mod installation;
mod usage;

use crate::components::SiteHeader;
pub use installation::*;
use leptos::*;
use leptos_router::{use_location, use_navigate, Outlet};
use thaw::*;
pub use usage::*;

#[component]
pub fn GuidePage() -> impl IntoView {
    let navigate = use_navigate();
    let selected = create_rw_signal({
        let loaction = use_location();
        let mut pathname = loaction.pathname.get_untracked();

        if pathname.starts_with("/thaw/guide/") {
            pathname.drain(12..).collect()
        } else {
            String::new()
        }
    });

    create_effect(move |value| {
        let selected = selected.get();
        if value.is_some() {
            navigate(&format!("/guide/{selected}"), Default::default());
        }
        selected
    });
    view! {
        <Layout position=LayoutPosition::Absolute>
            <SiteHeader/>
            <Layout has_sider=true position=LayoutPosition::Absolute style="top: 64px;">
                <LayoutSider>
                    <Menu value=selected>
                        {
                            gen_guide_menu_data().into_view()
                        }
                    </Menu>
                </LayoutSider>
                <Layout style="padding: 8px 12px 28px; overflow-y: auto;">
                    <Outlet/>
                </Layout>
            </Layout>
        </Layout>
    }
}

pub(crate) struct MenuGroupOption {
    pub label: String,
    pub children: Vec<MenuItemOption>,
}

impl IntoView for MenuGroupOption {
    fn into_view(self) -> View {
        let Self { label, children } = self;
        view! {
            <MenuGroup label=label>
                {
                    children.into_iter().map(|v| v.into_view()).collect_view()
                }
            </MenuGroup>
        }
    }
}

pub(crate) struct MenuItemOption {
    pub label: String,
    pub value: String,
}

impl IntoView for MenuItemOption {
    fn into_view(self) -> View {
        let Self { label, value } = self;
        view! {
            <MenuItem key=value label/>
        }
    }
}

pub(crate) fn gen_guide_menu_data() -> Vec<MenuGroupOption> {
    vec![MenuGroupOption {
        label: "Getting Started".into(),
        children: vec![
            MenuItemOption {
                value: "installation".into(),
                label: "Installation".into(),
            },
            MenuItemOption {
                value: "usage".into(),
                label: "Usage".into(),
            },
        ],
    }]
}