text: /*
   * Code generated by Microsoft (R) AutoRest Code Generator.
   * Changes may cause incorrect behavior and will be lost if the code is
   * regenerated.
   */
  
  'use strict';
  
  const msRest = require('ms-rest');
  const WebResource = msRest.WebResource;
  
  /**
   * Invites a new or existing user to an app
   *
   * @param {string} appName The name of the application
   *
   * @param {string} ownerName The name of the owner
   *
   * @param {object} [options] Optional Parameters.
   *
   * @param {object} [options.userEmail] The email of the user to invite
   *
   * @param {string} options.userEmail.userEmail The user's email address'
   *
   * @param {object} [options.customHeaders] Headers that will be added to the
   * request
   *
   * @param {function} callback - The callback.
   *
   * @returns {function} callback(err, result, request, response)
   *
   *                      {Error}  err        - The Error object if an error occurred, null otherwise.
   *
   *                      {null} [result]   - The deserialized result object if an error did not occur.
   *
   *                      {object} [request]  - The HTTP Request object if an error did not occur.
   *
   *                      {stream} [response] - The HTTP Response stream if an error did not occur.
   */
  function _create(appName, ownerName, options, callback) {
     /* jshint validthis: true */
    let client = this.client;
    if(!callback && typeof options === 'function') {
      callback = options;
      options = null;
    }
    if (!callback) {
      throw new Error('callback cannot be null.');
    }
    let userEmail = (options && options.userEmail !== undefined) ? options.userEmail : undefined;
    // Validate
    try {
      if (appName === null || appName === undefined || typeof appName.valueOf() !== 'string') {
        throw new Error('appName cannot be null or undefined and it must be of type string.');
      }
      if (ownerName === null || ownerName === undefined || typeof ownerName.valueOf() !== 'string') {
        throw new Error('ownerName cannot be null or undefined and it must be of type string.');
      }
    } catch (error) {
      return callback(error);
    }
  
    // Construct URL
    let baseUrl = this.client.baseUri;
    let requestUrl = baseUrl + (baseUrl.endsWith('/') ? '' : '/') + 'v0.1/apps/{owner_name}/{app_name}/invitations';
    requestUrl = requestUrl.replace('{app_name}', encodeURIComponent(appName));
    requestUrl = requestUrl.replace('{owner_name}', encodeURIComponent(ownerName));
  
    // Create HTTP transport objects
    let httpRequest = new WebResource();
    httpRequest.method = 'POST';
    httpRequest.url = requestUrl;
    httpRequest.headers = {};
    // Set Headers
    httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8';
    if(options) {
      for(let headerName in options['customHeaders']) {
        if (options['customHeaders'].hasOwnProperty(headerName)) {
          httpRequest.headers[headerName] = options['customHeaders'][headerName];
        }
      }
    }
    // Serialize Request
    let requestContent = null;
    let requestModel = null;
    try {
      if (userEmail !== null && userEmail !== undefined) {
        let requestModelMapper = new client.models['UserEmailRequest']().mapper();
        requestModel = client.serialize(requestModelMapper, userEmail, 'userEmail');
        requestContent = JSON.stringify(requestModel);
      }
    } catch (error) {
      let serializationError = new Error(`Error "${error.message}" occurred in serializing the ` +
          `payload - ${JSON.stringify(userEmail, null, 2)}.`);
      return callback(serializationError);
    }
    httpRequest.body = requestContent;
    // Send Request
    return client.pipeline(httpRequest, (err, response, responseBody) => {
      if (err) {
        return callback(err);
      }
      let statusCode = response.statusCode;
      if (statusCode < 200 || statusCode >= 300) {
        let error = new Error(responseBody);
        error.statusCode = response.statusCode;
        error.request = msRest.stripRequest(httpRequest);
        error.response = msRest.stripResponse(response);
        if (responseBody === '') responseBody = null;
        let parsedErrorResponse;
        try {
          parsedErrorResponse = JSON.parse(responseBody);
          if (parsedErrorResponse) {
            let internalError = null;
            if (parsedErrorResponse.error) internalError = parsedErrorResponse.error;
            error.code = internalError ? internalError.code : parsedErrorResponse.code;
            error.message = internalError ? internalError.message : parsedErrorResponse.message;
          }
        } catch (defaultError) {
          error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` +
                           `- "${responseBody}" for the default response.`;
          return callback(error);
        }
        return callback(error);
      }
      // Create Result
      let result = null;
      if (responseBody === '') responseBody = null;
  
