(function ($) {
    //document.writeln("<script src='/Scripts/excellentexport.js' type='text/javascript'></script>");
    //document.writeln("<script>alert(1)</script>");
    $.fn.exportToExcel = function (option) {
        //if ($("script[src*='excellentexport.js']").length == 0) {
        //    var scriptEle = document.createElement("script");
        //    scriptEle.src = "/Scripts/excellentexport.js";
        //    scriptEle.type = 'text/javascript';
        //    document.getElementsByTagName('head')[0].appendChild(scriptEle);
        //}
        var callbackFunc = function () {
            var defaultOp = {
                url: null,
                postData: {},
                colModel: [],
                remote: false,
                data: [],
                sheetName: "sheet1",
                fileName: "file",
                fileType: "xls",
                groupHeader: null,
                numberWithTab: true
            };
            var op = $.extend(defaultOp, option);

            var getValByFieldName = function (model, fieldName) {
                if (model == undefined || model == null || typeof model != "object") {
                    return model;
                }
                if (model.hasOwnProperty(fieldName)) {
                    return model[fieldName];
                }
                var index = fieldName.indexOf(".");
                var frontFieldName = fieldName.substr(0, index);
                var backFieldName = fieldName.substr(index + 1);

                return getValByFieldName(model[frontFieldName], backFieldName);
            }

            var exportDataToExcel = function (data) {
                var colModel = op.colModel;
                var groupHeader = op.groupHeader;
                var groupHeaders, groupIndex, isInGroup, groupColumnCount;
                if (groupHeader) {
                    groupHeaders = groupHeader.groupHeaders;
                    groupIndex = 0;
                    isInGroup = false;
                    groupColumnCount = 0;
                }
                if (colModel.length <= 0) {
                    return;
                }
                var html = "<table id='exportTable99'>";
                html += "<thead><tr>";
                if (groupHeader) {
                    for (var i = 0; i < colModel.length; i++) {
                        var colSpan = "";
                        if (groupHeaders[groupIndex] && groupHeaders[groupIndex].startColumnName == colModel[i].fieldName) {
                            isInGroup = true;
                            colSpan = `colspan='${groupHeaders[groupIndex].numberOfColumns}'`;
                            html += "<th {0}>{1}</th>".template(colSpan, groupHeaders[groupIndex].title);
                            groupColumnCount++;
                        } else if (groupHeaders[groupIndex] && isInGroup) {
                            groupColumnCount++;
                            if (groupColumnCount >= groupHeaders[groupIndex].numberOfColumns) {
                                groupIndex++;
                                isInGroup = false;
                                groupColumnCount = 0;
                            }
                        } else {
                            html += "<th rowspan='2'>{0}</th>".template(colModel[i].colName);
                        }
                    }
                    html += "</tr><tr>";
                    isInGroup = false;
                    groupIndex = 0;
                    groupColumnCount = 0;
                    for (var i = 0; i < colModel.length; i++) {
                        if (groupHeaders[groupIndex] && groupHeaders[groupIndex].startColumnName == colModel[i].fieldName) {
                            html += "<th>{0}</th>".template(colModel[i].colName);
                            isInGroup = true;
                            groupColumnCount++;
                        } else if (groupHeaders[groupIndex] && isInGroup) {
                            html += "<th>{0}</th>".template(colModel[i].colName);
                            groupColumnCount++;
                            if (groupColumnCount >= groupHeaders[groupIndex].numberOfColumns) {
                                groupIndex++;
                                isInGroup = false;
                                groupColumnCount = 0;
                            }
                        }
                    }
                } else {
                    for (var i = 0; i < colModel.length; i++) {
                        html += "<th>{0}</th>".template(colModel[i].colName);
                    }
                }
                html += "</tr></thead>";
                html += "<tbody>";
                if (data.length > 0) {
                    for (var i = 0; i < data.length; i++) {
                        html += "<tr>";
                        for (var j = 0; j < colModel.length; j++) {
                            var fieldName = colModel[j].fieldName;
                            var colValue = getValByFieldName(data[i], fieldName);
                            var styleStr = "";

