budget_tracker_tui 1.4.1

A feature rich TUI budget tracker app
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use crate::app::help::get_help_for_mode;
use crate::app::state::{App, AppMode};
use crossterm::event::{KeyCode, KeyEvent};

pub fn handle_help_mode(app: &mut App, key_event: KeyEvent) {
    // Handle Detail View Mode
    if app.mode == AppMode::KeybindingDetail {
        if matches!(
            key_event.code,
            KeyCode::Esc | KeyCode::Enter | KeyCode::Char('q')
        ) {
            app.mode = AppMode::KeybindingsInfo;
        }
        return;
    }

    match key_event.code {
        KeyCode::Esc | KeyCode::Char('q') => {
            let prev = app.previous_mode.unwrap_or(AppMode::Normal);
            app.mode = prev;
            app.previous_mode = None;
        }
        KeyCode::Down => {
            let selected = app.help_table_state.selected().unwrap_or(0);
            let mode = app.previous_mode.unwrap_or(AppMode::Normal);
            let bindings = get_help_for_mode(mode);
            if !bindings.is_empty() {
                let new_selected = (selected + 1).min(bindings.len() - 1);
                app.help_table_state.select(Some(new_selected));
            }
        }
        KeyCode::Up => {
            let selected = app.help_table_state.selected().unwrap_or(0);
            let new_selected = selected.saturating_sub(1);
            app.help_table_state.select(Some(new_selected));
        }
        KeyCode::PageDown => {
            let selected = app.help_table_state.selected().unwrap_or(0);
            let mode = app.previous_mode.unwrap_or(AppMode::Normal);
            let bindings = get_help_for_mode(mode);
            if !bindings.is_empty() {
                let new_selected = (selected + 10).min(bindings.len() - 1);
                app.help_table_state.select(Some(new_selected));
            }
        }
        KeyCode::PageUp => {
            let selected = app.help_table_state.selected().unwrap_or(0);
            let new_selected = selected.saturating_sub(10);
            app.help_table_state.select(Some(new_selected));
        }
        KeyCode::Enter => {
            // Check if current selection has extended details
            let mode = app.previous_mode.unwrap_or(AppMode::Normal);
            let bindings = get_help_for_mode(mode);
            let selected = app.help_table_state.selected().unwrap_or(0);

            if let Some(binding) = bindings.get(selected)
                && binding.extended_description.is_some()
            {
                app.mode = AppMode::KeybindingDetail;
            }
        }
        KeyCode::Char(c) => {
            let mode = app.previous_mode.unwrap_or(AppMode::Normal);
            let bindings = get_help_for_mode(mode);
            if let Some(index) = app
                .type_to_select
                .handle_char(c, &bindings, |item| item.description)
            {
                app.help_table_state.select(Some(index));
            }
        }
        _ => {}
    }
}