import { ComputedRef, Ref } from 'vue';
import { QRCodeRenderResponse, QRCodeBaseOptions } from './types';
export interface UseQRCodeOptions extends Partial<QRCodeBaseOptions> {
    /**
     * Text to be encoded in the QR code (required)
     */
    text: string;
    /**
     * GIF background URL to be loaded and used
     */
    gifBackgroundURL?: string;
}
export type QRCodeGenerationStatus = 'idle' | 'loading' | 'success' | 'error' | 'cancelled';
export type QRCodeGenerationConcurrency = 'reject' | 'latest';
export interface UseQRCodeConfig {
    defaultOptions?: Partial<UseQRCodeOptions>;
    concurrency?: QRCodeGenerationConcurrency;
}
export interface UseQRCodeConfigWithDefaults extends UseQRCodeConfig {
    defaultOptions: UseQRCodeOptions;
}
export declare class QRCodeGenerationCancelledError extends Error {
    constructor(message?: string);
}
export interface UseQRCodeReturnBase {
    qrcodeURL: Ref<QRCodeRenderResponse>;
    isLoading: Ref<boolean>;
    status: Ref<QRCodeGenerationStatus>;
    error: Ref<Error | null>;
    canDownload: ComputedRef<boolean>;
    download: (fileName?: string, sourceOverride?: QRCodeRenderResponse) => Promise<void>;
    cancel: () => void;
    reset: () => void;
    clear: () => void;
    dispose: () => void;
}
export interface UseQRCodeReturn extends UseQRCodeReturnBase {
    generate: (options: UseQRCodeOptions) => Promise<QRCodeRenderResponse>;
}
export interface UseQRCodeReturnWithDefaults extends UseQRCodeReturnBase {
    generate: (options?: Partial<UseQRCodeOptions>) => Promise<QRCodeRenderResponse>;
}
/**
 * Composable for generating QR codes.
 *
 * The default `reject` concurrency mode preserves the original API behavior.
 * Use `latest` when only the newest overlapping request should own the result.
 */
export declare function useQRCode(): UseQRCodeReturn;
export declare function useQRCode(config: UseQRCodeConfigWithDefaults): UseQRCodeReturnWithDefaults;
export declare function useQRCode(config: UseQRCodeConfig): UseQRCodeReturn;
export type UseQRCodeReturnType = UseQRCodeReturn;