// @flow

// Script expects to find rnnoise webassembly binary in the same public path root, otherwise it won't load
// During the build phase this needs to be taken care of manually
import rnnoiseWasmInit from 'rnnoise-wasm';

import RnnoiseProcessor from './RnnoiseProcessor';

export { RNNOISE_SAMPLE_LENGTH } from './RnnoiseProcessor';
export type { RnnoiseProcessor };

let rnnoiseModule;

/**
 * Creates a new instance of RnnoiseProcessor.
 *
 * @returns {Promise<RnnoiseProcessor>}
 */
export function createRnnoiseProcessor() {
    if (!rnnoiseModule) {
        rnnoiseModule = rnnoiseWasmInit();
    }

    return rnnoiseModule.then(mod => new RnnoiseProcessor(mod));
}