/*!
 * HTML5 export buttons for Buttons and DataTables.
 * © SpryMedia Ltd - datatables.net/license
 *
 * FileSaver.js (1.3.3) - MIT license
 * Copyright © 2016 Eli Grey - http://eligrey.com
 */

import jQuery from 'jquery';
import DataTable from 'datatables.net';
import Buttons from 'datatables.net-buttons';

// Allow reassignment of the $ variable
let $ = jQuery;


// Allow the constructor to pass in JSZip and PDFMake from external requires.
// Otherwise, use globally defined variables, if they are available.
var useJszip;
var usePdfmake;

function _jsZip() {
	return useJszip || window.JSZip;
}
function _pdfMake() {
	return usePdfmake || window.pdfMake;
}

DataTable.Buttons.pdfMake = function (_) {
	if (!_) {
		return _pdfMake();
	}
	usePdfmake = _;
};

DataTable.Buttons.jszip = function (_) {
	if (!_) {
		return _jsZip();
	}
	useJszip = _;
};

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * FileSaver.js dependency
 */

/*jslint bitwise: true, indent: 4, laxbreak: true, laxcomma: true, smarttabs: true, plusplus: true */

var _saveAs = (function (view) {
	'use strict';
	// IE <10 is explicitly unsupported
	if (
		typeof view === 'undefined' ||
		(typeof navigator !== 'undefined' &&
			/MSIE [1-9]\./.test(navigator.userAgent))
	) {
		return;
	}
	var doc = view.document,
		// only get URL when necessary in case Blob.js hasn't overridden it yet
		get_URL = function () {
			return view.URL || view.webkitURL || view;
		},
		save_link = doc.createElementNS('http://www.w3.org/1999/xhtml', 'a'),
		can_use_save_link = 'download' in save_link,
		click = function (node) {
			var event = new MouseEvent('click');
			node.dispatchEvent(event);
		},
		is_safari = /constructor/i.test(view.HTMLElement) || view.safari,
		is_chrome_ios = /CriOS\/[\d]+/.test(navigator.userAgent),
		throw_outside = function (ex) {
			(view.setImmediate || view.setTimeout)(function () {
				throw ex;
			}, 0);
		},
		force_saveable_type = 'application/octet-stream',
		// the Blob API is fundamentally broken as there is no "downloadfinished" event to subscribe to
		arbitrary_revoke_timeout = 1000 * 40, // in ms
		revoke = function (file) {
			var revoker = function () {
				if (typeof file === 'string') {
					// file is an object URL
					get_URL().revokeObjectURL(file);
				}
				else {
					// file is a File
					file.remove();
				}
			};
			setTimeout(revoker, arbitrary_revoke_timeout);
		},
		dispatch = function (filesaver, event_types, event) {
			event_types = [].concat(event_types);
			var i = event_types.length;
			while (i--) {
				var listener = filesaver['on' + event_types[i]];
				if (typeof listener === 'function') {
					try {
						listener.call(filesaver, event || filesaver);
					} catch (ex) {
						throw_outside(ex);
					}
				}
			}
		},
		auto_bom = function (blob) {
			// prepend BOM for UTF-8 XML and text/* types (including HTML)
			// note: your browser will automatically convert UTF-16 U+FEFF to EF BB BF
			if (
				/^\s*(?:text\/\S*|application\/xml|\S*\/\S*\+xml)\s*;.*charset\s*=\s*utf-8/i.test(
					blob.type
				)
			) {
				return new Blob([String.fromCharCode(0xfeff), blob], {
					type: blob.type
				});
			}
			return blob;
		},
		FileSaver = function (blob, name, no_auto_bom) {
			if (!no_auto_bom) {
				blob = auto_bom(blob);
			}
			// First try a.download, then web filesystem, then object URLs
			var filesaver = this,
				type = blob.type,
				force = type === force_saveable_type,
				object_url,
				dispatch_all = function () {
					dispatch(
						filesaver,
						'writestart progress write writeend'.split(' ')
					);
				},
				// on any filesys errors revert to saving with object URLs
				fs_error = function () {
					if (
						(is_chrome_ios || (force && is_safari)) &&
						view.FileReader
					) {
						// Safari doesn't allow downloading of blob urls
						var reader = new FileReader();
						reader.onloadend = function () {
							var url = is_chrome_ios
								? reader.result
								: reader.result.replace(
										/^data:[^;]*;/,
										'data:attachment/file;'
								);
							var popup = view.open(url, '_blank');
							if (!popup) view.location.href = url;
							url = undefined; // release reference before dispatching
							filesaver.readyState = filesaver.DONE;
							dispatch_all();
						};
						reader.readAsDataURL(blob);
						filesaver.readyState = filesaver.INIT;
						return;
					}
					// don't create more object URLs than needed
					if (!object_url) {
						object_url = get_URL().createObjectURL(blob);
					}
					if (force) {
						view.location.href = object_url;
					}
					else {
						var opened = view.open(object_url, '_blank');
						if (!opened) {
							// Apple does not allow window.open, see https://developer.apple.com/library/safari/documentation/Tools/Conceptual/SafariExtensionGuide/WorkingwithWindowsandTabs/WorkingwithWindowsandTabs.html
							view.location.href = object_url;
						}
					}
					filesaver.readyState = filesaver.DONE;
					dispatch_all();
					revoke(object_url);
				};
			filesaver.readyState = filesaver.INIT;

			if (can_use_save_link) {
				object_url = get_URL().createObjectURL(blob);
				setTimeout(function () {
					save_link.href = object_url;
					save_link.download = name;
					click(save_link);
					dispatch_all();
					revoke(object_url);
					filesaver.readyState = filesaver.DONE;
				});
				return;
			}

			fs_error();
		},
		FS_proto = FileSaver.prototype,
		saveAs = function (blob, name, no_auto_bom) {
			return new FileSaver(
				blob,
				name || blob.name || 'download',
				no_auto_bom
			);
		};
	// IE 10+ (native saveAs)
	if (typeof navigator !== 'undefined' && navigator.msSaveOrOpenBlob) {
		return function (blob, name, no_auto_bom) {
			name = name || blob.name || 'download';

			if (!no_auto_bom) {
				blob = auto_bom(blob);
			}
			return navigator.msSaveOrOpenBlob(blob, name);
		};
	}

