import React, { createRef, useState, Fragment, FC } from 'react';
import { Layout, Col, Row, Button, Image } from 'antd';
import { EditOutlined, CloseOutlined, AppstoreOutlined } from '@ant-design/icons';
import ConversationList from "@/components/ConversationList";
import Chatbox from "@/components/Chatbox";
import CustomerInfo from "@/components/CustomerInfo";
import ActionTabs from "@/components/ActionTabs";
import { HelpSideBar } from "@/components/Help";
import HeaderComponent from "@/components/HeaderComponent";

import { useDispatch, useSelector } from "react-redux";
import { AppState } from "@/store/typing";
import { UserInfo } from "@/typings/user";
import { actions } from "@/store/actions";

import GlobalModal from '@/components/GlobalModal';
import GlobalDrawer from "@/components/GlobalDrawer";
import BadgeStatus from "@/components/BadgeStatus";
import NetworkError from "@/components/Error/NetworkError";

import { ClientSettings } from "@/typings";

import TYPING_ANIMATION_IMAGE from "@/assets/typing-animation.gif";
import DashBoard from "@/components/DashBoard";

import { user_list } from "@/test/test_state";
import { DEFAULT_AVATAR } from "@/config";
import '@/styles/app.css';


const { Header, Content, Sider } = Layout;

const WINDOW_HEIGHT = global.window.innerHeight;


const UserNameForm = ({ user }: { user: UserInfo | null }) => {
    const [openForm, setFormOpen] = useState<boolean>(false);
    const dispatch = useDispatch();

    if (!user) {
        return null;
    }

    const userInputRef = createRef<HTMLInputElement>();
    const updateName = () => {
        let new_name = userInputRef.current?.value;
        dispatch(actions.updateUserInfo({
            id: user.id,
            name: new_name,
        }));
        setFormOpen(false);
    }
    const avatar = user.avatar || DEFAULT_AVATAR;
    if (!openForm) {
        return (
            <div className="cuscontentCenterHeader">
                <div className="avatar-cus">
                    <img className="conversation-photo" src={avatar} alt="conversation" />
                    <BadgeStatus online={user.online || false}>
                    </BadgeStatus>
                </div>

                <div className="info-cus">
                    <div className="name">{user.name}</div>
                    <div className="address">{user.location}</div>
                </div>
                {
                    user.typing && <Image preview={false} style={{ height: 20 }} src={TYPING_ANIMATION_IMAGE} />
                }<div className="cuscontentCenterHeaderEdit">( <EditOutlined onClick={() => setFormOpen(true)} title={'Thay đổi tên'} /> )</div>
            </div>
        )
    }

    return (
        <Fragment>
            <input type={'text'} size={30} ref={userInputRef} defaultValue={user.name} /> <Button onClick={updateName}>OK</Button>
        </Fragment>
    )
}


function getUserById(user_list: UserInfo[], user_id: string): UserInfo | null {
    let filtered_list = user_list.filter(user => user.id === user_id);
    return filtered_list.length > 0 ? filtered_list[0] : null;
}

const ShowUserSpace = ({openHelp}: {openHelp: () => any}) => {
    // TODO:

    const chatting_with_user = useSelector((state: AppState) => state.chatting_with_user);
    const dispatch = useDispatch();

    let chatting_user_info = getUserById(user_list, chatting_with_user);
    if (!chatting_user_info && user_list.length > 0) {
        // auto show the first user in the list if there
        dispatch(actions.chatWithUser(user_list[0].id));
    }

    // else show the dashboard
    if (!chatting_user_info) {
        return <DashBoard />
    }

    return (
        <Fragment>
            <div className="contentCenterHeader">
                <UserNameForm user={chatting_user_info} />
                <div onClick={openHelp} className="contentCenterHeaderAdmin">
                    <span className="h-title">Trợ giúp admin</span>
                    <AppstoreOutlined className="h-icon" />
                </div>
            </div>

            <div className="contentCenterCt">
                <Row>
                    <Col className="contentCenterCtColLeft" span={12}>
                        {/* add key to force to component to remount when user id change to simplify the component's code*/}
                        <Chatbox key={chatting_user_info.id} user_info={chatting_user_info} />
                    </Col>

                    <Col span={12} className="contentCenterCtColRight">
                        <div className="contentCenterCtColRightItem">
                            <h3 className="contentCenterCtColRightTitle" style={{ fontSize: 16, fontWeight: 'bold' }}>Lựa chọn</h3>

                            <ActionTabs customer_id={chatting_user_info.id} />
                        </div>
                        <div className="contentCenterCtColRightItem">
                            <h3 className="contentCenterCtColRightTitle" style={{ fontSize: 16, fontWeight: 'bold' }}>Thông tin khách hàng</h3>

                            <CustomerInfo user_info={chatting_user_info} />
                        </div>
                    </Col>
                </Row>
            </div>
        </Fragment>
    )
}


const App: FC<{ client_setting: ClientSettings }> = ({ client_setting }) => {

    const HEADER_HEIGHT = 70;
    const [closeHelp, setHelpClose] = useState<boolean>(false);
    const LAYOUT_CLOSED = closeHelp ? { width: 1200, marginLeft: 'auto', marginRight: 'auto' } : { marginTop: HEADER_HEIGHT, height: WINDOW_HEIGHT - HEADER_HEIGHT, overflow: 'auto' };
    const windowWidth = window.innerWidth;

    return (
        <Layout className={'box-chatboard'}>
            <Header style={{ width: '100%' }}>
                <HeaderComponent />
            </Header>
            <Layout className={'content-chatboard'}>
                <Row className={'content-chatboard-row'}>
                    <Col className={'content-chatboard-col'} span={4}>
                        <div className="contentLeft">
                            <ConversationList />
                        </div>
                    </Col>
                    {
                        windowWidth <= 1366 ?
                            <Col className={'content-chatboard-col'} span={20}>
                                <Content className="contentCenter">
                                    <ShowUserSpace openHelp={() => setHelpClose(true)} />
                                </Content>
                            </Col>
                            :
                            <Col className={'content-chatboard-col content-chatboard-col-big'} span={14}>
                                <Content className="contentCenter">
                                    <ShowUserSpace openHelp={() => setHelpClose(true)} />
                                </Content>
                            </Col>
                    }

                    {
                        windowWidth <= 1366 ?
                            (
                                closeHelp &&
                                <div className="fix-ab-ct-right" id="fix-ab-ct-right">
                                    <div className="contentRight" >
                                        <h2 className="contentRightHeader">Trợ giúp Admin <CloseOutlined onClick={() => setHelpClose(false)} title={'Đóng'} />  </h2>
                                        <HelpSideBar />
                                    </div>
                                </div>
                            )
                            :
                            <Col className={'content-chatboard-col'} span={6}>
                                <div className="contentRight" >
                                    <h2 className="contentRightHeader">Trợ giúp Admin <CloseOutlined onClick={() => setHelpClose(false)} title={'Đóng'} />  </h2>
                                    <HelpSideBar />
                                </div>
                            </Col>
                    }
                </Row>
            </Layout>

            <NetworkError />
            <GlobalModal />
            <GlobalDrawer />

        </Layout>
    )
};

export default App;