// Copyright 2022 Jeremy Wall
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use sycamore::{futures::spawn_local_scoped, prelude::*};
use tracing::{error, info, instrument};

use crate::components::Header;
use crate::{api, routing::Handler as RouteHandler};

#[instrument]
#[component]
pub fn UI<G: Html>(cx: Scope) -> View<G> {
    crate::app_state::State::provide_context(cx);
    api::HttpStore::provide_context(cx, "/api".to_owned());
    info!("Starting UI");

    let view = create_signal(cx, View::empty());
    // FIXME(jwall): We need a way to trigger refreshes when required. Turn this
    // into a create_effect with a refresh signal stored as a context.
    spawn_local_scoped(cx, {
        let store = api::HttpStore::get_from_context(cx);
        let state = crate::app_state::State::get_from_context(cx);
        async move {
            if let Err(err) = api::init_page_state(store.as_ref(), state.as_ref()).await {
                error!(?err);
            };
            // TODO(jwall): This needs to be moved into the RouteHandler
            view.set(view! { cx,
                div(class="app") {
                    Header { }
                    RouteHandler()
                }
            });
        }
    });

    view! { cx, (view.get().as_ref()) }
}