Refactor codebase for consistency and readability

- Standardize array and vector formatting for clarity.
- Adjust spacing and indentation in examples and TUI code.
- Ensure proper newline usage across files (e.g., LICENSE, TOML files, etc.).
- Simplify `.to_string()` and `.ok()` calls for brevity.

.pre-commit-config.yaml

@@ -0,0 +1,34 @@
+# Pre-commit hooks configuration
+# See https://pre-commit.com for more information
+
+repos:
+  # General file checks
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v5.0.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-yaml
+      - id: check-toml
+      - id: check-merge-conflict
+      - id: check-added-large-files
+        args: ['--maxkb=1000']
+      - id: mixed-line-ending
+
+  # Rust formatting
+  - repo: https://github.com/doublify/pre-commit-rust
+    rev: v1.0
+    hooks:
+      - id: fmt
+        name: cargo fmt
+        description: Format Rust code with rustfmt
+      - id: cargo-check
+        name: cargo check
+        description: Check Rust code compilation
+      - id: clippy
+        name: cargo clippy
+        description: Lint Rust code with clippy
+        args: ['--all-features', '--', '-D', 'warnings']
+
+# Optional: run on all files when config changes
+default_install_hook_types: [pre-commit, pre-push]

CHANGELOG.md

@@ -78,4 +78,4 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - **AUR Package**: Owlen is now available on the Arch User Repository.
 
 ### Changed
-- **Build System**: Switched from OpenSSL to rustls for better cross-platform compatibility.
+- **Build System**: Switched from OpenSSL to rustls for better cross-platform compatibility.

CONTRIBUTING.md

@@ -32,15 +32,14 @@ Unsure where to begin contributing to Owlen? You can start by looking through `g
 The process for submitting a pull request is as follows:
 
 1.  **Fork the repository** and create your branch from `main`.
-2.  **Make your changes.**
-3.  **Ensure the code lints and formats correctly.**
-    - `cargo fmt --all`
-    - `cargo clippy --all -- -D warnings`
+2.  **Set up pre-commit hooks** (see [Development Setup](#development-setup) above). This will automatically format and lint your code.
+3.  **Make your changes.**
 4.  **Run the tests.**
     - `cargo test --all`
-5.  **Add a clear, concise commit message.** We follow the [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/) specification.
-6.  **Push to your fork** and submit a pull request to Owlen's `main` branch.
-7.  **Include a clear description** of the problem and solution. Include the relevant issue number if applicable.
+5.  **Commit your changes.** The pre-commit hooks will automatically run `cargo fmt`, `cargo check`, and `cargo clippy`. If you need to bypass the hooks (not recommended), use `git commit --no-verify`.
+6.  **Add a clear, concise commit message.** We follow the [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/) specification.
+7.  **Push to your fork** and submit a pull request to Owlen's `main` branch.
+8.  **Include a clear description** of the problem and solution. Include the relevant issue number if applicable.
 
