import Macroable from '@poppinss/macroable';
import { SizeValidator } from './validators/size.ts';
import { ExtensionValidator } from './validators/extensions.ts';
import type { FileJSON, FileUploadError, FileValidationOptions } from '../types.ts';
declare const STORE_IN_FLASH: unique symbol;
/**
 * The file holds the meta/data for an uploaded file, along with
 * any errors that occurred during the upload process.
 */
export declare class MultipartFile extends Macroable {
    [STORE_IN_FLASH]: boolean;
    /**
     * File validators for size and extension validation
     */
    sizeValidator: SizeValidator;
    extensionValidator: ExtensionValidator;
    /**
     * A boolean to know if file is an instance of this class
     * or not
     */
    isMultipartFile: true;
    /**
     * Field name is the name of the field
     */
    fieldName: string;
    /**
     * Client name is the file name on the user client
     */
    clientName: string;
    /**
     * The headers sent as part of the multipart request
     */
    headers: Record<string, any>;
    /**
     * File size in bytes
     */
    size: number;
    /**
     * The extension for the file
     */
    extname?: string;
    /**
     * Upload errors that occurred during processing
     */
    errors: FileUploadError[];
    /**
     * Type and subtype are extracted from the `content-type`
     * header or from the file magic number
     */
    type?: string;
    subtype?: string;
    /**
     * File path is only set after the move operation
     */
    filePath?: string;
    /**
     * File name is only set after the move operation. It is the relative
     * path of the moved file
     */
    fileName?: string;
    /**
     * Temporary path, only exists when file is uploaded using the
     * classic mode
     */
    tmpPath?: string;
    /**
     * The file metadata
     */
    meta: any;
    /**
     * The current state of the file
     */
    state: 'idle' | 'streaming' | 'consumed' | 'moved';
    /**
     * Whether or not the validations have been executed
     */
    get validated(): boolean;
    /**
     * A boolean to know if file has one or more errors
     */
    get isValid(): boolean;
    /**
     * Opposite of [[this.isValid]]
     */
    get hasErrors(): boolean;
    /**
     * The maximum file size limit
     */
    get sizeLimit(): number | string | undefined;
    set sizeLimit(limit: number | string | undefined);
    /**
     * Extensions allowed
     */
    get allowedExtensions(): string[] | undefined;
    set allowedExtensions(extensions: string[] | undefined);
    /**
     * Creates a new MultipartFile instance
     *
     * @param data - Object containing field name, client name, and headers
     * @param validationOptions - Validation options for the file
     */
    constructor(data: {
        fieldName: string;
        clientName: string;
        headers: any;
    }, validationOptions: Partial<FileValidationOptions>);
    /**
     * Runs all configured validators (size and extension) on the file.
     * Validation results are stored in the errors array.
     *
     * @example
     * ```ts
     * file.sizeLimit = '2mb'
     * file.allowedExtensions = ['jpg', 'png']
     * file.validate()
     *
     * if (!file.isValid) {
     *   console.log(file.errors)
     * }
     * ```
     */
    validate(): void;
    /**
     * Mark file as moved to its final destination
     *
     * @param fileName - The name of the moved file
     * @param filePath - The full path where the file was moved
     */
    markAsMoved(fileName: string, filePath: string): void;
    /**
     * Moves the file from its temporary location to a permanent destination.
     * Can be called multiple times to copy the file to multiple locations.
     *
     * @param location - The destination directory path
     * @param options - Move options including custom filename and overwrite flag
     *
     * @example
     * ```ts
     * const avatar = request.file('avatar')
     *
     * if (avatar) {
     *   await avatar.move(app.publicPath('uploads'), {
     *     name: `${Date.now()}.${avatar.extname}`,
     *     overwrite: true
     *   })
     * }
     * ```
     */
    move(location: string, options?: {
        name?: string;
        overwrite?: boolean;
    }): Promise<void>;
    /**
     * Serializes the file to a JSON-compatible object containing all metadata,
     * validation state, and file paths.
     *
     * @example
     * ```ts
     * const file = request.file('avatar')
     * console.log(file?.toJSON())
     * // {
     * //   fieldName: 'avatar',
     * //   clientName: 'profile.jpg',
     * //   size: 45056,
     * //   extname: 'jpg',
     * //   type: 'image',
     * //   subtype: 'jpeg',
     * //   state: 'consumed',
     * //   isValid: true,
     * //   validated: true,
     * //   errors: []
     * // }
     * ```
     */
    toJSON(): FileJSON;
}
export {};