use cursive::Cursive;
use cursive::views::Menubar;
use cursive::views::Dialog;
use cursive::views::EditView;
use cursive::view::Nameable;
use cursive::view::Resizable;
use cursive::menu::MenuTree;
use cursive::menu::MenuItem;

use crate::views::maillist::MaillistView;
use crate::views::main::MainView;
use crate::views::main::MAIN_VIEW_NAME;

/// build the menu bar
pub fn init(siv: &mut Cursive) {
    let menubar = siv.menubar();
    add_main(menubar);
}

fn add_main(bar: &mut Menubar) {
    bar.add_subtree(
        "Muar",
        MenuTree::new()
            .leaf("Query", menu_command_query)
            .delimiter()
            .leaf("Quit", menu_command_quit)
    );
}

fn menu_command_quit(siv: &mut Cursive) {
    siv.quit()
}

fn menu_command_query(siv: &mut Cursive) {
        use crate::util::dialog_for;
        use crate::util::error_dialog_for;

        let edit_view = EditView::new()
            .on_submit(move |siv: &mut Cursive, query: &str| {
                let res = siv.call_on_name(MAIN_VIEW_NAME, move |main_view: &mut MainView| {
                    main_view.add_tab_for_query(query)
                });

                match res {
                    Some(Ok(())) => {
                        siv.pop_layer();
                        info!("Querying went fine: {}", query);
                    },

                    Some(Err(e)) => {
                        siv.pop_layer();
                        error!("Error: {:?}", e);
                        siv.add_layer(error_dialog_for(e));
                    },

                    None => {
                        siv.pop_layer();
                        error!("Failed to get main view");
                        siv.add_layer(dialog_for("Failed to get database connection set up"));
                    },
                }
            })
            .with_name("query");

        siv.add_layer({
            Dialog::around(edit_view)
                .title("Query")
                .min_width(80)
        })
}