feat: input scrollbar + structuring the project

1 files changed, 0 insertions, 255 deletions

diff --git a/src/ui.rs b/src/ui.rs
deleted file mode 100644
index 13b7b82..0000000
--- a/src/ui.rs
+++ /dev/null
@@ -1,255 +0,0 @@
-use crate::app::App;
-use color_eyre::Result;
-use ratatui::{
-    crossterm::event::{self, Event, KeyCode, KeyEventKind},
-    layout::{Constraint, Layout, Position},
-    style::{Color, Style, Stylize},
-    text::{Line, Span, Text},
-    widgets::{
-        Block, List, ListItem, Paragraph, Scrollbar, ScrollbarOrientation, ScrollbarState, Wrap,
-    },
-    DefaultTerminal, Frame,
-};
-
-pub struct Ui {
-    input: String,
-    input_mode: InputMode,
-    character_index: usize, // Cursor index in 1D input
-    app: App,
-    scroll_offset_input: usize,
-    scroll_offset_messages: usize,
-}
-
-pub enum InputMode {
-    Normal,
-    Editing,
-}
-
-impl Ui {
-    pub fn new(app: App) -> Self {
-        Self {
-            input: String::new(),
-            input_mode: InputMode::Normal,
-            character_index: 0,
-            app,
-            scroll_offset_input: 0,
-            scroll_offset_messages: 0,
-        }
-    }
-
-    fn move_cursor_left(&mut self) {
-        let cursor_moved_left = self.character_index.saturating_sub(1);
-        self.character_index = self.clamp_cursor(cursor_moved_left);
-    }
-
-    fn move_cursor_right(&mut self) {
-        let cursor_moved_right = self.character_index.saturating_add(1);
-        self.character_index = self.clamp_cursor(cursor_moved_right);
-    }
-
-    fn enter_char(&mut self, new_char: char) {
-        let index = self.byte_index();
-        self.input.insert(index, new_char);
-        self.move_cursor_right();
-    }
-
-    fn byte_index(&self) -> usize {
-        self.input
-            .char_indices()
-            .map(|(i, _)| i)
-            .nth(self.character_index)
-            .unwrap_or(self.input.len())
-    }
-
-    fn delete_char(&mut self) {
-        if self.character_index != 0 {
-            // Method "remove" is not used on the saved text for deleting the selected char.
-            // Reason: Using remove on String works on bytes instead of the chars.
-            // Using remove would require special care because of char boundaries.
-
-            let current_index = self.character_index;
-            let from_left_to_current_index = current_index - 1;
-
-            // Getting all characters before the selected character.
-            let before_char_to_delete = self.input.chars().take(from_left_to_current_index);
-            // Getting all characters after selected character.
-            let after_char_to_delete = self.input.chars().skip(current_index);
-
-            // Put all characters together except the selected one.
-            // By leaving the selected one out, it is forgotten and therefore deleted.
-            self.input = before_char_to_delete.chain(after_char_to_delete).collect();
-            self.move_cursor_left();
-        }
-    }
-
-    // Limit the character_index between 0 and inputfield characters number
-    fn clamp_cursor(&self, new_cursor_pos: usize) -> usize {
-        new_cursor_pos.clamp(0, self.input.chars().count())
-    }
-
-    fn reset_char_index(&mut self) {
-        self.character_index = 0;
-    }
-
-    // Send the message to the LLM API when "enter" pressed
-    fn submit_message(&mut self) {
-        if self.input.len() > 0 {
-            self.input_mode = InputMode::Normal;
-            self.app.send_message(self.input.clone());
-            self.input.clear();
-            self.reset_char_index();
-        }
-    }
-
-    // Get the max chars allowed per line (not trustable while a line is not completed)
-    fn get_max_chars_per_line(&self, area_width: u16) -> usize {
-        let available_width = area_width.saturating_sub(2); // Retirer les bordures
-        self.input.chars().take(available_width as usize).count()
-    }
-
-    // Get the number of line needed for the inputfield text
-    fn get_nb_line(&self, area_width: u16) -> usize {
-        let available_width = area_width.saturating_sub(2); // Retirer les bordures
-        (self.input.chars().count() as f64 / available_width as f64).ceil() as usize
-    }
-
-    pub fn run(mut self, mut terminal: DefaultTerminal) -> Result<()> {
-        loop {
-            terminal.draw(|frame| self.draw(frame))?;
-
-            if let Event::Key(key) = event::read()? {
-                match self.input_mode {
-                    InputMode::Normal => match key.code {
-                        KeyCode::Char('e') => {
-                            self.input_mode = InputMode::Editing;
-                        }
-                        KeyCode::Char('q') => return Ok(()),
-                        _ => {}
-                    },
-                    InputMode::Editing if key.kind == KeyEventKind::Press => match key.code {
-                        KeyCode::Enter => self.submit_message(),
-                        KeyCode::Char(to_insert) => self.enter_char(to_insert),
