import * as electronRemote from '@electron/remote';
const electronConsole = electronRemote.getGlobal('console') as Console;
import Logger from '../../../logger/logger';
const LOG = Logger.create(__filename, electronConsole);

import BaseElements from './require/base-elements';
import ElementsUtil from './require/elements-util';

import ClientController from '../client-controller';
import { CacheServerData, ServerMetaData } from '../data-types';
import Q from '../q-module';
import UI from '../ui';
import Actions from '../actions';
import createServerContextMenu from './context-menu-srv';
import Controller from '../controller';

export default function createServerListServer(document: Document, q: Q, ui: UI, controller: Controller, server: ClientController) {
    let element = q.create({ class: 'server', 'meta-id': server.id, 'meta-name': server.id, content: [
        { class: 'pill' },
        { tag: 'img', src: './img/loading.svg', alt: 'server' }, // src is set later by script.js 
    ] }) as HTMLElement;

    // Hover over for name + connection info
    (async () => {
        let serverData: ServerMetaData | CacheServerData;
        try {
            serverData = await server.grabMetadata();
            if (!serverData.iconResourceId) throw new Error('server icon not identified yet');
            let serverIcon = await server.fetchResource(serverData.iconResourceId);
            let serverIconSrc = await ElementsUtil.getImageBufferSrc(serverIcon);
            (q.$$$(element, 'img') as HTMLImageElement).src = serverIconSrc;
        } catch (e) {
            LOG.error('Error fetching server icon', e);
            (q.$$$(element, 'img') as HTMLImageElement).src = './img/error.png';
            return;
        }

        element.setAttribute('meta-name', serverData.name);

        let contextElement = q.create({ class: 'context', content: {
            class: 'info', content: [
                BaseElements.TAB_LEFT,
                { class: 'content server' } // populated later
            ]
        } }) as HTMLElement;

        // TODO: future: update the status in real-time with the update-member event

        element.addEventListener('mouseenter', async () => {
            Q.clearChildren(q.$$$(contextElement, '.content'));
            q.$$$(contextElement, '.content').appendChild(q.create({ class: 'name', content: element.getAttribute('meta-name') }));
            document.body.appendChild(contextElement);
            ElementsUtil.alignContextElement(contextElement, element, { left: 'right', centerY: 'centerY' });
            (async () => {
                let connection = await server.fetchConnectionInfo();
                let connectionElement = q.create({ class: 'connection ' + connection.status, content: [
                    { class: 'status-circle' },
                    { class: 'display-name', content: connection.displayName }
                ] });
                q.$$$(contextElement, '.content').appendChild(connectionElement);
                ElementsUtil.alignContextElement(contextElement, element, { left: 'right', centerY: 'centerY' });
            })();
        });

        element.addEventListener('mouseleave', () => {
            if (contextElement.parentElement) {
                contextElement.parentElement.removeChild(contextElement);
            }
        });
    })();

    element.addEventListener('click', async () => {
        if (element.classList.contains('active')) return;

        ui.setActiveServer(server);

        // Connection information
        (async () => {
            await Actions.fetchAndUpdateConnection(ui, server);
        })();

        // Server Channel Name
        (async () => {
            // Explicitly not using a withPotentialError to make this simpler
            try {
                let serverData = await server.grabMetadata();
                ui.updateServerName(server, serverData.name);
            } catch (e) {
                LOG.error('Error fetching server name', e);
                ui.updateServerName(server, 'ERROR');
            }
        })();

        // Server Channel List
        (async () => {
            await Actions.fetchAndUpdateChannels(q, ui, server);
        })();
        
        // Server Members
        (async () => {
            await Actions.fetchAndUpdateMembers(q, ui, server);
        })();
    });

    element.addEventListener('contextmenu', (e) => {
        let contextMenu = createServerContextMenu(document, q, ui, controller, server);
        document.body.appendChild(contextMenu);
        let relativeTo = { x: e.pageX, y: e.pageY };
        ElementsUtil.alignContextElement(contextMenu, relativeTo, { top: 'centerY', left: 'centerX' });
    });

    return element;
}