/*
 * Copyright (c) 2019 - 2020 Arnaud Vergnet.
 *
 * This file is part of Campus INSAT.
 *
 * Campus INSAT is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Campus INSAT is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Campus INSAT.  If not, see <https://www.gnu.org/licenses/>.
 */

// @flow

import * as React from 'react';
import {StackNavigationProp} from '@react-navigation/stack';
import WebViewScreen from '../../components/Screens/WebViewScreen';
import AvailableWebsites from '../../constants/AvailableWebsites';
import BasicLoadingScreen from '../../components/Screens/BasicLoadingScreen';

type PropsType = {
  navigation: StackNavigationProp,
  route: {params: {host: string, path: string | null, title: string}},
};

const ENABLE_MOBILE_STRING = `<meta name="viewport" content="width=device-width, initial-scale=1.0">`;

const AVAILABLE_ROOMS_STYLE = `<style>body,body>.container2{padding-top:0;width:100%}b,body>.container2>h1,body>.container2>h3,br,header{display:none}.table-bordered td,.table-bordered th{border:none;border-right:1px solid #dee2e6;border-bottom:1px solid #dee2e6}.table{padding:0;margin:0;width:200%;max-width:200%;display:block}tbody{display:block;width:100%}thead{display:block;width:100%}.table tbody tr,tbody tr[bgcolor],thead tr{width:100%;display:inline-flex}.table tbody td,.table thead td[colspan]{padding:0;flex:1;height:50px;margin:0}.table tbody td[bgcolor=white],.table thead td,.table>tbody>tr>td:nth-child(1){flex:0 0 150px;height:50px}</style>`;
const BIB_STYLE = `<style>.hero-unit,.navbar,footer{display:none}.hero-unit-form,.hero-unit2,.hero-unit3{background-color:#fff;box-shadow:none;padding:0;margin:0}.hero-unit-form h4{font-size:2rem;line-height:2rem}.btn{font-size:1.5rem;line-height:1.5rem;padding:20px}.btn-danger{background-image:none;background-color:#be1522}.table{font-size:.8rem}.table td{padding:0;height:18.2333px;border:none;border-bottom:1px solid #c1c1c1}.table td[style="max-width:55px;"]{max-width:110px!important}.table-bordered{min-width:50px}th{height:50px}.table-bordered{border-collapse:collapse}</style>`;

const BIB_BACK_BUTTON =
  `<div style='width: 100%; display: flex'>` +
  `<a style='margin: auto' href='${AvailableWebsites.websites.BIB}'>` +
  `<button id='customBackButton' class='btn btn-primary'>Retour</button>` +
  `</a>` +
  `</div>`;

class WebsiteScreen extends React.Component<PropsType> {
  fullUrl: string;

  injectedJS: {[key: string]: string};

  customPaddingFunctions: {[key: string]: (padding: string) => string};

  host: string;

  constructor(props: PropsType) {
    super(props);
    props.navigation.addListener('focus', this.onScreenFocus);
    this.injectedJS = {};
    this.customPaddingFunctions = {};
    this.injectedJS[AvailableWebsites.websites.AVAILABLE_ROOMS] =
      `document.querySelector('head').innerHTML += '${ENABLE_MOBILE_STRING}';` +
      `document.querySelector('head').innerHTML += '${AVAILABLE_ROOMS_STYLE}'; true;`;

    this.injectedJS[AvailableWebsites.websites.BIB] =
      `document.querySelector('head').innerHTML += '${ENABLE_MOBILE_STRING}';` +
      `document.querySelector('head').innerHTML += '${BIB_STYLE}';` +
      `if ($(".hero-unit-form").length > 0 && $("#customBackButton").length === 0)` +
      `$(".hero-unit-form").append("${BIB_BACK_BUTTON}");true;`;

    this.customPaddingFunctions[AvailableWebsites.websites.BLUEMIND] = (
      padding: string,
    ): string => {
      return (
        `$('head').append('${ENABLE_MOBILE_STRING}');` +
        `$('.minwidth').css('top', ${padding}` +
        `$('#mailview-bottom').css('min-height', 500);`
      );
    };
    this.customPaddingFunctions[AvailableWebsites.websites.WIKETUD] = (
      padding: string,
    ): string => {
      return (
        `$('#p-logo-text').css('top', 10 + ${padding});` +
        `$('#site-navigation h2').css('top', 10 + ${padding});` +
        `$('#site-tools h2').css('top', 10 + ${padding});` +
        `$('#user-tools h2').css('top', 10 + ${padding});`
      );
    };
  }

  onScreenFocus = () => {
    this.handleNavigationParams();
  };

  /**
   *
   */
  handleNavigationParams() {
    const {route, navigation} = this.props;
    if (route.params != null) {
      this.host = route.params.host;
      let {path} = route.params;
      const {title} = route.params;
      if (this.host != null && path != null) {
        path = path.replace(this.host, '');
        this.fullUrl = this.host + path;
      } else this.fullUrl = this.host;

      if (title != null) navigation.setOptions({title});
    }
  }

  render(): React.Node {
    const {navigation} = this.props;
    let injectedJavascript = '';
    let customPadding = null;
    if (this.host != null && this.injectedJS[this.host] != null)
      injectedJavascript = this.injectedJS[this.host];
    if (this.host != null && this.customPaddingFunctions[this.host] != null)
      customPadding = this.customPaddingFunctions[this.host];

    if (this.fullUrl != null) {
      return (
        <WebViewScreen
          navigation={navigation}
          url={this.fullUrl}
          customJS={injectedJavascript}
          customPaddingFunction={customPadding}
        />
      );
    }
    return <BasicLoadingScreen />;
  }
}

export default WebsiteScreen;