import * as i0 from '@angular/core';
import { InjectionToken, OnInit, OnDestroy, DoCheck, PipeTransform } from '@angular/core';
import { NgForm, FormGroupDirective, NgControl, ControlValueAccessor, ValidatorFn } from '@angular/forms';
import { MatFormFieldControl } from '@angular/material/form-field';
import { ErrorStateMatcher } from '@angular/material/core';
import { Subject } from 'rxjs';

/**
 * Optional token to provide custom configuration to the module
 */
declare const NGX_MAT_FILE_INPUT_CONFIG: InjectionToken<FileInputConfig>;
/**
 * Provide additional configuration to dynamically customize the module injection
 */
interface FileInputConfig {
    /**
     * Unit used with the ByteFormatPipe, default value is *Byte*.
     * The first letter is used for the short notation.
     */
    sizeUnit: string;
}

/**
 * The files to be uploaded
 */
declare class FileInput {
    private _files;
    private delimiter;
    private _fileNames;
    constructor(_files: File[] | null, delimiter?: string);
    get files(): File[];
    get fileNames(): string;
    /**
     * Generates a clean, single-line string summary of the selected files.
     * If multiple files are added, it avoids vertical layout breaking by
     * showing the first file name and a counter for the remaining ones.
     */
    private generateFileNamesSummary;
}

/** Base class for error state management */
declare class FileInputBase {
    _defaultErrorStateMatcher: ErrorStateMatcher;
    _parentForm: NgForm | null;
    _parentFormGroup: FormGroupDirective | null;
    ngControl: NgControl;
    stateChanges: Subject<void>;
    private _errorState;
    constructor(_defaultErrorStateMatcher: ErrorStateMatcher, _parentForm: NgForm | null, _parentFormGroup: FormGroupDirective | null, ngControl: NgControl, stateChanges: Subject<void>);
    /** Determines whether the control is in an error state */
    get errorState(): boolean;
    /** Triggers error state update */
    updateErrorState(): void;
}

declare class FileInputComponent extends FileInputBase implements MatFormFieldControl<FileInput>, ControlValueAccessor, OnInit, OnDestroy, DoCheck {
    static nextId: number;
    focused: boolean;
    controlType: string;
    autofilled: boolean;
    private _placeholder;
    private _required;
    private _multiple;
    private _checkDuplicates;
    private _previewUrls;
    private _objectURLs;
    private _internalValue;
    valuePlaceholder: string;
    accept: string | null;
    errorStateMatcher: ErrorStateMatcher;
    defaultIconBase64: string;
    empty: boolean;
    private fm;
    private _elementRef;
    private _renderer;
    get errorState(): boolean;
    id: string;
    describedBy: string;
    setDescribedByIds(ids: string[]): void;
    get value(): FileInput | null;
    set value(fileInput: FileInput | null);
    get multiple(): boolean;
    set multiple(value: boolean | string);
    get checkDuplicates(): boolean;
    set checkDuplicates(value: boolean | string);
    get placeholder(): string;
    set placeholder(plh: string);
    get required(): boolean;
    set required(req: boolean | string);
    get shouldLabelFloat(): boolean;
    get isDisabled(): boolean;
    get disabled(): boolean;
    set disabled(dis: boolean | string);
    get previewUrls(): string[];
    private _onChange;
    private _onTouched;
    get fileNames(): string;
    constructor();
    onContainerClick(event: MouseEvent): void;
    writeValue(obj: FileInput | null): void;
    registerOnChange(fn: (_: any) => void): void;
    registerOnTouched(fn: any): void;
    clear(event?: Event): void;
    change(event: Event): void;
    private updatePreviewUrls;
    removeFile(index: number): void;
    blur(): void;
    setDisabledState(isDisabled: boolean): void;
    open(): void;
    ngOnInit(): void;
    ngOnDestroy(): void;
    ngDoCheck(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<FileInputComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<FileInputComponent, "ngx-mat-file-input", never, { "autofilled": { "alias": "autofilled"; "required": false; }; "valuePlaceholder": { "alias": "valuePlaceholder"; "required": false; }; "accept": { "alias": "accept"; "required": false; }; "errorStateMatcher": { "alias": "errorStateMatcher"; "required": false; }; "defaultIconBase64": { "alias": "defaultIconBase64"; "required": false; }; "value": { "alias": "value"; "required": false; }; "multiple": { "alias": "multiple"; "required": false; }; "checkDuplicates": { "alias": "checkDuplicates"; "required": false; }; "placeholder": { "alias": "placeholder"; "required": false; }; "required": { "alias": "required"; "required": false; }; "disabled": { "alias": "disabled"; "required": false; }; }, {}, never, never, true, never>;
}

declare class ByteFormatPipe implements PipeTransform {
    private config;
    private unit;
    transform(value: any, args?: any): any;
    private formatBytes;
    static ɵfac: i0.ɵɵFactoryDeclaration<ByteFormatPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<ByteFormatPipe, "byteFormat", true>;
}

declare class FileValidator {
    /**
     * Function to control content of files
     *
     * @param bytes max number of bytes allowed
     *
     * @returns Validator function
     */
    static maxContentSize(bytes: number): ValidatorFn;
    /**
     * Validator function to validate accepted file formats
     *
     * @param acceptedMimeTypes Array of accepted MIME types (e.g., ['image/jpeg', 'application/pdf'])
     * @returns Validator function
     */
    static acceptedMimeTypes(acceptedMimeTypes: string[]): ValidatorFn;
    /**
     * Validator function to validate the min number of uploaded files
     *
     * @param minCount Number of minimum files to upload
     * @returns Validator function
     */
    static minFileCount(minCount: number): ValidatorFn;
    /**
     * Validator function to validate the max number of uploaded files
     *
     * @param maxCount Number of maximum files to upload
     * @returns Validator function
     */
    static maxFileCount(maxCount: number): ValidatorFn;
}

export { ByteFormatPipe, FileInput, FileInputComponent, FileValidator, NGX_MAT_FILE_INPUT_CONFIG };
export type { FileInputConfig };