ngx-gem-spaas
Version:
This library contains services, components, images and styles to provide a unified look and way-of-working throughout GEM SPaaS.
170 lines • 26.2 kB
JavaScript
import * as ExcelJS from 'exceljs';
import { Component, EventEmitter, Input, Output } from '@angular/core';
import { BaseComponent } from 'ngx-gem-spaas';
import { takeUntil } from "rxjs/operators";
import * as i0 from "@angular/core";
import * as i1 from "ngx-gem-spaas";
import * as i2 from "@angular/material/icon";
import * as i3 from "@angular/material/tooltip";
export class ExcelImportComponent extends BaseComponent {
static parseWorksheet(worksheet) {
const newSheet = { sheetData: [], sheetName: worksheet.name };
const sheetColumns = [];
worksheet.eachRow({ includeEmpty: false }, (row, rowNumber) => {
// set columns if not set yet
// do not rely on rowNumber to define the first row (being zero or one), it's the actual row number in excel
if (!sheetColumns.length) {
// take column header values from first row as attributes for the rows
row.eachCell({ includeEmpty: true }, (cell, colNumber) => {
sheetColumns.push('' + cell.value);
});
}
else {
// parse all other rows (so except the first one, which is considered to contain headers)
let rowData = {};
row.eachCell({ includeEmpty: true }, (cell, colNumber) => {
// colNumber is 1-based !!
if (sheetColumns[colNumber - 1] !== 'null') {
rowData[sheetColumns[colNumber - 1]] = cell.formula ? cell.result : cell.value;
}
});
newSheet.sheetData.push(rowData);
}
});
return newSheet;
}
constructor(settingsService, snackbarService) {
super();
this.settingsService = settingsService;
this.snackbarService = snackbarService;
// TOOLTIP MESSAGE
this.tooltipMsg = '';
// EMIT THE IMPORTED SHEETS
this.sheetsImported = new EventEmitter();
this.rawFileContent = null;
this.settings = null;
this.getSettings();
}
// ********************************************************************************************************
// LOAD DATA
// ********************************************************************************************************
getSettings() {
this.settingsService.onNewSettings()
.pipe(takeUntil(this.onDestroy$))
.subscribe((settings) => {
this.settings = settings;
if (!this.tooltipMsg) {
// set default label
this.tooltipMsg = 'import from ' + settings.exportExtension;
}
});
}
// ********************************************************************************************************
// PROCESS DATA
// ********************************************************************************************************
readFile(e) {
this.rawFileContent = null;
if (e?.target?.files && e.target.files.length === 1) {
const file = e.target.files[0];
// READ FILE IF EXCEL
const reader = new FileReader();
const isExcel = this.settings?.exportExtension === 'xlsx' && file.type.match('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
const isCsv = this.settings?.exportExtension === 'csv' && file.type.match('text/csv');
if (isExcel) {
reader.onloadend = () => {
// RESET UPLOADER
e.target.value = null;
// THEN PROCESS RESULT
this.rawFileContent = reader.result;
if (this.rawFileContent) {
this.parseExcel();
}
else {
this.snackbarService.message('File does not contain valid data');
}
};
reader.readAsArrayBuffer(file);
}
else if (isCsv) {
reader.onloadend = () => {
// RESET UPLOADER
e.target.value = null;
// THEN PROCESS RESULT
this.rawFileContent = reader.result;
if (this.rawFileContent) {
this.parseCsv();
}
else {
this.snackbarService.message('File does not contain valid data');
}
};
reader.readAsText(file);