                            if (colModel[j].cellattr && typeof colModel[j].cellattr == "function") {
                                styleStr = colModel[j].cellattr(colValue, data[i], j);
                            }
                            if (colValue !== "" && colModel[j].formatter) {
                                if (typeof colModel[j].formatter == "string") {
                                    switch (colModel[j].formatter) {
                                        case "number":
                                            colValue = numeral(colValue).format("0.00");
                                            if (colValue === "NaN") {
                                                colValue = "0.00";
                                            } else if (op.fileType == "csv" && op.numberWithTab) {
                                                colValue = colValue;   //先把前面的\t去掉，有需求的时候再改
                                            }
                                            break;
                                        case "number2":
                                            colValue = numeral(colValue).format("0,0.00");
                                            if (colValue === "NaN") {
                                                colValue = "0.00";
                                            }
                                            break;
                                        case "date":
                                            if (colValue == undefined || colValue == null) {
                                                colValue = "";
                                            } else {
                                                colValue = moment(colValue).format("YYYY-MM-DD");
                                            }
                                            break;
                                        case "datetime":
                                            if (colValue == undefined || colValue == null) {
                                                colValue = "";
                                            } else {
                                                colValue = moment(colValue).format("YYYY-MM-DD HH:mm:ss");
                                            }
                                            break;
                                        case "text":
                                            if (colValue == undefined || colValue == null) {
                                                colValue = "";
                                            } else {
                                                colValue = colValue;
                                            }
                                            if (!styleStr) {
                                                styleStr = "style=";
                                            }
                                            styleStr += "\"mso-number-format:'\@';\"";
                                            break;
                                    }
                                } else if (typeof colModel[j].formatter == "function") {
                                    colValue = colModel[j].formatter(colValue, data[i], j);
                                }
                            }
                            if (colValue == undefined || colValue == null) {
                                colValue = "";
                            }

                            html += "<td " + styleStr + ">{0}</td>".template(colValue);
                        }
                        html += "</tr>";
                    }
                }
                html += "</tbody></table>";
                if ($("#createInvote99").length <= 0) {
                    $(document.body)
                        .append(
                            '<a onfocus="this.blur(); " style="display: none; " download="{0}" id="createInvote99" class="ipt - todo hide">code</a>'
                                .template(op.fileName + "." + op.fileType));

                    $('#createInvote99').click(
                        function () {
                            var tempTrim = String.prototype.trim;
                            String.prototype.trim = function () {
                                var firstChar = "";
                                if (this.indexOf("\t") == 0) {
                                    firstChar = "\t";
                                }
                                return firstChar + this.replace(/(^\s*)|(\s*$)/g, "");
                            };

                            if (op.fileType == "xls") {
                                ExcellentExport.excel(this, 'exportTable99', op.sheetName);
                            } else {
                                ExcellentExport.csv(this, 'exportTable99');
                            }

                            String.prototype.trim = tempTrim;
                        }
                    );
                }
                $("#createInvote99").attr("download", op.fileName + "." + op.fileType);
                if ($("#exportDiv99").length <= 0) {
                    $(document.body).append("<div style='display:none' id='exportDiv99'>{0}</div>".template(html));
                } else {
                    $("#exportDiv99").html(html);
                }
                document.getElementById('createInvote99').click();
            }

            if (op.remote) {
                main.post(op.url, op.postData).done(function (result) {
                    if (result.success && result.obj) {
                        exportDataToExcel(result.obj);
                    } else if (result instanceof Array) {
                        exportDataToExcel(result);
                    } else if (!main.isEmpty(result.rows)) {
                        exportDataToExcel(result.rows);
                    }
                });
            } else if (!main.isEmpty(op.data)) {
                exportDataToExcel(op.data);
            }
        }

        if ($("script[src*='excellentexport.js']").length == 0) {
            main.loadJs("/Statics/libs/export/excellentexport.js", callbackFunc);
        } else {
            callbackFunc();
        }
    }
})(jQuery)