/**
 * main
 */
async function main()
{
    if (process.env.NODE_ENV === 'development') {
        process.env.NODE_TLS_REJECT_UNAUTHORIZED = '0';
    }

//  slog.setConfig( 'ws://localhost:8080', 'webServiceTemplate.log', 'ALL', 'slog', 'gols');
    slog.setConfig('wss://localhost:8443', 'webServiceTemplate.log', 'ALL', 'slog', 'gols');

    const logger = log4js.getLogger();
    logger.level = 'debug';

    slog.bind(
        logger.debug.bind(logger),
        logger.info .bind(logger),
        logger.warn .bind(logger),
        logger.error.bind(logger));

    const log = slog.stepIn('app.ts', 'main');
    const app = express();
    const init = new Initializer();

    await init.init(app);
    init.twitter();
    init.facebook();
    init.google();
    init.github();
    init.session();
    init.passport();
    init.route();

    listen(app);
    console.log('ready.');
    log.stepOut();
}

    return new Promise(async (resolve : (data : Response.GetUser) => void, reject) =>
    {
        const log = slog.stepIn('UserApi', 'getUser');
        try
        {
            const data  : Response.GetUser = {status:Response.Status.OK, user:null};
            let account : Account = null;
            const {id} = param;

            if (id)
            {
                if (isNaN(Number(id))) {
                    account = await AccountAgent.findByUserName(id as string);
                } else {
                    account = await AccountAgent.find(Number(id));
                }
            }

            if (account) {
                data.user = Converter.accountToUserResponse(account);
            }

            log.stepOut();
            resolve(data);
        }
        catch (err) {log.stepOut(); reject(err);}
    });

export function isConfirmSignupEmailValid(param : Request.ConfirmSignupEmail, account : Account, locale : string) : ValidationResult
{
    const log = slog.stepIn('SignupApi', 'isConfirmSignupEmailValid');
    const response : Response.ConfirmSignupEmail = {status:Response.Status.OK, message:{}};

    do
    {
        if (account === null)
        {
            // サインアップの確認画面でサインアップを完了させた後、再度サインアップを完了させようとした場合にここに到達する想定。
            // サインアップIDで該当するアカウントがないということが必ずしもサインアップ済みを意味するわけではないが、
            // 第三者が直接このAPIをコールするなど、想定以外のケースでなければありえないので、登録済みというメッセージでOK。
            response.status = Response.Status.FAILED;
            response.message.general = R.text(R.ALREADY_SIGNUP, locale);
            break;
        }

        const hashPassword = Utils.getHashPassword(account.email, param.password, Config.PASSWORD_SALT);

        if (account.password !== hashPassword)
        {
            response.status = Response.Status.FAILED;
            response.message.password = R.text(R.INVALID_PASSWORD, locale);
        }
    }
    while (false);

    if (response.status !== Response.Status.OK) {
        log.w(JSON.stringify(response, null, 2));
    }

    log.stepOut();
    return {response};
}

    /**
     * 遷移中かどうか
     */
    isDuringTransition() : boolean
    {
        const log = slog.stepIn('PageTransition', 'isDuringTransition');
        log.d(this.currentApp.store.page.displayStatus.toString());

        let result = false;
        do
        {
            if (this.nextApp !== null || this.currentApp.store.page.displayStatus !== 'displayed')
            {
                result = true;
                break;
            }

            if (this.currentApp.pageTransition)
            {
                result = this.currentApp.pageTransition.isDuringTransition();
                break;
            }
        }
        while (false);

        log.stepOut();
        return result;
    }

    /**
     * 初期化
     */
    static async init(): Promise<void>
    {
        const log = slog.stepIn('MySQL', 'init');
        try
        {
            if (Config.hasMySQL())
            {
                const config : mysql.PoolConfig =
                {
                    host:     Config.DB_HOST,
                    user:     Config.DB_USER,
                    password: Config.DB_PASSWORD,
                    database: Config.DB_NAME,
                    charset:  'utf8mb4',
                    timezone: 'utc'
                };
                Database.pool = mysql.createPool(config);

                const conn = await Database.getConnection();
                conn.release();
            }

            log.stepOut();
        }
        catch (err)
        {
            console.error('MySQLの初期化に失敗しました。');
            console.error(err.message);
            log.e(err.message);
            log.stepOut();

