wikimedia/mediawiki-extensions-Wikibase

import { ReadingApi } from '@/definitions/data-access/Api';
import { ApiQueryResponseBody } from '@/definitions/data-access/ApiQuery';
import TempUserConfigRepository, {
    TempUserConfiguration,
} from '@/definitions/data-access/TempUserConfigRepository';
import TechnicalProblem from '@/data-access/error/TechnicalProblem';

interface ApiQueryTempUserConfigBody extends ApiQueryResponseBody {
    autocreatetempuser: TempUserConfiguration;
}

export default class ApiTempUserConfigRepository implements TempUserConfigRepository {
    private readonly api: ReadingApi;

    public constructor( api: ReadingApi ) {
        this.api = api;
    }

    public async getTempUserConfiguration(): Promise<TempUserConfiguration> {
        const response = await this.api.get( {
            action: 'query',
            meta: new Set( [ 'siteinfo' ] ),
            siprop: new Set( [ 'autocreatetempuser' ] ),
            errorformat: 'raw',
            formatversion: 2,
        } );

        if ( !this.isWellFormedResponse( response.query ) ) {
            throw new TechnicalProblem( 'Result not well formed.' );
        }

        return response.query.autocreatetempuser;
    }

    private isWellFormedResponse( response: ApiQueryResponseBody ): response is ApiQueryTempUserConfigBody {

        const responseToAssert = response as ApiQueryTempUserConfigBody;

        if ( typeof responseToAssert.autocreatetempuser !== 'object' ) {
            return false;
        }

        if ( typeof responseToAssert.autocreatetempuser.enabled !== 'boolean' ) {
            return false;
        }

        return true;
    }

}