      return callback(null, result, httpRequest, response);
    });
  }
  
  /**
   * Gets the pending invitations for the app
   *
   * @param {string} appName The name of the application
   *
   * @param {string} ownerName The name of the owner
   *
   * @param {object} [options] Optional Parameters.
   *
   * @param {object} [options.customHeaders] Headers that will be added to the
   * request
   *
   * @param {function} callback - The callback.
   *
   * @returns {function} callback(err, result, request, response)
   *
   *                      {Error}  err        - The Error object if an error occurred, null otherwise.
   *
   *                      {object} [result]   - The deserialized result object if an error did not occur.
   *                      See {@link AppInvitationDetailResponse} for more
   *                      information.
   *
   *                      {object} [request]  - The HTTP Request object if an error did not occur.
   *
   *                      {stream} [response] - The HTTP Response stream if an error did not occur.
   */
  function _list(appName, ownerName, options, callback) {
     /* jshint validthis: true */
    let client = this.client;
    if(!callback && typeof options === 'function') {
      callback = options;
      options = null;
    }
    if (!callback) {
      throw new Error('callback cannot be null.');
    }
    // Validate
    try {
      if (appName === null || appName === undefined || typeof appName.valueOf() !== 'string') {
        throw new Error('appName cannot be null or undefined and it must be of type string.');
      }
      if (ownerName === null || ownerName === undefined || typeof ownerName.valueOf() !== 'string') {
        throw new Error('ownerName cannot be null or undefined and it must be of type string.');
      }
    } catch (error) {
      return callback(error);
    }
  
    // Construct URL
    let baseUrl = this.client.baseUri;
    let requestUrl = baseUrl + (baseUrl.endsWith('/') ? '' : '/') + 'v0.1/apps/{owner_name}/{app_name}/invitations';
    requestUrl = requestUrl.replace('{app_name}', encodeURIComponent(appName));
    requestUrl = requestUrl.replace('{owner_name}', encodeURIComponent(ownerName));
  
    // Create HTTP transport objects
    let httpRequest = new WebResource();
    httpRequest.method = 'GET';
    httpRequest.url = requestUrl;
    httpRequest.headers = {};
    // Set Headers
    httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8';
    if(options) {
      for(let headerName in options['customHeaders']) {
        if (options['customHeaders'].hasOwnProperty(headerName)) {
          httpRequest.headers[headerName] = options['customHeaders'][headerName];
        }
      }
    }
    httpRequest.body = null;
    // Send Request
    return client.pipeline(httpRequest, (err, response, responseBody) => {
      if (err) {
        return callback(err);
      }
      let statusCode = response.statusCode;
      if (statusCode !== 200) {
        let error = new Error(responseBody);
        error.statusCode = response.statusCode;
        error.request = msRest.stripRequest(httpRequest);
        error.response = msRest.stripResponse(response);
        if (responseBody === '') responseBody = null;
        let parsedErrorResponse;
        try {
          parsedErrorResponse = JSON.parse(responseBody);
          if (parsedErrorResponse) {
            let internalError = null;
            if (parsedErrorResponse.error) internalError = parsedErrorResponse.error;
            error.code = internalError ? internalError.code : parsedErrorResponse.code;
            error.message = internalError ? internalError.message : parsedErrorResponse.message;
          }
        } catch (defaultError) {
          error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` +
                           `- "${responseBody}" for the default response.`;
          return callback(error);
        }
        return callback(error);
      }
      // Create Result
      let result = null;
      if (responseBody === '') responseBody = null;
      // Deserialize Response
      if (statusCode === 200) {
        let parsedResponse = null;
        try {
          parsedResponse = JSON.parse(responseBody);
          result = JSON.parse(responseBody);
          if (parsedResponse !== null && parsedResponse !== undefined) {
            let resultMapper = new client.models['AppInvitationDetailResponse']().mapper();
            result = client.deserialize(resultMapper, parsedResponse, 'result');
          }
        } catch (error) {
          let deserializationError = new Error(`Error ${error} occurred in deserializing the responseBody - ${responseBody}`);
          deserializationError.request = msRest.stripRequest(httpRequest);
          deserializationError.response = msRest.stripResponse(response);
          return callback(deserializationError);
        }
      }
  