	FS_proto.abort = function () {};
	FS_proto.readyState = FS_proto.INIT = 0;
	FS_proto.WRITING = 1;
	FS_proto.DONE = 2;

	FS_proto.error =
		FS_proto.onwritestart =
		FS_proto.onprogress =
		FS_proto.onwrite =
		FS_proto.onabort =
		FS_proto.onerror =
		FS_proto.onwriteend =
			null;

	return saveAs;
})(
	(typeof self !== 'undefined' && self) ||
		(typeof window !== 'undefined' && window) ||
		this.content
);

// Expose file saver on the DataTables API. Can't attach to `DataTables.Buttons`
// since this file can be loaded before Button's core!
DataTable.fileSave = _saveAs;

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Local (private) functions
 */

/**
 * Get the sheet name for Excel exports.
 *
 * @param {object}	config Button configuration
 */
var _sheetname = function (config) {
	var sheetName = 'Sheet1';

	if (config.sheetName) {
		sheetName = config.sheetName.replace(/[\[\]\*\/\\\?\:]/g, '');
	}

	return sheetName;
};

/**
 * Get the newline character(s)
 *
 * @param {object}	config Button configuration
 * @return {string}				Newline character
 */
var _newLine = function (config) {
	return config.newline
		? config.newline
		: navigator.userAgent.match(/Windows/)
		? '\r\n'
		: '\n';
};

/**
 * Combine the data from the `buttons.exportData` method into a string that
 * will be used in the export file.
 *
 * @param	{DataTable.Api} dt		 DataTables API instance
 * @param	{object}				config Button configuration
 * @return {object}							 The data to export
 */
var _exportData = function (dt, config) {
	var newLine = _newLine(config);
	var data = dt.buttons.exportData(config.exportOptions);
	var boundary = config.fieldBoundary;
	var separator = config.fieldSeparator;
	var reBoundary = new RegExp(boundary, 'g');
	var escapeChar = config.escapeChar !== undefined ? config.escapeChar : '\\';
	var join = function (a) {
		var s = '';

		// If there is a field boundary, then we might need to escape it in
		// the source data
		for (var i = 0, ien = a.length; i < ien; i++) {
			if (i > 0) {
				s += separator;
			}

			s += boundary
				? boundary +
				('' + a[i]).replace(reBoundary, escapeChar + boundary) +
				boundary
				: a[i];
		}

		return s;
	};

	var header = '';
	var footer = '';
	var body = [];

	if (config.header) {
		header =
			data.headerStructure
				.map(function (row) {
					return join(
						row.map(function (cell) {
							return cell ? cell.title : '';
						})
					);
				})
				.join(newLine) + newLine;
	}

	if (config.footer && data.footer) {
		footer =
			data.footerStructure
				.map(function (row) {
					return join(
						row.map(function (cell) {
							return cell ? cell.title : '';
						})
					);
				})
				.join(newLine) + newLine;
	}

	for (var i = 0, ien = data.body.length; i < ien; i++) {
		body.push(join(data.body[i]));
	}

	return {
		str: header + body.join(newLine) + newLine + footer,
		rows: body.length
	};
};

/**
 * Older versions of Safari (prior to tech preview 18) don't support the
 * download option required.
 *
 * @return {Boolean} `true` if old Safari
 */
var _isDuffSafari = function () {
	var safari =
		navigator.userAgent.indexOf('Safari') !== -1 &&
		navigator.userAgent.indexOf('Chrome') === -1 &&
		navigator.userAgent.indexOf('Opera') === -1;

	if (!safari) {
		return false;
	}

	var version = navigator.userAgent.match(/AppleWebKit\/(\d+\.\d+)/);
	if (version && version.length > 1 && version[1] * 1 < 603.1) {
		return true;
	}

	return false;
};

/**
 * Convert from numeric position to letter for column names in Excel
 * @param  {int} n Column number
 * @return {string} Column letter(s) name
 */
function createCellPos(n) {
	var ordA = 'A'.charCodeAt(0);
	var ordZ = 'Z'.charCodeAt(0);
	var len = ordZ - ordA + 1;
	var s = '';

	while (n >= 0) {
		s = String.fromCharCode((n % len) + ordA) + s;
		n = Math.floor(n / len) - 1;
	}

	return s;
}

try {
	var _serialiser = new XMLSerializer();
	var _ieExcel;
} catch (t) {
	// noop
}

/**
 * Recursively add XML files from an object's structure to a ZIP file. This
 * allows the XSLX file to be easily defined with an object's structure matching
 * the files structure.
 *
 * @param {JSZip} zip ZIP package
 * @param {object} obj Object to add (recursive)
 */
function _addToZip(zip, obj) {
	if (_ieExcel === undefined) {
		// Detect if we are dealing with IE's _awful_ serialiser by seeing if it
		// drop attributes
		_ieExcel =
			_serialiser
				.serializeToString(
					new window.DOMParser().parseFromString(
						excelStrings['xl/worksheets/sheet1.xml'],
						'text/xml'
					)
				)
				.indexOf('xmlns:r') === -1;
	}

