Google Calendar: Insert Event

function main() {
    //// == 工程コンフィグの参照 / Config Retrieving ==
    const quser = configs.getObject("conf_User");
    if (quser === null) {
        throw `User not found.`;
    }
    let calendarId = configs.get("conf_DataIdB");
    if (calendarId === "" || calendarId === null) {
        calendarId = "primary";
    }
    const eventSummary = configs.get("conf_DataIdC");
    if (eventSummary === "" || eventSummary === null) {
        throw "Event Title is blank.";
    }
    const startDate = engine.findData(configs.getObject("conf_DataIdD"));
    if (startDate === null) {
        throw "Event Start Date is blank.";
    }
    const endDateDef = configs.getObject("conf_DataIdE");
    let endDate = null;
    if (endDateDef !== null) {
        endDate = engine.findData(endDateDef);
    }
    let eventLocation = configs.get("conf_DataIdF");
    if (eventLocation === null) {
        eventLocation = "";
    }
    let eventDescription = configs.get("conf_DataIdG");
    if (eventDescription === null) {
        eventDescription = "";
    }

    const eventIdDataDef = configs.getObject("conf_eventId");
    const eventUrlDataDef = configs.getObject("conf_eventUrl");
    const meetUrlDataDef = configs.getObject("conf_meetUrl");

    //// == 演算 / Calculating ==
    if (calendarId.search(/^[\w\-_.!*'@]+$/) === -1) {
        throw "Invalid Calendar ID.";
    }

    if (endDate === null) {
        endDate = startDate.addHours(1);
    }
    if (endDate.getTime() < startDate.getTime()) {
        throw "Event End Date comes before Event Start Date.";
    }

    //// == 予定を追加する / Insert Event ==
    insertEvent(
        quser,
        calendarId,
        eventSummary,
        eventLocation,
        eventDescription,
        startDate,
        endDate,
        eventIdDataDef,
        eventUrlDataDef,
        meetUrlDataDef
    );
}

/**
 * Google カレンダーにイベントを追加する
 * @param {QuserView} quser ユーザー
 * @param {String} calendarId カレンダーID
 * @param {String} eventSummary 予定タイトル
 * @param {String} eventLocation 場所情報
 * @param {String} eventDescription 説明情報
 * @param {AddableTimestamp} startDate 開始日時
 * @param {AddableTimestamp} endDate 終了日時
 * @param {ProcessDataDefinitionView} eventIdDataDef Event ID を保存する文字型データ項目
 * @param {ProcessDataDefinitionView} eventUrlDataDef Event URL を保存する文字型データ項目
 * @param {ProcessDataDefinitionView} meetUrlDataDef Meet URL を保存する文字型データ項目
 */
function insertEvent(
    quser,
    calendarId,
    eventSummary,
    eventLocation,
    eventDescription,
    startDate,
    endDate,
    eventIdDataDef,
    eventUrlDataDef,
    meetUrlDataDef
) {
    const uri = `https://www.googleapis.com/calendar/v3/calendars/${calendarId}/events`;

    const sdf = new java.text.SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");

    const myObj = {};
    myObj.summary = eventSummary;
    myObj.location = eventLocation;
    myObj.description = eventDescription;
    myObj.start = {};
    myObj.start.dateTime = sdf.format(startDate);
    myObj.start.timeZone = engine.getTimeZoneId();
    myObj.end = {};
    myObj.end.dateTime = sdf.format(endDate);
    myObj.end.timeZone = engine.getTimeZoneId();
    myObj.source = {};
    myObj.conferenceData = {};
    myObj.conferenceData.createRequest = {};
    myObj.conferenceData.createRequest.requestId = `q-${processInstance.getProcessInstanceId()}`;
    myObj.conferenceData.createRequest.conferenceSolutionKey = {};
    myObj.conferenceData.createRequest.conferenceSolutionKey.type =
        "hangoutsMeet";

    let request = httpClient.begin().googleOAuth2(quser, "Calendar");
    if (meetUrlDataDef !== null) {
        request = request.queryParam("conferenceDataVersion", "1");
    }
    const response = request
        .body(JSON.stringify(myObj), "application/json")
        .post(uri);

    const status = response.getStatusCode();
    if (status >= 300) {
        const accessLog = `---POST request---${status}\n${response.getResponseAsString()}`;
        engine.log(accessLog);
        throw `Failed to insert event. status:${status}`;
    }

    const responseStr = response.getResponseAsString();
    const eventJson = JSON.parse(responseStr);
    const eventId = eventJson.id;
    const eventUrl = eventJson.htmlLink;
    const meetUrl = eventJson.hangoutLink;
    if (eventIdDataDef !== null) {
        engine.setData(eventIdDataDef, eventId);
    }
    if (eventUrlDataDef !== null) {
        engine.setData(eventUrlDataDef, eventUrl);
    }
    if (meetUrlDataDef !== null) {
        engine.setData(meetUrlDataDef, meetUrl);
    }
}