      return callback(null, result, httpRequest, response);
    });
  }
  
  /**
   * Invites a new or existing user to an app
   *
   * @param {string} appName The name of the application
   *
   * @param {string} ownerName The name of the owner
   *
   * @param {string} userEmail The email of the user to invite
   *
   * @param {object} [options] Optional Parameters.
   *
   * @param {object} [options.customHeaders] Headers that will be added to the
   * request
   *
   * @param {function} callback - The callback.
   *
   * @returns {function} callback(err, result, request, response)
   *
   *                      {Error}  err        - The Error object if an error occurred, null otherwise.
   *
   *                      {null} [result]   - The deserialized result object if an error did not occur.
   *
   *                      {object} [request]  - The HTTP Request object if an error did not occur.
   *
   *                      {stream} [response] - The HTTP Response stream if an error did not occur.
   */
  function _createByEmail(appName, ownerName, userEmail, options, callback) {
     /* jshint validthis: true */
    let client = this.client;
    if(!callback && typeof options === 'function') {
      callback = options;
      options = null;
    }
    if (!callback) {
      throw new Error('callback cannot be null.');
    }
    // Validate
    try {
      if (appName === null || appName === undefined || typeof appName.valueOf() !== 'string') {
        throw new Error('appName cannot be null or undefined and it must be of type string.');
      }
      if (ownerName === null || ownerName === undefined || typeof ownerName.valueOf() !== 'string') {
        throw new Error('ownerName cannot be null or undefined and it must be of type string.');
      }
      if (userEmail === null || userEmail === undefined || typeof userEmail.valueOf() !== 'string') {
        throw new Error('userEmail cannot be null or undefined and it must be of type string.');
      }
    } catch (error) {
      return callback(error);
    }
  
    // Construct URL
    let baseUrl = this.client.baseUri;
    let requestUrl = baseUrl + (baseUrl.endsWith('/') ? '' : '/') + 'v0.1/apps/{owner_name}/{app_name}/invitations/{user_email}';
    requestUrl = requestUrl.replace('{app_name}', encodeURIComponent(appName));
    requestUrl = requestUrl.replace('{owner_name}', encodeURIComponent(ownerName));
    requestUrl = requestUrl.replace('{user_email}', encodeURIComponent(userEmail));
  
    // Create HTTP transport objects
    let httpRequest = new WebResource();
    httpRequest.method = 'POST';
    httpRequest.url = requestUrl;
    httpRequest.headers = {};
    // Set Headers
    httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8';
    if(options) {
      for(let headerName in options['customHeaders']) {
        if (options['customHeaders'].hasOwnProperty(headerName)) {
          httpRequest.headers[headerName] = options['customHeaders'][headerName];
        }
      }
    }
    httpRequest.body = null;
    // Send Request
    return client.pipeline(httpRequest, (err, response, responseBody) => {
      if (err) {
        return callback(err);
      }
      let statusCode = response.statusCode;
      if (statusCode < 200 || statusCode >= 300) {
        let error = new Error(responseBody);
        error.statusCode = response.statusCode;
        error.request = msRest.stripRequest(httpRequest);
        error.response = msRest.stripResponse(response);
        if (responseBody === '') responseBody = null;
        let parsedErrorResponse;
        try {
          parsedErrorResponse = JSON.parse(responseBody);
          if (parsedErrorResponse) {
            let internalError = null;
            if (parsedErrorResponse.error) internalError = parsedErrorResponse.error;
            error.code = internalError ? internalError.code : parsedErrorResponse.code;
            error.message = internalError ? internalError.message : parsedErrorResponse.message;
          }
        } catch (defaultError) {
          error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` +
                           `- "${responseBody}" for the default response.`;
          return callback(error);
        }
        return callback(error);
      }
      // Create Result
      let result = null;
      if (responseBody === '') responseBody = null;
  