	$.each(obj, function (name, val) {
		if ($.isPlainObject(val)) {
			var newDir = zip.folder(name);
			_addToZip(newDir, val);
		}
		else {
			if (_ieExcel) {
				// IE's XML serialiser will drop some name space attributes from
				// from the root node, so we need to save them. Do this by
				// replacing the namespace nodes with a regular attribute that
				// we convert back when serialised. Edge does not have this
				// issue
				var worksheet = val.childNodes[0];
				var i, ien;
				var attrs = [];

				for (i = worksheet.attributes.length - 1; i >= 0; i--) {
					var attrName = worksheet.attributes[i].nodeName;
					var attrValue = worksheet.attributes[i].nodeValue;

					if (attrName.indexOf(':') !== -1) {
						attrs.push({ name: attrName, value: attrValue });

						worksheet.removeAttribute(attrName);
					}
				}

				for (i = 0, ien = attrs.length; i < ien; i++) {
					var attr = val.createAttribute(
						attrs[i].name.replace(':', '_dt_b_namespace_token_')
					);
					attr.value = attrs[i].value;
					worksheet.setAttributeNode(attr);
				}
			}

			var str = _serialiser.serializeToString(val);

			// Fix IE's XML
			if (_ieExcel) {
				// IE doesn't include the XML declaration
				if (str.indexOf('<?xml') === -1) {
					str =
						'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>' +
						str;
				}

				// Return namespace attributes to being as such
				str = str.replace(/_dt_b_namespace_token_/g, ':');

				// Remove testing name space that IE puts into the space preserve attr
				str = str.replace(/xmlns:NS[\d]+="" NS[\d]+:/g, '');
			}

			// Safari, IE and Edge will put empty name space attributes onto
			// various elements making them useless. This strips them out
			str = str.replace(/<([^<>]*?) xmlns=""([^<>]*?)>/g, '<$1 $2>');

			zip.file(name, str);
		}
	});
}

/**
 * Create an XML node and add any children, attributes, etc without needing to
 * be verbose in the DOM.
 *
 * @param  {object} doc      XML document
 * @param  {string} nodeName Node name
 * @param  {object} opts     Options - can be `attr` (attributes), `children`
 *   (child nodes) and `text` (text content)
 * @return {node}            Created node
 */
function _createNode(doc, nodeName, opts) {
	var tempNode = doc.createElement(nodeName);

	if (opts) {
		if (opts.attr) {
			$(tempNode).attr(opts.attr);
		}

		if (opts.children) {
			$.each(opts.children, function (key, value) {
				tempNode.appendChild(value);
			});
		}

		if (opts.text !== null && opts.text !== undefined) {
			tempNode.appendChild(doc.createTextNode(opts.text));
		}
	}

	return tempNode;
}

/**
 * Get the width for an Excel column based on the contents of that column
 * @param  {object} data Data for export
 * @param  {int}    col  Column index
 * @return {int}         Column width
 */
function _excelColWidth(data, col) {
	var max = data.header[col].length;
	var len, lineSplit, str;

	if (data.footer && data.footer[col] && data.footer[col].length > max) {
		max = data.footer[col].length;
	}

	for (var i = 0, ien = data.body.length; i < ien; i++) {
		var point = data.body[i][col];
		str = point !== null && point !== undefined ? point.toString() : '';

		// If there is a newline character, workout the width of the column
		// based on the longest line in the string
		if (str.indexOf('\n') !== -1) {
			lineSplit = str.split('\n');
			lineSplit.sort(function (a, b) {
				return b.length - a.length;
			});

			len = lineSplit[0].length;
		}
		else {
			len = str.length;
		}

		if (len > max) {
			max = len;
		}

		// Max width rather than having potentially massive column widths
		if (max > 40) {
			return 54; // 40 * 1.35
		}
	}

	max *= 1.35;

	// And a min width
	return max > 6 ? max : 6;
}

// Excel - Pre-defined strings to build a basic XLSX file
var excelStrings = {
	'_rels/.rels':
		'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>' +
		'<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">' +
		'<Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument" Target="xl/workbook.xml"/>' +
		'</Relationships>',

	'xl/_rels/workbook.xml.rels':
		'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>' +
		'<Relationships xmlns="http://schemas.openxmlformats.org/package/2006/relationships">' +
		'<Relationship Id="rId1" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/worksheet" Target="worksheets/sheet1.xml"/>' +
		'<Relationship Id="rId2" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/styles" Target="styles.xml"/>' +
		'</Relationships>',

	'[Content_Types].xml':
		'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>' +
		'<Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">' +
		'<Default Extension="xml" ContentType="application/xml" />' +
		'<Default Extension="rels" ContentType="application/vnd.openxmlformats-package.relationships+xml" />' +
		'<Default Extension="jpeg" ContentType="image/jpeg" />' +
		'<Override PartName="/xl/workbook.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet.main+xml" />' +
		'<Override PartName="/xl/worksheets/sheet1.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.worksheet+xml" />' +
		'<Override PartName="/xl/styles.xml" ContentType="application/vnd.openxmlformats-officedocument.spreadsheetml.styles+xml" />' +
		'</Types>',

