import busboy from 'busboy';
import { CelosiaRequest, CelosiaResponse } from '@celosiajs/core';
import QueryString from 'qs';
import { z } from 'zod';
import { ZodActualUploadedFileType } from './ZodUploadedFileType';
export declare enum ExceededLimitKind {
    FileSize = 0,
    FieldNameTruncated = 1,
    FieldValueTruncated = 2,
    Parts = 3,
    Files = 4,
    Fields = 5
}
export declare enum FileUploadErrorKind {
    FileStream = 0,
    Busboy = 1
}
export interface FileUploadErrorInfo {
    kind: FileUploadErrorKind;
    error: Error;
}
export type ExceededLimitInfo = {
    kind: ExceededLimitKind.FileSize;
    name: string;
    info: busboy.FileInfo;
} | {
    kind: ExceededLimitKind.FieldNameTruncated;
    name: string;
    value: string;
    info: busboy.FieldInfo;
} | {
    kind: ExceededLimitKind.FieldValueTruncated;
    name: string;
    value: string;
    info: busboy.FieldInfo;
} | {
    kind: ExceededLimitKind.Parts;
} | {
    kind: ExceededLimitKind.Files;
} | {
    kind: ExceededLimitKind.Fields;
};
export interface FileUploadLimitsOptions {
    /**
     * Max field name size (in bytes). Default: 100.
     */
    fieldNameSize: number;
    /**
     * Max field value size (in bytes). Default: 1048576 (1MB).
     */
    fieldSize: number;
    /**
     * Max number of non-file fields. Default: Infinity.
     */
    fields: number;
    /**
     * For multipart forms, the max file size (in bytes). Default: Infinity.
     */
    fileSize: number;
    /**
     * For multipart forms, the max number of file fields. Default: Infinity.
     */
    files: number;
    /**
     * For multipart forms, the max number of parts (fields + files). Default: Infinity.
     */
    parts: number;
    /**
     * For multipart forms, the max number of header key-value pairs to parse. Default: 2000 (same as node's http module).
     */
    headerPairs: number;
}
export interface FileUploadOptions {
    /**
     * highWaterMark to use for the parser stream. Default: node's stream.Writable default.
     */
    highWaterMark?: number;
    /**
     * highWaterMark to use for individual file streams. Default: node's stream.Readable default.
     */
    fileHighWaterMark?: number;
    /**
     * Default character set to use when one isn't defined. Default: 'utf8'.
     */
    defaultCharset?: string;
    /**
     * For multipart forms, the default character set to use for values of part header parameters (e.g. filename) that are not extended parameters (that contain an explicit charset). Default: 'latin1'.
     */
    defaultParameterCharset?: string;
    /**
     * If paths in filenames from file parts in a 'multipart/form-data' request shall be preserved. Default: false.
     */
    preservePath?: boolean;
    /**
     *  Various limits on incoming data.
     */
    limits?: FileUploadLimitsOptions;
    /**
     * Ignore limits. Will truncate the data if it's over the configured limit. Default: false.
     */
    ignoreLimits?: boolean;
    /**
     * Called when a limit is exceeded while parsing body. Can be used to send a error response. Default: Send a json error response with status 422.
     */
    limitExceededHandler?: (request: CelosiaRequest, response: CelosiaResponse, info: ExceededLimitInfo, options: Required<FileUploadOptions>) => void;
    /**
     * Called when an error occured while parsing body. Can be used to send a error response. Default: Send a json error response with status 500.
     */
    errorHandler?: (request: CelosiaRequest, response: CelosiaResponse, info: FileUploadErrorInfo, options: Required<FileUploadOptions>) => void;
    parser?: QueryString.IParseOptions<QueryString.BooleanOptional>;
}
export type UploadedFile = z.infer<typeof ZodActualUploadedFileType>;