-                        KeyCode::Backspace => self.delete_char(),
-                        KeyCode::Left => self.move_cursor_left(),
-                        KeyCode::Right => self.move_cursor_right(),
-                        KeyCode::Esc => self.input_mode = InputMode::Normal,
-                        KeyCode::Up => {
-                            if self.scroll_offset_messages > 0 {
-                                self.scroll_offset_messages -= 1;
-                            }
-                        }
-                        KeyCode::Down => {
-                            // TODO: WTF
-                            let message_count = self.app.messages.len();
-                            if self.scroll_offset_messages < message_count.saturating_sub(1) {
-                                self.scroll_offset_messages += 1;
-                            }
-                        }
-
-                        _ => {}
-                    },
-                    InputMode::Editing => {}
-                }
-            }
-        }
-    }
-
-    fn draw(&self, frame: &mut Frame) {
-        let vertical = Layout::vertical([
-            Constraint::Length(1),
-            Constraint::Min(10),
-            Constraint::Length(5),
-        ]);
-        let [help_area, messages_area, input_area] = vertical.areas(frame.area());
-
-        let (msg, style) = match self.input_mode {
-            InputMode::Normal => (
-                vec![
-                    "Press ".into(),
-                    "q".bold(),
-                    " to exit, ".into(),
-                    "e".bold(),
-                    " to start editing.".bold(),
-                ],
-                Style::default(),
-            ),
-            InputMode::Editing => (
-                vec![
-                    "Press ".into(),
-                    "Esc".bold(),
-                    " to stop editing, ".into(),
-                    "Enter".bold(),
-                    " to send the message to Néo AI".into(),
-                ],
-                Style::default(),
-            ),
-        };
-        let text = Text::from(Line::from(msg)).patch_style(style);
-        let help_message = Paragraph::new(text);
-        frame.render_widget(help_message, help_area);
-
-        let input = Paragraph::new(self.input.as_str())
-            .style(match self.input_mode {
-                InputMode::Normal => Style::default(),
-                InputMode::Editing => Style::default().fg(Color::Yellow),
-            })
-            .block(Block::bordered().title("Input"))
-            .wrap(Wrap { trim: false });
-        frame.render_widget(input, input_area);
-
-        let nb_line = self.get_nb_line(input_area.width);
-        let max_char = self.get_max_chars_per_line(input_area.width);
-
-        let cursor_y = if nb_line > 1 {
-            (self.character_index / max_char) + 1
-        } else {
-            1
-        };
-        let cursor_x = if nb_line > 1 {
-            self.character_index % max_char
-        } else {
-            self.character_index
-        };
-
-        match self.input_mode {
-            // Hide the cursor. `Frame` does this by default, so we don't need to do anything here
-            InputMode::Normal => {}
-
-            // Make the cursor visible and ask ratatui to put it at the specified coordinates after
-            // rendering
-            #[allow(clippy::cast_possible_truncation)]
-            InputMode::Editing => frame.set_cursor_position(Position::new(
-                // Draw the cursor at the current position in the input field.
-                // This position is can be controlled via the left and right arrow key
-                input_area.x + cursor_x as u16 + 1,
-                input_area.y + cursor_y as u16,
-            )),
-        }
-        let mut scrollbar_state_input = ScrollbarState::new(self.get_nb_line(input_area.width))
-            .position(self.scroll_offset_input);
-        let scrollbar_input = Scrollbar::new(ScrollbarOrientation::VerticalRight);
-        frame.render_stateful_widget(scrollbar_input, input_area, &mut scrollbar_state_input);
-
-        let messages: Vec<ListItem> = self
-            .app
-            .messages
-            .iter()
-            .map(|m| {
-                let content = Line::from(Span::raw(format!("{m}")));
-                ListItem::new(content)
-            })
-            .collect();
-        let messages = List::new(messages).block(Block::bordered().title("Chat with Néo AI"));
-        frame.render_widget(messages, messages_area);
-
-        let message_count = self.app.messages.len();
-        let mut scrollbar_state_messages =
-            ScrollbarState::new(message_count).position(self.scroll_offset_messages);
-        let scrollbar_messages = Scrollbar::new(ScrollbarOrientation::VerticalRight);
-        frame.render_stateful_widget(
-            scrollbar_messages,
-            messages_area,
-            &mut scrollbar_state_messages,
-        );
-    }
-}