	'xl/workbook.xml':
		'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>' +
		'<workbook xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">' +
		'<fileVersion appName="xl" lastEdited="5" lowestEdited="5" rupBuild="24816"/>' +
		'<workbookPr showInkAnnotation="0" autoCompressPictures="0"/>' +
		'<bookViews>' +
		'<workbookView xWindow="0" yWindow="0" windowWidth="25600" windowHeight="19020" tabRatio="500"/>' +
		'</bookViews>' +
		'<sheets>' +
		'<sheet name="Sheet1" sheetId="1" r:id="rId1"/>' +
		'</sheets>' +
		'<definedNames/>' +
		'</workbook>',

	'xl/worksheets/sheet1.xml':
		'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>' +
		'<worksheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="x14ac" xmlns:x14ac="http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac">' +
		'<sheetData/>' +
		'<mergeCells count="0"/>' +
		'</worksheet>',

	'xl/styles.xml':
		'<?xml version="1.0" encoding="UTF-8"?>' +
		'<styleSheet xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="x14ac" xmlns:x14ac="http://schemas.microsoft.com/office/spreadsheetml/2009/9/ac">' +
		'<numFmts count="6">' +
		'<numFmt numFmtId="164" formatCode="[$$-409]#,##0.00;-[$$-409]#,##0.00"/>' +
		'<numFmt numFmtId="165" formatCode="&quot;£&quot;#,##0.00"/>' +
		'<numFmt numFmtId="166" formatCode="[$€-2] #,##0.00"/>' +
		'<numFmt numFmtId="167" formatCode="0.0%"/>' +
		'<numFmt numFmtId="168" formatCode="#,##0;(#,##0)"/>' +
		'<numFmt numFmtId="169" formatCode="#,##0.00;(#,##0.00)"/>' +
		'</numFmts>' +
		'<fonts count="5" x14ac:knownFonts="1">' +
		'<font>' +
		'<sz val="11" />' +
		'<name val="Calibri" />' +
		'</font>' +
		'<font>' +
		'<sz val="11" />' +
		'<name val="Calibri" />' +
		'<color rgb="FFFFFFFF" />' +
		'</font>' +
		'<font>' +
		'<sz val="11" />' +
		'<name val="Calibri" />' +
		'<b />' +
		'</font>' +
		'<font>' +
		'<sz val="11" />' +
		'<name val="Calibri" />' +
		'<i />' +
		'</font>' +
		'<font>' +
		'<sz val="11" />' +
		'<name val="Calibri" />' +
		'<u />' +
		'</font>' +
		'</fonts>' +
		'<fills count="6">' +
		'<fill>' +
		'<patternFill patternType="none" />' +
		'</fill>' +
		'<fill>' + // Excel appears to use this as a dotted background regardless of values but
		'<patternFill patternType="none" />' + // to be valid to the schema, use a patternFill
		'</fill>' +
		'<fill>' +
		'<patternFill patternType="solid">' +
		'<fgColor rgb="FFD9D9D9" />' +
		'<bgColor indexed="64" />' +
		'</patternFill>' +
		'</fill>' +
		'<fill>' +
		'<patternFill patternType="solid">' +
		'<fgColor rgb="FFD99795" />' +
		'<bgColor indexed="64" />' +
		'</patternFill>' +
		'</fill>' +
		'<fill>' +
		'<patternFill patternType="solid">' +
		'<fgColor rgb="ffc6efce" />' +
		'<bgColor indexed="64" />' +
		'</patternFill>' +
		'</fill>' +
		'<fill>' +
		'<patternFill patternType="solid">' +
		'<fgColor rgb="ffc6cfef" />' +
		'<bgColor indexed="64" />' +
		'</patternFill>' +
		'</fill>' +
		'</fills>' +
		'<borders count="2">' +
		'<border>' +
		'<left />' +
		'<right />' +
		'<top />' +
		'<bottom />' +
		'<diagonal />' +
		'</border>' +
		'<border diagonalUp="false" diagonalDown="false">' +
		'<left style="thin">' +
		'<color auto="1" />' +
		'</left>' +
		'<right style="thin">' +
		'<color auto="1" />' +
		'</right>' +
		'<top style="thin">' +
		'<color auto="1" />' +
		'</top>' +
		'<bottom style="thin">' +
		'<color auto="1" />' +
		'</bottom>' +
		'<diagonal />' +
		'</border>' +
		'</borders>' +
		'<cellStyleXfs count="1">' +
		'<xf numFmtId="0" fontId="0" fillId="0" borderId="0" />' +
		'</cellStyleXfs>' +
		'<cellXfs count="68">' +
		'<xf numFmtId="0" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="1" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="2" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="3" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="4" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="0" fillId="2" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="1" fillId="2" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="2" fillId="2" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="3" fillId="2" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="4" fillId="2" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="0" fillId="3" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="1" fillId="3" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="2" fillId="3" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="3" fillId="3" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="4" fillId="3" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="0" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="1" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="2" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="3" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="4" fillId="4" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="0" fillId="5" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="1" fillId="5" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="2" fillId="5" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="3" fillId="5" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="4" fillId="5" borderId="0" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="0" fillId="0" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="1" fillId="0" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="2" fillId="0" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="3" fillId="0" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="4" fillId="0" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="0" fillId="2" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="1" fillId="2" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="2" fillId="2" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="3" fillId="2" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="4" fillId="2" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="0" fillId="3" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="1" fillId="3" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="2" fillId="3" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="3" fillId="3" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="4" fillId="3" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="0" fillId="4" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="1" fillId="4" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="2" fillId="4" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="3" fillId="4" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="4" fillId="4" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="0" fillId="5" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="1" fillId="5" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="2" fillId="5" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="3" fillId="5" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="4" fillId="5" borderId="1" applyFont="1" applyFill="1" applyBorder="1"/>' +
		'<xf numFmtId="0" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyAlignment="1">' +
		'<alignment horizontal="left"/>' +
		'</xf>' +
		'<xf numFmtId="0" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyAlignment="1">' +
		'<alignment horizontal="center"/>' +
		'</xf>' +
		'<xf numFmtId="0" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyAlignment="1">' +
		'<alignment horizontal="right"/>' +
		'</xf>' +
		'<xf numFmtId="0" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyAlignment="1">' +
		'<alignment horizontal="fill"/>' +
		'</xf>' +
		'<xf numFmtId="0" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyAlignment="1">' +
		'<alignment textRotation="90"/>' +
		'</xf>' +
		'<xf numFmtId="0" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyAlignment="1">' +
		'<alignment wrapText="1"/>' +
		'</xf>' +
		'<xf numFmtId="9"   fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyNumberFormat="1"/>' +
		'<xf numFmtId="164" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyNumberFormat="1"/>' +
		'<xf numFmtId="165" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyNumberFormat="1"/>' +
		'<xf numFmtId="166" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyNumberFormat="1"/>' +
		'<xf numFmtId="167" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyNumberFormat="1"/>' +
		'<xf numFmtId="168" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyNumberFormat="1"/>' +
		'<xf numFmtId="169" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyNumberFormat="1"/>' +
		'<xf numFmtId="3" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyNumberFormat="1"/>' +
		'<xf numFmtId="4" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyNumberFormat="1"/>' +
		'<xf numFmtId="1" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyNumberFormat="1"/>' +
		'<xf numFmtId="2" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyNumberFormat="1"/>' +
		'<xf numFmtId="14" fontId="0" fillId="0" borderId="0" applyFont="1" applyFill="1" applyBorder="1" xfId="0" applyNumberFormat="1"/>' +
		'</cellXfs>' +
		'<cellStyles count="1">' +
		'<cellStyle name="Normal" xfId="0" builtinId="0" />' +
		'</cellStyles>' +
		'<dxfs count="0" />' +
		'<tableStyles count="0" defaultTableStyle="TableStyleMedium9" defaultPivotStyle="PivotStyleMedium4" />' +
		'</styleSheet>'
};
// Note we could use 3 `for` loops for the styles, but when gzipped there is
// virtually no difference in size, since the above can be easily compressed

