import { Tree, UpdateRecorder } from '@angular-devkit/schematics';
import * as ts from 'typescript';
import { Path } from '@angular-devkit/core';
/**
 * Retrieves the file path of the application's configuration used in a standalone
 * Angular application setup.
 *
 * This function locates the `bootstrapApplication` call in the main entry file and
 * resolves the path to the configuration object passed to it (typically `appConfig`).
 *
 * @param host - The virtual file system tree used by Angular schematics.
 * @param mainFilePath - The path to the main entry file of the Angular application (e.g., `main.ts`).
 * @returns The resolved file path of the application's configuration, or an empty string if not found.
 */
export declare const getAppConfigPath: (host: Tree, mainFilePath: string) => string;
/**
 * Attempts to locate the file path of the `routes` array used in a standalone
 * Angular application configuration.
 *
 * This function resolves the application's config file (typically where `routes` is defined or imported),
 * parses the file, and inspects its import declarations to find the import associated with `routes`.
 * It then resolves and normalizes the file path of the `routes` definition and returns it.
 *
 * @param tree - The virtual file system tree used by Angular schematics.
 * @param mainFilePath - The path to the main entry file of the Angular application (e.g., `main.ts`).
 * @returns The normalized workspace-relative path to the file where `routes` is defined, or `null` if not found.
 * @throws If the `routes` import path is found but the file does not exist in the tree.
 */
export declare function findAppRoutesPath(tree: Tree, mainFilePath: string): Path | null;
/**
 * Checks whether a specific provider is registered in the `providers` array of the
 * standalone application configuration (typically within `app.config.ts`) in an Angular project.
 *
 * This function reads and parses the application configuration file, looks for the
 * `providers` property in the configuration object, and checks whether it includes
 * the specified provider name.
 *
 * @param host - The virtual file system tree used by Angular schematics.
 * @param projectName - The name of the Angular project.
 * @param providerName - The name of the provider to search for (as a string match).
 * @returns A promise that resolves to `true` if the provider is found, otherwise `false`.
 * @throws SchematicsException if the app config file cannot be read.
 */
export declare const hasProviderInStandaloneAppConfig: (host: Tree, projectName: string, providerName: string) => Promise<boolean>;
/**
 * Cleans up empty or invalid expressions (e.g., extra or trailing commas) from the
 * `providers` array within a standalone Angular application configuration object.
 *
 * This function parses the source file's AST to locate variable declarations that
 * define an object literal. It then searches for a `providers` property and removes
 * any empty elements from its array literal, replacing it with a cleaned version.
 *
 * Typically used in Angular schematics to ensure the `providers` array in `app.config.ts`
 * is free of empty slots after modifications.
 *
 * @param source - The TypeScript source file containing the app configuration.
 * @param recorder - The recorder used to apply changes to the source file.
 */
export declare function cleanEmptyExprFromProviders(source: ts.SourceFile, recorder: UpdateRecorder): void;