/* globals jQuery */
/**
* Attaches items to DOM for Embedded SVG support
* @module EmbeddedSVGEditDOM
*/
import EmbeddedSVGEdit from './embedapi.js';

const $ = jQuery;

let svgCanvas = null;

function handleSvgData (data, error) {
  if (error) {
    alert('error ' + error);
  } else {
    alert('Congratulations. Your SVG string is back in the host page, do with it what you will\n\n' + data);
  }
}

function loadSvg () {
  const svgexample = '<svg width="640" height="480" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg"><g><title>Layer 1</title><rect stroke-width="5" stroke="#000000" fill="#FF0000" id="svg_1" height="35" width="51" y="35" x="32"/><ellipse ry="15" rx="24" stroke-width="5" stroke="#000000" fill="#0000ff" id="svg_2" cy="60" cx="66"/></g></svg>';
  svgCanvas.setSvgString(svgexample);
}

function saveSvg () {
  svgCanvas.getSvgString()(handleSvgData);
}

function exportPNG () {
  svgCanvas.getUIStrings()(function (uiStrings) {
    const str = uiStrings.notification.loadingImage;

    const exportWindow = window.open(
      'data:text/html;charset=utf-8,' + encodeURIComponent('<title>' + str + '</title><h1>' + str + '</h1>'),
      'svg-edit-exportWindow'
    );
    svgCanvas.rasterExport('PNG', null, exportWindow.name);
  });
}

function exportPDF () {
  svgCanvas.getUIStrings()(function (uiStrings) {
    const str = uiStrings.notification.loadingImage;

    /**
    // If you want to handle the PDF blob yourself, do as follows
    svgCanvas.bind('exportedPDF', function (win, data) {
      alert(data.output);
    });
    svgCanvas.exportPDF(); // Accepts two args: optionalWindowName supplied back to bound exportPDF handler and optional outputType (defaults to dataurlstring)
    return;
    */

    const exportWindow = window.open(
      'data:text/html;charset=utf-8,' + encodeURIComponent('<title>' + str + '</title><h1>' + str + '</h1>'),
      'svg-edit-exportWindow'
    );
    svgCanvas.exportPDF(exportWindow.name);
  });
}

// Add event handlers
$('#load').click(loadSvg);
$('#save').click(saveSvg);
$('#exportPNG').click(exportPNG);
$('#exportPDF').click(exportPDF);

const iframe = $('<iframe src="svg-editor.html?extensions=ext-xdomain-messaging.js' +
  (location.href.includes('?')
    ? location.href.replace(/\?(.*)$/, '&$1')
    : '') + // Append arguments to this file onto the iframe
  '" width="900px" height="600px" id="svgedit""></iframe>'
);
iframe[0].addEventListener('load', function () {
  svgCanvas = new EmbeddedSVGEdit(frame);
  // Hide main button, as we will be controlling new, load, save, etc. from the host document
  let doc;
  try {
    doc = frame.contentDocument || frame.contentWindow.document;
  } catch (err) {
    console.log('Blocked from accessing document');
    return;
  }
  const mainButton = doc.getElementById('main_button');
  mainButton.style.display = 'none';
});
$('body').append(iframe);
const frame = document.getElementById('svgedit');