// Pattern matching for special number formats. Perhaps this should be exposed
// via an API in future?
// Ref: section 3.8.30 - built in formatters in open spreadsheet
//   https://www.ecma-international.org/news/TC45_current_work/Office%20Open%20XML%20Part%204%20-%20Markup%20Language%20Reference.pdf
var _excelSpecials = [
	{
		match: /^\-?\d+\.\d%$/,
		style: 60,
		fmt: function (d) {
			return d / 100;
		}
	}, // Percent with d.p.
	{
		match: /^\-?\d+\.?\d*%$/,
		style: 56,
		fmt: function (d) {
			return d / 100;
		}
	}, // Percent
	{ match: /^\-?\$[\d,]+.?\d*$/, style: 57 }, // Dollars
	{ match: /^\-?£[\d,]+.?\d*$/, style: 58 }, // Pounds
	{ match: /^\-?€[\d,]+.?\d*$/, style: 59 }, // Euros
	{ match: /^\-?\d+$/, style: 65 }, // Numbers without thousand separators
	{ match: /^\-?\d+\.\d{2}$/, style: 66 }, // Numbers 2 d.p. without thousands separators
	{
		match: /^\([\d,]+\)$/,
		style: 61,
		fmt: function (d) {
			return -1 * d.replace(/[\(\)]/g, '');
		}
	}, // Negative numbers indicated by brackets
	{
		match: /^\([\d,]+\.\d{2}\)$/,
		style: 62,
		fmt: function (d) {
			return -1 * d.replace(/[\(\)]/g, '');
		}
	}, // Negative numbers indicated by brackets - 2d.p.
	{ match: /^\-?[\d,]+$/, style: 63 }, // Numbers with thousand separators
	{ match: /^\-?[\d,]+\.\d{2}$/, style: 64 },
	{
		match: /^(19\d\d|[2-9]\d\d\d)\-(0\d|1[012])\-[0123][\d]$/,
		style: 67,
		fmt: function (d) {
			return Math.round(25569 + Date.parse(d) / (86400 * 1000));
		}
	} //Date yyyy-mm-dd
];

var _excelMergeCells = function (rels, row, column, rowspan, colspan) {
	var mergeCells = $('mergeCells', rels);

	mergeCells[0].appendChild(
		_createNode(rels, 'mergeCell', {
			attr: {
				ref:
					createCellPos(column) +
					row +
					':' +
					createCellPos(column + colspan - 1) +
					(row + rowspan - 1)
			}
		})
	);

	mergeCells.attr('count', parseFloat(mergeCells.attr('count')) + 1);
};

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Buttons
 */

//
// Copy to clipboard
//
DataTable.ext.buttons.copyHtml5 = {
	className: 'buttons-copy buttons-html5',

	text: function (dt) {
		return dt.i18n('buttons.copy', 'Copy');
	},

	action: function (e, dt, button, config, cb) {
		var exportData = _exportData(dt, config);
		var info = dt.buttons.exportInfo(config);
		var newline = _newLine(config);
		var output = exportData.str;
		var hiddenDiv = $('<div/>').css({
			height: 1,
			width: 1,
			overflow: 'hidden',
			position: 'fixed',
			top: 0,
			left: 0
		});

		if (info.title) {
			output = info.title + newline + newline + output;
		}

		if (info.messageTop) {
			output = info.messageTop + newline + newline + output;
		}

		if (info.messageBottom) {
			output = output + newline + newline + info.messageBottom;
		}

		if (config.customize) {
			output = config.customize(output, config, dt);
		}

		var textarea = $('<textarea readonly/>')
			.val(output)
			.appendTo(hiddenDiv);

