export function getShareInfoText()

in react/features/invite/functions.js [542:620]
60 lines of code
13 McCabe index (conditional complexity)

export function getShareInfoText(
        state: Object, inviteUrl: string, useHtml: ?boolean): Promise<string> {
    let roomUrl = _decodeRoomURI(inviteUrl);
    const includeDialInfo = state['features/base/config'] !== undefined;

    if (useHtml) {
        roomUrl = `<a href="${roomUrl}">${roomUrl}</a>`;
    }

    let infoText = i18next.t('share.mainText', { roomUrl });

    if (includeDialInfo) {
        const { room } = parseURIString(inviteUrl);
        let numbersPromise;

        if (state['features/invite'].numbers
            && state['features/invite'].conferenceID) {
            numbersPromise = Promise.resolve(state['features/invite']);
        } else {
            // we are requesting numbers and conferenceId directly
            // not using updateDialInNumbers, because custom room
            // is specified and we do not want to store the data
            // in the state
            const { dialInConfCodeUrl, dialInNumbersUrl, hosts }
                = state['features/base/config'];
            const mucURL = hosts && hosts.muc;

            if (!dialInConfCodeUrl || !dialInNumbersUrl || !mucURL) {
                // URLs for fetching dial in numbers not defined
                return Promise.resolve(infoText);
            }

            numbersPromise = Promise.all([
                getDialInNumbers(dialInNumbersUrl, room, mucURL),
                getDialInConferenceID(dialInConfCodeUrl, room, mucURL)
            ]).then(([ numbers, {
                conference, id, message } ]) => {

                if (!conference || !id) {
                    return Promise.reject(message);
                }

                return {
                    numbers,
                    conferenceID: id
                };
            });
        }

        return numbersPromise.then(
            ({ conferenceID, numbers }) => {
                const phoneNumber = _getDefaultPhoneNumber(numbers) || '';

                return `${
                    i18next.t('info.dialInNumber')} ${
                    phoneNumber} ${
                    i18next.t('info.dialInConferenceID')} ${
                    conferenceID}#\n\n`;
            })
            .catch(error =>
                logger.error('Error fetching numbers or conferenceID', error))
            .then(defaultDialInNumber => {
                let dialInfoPageUrl = getDialInfoPageURL(state, room);

                if (useHtml) {
                    dialInfoPageUrl
                        = `<a href="${dialInfoPageUrl}">${dialInfoPageUrl}</a>`;
                }

                infoText += i18next.t('share.dialInfoText', {
                    defaultDialInNumber,
                    dialInfoPageUrl });

                return infoText;
            });
    }

    return Promise.resolve(infoText);
}