            // すぐに終了するとログが出力されないので数秒待ってから終了する
            setTimeout(() => process.exit(-1), 3000);
        }
    }

 deleteOne(filter : object)
 {
     const log = slog.stepIn('Collection', 'deleteOne');
     log.d(`${this.name}:${JSON.stringify(filter, null, 2)}`);
     log.stepOut();
     return this.collection.deleteOne(filter);
 }

 update(filter : object, obj : object)
 {
     const log = slog.stepIn('Collection', 'update');
     log.d(`${this.name}:${JSON.stringify(filter, null, 2)}\n${JSON.stringify(obj, null, 2)}`);
     log.stepOut();
     return this.collection.update(filter, obj);
 }

export async function onUnlinkProvider(req : express.Request, res : express.Response)
{
    const log = slog.stepIn('SettingsApi', 'onUnlinkProvider');
    try
    {
        do
        {
            const locale = req.ext.locale;
            const param     : Request.UnlinkProvider = req.body;
            const condition : Request.UnlinkProvider =
            {
                provider: ['string', null, true] as any
            };

            if (Utils.existsParameters(param, condition) === false)
            {
                res.ext.badRequest(locale);
                break;
            }

            // プロバイダ名チェック
            const {provider} = param;
            log.d(`${provider}`);

            if (provider !== 'twitter'
            &&  provider !== 'facebook'
            &&  provider !== 'google'
            &&  provider !== 'github')
            {
                res.ext.badRequest(locale);
                break;
            }

            // アカウント更新
            const session : Session = req.ext.session;
            const account = await AccountAgent.find(session.account_id);

            if (AccountAgent.canUnlink(account, provider))
            {
                account[provider] = null;
                await AccountAgent.update(account);

                const response : Response.UnlinkProvider = {status:Response.Status.OK, message:{}};
                res.json(response);
            }
            else
            {
                const response : Response.UnlinkProvider =
                {
                    status: Response.Status.FAILED,
                    message: {general:R.text(R.CANNOT_UNLINK, locale)}
                };
                res.json(response);
            }
        }
        while (false);
        log.stepOut();
    }
    catch (err) {Utils.internalServerError(err, res, log);}
}

/**
 * Authyからユーザー削除するべきかどうか
 */
function shouldAuthyUserDelete(
    account                  : Account,
    prevInternationalPhoneNo : string,
    newInternationalPhoneNo  : string) : boolean
{
    const log = slog.stepIn('onSetAccount.ts', 'shouldAuthyUserDelete');
    let result = false;

    do
    {
        if (account.authy_id === null)
        {
            log.d('Authy IDがないので削除の必要はありません。');
            break;
        }

        if (prevInternationalPhoneNo === newInternationalPhoneNo)
        {
            log.d('電話番号に変更がないので削除の必要はありません。');
            break;
        }

        log.d('削除が必要です。');
        result = true;
    }
    while (false);

    log.stepOut();
    return result;
}

    test.serial('パスワード変更の入力値検証 - メールアドレス以外に認証手段がある時はパスワードなしに変更できること', async (t) =>
    {
        const log = slog.stepIn('test', t['_test'].title);
        let account : Account =
        {
            email:    '[email protected]',
            password: '12345678',
            twitter:  'twitter'
        };
        account.password = Utils.getHashPassword(account.email, account.password, Config.PASSWORD_SALT);
        account = await AccountAgent.add(account);

        const param : Request.ChangePassword =
        {
            oldPassword: '12345678',
            newPassword: null,
            confirm:     null,
        };
        const result = await isChangePasswordValid(param, account.id, locale);
        const {status} = result.response;

        t.is(status, Response.Status.OK);
        await AccountAgent.remove(account.id);
        log.stepOut();
    });