use crate::{
    bind, bind_change, bind_value, clone, clone_cb, clone_cb_spawn,
    components::{Binding, Button, Loading, Page, Table, TextInput},
    init,
    util::api_request,
};
use lan_party_core::user::User;
use wasm_bindgen_futures::spawn_local;
use yew::prelude::*;
use yew_hooks::*;

#[function_component(UsersPage)]
pub fn users_page() -> Html {
    let headers = vec!["Username".into(), "Score".into(), "".into()];

    let new_username = use_state(|| String::new());
    let score_edit: UseStateHandle<Option<usize>> = use_state(|| Option::None);
    let current_score = use_state(|| String::new());
    let users = use_state(|| Vec::new());

    init!(users => {
        users.set(api_request::<_, Vec<User>>(reqwasm::http::Method::GET, "/user", Option::<()>::None)
            .await
            .map(|inner| inner.unwrap())
            .unwrap());
    });

    let oncheck = clone_cb_spawn!(score_edit, current_score, users => {
        if let (Some(score_edit), Ok(score)) = (*score_edit, current_score.parse()) {
            let user: &User = &users[score_edit];
            api_request::<_, ()>(reqwasm::http::Method::POST, &format!("/user/{}/score", user.name), Some(score))
                .await
                .unwrap();
            let mut cloned = (*users).clone();
            cloned[score_edit].score = score;
            users.set(cloned);
        }
        score_edit.set(None);
    });

    let onedit = clone_cb!(current_score, score_edit, users => i => move |_| {
        let user: &User = &users[i];
        current_score.set(user.score.to_string());
        score_edit.set(Some(i));
    });

    let ondelete = clone_cb_spawn!(users => i => {
        let user: &User = &users[i];
        api_request::<_, ()>(reqwasm::http::Method::DELETE, &format!("/user/{}", user.name), Option::<()>::None).await.unwrap();
        let cloned = users.iter().cloned().filter(|u| u.name != user.name).collect();
        users.set(cloned);
    });

    let onadd = clone_cb_spawn!(new_username, users => {
        let user = api_request::<String, User>(reqwasm::http::Method::POST, "/user", Some((*new_username).clone())).await.unwrap();
        let mut cloned = (*users).clone();
        cloned.push(user.unwrap());
        users.set(cloned);
    });

    html! {
        <Page>
            <Table headers={headers.clone()} loading=false rows={vec![]}>
                {users.iter().enumerate().map(move |(i, user)| html! {
                    <tr>
                        <td class="whitespace-nowrap px-3 py-4 text-sm text-slate-400">{&user.name}</td>
                        <td class="whitespace-nowrap px-3 text-sm text-slate-400">
                            {if Some(i) == *score_edit.clone() { html! {
                                <>
                                    <span class="inline-block">
                                        <TextInput
                                            class={"mx-2 appearance-none block bg-gray-700 text-slate-400 border border-gray-600 rounded py-2 px-2 w-20 leading-tight focus:outline-none focus:ring-1 focus:ring-gray-500 focus:border-gray-500"}
                                            bind={bind!(current_score)}
                                            />
                                    </span>
                                    <Button icon={"mdi-check"} onclick={oncheck.clone()} />
                                </>
                            }} else { html! {
                                <>
                                    <span class="my-3 w-20">
                                        {user.score}
                                    </span>
                                    <Button icon={"mdi-pencil"} onclick={onedit.clone()(i)} />
                                </>
                            }}}
                        </td>
                        <td class="whitespace-nowrap py-4 text-sm text-slate-400">
                            <Button icon={"mdi-delete"} onclick={ondelete.clone()(i)} />
                        </td>
                    </tr>
                }).collect::<Html>()}
                <tr>
                    <td class="whitespace-nowrap px-3 text-sm text-slate-400">
                        <span class="inline-block">
                            <TextInput
                                class={"mx-2 appearance-none block bg-gray-700 text-slate-400 border border-gray-600 rounded py-2 px-2 w-50 leading-tight focus:outline-none focus:ring-1 focus:ring-gray-500 focus:border-gray-500"}
                                bind={bind!(new_username)}
                                />
                        </span>
                    </td>
                    <td class="whitespace-nowrap px-3 py-4 text-sm text-slate-400"></td>
                    <td class="whitespace-nowrap py-4 text-sm text-slate-400">
                        <Button icon={"mdi-plus"} onclick={onadd} />
                    </td>
                </tr>
            </Table>
        </Page>
    }
}