fix: Avoid running the cost job in import preview

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

@@ -0,0 +1,104 @@
+import { Service } from 'typedi';
+import { AsyncLocalStorage } from 'async_hooks';
+
+@Service()
+export class ImportAls {
+  private als: AsyncLocalStorage<Map<string, any>>;
+
+  constructor() {
+    this.als = new AsyncLocalStorage();
+  }
+  /**
+   * Runs a callback function within the context of a new AsyncLocalStorage store.
+   * @param callback The function to be executed within the AsyncLocalStorage context.
+   * @returns The result of the callback function.
+   */
+  public run<T>(callback: () => T): T {
+    return this.als.run<T>(new Map(), callback);
+  }
+
+  /**
+   * Runs a callback function in preview mode within the AsyncLocalStorage context.
+   * @param callback The function to be executed in preview mode.
+   * @returns The result of the callback function.
+   */
+  public runPreview<T>(callback: () => T): T {
+    return this.run(() => {
+      this.markAsImport();
+      this.markAsImportPreview();
+      return callback();
+    });
+  }
+
+  /**
+   * Runs a callback function in commit mode within the AsyncLocalStorage context.
+   * @param {() => T} callback - The function to be executed in commit mode.
+   * @returns {T} The result of the callback function.
+   */
+  public runCommit<T>(callback: () => T): T {
+    return this.run(() => {
+      this.markAsImport();
+      this.markAsImportCommit();
+      return callback();
+    });
+  }
+
+  /**
+   * Retrieves the current AsyncLocalStorage store.
+   * @returns The current store or undefined if not in a valid context.
+   */
+  public getStore(): Map<string, any> | undefined {
+    return this.als.getStore();
+  }
+
+  /**
+   * Marks the current context as an import operation.
+   * @param flag Boolean flag to set or unset the import status. Defaults to true.
+   */
+  public markAsImport(flag: boolean = true): void {
+    const store = this.getStore();
+    store?.set('isImport', flag);
+  }
+
+  /**
+   * Marks the current context as an import commit operation.
+   * @param flag Boolean flag to set or unset the import commit status. Defaults to true.
+   */
+  public markAsImportCommit(flag: boolean = true): void {
+    const store = this.getStore();
+    store?.set('isImportCommit', flag);
+  }
+
+  /**
+   * Marks the current context as an import preview operation.
+   * @param {boolean} flag - Boolean flag to set or unset the import preview status. Defaults to true.
+   */
+  public markAsImportPreview(flag: boolean = true): void {
+    const store = this.getStore();
+    store?.set('isImportPreview', flag);
+  }
+
+  /**
+   * Checks if the current context is an import operation.
+   * @returns {boolean} True if the context is an import operation, false otherwise.
+   */
+  public isImport(): boolean {
+    return !!this.getStore()?.get('isImport');
+  }
+
+  /**
+   * Checks if the current context is an import commit operation.
+   * @returns {boolean} True if the context is an import commit operation, false otherwise.
+   */
+  public isImportCommit(): boolean {
+    return !!this.getStore()?.get('isImportCommit');
+  }
+
+  /**
+   * Checks if the current context is an import preview operation.
+   * @returns {boolean} True if the context is an import preview operation, false otherwise.
+   */
+  public isImportPreview(): boolean {
+    return !!this.getStore()?.get('isImportPreview');
+  }
+}