use super::editor::TextEditor;
use crate::app::tab::Tab;

impl TextEditor {
    pub fn get_active_tab(&self) -> Option<&Tab> {
        self.tabs.get(self.active_tab_index)
    }

    pub fn get_active_tab_mut(&mut self) -> Option<&mut Tab> {
        self.tabs.get_mut(self.active_tab_index)
    }

    pub fn add_new_tab(&mut self) {
        self.tab_counter += 1;
        self.tabs.push(Tab::new_empty(self.tab_counter));
        self.active_tab_index = self.tabs.len() - 1;
        if self.show_find && !self.find_query.is_empty() {
            self.update_find_matches();
        }
        self.text_needs_processing = true;
    }

    pub fn close_tab(&mut self, tab_index: usize) {
        if self.tabs.len() > 1 && tab_index < self.tabs.len() {
            self.tabs.remove(tab_index);
            if self.active_tab_index >= self.tabs.len() {
                self.active_tab_index = self.tabs.len() - 1;
            } else if self.active_tab_index > tab_index {
                self.active_tab_index -= 1;
            }
            if self.show_find && !self.find_query.is_empty() {
                self.update_find_matches();
            }
            self.text_needs_processing = true;
        }
    }

    pub fn switch_to_tab(&mut self, tab_index: usize) {
        if tab_index < self.tabs.len() {
            self.active_tab_index = tab_index;
            if self.show_find && !self.find_query.is_empty() {
                self.update_find_matches();
            }
            self.text_needs_processing = true;
        }
    }
}