/*
 *    Copyright [2015] [wisemapping]
 *
 *   Licensed under WiseMapping Public License, Version 1.0 (the "License").
 *   It is basically the Apache License, Version 2.0 (the "License") plus the
 *   "powered by wisemapping" text requirement on every single page;
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the license at
 *
 *       http://www.wisemapping.org/license
 *
 *   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.
 */

import mindplot from '../../../../src/mindplot';

let designer = null;

/*
 * Disclaimer: this global variable is a temporary workaround to Mootools' Browser class
 * We need to avoid browser detection and replace it with feature detection,
 * jquery recommends: http://www.modernizr.com/
 */

global.Browser = {
  firefox: window.globalStorage,
  ie: document.all && !window.opera,
  ie6: !window.XMLHttpRequest,
  ie7: document.all && window.XMLHttpRequest && !XDomainRequest && !window.opera,
  ie8: document.documentMode == 8,
  ie11: document.documentMode == 11,
  opera: Boolean(window.opera),
  chrome: Boolean(window.chrome),
  safari: window.getComputedStyle && !window.globalStorage && !window.opera,
  Platform: {
    mac: navigator.platform.indexOf('Mac') != -1,
  },
};

function buildDesigner(options) {
  const container = $(`#${options.container}`);
  $assert(container, 'container could not be null');

  // Register load events ...
  designer = new mindplot.Designer(options, container);
  designer.addEvent('loadSuccess', () => {
    window.waitDialog.close();
    window.waitDialog = null;
    window.mindmapLoadReady = true;
  });

  const onerrorFn = function onerror(message, url, lineNo) {
    // Ignore errors ...
    if (message === 'Script error.' && lineNo == 0) {
      // http://stackoverflow.com/questions/5913978/cryptic-script-error-reported-in-javascript-in-chrome-and-firefox
      return;
    }

    // Transform error ...
    let errorMsg = message;
    if (typeof (message) === 'object' && message.srcElement && message.target) {
      if (message.srcElement == '[object HTMLScriptElement]' && message.target == '[object HTMLScriptElement]') {
        errorMsg = 'Error loading script';
      } else {
        errorMsg = `Event Error - target:${message.target} srcElement:${message.srcElement}`;
      }
    }
    errorMsg = errorMsg.toString();

    $.ajax({
      method: 'post',
      url: '/c/restful/logger/editor',
      headers: { 'Content-Type': 'application/json', Accept: 'application/json' },
      data: JSON.stringify({
        jsErrorMsg: `Message: '${errorMsg}', line:'${lineNo}', url: :${url}`,
        jsStack: window.event.error.stack || window.errorStack,
        userAgent: navigator.userAgent,
        mapId: options.mapId,
      }),
    });

    // Close loading dialog ...
    if (window.waitDialog) {
      window.waitDialog.close();
      window.waitDialog = null;
    }

    // Open error dialog only in case of mindmap loading errors. The rest of the error are reported but not display the dialog.
    // Remove this in the near future.
    if (!window.mindmapLoadReady) {
      $notifyModal($msg('UNEXPECTED_ERROR_LOADING'));
    }
  };

  window.onerror = onerrorFn;

  // Configure default persistence manager ...
  let persistence;
  if (options.persistenceManager) {
    if (options.persistenceManager instanceof String) {
      persistence = eval(`new ${options.persistenceManager}()`);
    } else {
      persistence = options.persistenceManager;
    }
  } else {
    persistence = new mindplot.LocalStorageManager('samples/{id}.xml');
  }
  mindplot.PersistenceManager.init(persistence);

  // Register toolbar event ...
  if ($('#toolbar')) {
    const menu = new mindplot.widget.Menu(designer, 'toolbar', options.mapId, '');

    //  If a node has focus, focus can be move to another node using the keys.
    designer._cleanScreen = function () {
      menu.clear();
    };
  }

  return designer;
}

function loadDesignerOptions(jsonConf) {
  // Load map options ...
  let result;
  const me = this;
  if (jsonConf) {
    $.ajax({
      url: jsonConf,
      dataType: 'json',
      async: false,
      method: 'get',
      success(options) {
        me.options = options;
      },
    });
    result = this.options;
  } else {
    // Set workspace screen size as default. In this way, resize issues are solved.
    const containerSize = {
      height: parseInt(screen.height),
      width: parseInt(screen.width),
    };

    const viewPort = {
      height: parseInt(window.innerHeight - 70), // Footer and Header
      width: parseInt(window.innerWidth),
    };
    result = {
      readOnly: false,
      zoom: 0.85,
      saveOnLoad: true,
      size: containerSize,
      viewPort,
      container: 'mindplot',
      locale: 'en',
    };
  }
  return result;
}

global.editor = {};
global.editor.WaitDialog = new Class({
  initialize() {
    this.panel = this._buildPanel();
  },

  _buildPanel() {
    const result = $('#load');
    const content = result.find('.modal-content');
    const winH = $(window).height();
    // Set the popup window to center
    content.css('margin-top', winH / 2 - content.height() / 2);
    return result;
  },

  show() {
    this.panel.modal({
      backdrop: 'static',
    });
  },

  close() {
    this.panel.modal('hide');
  },
});

// Show loading dialog ...
$(() => {
    global.jQuery = global.$;
    import('./bootstrap').then(() => {
        global.waitDialog = new global.editor.WaitDialog();
        global.waitDialog.show();

        // from viewmode.html ---------
        var mapId = 'welcome';
        // Set readonly option ...
        var options = loadDesignerOptions();
        options.readOnly = true;
        var designer = buildDesigner(options);

        // Load map from XML file persisted on disk...
        var persistence = mindplot.PersistenceManager.getInstance();
        var mindmap;
        try {
            mindmap = persistence.load(mapId);
        } catch (e) {
            // If the map could not be loaded, create a new empty map...
            mindmap = mindplot.model.Mindmap.buildEmpty(mapId);
        }
        designer.loadMap(mindmap);
        // from viewmode.html ---------
    });
});