mod new_navigation;
mod update_navigation;
mod view_navigation;
mod view_navigation_button;

use new_navigation::new_navigation;
use update_navigation::update_navigation;
use view_navigation::view_navigation;
use view_navigation_button::view_navigation_button;

use std::fmt::Debug;

use iced::Element;

use crate::traits::{Component, Viewable};

#[derive(Clone, Debug)]
pub struct Navigation<TOption> {
    options_before_active: Vec<TOption>,
    active_option: Option<TOption>,
    options_after_active: Vec<TOption>,
}

#[derive(Clone, Debug)]
pub enum Message<TOption> {
    SelectNext,
    SelectOption(TOption),
    SelectPrev,
    SetOptions(Vec<TOption>),
}

pub enum Action<TOption> {
    SelectOption(TOption),
    None,
}

impl<TOption: Clone + Debug + PartialEq> Navigation<TOption> {
    pub fn new(active_option: Option<TOption>, options: Vec<TOption>) -> Self {
        new_navigation(active_option, options)
    }
}

impl<'a, TOption> Navigation<TOption>
where
    TOption: Clone + PartialEq + Into<Element<'a, Message<TOption>>>,
{
    pub fn button(&'a self, option: &'a TOption) -> Element<'a, Message<TOption>> {
        view_navigation_button(self, option)
    }
}

impl<'a, TOption> Viewable<'a, Message<TOption>> for Navigation<TOption>
where
    TOption: Clone + PartialEq + Into<Element<'a, Message<TOption>>>,
{
    fn view(&'a self) -> iced::Element<'a, Message<TOption>> {
        view_navigation(self)
    }
}

impl<'a, TOption> Component<'a, Message<TOption>, Action<TOption>> for Navigation<TOption>
where
    TOption: Clone + PartialEq + Into<Element<'a, Message<TOption>>>,
{
    fn update(&mut self, message: Message<TOption>) -> Action<TOption> {
        update_navigation(self, message)
    }
}