}
else {
// neither a valid xlsx, nor a valid csv
this.snackbarService.message(`File type not supported (should be .${this.settings?.exportExtension})`);
}
}
}
parseExcel() {
const sheets = [];
const workBook = new ExcelJS.Workbook();
let hasAnyData = false;
workBook.xlsx.load(this.rawFileContent)
.then((wb) => {
if (wb.worksheets.length) {
wb.eachSheet((worksheet, sheetId) => {
const newSheet = ExcelImportComponent.parseWorksheet(worksheet);
hasAnyData = hasAnyData || newSheet.sheetData.length > 0;
sheets.push(newSheet);
});
this.emitSheets(hasAnyData, sheets);
}
else {
this.snackbarService.error('Your file does not contain any sheets');
}
})
.catch((reason) => {
this.snackbarService.error('There was an error importing your file: ' + reason);
return;
});
}
parseCsv() {
const sheet = { sheetName: 'csv import', sheetData: [] };
let dataHeaders = [];
const rows = ('' + this.rawFileContent).split('\n') || [];
for (const row of rows) {
const cells = row.split(this.settings?.getCsvDelimiter() || ',');
if (!dataHeaders.length) {
// take first row with data as headers
dataHeaders = cells;
continue;
}
const newRow = {};
for (let cellIdx = 0; cellIdx < cells.length; cellIdx++) {
newRow[dataHeaders[cellIdx]] = cells[cellIdx];
}
sheet.sheetData.push(newRow);
}
this.emitSheets(sheet.sheetData.length > 0, [sheet]);
}
emitSheets(hasAnyData, sheets) {
if (!hasAnyData) {
this.snackbarService.error('Your file does not contain any data, are you sure you uploaded the correct one?');
}
else {
this.sheetsImported.emit(sheets.sort((a, b) => a.sheetName < b.sheetName ? -1 : 1));
}
}
static { this.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: ExcelImportComponent, deps: [{ token: i1.SettingsService }, { token: i1.SnackbarService }], target: i0.ɵɵFactoryTarget.Component }); }
static { this.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "14.0.0", version: "17.3.12", type: ExcelImportComponent, selector: "spaas-excel-import", inputs: { tooltipMsg: "tooltipMsg" }, outputs: { sheetsImported: "sheetsImported" }, usesInheritance: true, ngImport: i0, template: "<label>\r\n <mat-icon [matTooltip]=\"tooltipMsg\"\r\n matTooltipPosition=\"below\"\r\n fontIcon=\"file_upload\">\r\n </mat-icon>\r\n <input type=\"file\"\r\n (change)=\"readFile($event);\">\r\n</label>\r\n", styles: ["input[type=file]{display:none}\n"], dependencies: [{ kind: "component", type: i2.MatIcon, selector: "mat-icon", inputs: ["color", "inline", "svgIcon", "fontSet", "fontIcon"], exportAs: ["matIcon"] }, { kind: "directive", type: i3.MatTooltip, selector: "[matTooltip]", inputs: ["matTooltipPosition", "matTooltipPositionAtOrigin", "matTooltipDisabled", "matTooltipShowDelay", "matTooltipHideDelay", "matTooltipTouchGestures", "matTooltip", "matTooltipClass"], exportAs: ["matTooltip"] }] }); }
}
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "17.3.12", ngImport: i0, type: ExcelImportComponent, decorators: [{
type: Component,
args: [{ selector: 'spaas-excel-import', template: "<label>\r\n <mat-icon [matTooltip]=\"tooltipMsg\"\r\n matTooltipPosition=\"below\"\r\n fontIcon=\"file_upload\">\r\n </mat-icon>\r\n <input type=\"file\"\r\n (change)=\"readFile($event);\">\r\n</label>\r\n", styles: ["input[type=file]{display:none}\n"] }]
}], ctorParameters: () => [{ type: i1.SettingsService }, { type: i1.SnackbarService }], propDecorators: { tooltipMsg: [{
type: Input
}], sheetsImported: [{
type: Output
}] } });