 ## Development Setup
 
@@ -52,6 +51,46 @@ cd owlen
 cargo build
 ```
 
+### Pre-commit Hooks
+
+We use [pre-commit](https://pre-commit.com/) to automatically run formatting and linting checks before each commit. This helps maintain code quality and consistency.
+
+**Install pre-commit:**
+
+```sh
+# Arch Linux
+sudo pacman -S pre-commit
+
+# Other Linux/macOS
+pip install pre-commit
+
+# Verify installation
+pre-commit --version
+```
+
+**Setup the hooks:**
+
+```sh
+cd owlen
+pre-commit install
+```
+
+Once installed, the hooks will automatically run on every commit. You can also run them manually:
+
+```sh
+# Run on all files
+pre-commit run --all-files
+
+# Run on staged files only
+pre-commit run
+```
+
+The pre-commit hooks will check:
+- Code formatting (`cargo fmt`)
+- Compilation (`cargo check`)
+- Linting (`cargo clippy --all-features`)
+- General file hygiene (trailing whitespace, EOF newlines, etc.)
+
 ## Coding Style
 
 -   We use `cargo fmt` for automated code formatting. Please run it before committing your changes.

LICENSE

@@ -659,4 +659,3 @@ specific requirements.
 if any, to sign a "copyright disclaimer" for the program, if necessary.
 For more information on this, and how to apply and follow the GNU AGPL, see
 <https://www.gnu.org/licenses/>.
-

PKGBUILD

@@ -47,4 +47,3 @@ package() {
         install -Dm644 "$theme" "$pkgdir/usr/share/$pkgname/themes/$(basename $theme)"
     done
 }
-

crates/owlen-ollama/Cargo.toml

@@ -31,4 +31,4 @@ uuid = { workspace = true }
 async-trait = { workspace = true }
 
 [dev-dependencies]
-tokio-test = { workspace = true }
+tokio-test = { workspace = true }

crates/owlen-tui/src/chat_app.rs

@@ -1171,14 +1171,8 @@ impl ChatApp {
                                 let description =
                                     if self.controller.config().storage.generate_descriptions {
                                         self.status = "Generating description...".to_string();
-                                        match self
-                                            .controller
-                                            .generate_conversation_description()
-                                            .await
-                                        {
-                                            Ok(desc) => Some(desc),
-                                            Err(_) => None,
-                                        }
+                                        (self.controller.generate_conversation_description().await)
+                                            .ok()
                                     } else {
                                         None
                                     };
@@ -1780,7 +1774,7 @@ impl ChatApp {
                 stream,
             }) => {
                 // Step 3: Model loaded, now generating response
-                self.status = format!("Model loaded. Generating response... (streaming)");
+                self.status = "Model loaded. Generating response... (streaming)".to_string();
 
                 self.spawn_stream(response_id, stream);
                 match self.controller.mark_stream_placeholder(response_id, "▌") {

crates/owlen-tui/src/ui.rs

@@ -1149,7 +1149,14 @@ fn render_help(frame: &mut Frame<'_>, app: &ChatApp) {
     frame.render_widget(Clear, area);
 
     let tab_index = app.help_tab_index();
-    let tabs = vec!["Navigation", "Editing", "Visual", "Commands", "Sessions", "Browsers"];
+    let tabs = [
+        "Navigation",
+        "Editing",
+        "Visual",
+        "Commands",
+        "Sessions",
+        "Browsers",
+    ];
 
     // Build tab line
     let mut tab_spans = Vec::new();
@@ -1284,102 +1291,138 @@ fn render_help(frame: &mut Frame<'_>, app: &ChatApp) {
         3 => vec![
             // Commands
             Line::from(""),
-            Line::from(vec![
-                Span::styled("COMMAND MODE", Style::default().add_modifier(Modifier::BOLD).fg(theme.info))
-            ]),
+            Line::from(vec![Span::styled(
+                "COMMAND MODE",
+                Style::default().add_modifier(Modifier::BOLD).fg(theme.info),
+            )]),
             Line::from("  Press ':' to enter command mode, then type one of:"),
             Line::from(""),
-            Line::from(vec![
-                Span::styled("KEYBINDINGS", Style::default().add_modifier(Modifier::BOLD).fg(theme.user_message_role))
-            ]),
+            Line::from(vec![Span::styled(
+                "KEYBINDINGS",
+                Style::default()
+                    .add_modifier(Modifier::BOLD)
+                    .fg(theme.user_message_role),
+            )]),
             Line::from("  Enter         → execute command"),
             Line::from("  Esc           → exit command mode"),
             Line::from("  Tab           → autocomplete suggestion"),
             Line::from("  ↑/↓           → navigate suggestions"),
             Line::from("  Backspace     → delete character"),
             Line::from(""),
-            Line::from(vec![
-                Span::styled("GENERAL", Style::default().add_modifier(Modifier::BOLD).fg(theme.user_message_role))
-            ]),
+            Line::from(vec![Span::styled(
