feat: import resources from csv/xlsx

packages/server/src/services/Import/ImportFileMapping.ts

@@ -0,0 +1,36 @@
+import { Inject, Service } from 'typedi';
+import HasTenancyService from '../Tenancy/TenancyService';
+import { ImportMappingAttr } from './interfaces';
+
+@Service()
+export class ImportFileMapping {
+  @Inject()
+  private tenancy: HasTenancyService;
+
+  /**
+   * Mapping the excel sheet columns with resource columns.
+   * @param {number} tenantId
+   * @param {number} importId
+   * @param {ImportMappingAttr} maps
+   */
+  public async mapping(
+    tenantId: number,
+    importId: number,
+    maps: ImportMappingAttr[]
+  ) {
+    const { Import } = this.tenancy.models(tenantId);
+
+    const importFile = await Import.query()
+      .findOne('filename', importId)
+      .throwIfNotFound();
+
+    // @todo validate the resource columns.
+    // @todo validate the sheet columns.
+
+    const mappingStringified = JSON.stringify(maps);
+
+    await Import.query().findById(importFile.id).patch({
+      mapping: mappingStringified,
+    });
+  }
+}