use gtk::prelude::*;
use super::state::{View, ViewManager};
use std::rc::Rc;

pub struct Welcome {
    vm : Rc<ViewManager>
}

impl View for Welcome {
    fn name(&self) -> &str {
        "welcome"
    }

    fn set_vm(&mut self, vm : Rc<ViewManager>) {
        self.vm = vm
    }

    fn make_current(&self) -> gtk::Box {
        let center = gtk::Box::new(gtk::Orientation::Vertical, 10);
        let main = gtk::Box::new(gtk::Orientation::Horizontal, 10);
        let gen_button = gtk::Button::with_label("Generate");
        let merge_button = gtk::Button::with_label("Merge");
        let load_button = gtk::Button::with_label("Load");

        main.pack_start(&gen_button,   true, false, 10);
        main.pack_start(&merge_button, true, false, 10);
        main.pack_start(&load_button,  true, false, 10);

        center.pack_start(&main, true, false, 0);

        let vm = Rc::clone(&self.vm);
        gen_button.connect_clicked(move |_| {
            vm.set_current_view("generate");
        });

        center
    }
}

impl Welcome {
    pub fn new() -> Self {
        Self { vm : Rc::new(ViewManager::empty()) }
    }
}