		// For browsers that support the copy execCommand, try to use it
		if (document.queryCommandSupported('copy')) {
			hiddenDiv.appendTo(dt.table().container());
			textarea[0].focus();
			textarea[0].select();

			try {
				var successful = document.execCommand('copy');
				hiddenDiv.remove();

				if (successful) {
					if (config.copySuccess) {
						dt.buttons.info(
							dt.i18n('buttons.copyTitle', 'Copy to clipboard'),
							dt.i18n(
								'buttons.copySuccess',
								{
									1: 'Copied one row to clipboard',
									_: 'Copied %d rows to clipboard'
								},
								exportData.rows
							),
							2000
						);
					}

					cb();
					return;
				}
			} catch (t) {
				// noop
			}
		}

		// Otherwise we show the text box and instruct the user to use it
		var message = $(
			'<span>' +
				dt.i18n(
					'buttons.copyKeys',
					'Press <i>ctrl</i> or <i>\u2318</i> + <i>C</i> to copy the table data<br>to your system clipboard.<br><br>' +
						'To cancel, click this message or press escape.'
				) +
				'</span>'
		).append(hiddenDiv);

		dt.buttons.info(
			dt.i18n('buttons.copyTitle', 'Copy to clipboard'),
			message,
			0
		);

		// Select the text so when the user activates their system clipboard
		// it will copy that text
		textarea[0].focus();
		textarea[0].select();

		// Event to hide the message when the user is done
		var container = $(message).closest('.dt-button-info');
		var close = function () {
			container.off('click.buttons-copy');
			$(document).off('.buttons-copy');
			dt.buttons.info(false);
		};

		container.on('click.buttons-copy', function () {
			close();
			cb();
		});
		$(document)
			.on('keydown.buttons-copy', function (e) {
				if (e.keyCode === 27) {
					// esc
					close();
					cb();
				}
			})
			.on('copy.buttons-copy cut.buttons-copy', function () {
				close();
				cb();
			});
	},

	async: 100,

	copySuccess: true,

	exportOptions: {},

	fieldSeparator: '\t',

	fieldBoundary: '',

	header: true,

	footer: true,

	title: '*',

	messageTop: '*',

	messageBottom: '*'
};

//
// CSV export
//
DataTable.ext.buttons.csvHtml5 = {
	bom: false,

	className: 'buttons-csv buttons-html5',

	available: function () {
		return window.FileReader !== undefined && window.Blob;
	},

	text: function (dt) {
		return dt.i18n('buttons.csv', 'CSV');
	},

	action: function (e, dt, button, config, cb) {
		// Set the text
		var output = _exportData(dt, config).str;
		var info = dt.buttons.exportInfo(config);
		var charset = config.charset;

		if (config.customize) {
			output = config.customize(output, config, dt);
		}

		if (charset !== false) {
			if (!charset) {
				charset = document.characterSet || document.charset;
			}

			if (charset) {
				charset = ';charset=' + charset;
			}
		}
		else {
			charset = '';
		}

		if (config.bom) {
			output = String.fromCharCode(0xfeff) + output;
		}

		_saveAs(
			new Blob([output], { type: 'text/csv' + charset }),
			info.filename,
			true
		);

		cb();
	},

	async: 100,

	filename: '*',

	extension: '.csv',

	exportOptions: {
		escapeExcelFormula: true
	},

	fieldSeparator: ',',

	fieldBoundary: '"',

	escapeChar: '"',

	charset: null,

	header: true,

	footer: true
};

//
// Excel (xlsx) export
//
DataTable.ext.buttons.excelHtml5 = {
	className: 'buttons-excel buttons-html5',

	available: function () {
		return (
			window.FileReader !== undefined &&
			_jsZip() !== undefined &&
			!_isDuffSafari() &&
			_serialiser
		);
	},

	text: function (dt) {
		return dt.i18n('buttons.excel', 'Excel');
	},

	action: function (e, dt, button, config, cb) {
		var rowPos = 0;
		var dataStartRow, dataEndRow;
		var getXml = function (type) {
			var str = excelStrings[type];

			//str = str.replace( /xmlns:/g, 'xmlns_' ).replace( /mc:/g, 'mc_' );

			return $.parseXML(str);
		};
		var rels = getXml('xl/worksheets/sheet1.xml');
		var relsGet = rels.getElementsByTagName('sheetData')[0];

		var xlsx = {
			_rels: {
				'.rels': getXml('_rels/.rels')
			},
			xl: {
				_rels: {
					'workbook.xml.rels': getXml('xl/_rels/workbook.xml.rels')
				},
				'workbook.xml': getXml('xl/workbook.xml'),
				'styles.xml': getXml('xl/styles.xml'),
				worksheets: {
					'sheet1.xml': rels
				}
			},
			'[Content_Types].xml': getXml('[Content_Types].xml')
		};

		var data = dt.buttons.exportData(config.exportOptions);
		var currentRow, rowNode;
		var addRow = function (row) {
			currentRow = rowPos + 1;
			rowNode = _createNode(rels, 'row', { attr: { r: currentRow } });

			for (var i = 0, ien = row.length; i < ien; i++) {
				// Concat both the Cell Columns as a letter and the Row of the cell.
				var cellId = createCellPos(i) + '' + currentRow;
				var cell = null;