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* as ExcelJS from 'exceljs';\r\nimport {Component, EventEmitter, Input, Output} from '@angular/core';\r\nimport {BaseComponent, SettingsModel, SettingsService, SnackbarService} from 'ngx-gem-spaas';\r\nimport {takeUntil} from \"rxjs/operators\";\r\nimport {ExcelSheetModel} from \"../_models/excel.model\";\r\n\r\n@Component({\r\n  selector: 'spaas-excel-import',\r\n  styleUrls: ['./excel-import.component.scss'],\r\n  templateUrl: './excel-import.component.html',\r\n})\r\n\r\nexport class ExcelImportComponent extends BaseComponent {\r\n\r\n  // TOOLTIP MESSAGE\r\n  @Input() tooltipMsg = '';\r\n\r\n  // EMIT THE IMPORTED SHEETS\r\n  @Output() sheetsImported = new EventEmitter<ExcelSheetModel[]>();\r\n\r\n  rawFileContent: ArrayBuffer | string | null = null;\r\n\r\n  private settings: SettingsModel | null = null;\r\n\r\n  private static parseWorksheet(\r\n    worksheet: ExcelJS.Worksheet\r\n  ): ExcelSheetModel {\r\n\r\n    const newSheet: ExcelSheetModel = {sheetData: [], sheetName: worksheet.name};\r\n    const sheetColumns: string[] = []\r\n\r\n    worksheet.eachRow({includeEmpty: false}, (row, rowNumber) => {\r\n\r\n      // set columns if not set yet\r\n      // do not rely on rowNumber to define the first row (being zero or one), it's the actual row number in excel\r\n      if (!sheetColumns.length) {\r\n        // take column header values from first row as attributes for the rows\r\n        row.eachCell({includeEmpty: true}, (cell, colNumber) => {\r\n          sheetColumns.push('' + cell.value);\r\n        });\r\n      } else {\r\n        // parse all other rows (so except the first one, which is considered to contain headers)\r\n        let rowData: any = {};\r\n        row.eachCell({includeEmpty: true}, (cell, colNumber) => {\r\n          // colNumber is 1-based !!\r\n          if (sheetColumns[colNumber - 1] !== 'null') {\r\n            rowData[sheetColumns[colNumber - 1]] = cell.formula ? cell.result : cell.value;\r\n          }\r\n        });\r\n        newSheet.sheetData.push(rowData);\r\n      }\r\n    });\r\n    return newSheet;\r\n  }\r\n\r\n  constructor(\r\n    private settingsService: SettingsService,\r\n    private snackbarService: SnackbarService,\r\n  ) {\r\n    super();\r\n    this.getSettings();\r\n  }\r\n\r\n  // ********************************************************************************************************\r\n  // LOAD DATA\r\n  // ********************************************************************************************************\r\n\r\n  private getSettings(): void {\r\n    this.settingsService.onNewSettings()\r\n      .pipe(takeUntil(this.onDestroy$))\r\n      .subscribe((settings) => {\r\n        this.settings = settings;\r\n        if (!this.tooltipMsg) {\r\n          // set default label\r\n          this.tooltipMsg = 'import from ' + settings.exportExtension\r\n        }\r\n      });\r\n  }\r\n\r\n  // ********************************************************************************************************\r\n  // PROCESS DATA\r\n  // ********************************************************************************************************\r\n\r\n  readFile(e: any): void {\r\n    this.rawFileContent = null;\r\n    if (e?.target?.files && e.target.files.length === 1) {\r\n      const file = e.target.files[0];\r\n      // READ FILE IF EXCEL\r\n      const reader = new FileReader();\r\n      const isExcel = this.settings?.exportExtension === 'xlsx' && file.type.match('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');\r\n      const isCsv = this.settings?.exportExtension === 'csv' && file.type.match('text/csv');\r\n\r\n      if (isExcel) {\r\n\r\n        reader.onloadend = () => {\r\n          // RESET UPLOADER\r\n          e.target.value = null;\r\n          // THEN PROCESS RESULT\r\n          this.rawFileContent = reader.result;\r\n          if (this.rawFileContent) {\r\n            this.parseExcel();\r\n          } else {\r\n            this.snackbarService.message('File does not contain valid data');\r\n          }\r\n        };\r\n        reader.readAsArrayBuffer(file);\r\n\r\n      } else if (isCsv) {\r\n\r\n        reader.onloadend = () => {\r\n          // RESET UPLOADER\r\n          e.target.value = null;\r\n          // THEN PROCESS RESULT\r\n          this.rawFileContent = reader.result;\r\n          if (this.rawFileContent) {\r\n            this.parseCsv();\r\n          } else {\r\n            this.snackbarService.message('File does not contain valid data');\r\n          }\r\n        };\r\n        reader.readAsText(file);\r\n\r\n      } else {\r\n        // neither a valid xlsx, nor a valid csv\r\n        this.snackbarService.message(`File type not supported (should be .${this.settings?.exportExtension})`);\r\n      }\r\n    }\r\n  }\r\n\r\n  private parseExcel(): void {\r\n\r\n    const sheets: ExcelSheetModel[] = [];\r\n    const workBook = new ExcelJS.Workbook();\r\n    let hasAnyData = false;\r\n\r\n    workBook.xlsx.load(this.rawFileContent as Buffer)\r\n      .then((wb) => {\r\n\r\n        if (wb.worksheets.length) {\r\n\r\n          wb.eachSheet((worksheet, sheetId) => {\r\n            const newSheet: ExcelSheetModel = ExcelImportComponent.parseWorksheet(worksheet);\r\n            hasAnyData = hasAnyData || newSheet.sheetData.length > 0;\r\n            sheets.push(newSheet);\r\n          });\r\n\r\n          this.emitSheets(\r\n            hasAnyData,\r\n            sheets,\r\n          )\r\n\r\n        } else {\r\n          this.snackbarService.error('Your file does not contain any sheets');\r\n        }\r\n\r\n      })\r\n      .catch((reason) => {\r\n        this.snackbarService.error('There was an error importing your file: ' + reason);\r\n        return;\r\n      })\r\n\r\n  }\r\n\r\n  private parseCsv(): void {\r\n\r\n    const sheet: ExcelSheetModel = {sheetName: 'csv import', sheetData: []};\r\n    let dataHeaders: string[] = [];\r\n    const rows = ('' + this.rawFileContent).split('\\n') || [];\r\n\r\n    for (const row of rows) {\r\n      const cells = row.split(this.settings?.getCsvDelimiter() || ',');\r\n      if (!dataHeaders.length) {\r\n        // take first row with data as headers\r\n        dataHeaders = cells;\r\n        continue;\r\n      }\r\n      const newRow: any = {};\r\n      for (let cellIdx = 0; cellIdx < cells.length; cellIdx++) {\r\n        newRow[dataHeaders[cellIdx]] = cells[cellIdx];\r\n      }\r\n      sheet.sheetData.push(newRow);\r\n    }\r\n\r\n    this.emitSheets(\r\n      sheet.sheetData.length > 0,\r\n      [sheet],\r\n    )\r\n\r\n  }\r\n\r\n  private emitSheets(\r\n    hasAnyData: boolean,\r\n    sheets: ExcelSheetModel[],\r\n  ): void {\r\n    if (!hasAnyData) {\r\n      this.snackbarService.error('Your file does not contain any data, are you sure you uploaded the correct one?');\r\n    } else {\r\n      this.sheetsImported.emit(sheets.sort((a, b) => a.sheetName < b.sheetName ? -1 : 1));\r\n    }\r\n  }\r\n\r\n}\r\n","<label>\r\n  <mat-icon [matTooltip]=\"tooltipMsg\"\r\n            matTooltipPosition=\"below\"\r\n            fontIcon=\"file_upload\">\r\n  </mat-icon>\r\n  <input type=\"file\"\r\n         (change)=\"readFile($event);\">\r\n</label>\r\n"]}