+                "GENERAL",
+                Style::default()
+                    .add_modifier(Modifier::BOLD)
+                    .fg(theme.user_message_role),
+            )]),
             Line::from("  :h, :help          → show this help"),
             Line::from("  :q, :quit          → quit application"),
             Line::from("  :reload          → reload configuration and themes"),
             Line::from(""),
-            Line::from(vec![
-                Span::styled("CONVERSATION", Style::default().add_modifier(Modifier::BOLD).fg(theme.user_message_role))
-            ]),
+            Line::from(vec![Span::styled(
+                "CONVERSATION",
+                Style::default()
+                    .add_modifier(Modifier::BOLD)
+                    .fg(theme.user_message_role),
+            )]),
             Line::from("  :n, :new           → start new conversation"),
             Line::from("  :c, :clear         → clear current conversation"),
             Line::from(""),
-            Line::from(vec![
-                Span::styled("MODEL & THEME", Style::default().add_modifier(Modifier::BOLD).fg(theme.user_message_role))
-            ]),
+            Line::from(vec![Span::styled(
+                "MODEL & THEME",
+                Style::default()
+                    .add_modifier(Modifier::BOLD)
+                    .fg(theme.user_message_role),
+            )]),
             Line::from("  :m, :model         → open model selector"),
             Line::from("  :themes          → open theme selector"),
             Line::from("  :theme <name>    → switch to a specific theme"),
             Line::from(""),
-            Line::from(vec![
-                Span::styled("SESSION MANAGEMENT", Style::default().add_modifier(Modifier::BOLD).fg(theme.user_message_role))
-            ]),
+            Line::from(vec![Span::styled(
+                "SESSION MANAGEMENT",
+                Style::default()
+                    .add_modifier(Modifier::BOLD)
+                    .fg(theme.user_message_role),
+            )]),
             Line::from("  :save [name]       → save current session (with optional name)"),
             Line::from("  :w [name]          → alias for :save"),
             Line::from("  :load, :o, :open   → browse and load saved sessions"),
             Line::from("  :sessions, :ls     → browse saved sessions"),
         ],
-        4 => vec![ // Sessions
+        4 => vec![
+            // Sessions
             Line::from(""),
-            Line::from(vec![
-                Span::styled("SESSION MANAGEMENT", Style::default().add_modifier(Modifier::BOLD).fg(theme.info))
-            ]),
+            Line::from(vec![Span::styled(
+                "SESSION MANAGEMENT",
+                Style::default().add_modifier(Modifier::BOLD).fg(theme.info),
+            )]),
             Line::from(""),
-            Line::from(vec![
-                Span::styled("SAVING SESSIONS", Style::default().add_modifier(Modifier::BOLD).fg(theme.user_message_role))
-            ]),
+            Line::from(vec![Span::styled(
+                "SAVING SESSIONS",
+                Style::default()
+                    .add_modifier(Modifier::BOLD)
+                    .fg(theme.user_message_role),
+            )]),
             Line::from("  :save              → save with auto-generated name"),
             Line::from("  :save my-session   → save with custom name"),
             Line::from("  • AI generates description automatically (configurable)"),
             Line::from("  • Sessions stored in platform-specific directories"),
             Line::from(""),
-            Line::from(vec![
-                Span::styled("LOADING SESSIONS", Style::default().add_modifier(Modifier::BOLD).fg(theme.user_message_role))
-            ]),
+            Line::from(vec![Span::styled(
+                "LOADING SESSIONS",
+                Style::default()
+                    .add_modifier(Modifier::BOLD)
+                    .fg(theme.user_message_role),
+            )]),
             Line::from("  :load, :o, :open   → browse and select session"),
             Line::from("  :sessions, :ls     → browse saved sessions"),
             Line::from(""),
-            Line::from(vec![
-                Span::styled("SESSION BROWSER KEYS", Style::default().add_modifier(Modifier::BOLD).fg(theme.user_message_role))
-            ]),
+            Line::from(vec![Span::styled(
+                "SESSION BROWSER KEYS",
+                Style::default()
+                    .add_modifier(Modifier::BOLD)
+                    .fg(theme.user_message_role),
+            )]),
             Line::from("  j/k or ↑/↓         → navigate sessions"),
             Line::from("  Enter              → load selected session"),
             Line::from("  d                  → delete selected session"),
             Line::from("  Esc                → close browser"),
             Line::from(""),
-            Line::from(vec![
-                Span::styled("STORAGE LOCATIONS", Style::default().add_modifier(Modifier::BOLD).fg(theme.user_message_role))
-            ]),
+            Line::from(vec![Span::styled(
+                "STORAGE LOCATIONS",
+                Style::default()