				// For null, undefined of blank cell, continue so it doesn't create the _createNode
				if (row[i] === null || row[i] === undefined || row[i] === '') {
					if (config.createEmptyCells === true) {
						row[i] = '';
					}
					else {
						continue;
					}
				}

				var originalContent = row[i];
				row[i] =
					typeof row[i].trim === 'function' ? row[i].trim() : row[i];

				// Special number formatting options
				for (var j = 0, jen = _excelSpecials.length; j < jen; j++) {
					var special = _excelSpecials[j];

					// TODO Need to provide the ability for the specials to say
					// if they are returning a string, since at the moment it is
					// assumed to be a number
					if (
						row[i].match &&
						!row[i].match(/^0\d+/) &&
						row[i].match(special.match)
					) {
						var val = row[i].replace(/[^\d\.\-]/g, '');

						if (special.fmt) {
							val = special.fmt(val);
						}

						cell = _createNode(rels, 'c', {
							attr: {
								r: cellId,
								s: special.style
							},
							children: [_createNode(rels, 'v', { text: val })]
						});

						break;
					}
				}

				if (!cell) {
					if (
						typeof row[i] === 'number' ||
						(row[i].match &&
							row[i].match(/^-?\d+(\.\d+)?([eE]\-?\d+)?$/) && // Includes exponential format
							!row[i].match(/^0\d+/))
					) {
						// Detect numbers - don't match numbers with leading zeros
						// or a negative anywhere but the start
						cell = _createNode(rels, 'c', {
							attr: {
								t: 'n',
								r: cellId
							},
							children: [_createNode(rels, 'v', { text: row[i] })]
						});
					}
					else {
						// String output - replace non standard characters for text output
						/*eslint no-control-regex: "off"*/
						var text = !originalContent.replace
							? originalContent
							: originalContent.replace(
									/[\x00-\x09\x0B\x0C\x0E-\x1F\x7F-\x9F]/g,
									''
							);

						cell = _createNode(rels, 'c', {
							attr: {
								t: 'inlineStr',
								r: cellId
							},
							children: {
								row: _createNode(rels, 'is', {
									children: {
										row: _createNode(rels, 't', {
											text: text,
											attr: {
												'xml:space': 'preserve'
											}
										})
									}
								})
							}
						});
					}
				}

				rowNode.appendChild(cell);
			}

			relsGet.appendChild(rowNode);
			rowPos++;
		};

		var addHeader = function (structure) {
			structure.forEach(function (row) {
				addRow(
					row.map(function (cell) {
						return cell ? cell.title : '';
					}),
					rowPos
				);
				$('row:last c', rels).attr('s', '2'); // bold

				// Add any merge cells
				row.forEach(function (cell, columnCounter) {
					if (cell && (cell.colSpan > 1 || cell.rowSpan > 1)) {
						_excelMergeCells(
							rels,
							rowPos,
							columnCounter,
							cell.rowSpan,
							cell.colSpan
						);
					}
				});
			});
		};

		// Title and top messages
		var exportInfo = dt.buttons.exportInfo(config);
		if (exportInfo.title) {
			addRow([exportInfo.title], rowPos);
			_excelMergeCells(rels, rowPos, 0, 1, data.header.length);
			$('row:last c', rels).attr('s', '51'); // centre
		}

		if (exportInfo.messageTop) {
			addRow([exportInfo.messageTop], rowPos);
			_excelMergeCells(rels, rowPos, 0, 1, data.header.length);
		}

		// Table header
		if (config.header) {
			addHeader(data.headerStructure);
		}

		dataStartRow = rowPos;

		// Table body
		for (var n = 0, ie = data.body.length; n < ie; n++) {
			addRow(data.body[n], rowPos);
		}

		dataEndRow = rowPos;

		// Table footer
		if (config.footer && data.footer) {
			addHeader(data.footerStructure);
		}

		// Below the table
		if (exportInfo.messageBottom) {
			addRow([exportInfo.messageBottom], rowPos);
			_excelMergeCells(rels, rowPos, 0, 1, data.header.length);
		}

		// Set column widths
		var cols = _createNode(rels, 'cols');
		$('worksheet', rels).prepend(cols);

		for (var i = 0, ien = data.header.length; i < ien; i++) {
			cols.appendChild(
				_createNode(rels, 'col', {
					attr: {
						min: i + 1,
						max: i + 1,
						width: _excelColWidth(data, i),
						customWidth: 1
					}
				})
			);
		}

		// Workbook modifications
		var workbook = xlsx.xl['workbook.xml'];

		$('sheets sheet', workbook).attr('name', _sheetname(config));

		// Auto filter for columns
		if (config.autoFilter) {
			$('mergeCells', rels).before(
				_createNode(rels, 'autoFilter', {
					attr: {
						ref:
							'A' +
							dataStartRow +
							':' +
							createCellPos(data.header.length - 1) +
							dataEndRow
					}
				})
			);

			$('definedNames', workbook).append(
				_createNode(workbook, 'definedName', {
					attr: {
						name: '_xlnm._FilterDatabase',
						localSheetId: '0',
						hidden: 1
					},
					text:
						'\'' +
						_sheetname(config).replace(/'/g, '\'\'') +
						'\'!$A$' +
						dataStartRow +
						':' +
						createCellPos(data.header.length - 1) +
						dataEndRow
				})
			);
		}

		// Let the developer customise the document if they want to
		if (config.customize) {
			config.customize(xlsx, config, dt);
		}

