrap_or_default() as u8;
+        let c = 16 + red * 36 + green * 6 + blue;
+        Some(Color::Indexed(c))
+    } else if s == "bold black" {
+        Some(Color::Indexed(8))
+    } else if s == "bold red" {
+        Some(Color::Indexed(9))
+    } else if s == "bold green" {
+        Some(Color::Indexed(10))
+    } else if s == "bold yellow" {
+        Some(Color::Indexed(11))
+    } else if s == "bold blue" {
+        Some(Color::Indexed(12))
+    } else if s == "bold magenta" {
+        Some(Color::Indexed(13))
+    } else if s == "bold cyan" {
+        Some(Color::Indexed(14))
+    } else if s == "bold white" {
+        Some(Color::Indexed(15))
+    } else if s == "black" {
+        Some(Color::Indexed(0))
+    } else if s == "red" {
+        Some(Color::Indexed(1))
+    } else if s == "green" {
+        Some(Color::Indexed(2))
+    } else if s == "yellow" {
+        Some(Color::Indexed(3))
+    } else if s == "blue" {
+        Some(Color::Indexed(4))
+    } else if s == "magenta" {
+        Some(Color::Indexed(5))
+    } else if s == "cyan" {
+        Some(Color::Indexed(6))
+    } else if s == "white" {
+        Some(Color::Indexed(7))
+    } else {
+        None
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_parse_style_default() {
+        let style = parse_style("");
+        pretty_assertions::assert_eq!(style, Style::default());
+    }
+
+    #[test]
+    fn test_parse_style_foreground() {
+        let style = parse_style("red");
+        pretty_assertions::assert_eq!(style.fg, Some(Color::Indexed(1)));
+    }
+
+    #[test]
+    fn test_parse_style_background() {
+        let style = parse_style("on blue");
+        pretty_assertions::assert_eq!(style.bg, Some(Color::Indexed(4)));
+    }
+
+    #[test]
+    fn test_parse_style_modifiers() {
+        let style = parse_style("underline red on blue");
+        pretty_assertions::assert_eq!(style.fg, Some(Color::Indexed(1)));
+        pretty_assertions::assert_eq!(style.bg, Some(Color::Indexed(4)));
+    }
+
+    #[test]
+    fn test_process_color_string() {
+        let (color, modifiers) =
+            process_color_string("underline bold inverse gray");
+        pretty_assertions::assert_eq!(color, "gray");
+        assert!(modifiers.contains(Modifier::UNDERLINED));
+        assert!(modifiers.contains(Modifier::BOLD));
+        assert!(modifiers.contains(Modifier::REVERSED));
+    }
+
+    #[test]
+    fn test_parse_color_rgb() {
+        let color = parse_color("rgb123");
+        let expected = 16 + 36 + 2 * 6 + 3;
+        pretty_assertions::assert_eq!(color, Some(Color::Indexed(expected)));
+    }
+
+    #[test]
+    fn test_parse_color_unknown() {
+        let color = parse_color("unknown");
+        pretty_assertions::assert_eq!(color, None);
+    }
+}

crates/television/config/ui.rs

@@ -0,0 +1,35 @@
+use config::ValueKind;
+use serde::Deserialize;
+use std::collections::HashMap;
+
+const DEFAULT_UI_SCALE: u16 = 90;
+
+#[derive(Clone, Debug, Deserialize)]
+pub struct UiConfig {
+    pub use_nerd_font_icons: bool,
+    pub ui_scale: u16,
+}
+
+impl Default for UiConfig {
+    fn default() -> Self {
+        Self {
+            use_nerd_font_icons: false,
+            ui_scale: DEFAULT_UI_SCALE,
+        }
+    }
+}
+
+impl From<UiConfig> for ValueKind {
+    fn from(val: UiConfig) -> Self {
+        let mut m = HashMap::new();
+        m.insert(
+            String::from("use_nerd_font_icons"),
+            ValueKind::Boolean(val.use_nerd_font_icons).into(),
+        );
+        m.insert(
+            String::from("ui_scale"),
+            ValueKind::U64(val.ui_scale.into()).into(),
+        );
+        ValueKind::Table(m)
+    }
+}