+                    .add_modifier(Modifier::BOLD)
+                    .fg(theme.user_message_role),
+            )]),
             Line::from("  Linux    → ~/.local/share/owlen/sessions"),
             Line::from("  Windows  → %APPDATA%\\owlen\\sessions"),
             Line::from("  macOS    → ~/Library/Application Support/owlen/sessions"),
             Line::from(""),
-            Line::from(vec![
-                Span::styled("CONTEXT PRESERVATION", Style::default().add_modifier(Modifier::BOLD).fg(theme.assistant_message_role))
-            ]),
+            Line::from(vec![Span::styled(
+                "CONTEXT PRESERVATION",
+                Style::default()
+                    .add_modifier(Modifier::BOLD)
+                    .fg(theme.assistant_message_role),
+            )]),
             Line::from("  • Full conversation history is preserved when saving"),
             Line::from("  • All context is restored when loading a session"),
             Line::from("  • Continue conversations seamlessly across restarts"),
         ],
-        5 => vec![ // Browsers
+        5 => vec![
+            // Browsers
             Line::from(""),
-            Line::from(vec![
-                Span::styled("PROVIDER & MODEL BROWSERS", Style::default().add_modifier(Modifier::BOLD).fg(theme.info))
-            ]),
+            Line::from(vec![Span::styled(
+                "PROVIDER & MODEL BROWSERS",
+                Style::default().add_modifier(Modifier::BOLD).fg(theme.info),
+            )]),
             Line::from("  Enter         → select item"),
             Line::from("  Esc           → close browser"),
             Line::from("  ↑/↓ or j/k    → navigate items"),
             Line::from(""),
-            Line::from(vec![
-                Span::styled("THEME BROWSER", Style::default().add_modifier(Modifier::BOLD).fg(theme.info))
-            ]),
+            Line::from(vec![Span::styled(
+                "THEME BROWSER",
+                Style::default().add_modifier(Modifier::BOLD).fg(theme.info),
+            )]),
             Line::from("  Enter         → apply theme"),
             Line::from("  Esc / q       → close browser"),
             Line::from("  ↑/↓ or j/k    → navigate themes"),
@@ -1430,7 +1473,12 @@ fn render_help(frame: &mut Frame<'_>, app: &ChatApp) {
                 .add_modifier(Modifier::BOLD),
         ),
         Span::raw(":Switch  "),
-        Span::styled("1-6", Style::default().fg(theme.focused_panel_border).add_modifier(Modifier::BOLD)),
+        Span::styled(
+            "1-6",
+            Style::default()
+                .fg(theme.focused_panel_border)
+                .add_modifier(Modifier::BOLD),
+        ),
         Span::raw(":Jump  "),
         Span::styled(
             "Esc/q",

docs/migration-guide.md

@@ -4,13 +4,13 @@ This guide documents breaking changes between versions of Owlen and provides ins
 
 As Owlen is currently in its alpha phase (pre-v1.0), breaking changes may occur more frequently. We will do our best to document them here.
 
---- 
+---
 
 ## Migrating from v0.1.x to v0.2.x (Example)
 
 *This is a template for a future migration. No breaking changes have occurred yet.*
 
-Version 0.2.0 introduces a new configuration structure for providers. 
+Version 0.2.0 introduces a new configuration structure for providers.
 
 ### Configuration File Changes
 

examples/basic_chat.rs

@@ -1,9 +1,9 @@
 // This example demonstrates a basic chat interaction without the TUI.
 
 use owlen_core::model::Model;
+use owlen_core::provider::Provider;
 use owlen_core::session::Session;
 use owlen_ollama::OllamaProvider; // Assuming you have an Ollama provider
-use owlen_core::provider::Provider;
 
 #[tokio::main]
 async fn main() -> Result<(), anyhow::Error> {

examples/custom_provider.rs

@@ -16,10 +16,16 @@ impl Provider for MyCustomProvider {
     }
 
     async fn chat(&self, session: &Session, model: &Model) -> Result<String, anyhow::Error> {
-        println!("Custom provider received chat request for model: {}", model.name);
+        println!(
+            "Custom provider received chat request for model: {}",
+            model.name
+        );
         // In a real implementation, you would send the session data to an API.
         let message_count = session.get_messages().len();
-        Ok(format!("This is a custom response. You have {} messages in your session.", message_count))
+        Ok(format!(
+            "This is a custom response. You have {} messages in your session.",
+            message_count
+        ))
     }
 }
 

examples/session_management.rs

@@ -23,6 +23,8 @@ fn main() {
     println!("\nSession cleared.");
 
     let messages_after_clear = session.get_messages();
-    println!("Messages in session after clear: {}", messages_after_clear.len());
+    println!(
+        "Messages in session after clear: {}",
+        messages_after_clear.len()
+    );
 }
-

themes/default_light.toml

@@ -20,4 +20,4 @@ selection_fg = "black"
 cursor = "#d95f02"
 placeholder = "gray"
 error = "#c0392b"
-info = "green"
+info = "green"

themes/material-light.toml

@@ -20,4 +20,4 @@ selection_fg = "#212121"
 cursor = "#c2185b"
 placeholder = "#90a4ae"
 error = "#d32f2f"
-info = "#388e3c"
+info = "#388e3c"