		// Excel doesn't like an empty mergeCells tag
		if ($('mergeCells', rels).children().length === 0) {
			$('mergeCells', rels).remove();
		}

		var jszip = _jsZip();
		var zip = new jszip();
		var zipConfig = {
			compression: 'DEFLATE',
			type: 'blob',
			mimeType:
				'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
		};

		_addToZip(zip, xlsx);

		// Modern Excel has a 218 character limit on the file name + path of the file (why!?)
		// https://support.microsoft.com/en-us/office/excel-specifications-and-limits-1672b34d-7043-467e-8e27-269d656771c3
		// So we truncate to allow for this.
		var filename = exportInfo.filename;

		if (filename > 175) {
			filename = filename.substr(0, 175);
		}

		// Let the developer customize the final zip file if they want to before it is generated and sent to the browser
		if (config.customizeZip) {
			config.customizeZip(zip, data, filename);
		}


		if (zip.generateAsync) {
			// JSZip 3+
			zip.generateAsync(zipConfig).then(function (blob) {
				_saveAs(blob, filename);
				cb();
			});
		}
		else {
			// JSZip 2.5
			_saveAs(zip.generate(zipConfig), filename);
			cb();
		}
	},

	async: 100,

	filename: '*',

	extension: '.xlsx',

	exportOptions: {},

	header: true,

	footer: true,

	title: '*',

	messageTop: '*',

	messageBottom: '*',

	createEmptyCells: false,

	autoFilter: false,

	sheetName: ''
};

//
// PDF export - using pdfMake - http://pdfmake.org
//
DataTable.ext.buttons.pdfHtml5 = {
	className: 'buttons-pdf buttons-html5',

	available: function () {
		return window.FileReader !== undefined && _pdfMake();
	},

	text: function (dt) {
		return dt.i18n('buttons.pdf', 'PDF');
	},

	action: function (e, dt, button, config, cb) {
		var data = dt.buttons.exportData(config.exportOptions);
		var info = dt.buttons.exportInfo(config);
		var rows = [];

		if (config.header) {
			data.headerStructure.forEach(function (row) {
				rows.push(
					row.map(function (cell) {
						return cell
							? {
									text: cell.title,
									colSpan: cell.colspan,
									rowSpan: cell.rowspan,
									style: 'tableHeader'
							}
							: {};
					})
				);
			});
		}

		for (var i = 0, ien = data.body.length; i < ien; i++) {
			rows.push(
				data.body[i].map(function (d) {
					return {
						text:
							d === null || d === undefined
								? ''
								: typeof d === 'string'
								? d
								: d.toString()
					};
				})
			);
		}

		if (config.footer) {
			data.footerStructure.forEach(function (row) {
				rows.push(
					row.map(function (cell) {
						return cell
							? {
									text: cell.title,
									colSpan: cell.colspan,
									rowSpan: cell.rowspan,
									style: 'tableFooter'
							}
							: {};
					})
				);
			});
		}

		var doc = {
			pageSize: config.pageSize,
			pageOrientation: config.orientation,
			content: [
				{
					style: 'table',
					table: {
						headerRows: data.headerStructure.length,
						footerRows: data.footerStructure.length, // Used for styling, doesn't do anything in pdfmake
						body: rows
					},
					layout: {
						hLineWidth: function (i, node) {
							if (i === 0 || i === node.table.body.length) {
								return 0;
							}
							return 0.5;
						},
						vLineWidth: function () {
							return 0;
						},
						hLineColor: function (i, node) {
							return i === node.table.headerRows ||
								i ===
									node.table.body.length -
										node.table.footerRows
								? '#333'
								: '#ddd';
						},
						fillColor: function (rowIndex) {
							if (rowIndex < data.headerStructure.length) {
								return '#fff';
							}
							return rowIndex % 2 === 0 ? '#f3f3f3' : null;
						},
						paddingTop: function () {
							return 5;
						},
						paddingBottom: function () {
							return 5;
						}
					}
				}
			],
			styles: {
				tableHeader: {
					bold: true,
					fontSize: 11,
					alignment: 'center'
				},
				tableFooter: {
					bold: true,
					fontSize: 11,
					alignment: 'center'
				},
				table: {
					margin: [0, 5, 0, 5]
				},
				title: {
					alignment: 'center',
					fontSize: 13
				},
				message: {}
			},
			defaultStyle: {
				fontSize: 10
			}
		};

		if (info.messageTop) {
			doc.content.unshift({
				text: info.messageTop,
				style: 'message',
				margin: [0, 0, 0, 12]
			});
		}

		if (info.messageBottom) {
			doc.content.push({
				text: info.messageBottom,
				style: 'message',
				margin: [0, 0, 0, 12]
			});
		}

		if (info.title) {
			doc.content.unshift({
				text: info.title,
				style: 'title',
				margin: [0, 0, 0, 12]
			});
		}

		if (config.customize) {
			config.customize(doc, config, dt);
		}

		var pdf = _pdfMake().createPdf(doc);

		if (config.download === 'open' && !_isDuffSafari()) {
			pdf.open();
		}
		else {
			pdf.download(info.filename);
		}

		cb();
	},

	async: 100,

	title: '*',

	filename: '*',

	extension: '.pdf',

	exportOptions: {},

	orientation: 'portrait',

	// This isn't perfect, but it is close
	pageSize:
		navigator.language === 'en-US' || navigator.language === 'en-CA'
			? 'LETTER'
			: 'A4',

	header: true,

	footer: true,

	messageTop: '*',

	messageBottom: '*',

	customize: null,

	download: 'download'
};


export default DataTable;