const backendUri = `${window.location.protocol}//${window.location.hostname}:${window.location.port}`;
const getChallengeEndpoint = (provider) => `${backendUri}/external-auth/challenge?provider=${provider}`;
let _currentOauthResultsHandler;
export function getOAuthCode(provider) {
    function createOAuthMessageHandler(resolve, reject) {
        const handler = (event) => {
            if (event.data && event.data.type === 'oauth-result') {
                const data = event.data;
                if (data.code) {
                    resolve({
                        provider: data.provider,
                        code: data.code,
                    });
                }
                else {
                    reject({
                        provider: data.provider,
                        error: data.error,
                        errorDescription: data.errorDescription,
                    });
                }
                window.removeEventListener('message', handler, false);
            }
        };
        return handler;
    }
    // @ts-ignore
    return new Promise((resolve, reject) => {
        if (_currentOauthResultsHandler) {
            window.removeEventListener('message', _currentOauthResultsHandler, false);
        }
        _currentOauthResultsHandler = createOAuthMessageHandler(resolve, reject);
        window.addEventListener('message', _currentOauthResultsHandler, false);
        window.open(getChallengeEndpoint(provider), undefined, 'toolbar=no,menubar=no,directories=no,status=no,width=800,height=600');
    });
}