      return callback(null, result, httpRequest, response);
    });
  }
  
  /**
   * Update pending invitation permission
   *
   * @param {string} appName The name of the application
   *
   * @param {string} ownerName The name of the owner
   *
   * @param {string} userEmail The email of the user to invite
   *
   * @param {object} [options] Optional Parameters.
   *
   * @param {object} [options.userInvitationPermissionsData] The value to update
   * the user permission in the invite.
   *
   * @param {array} options.userInvitationPermissionsData.permissions The
   * permissions the user has for the app in the invitation
   *
   * @param {object} [options.customHeaders] Headers that will be added to the
   * request
   *
   * @param {function} callback - The callback.
   *
   * @returns {function} callback(err, result, request, response)
   *
   *                      {Error}  err        - The Error object if an error occurred, null otherwise.
   *
   *                      {null} [result]   - The deserialized result object if an error did not occur.
   *
   *                      {object} [request]  - The HTTP Request object if an error did not occur.
   *
   *                      {stream} [response] - The HTTP Response stream if an error did not occur.
   */
  function _updatePermissions(appName, ownerName, userEmail, options, callback) {
     /* jshint validthis: true */
    let client = this.client;
    if(!callback && typeof options === 'function') {
      callback = options;
      options = null;
    }
    if (!callback) {
      throw new Error('callback cannot be null.');
    }
    let userInvitationPermissionsData = (options && options.userInvitationPermissionsData !== undefined) ? options.userInvitationPermissionsData : undefined;
    // Validate
    try {
      if (appName === null || appName === undefined || typeof appName.valueOf() !== 'string') {
        throw new Error('appName cannot be null or undefined and it must be of type string.');
      }
      if (ownerName === null || ownerName === undefined || typeof ownerName.valueOf() !== 'string') {
        throw new Error('ownerName cannot be null or undefined and it must be of type string.');
      }
      if (userEmail === null || userEmail === undefined || typeof userEmail.valueOf() !== 'string') {
        throw new Error('userEmail cannot be null or undefined and it must be of type string.');
      }
    } catch (error) {
      return callback(error);
    }
  
    // Construct URL
    let baseUrl = this.client.baseUri;
    let requestUrl = baseUrl + (baseUrl.endsWith('/') ? '' : '/') + 'v0.1/apps/{owner_name}/{app_name}/invitations/{user_email}';
    requestUrl = requestUrl.replace('{app_name}', encodeURIComponent(appName));
    requestUrl = requestUrl.replace('{owner_name}', encodeURIComponent(ownerName));
    requestUrl = requestUrl.replace('{user_email}', encodeURIComponent(userEmail));
  
    // Create HTTP transport objects
    let httpRequest = new WebResource();
    httpRequest.method = 'PATCH';
    httpRequest.url = requestUrl;
    httpRequest.headers = {};
    // Set Headers
    httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8';
    if(options) {
      for(let headerName in options['customHeaders']) {
        if (options['customHeaders'].hasOwnProperty(headerName)) {
          httpRequest.headers[headerName] = options['customHeaders'][headerName];
        }
      }
    }
    // Serialize Request
    let requestContent = null;
    let requestModel = null;
    try {
      if (userInvitationPermissionsData !== null && userInvitationPermissionsData !== undefined) {
        let requestModelMapper = new client.models['UserInvitationPermissionsUpdateRequest']().mapper();
        requestModel = client.serialize(requestModelMapper, userInvitationPermissionsData, 'userInvitationPermissionsData');
        requestContent = JSON.stringify(requestModel);
      }
    } catch (error) {
      let serializationError = new Error(`Error "${error.message}" occurred in serializing the ` +
          `payload - ${JSON.stringify(userInvitationPermissionsData, null, 2)}.`);
      return callback(serializationError);
    }
    httpRequest.body = requestContent;
    // Send Request
    return client.pipeline(httpRequest, (err, response, responseBody) => {
      if (err) {
        return callback(err);
      }
      let statusCode = response.statusCode;
      if (statusCode < 200 || statusCode >= 300) {
        let error = new Error(responseBody);
        error.statusCode = response.statusCode;
        error.request = msRest.stripRequest(httpRequest);
        error.response = msRest.stripResponse(response);
        if (responseBody === '') responseBody = null;
        let parsedErrorResponse;
        try {
          parsedErrorResponse = JSON.parse(responseBody);
          if (parsedErrorResponse) {
            let internalError = null;
            if (parsedErrorResponse.error) internalError = parsedErrorResponse.error;
            error.code = internalError ? internalError.code : parsedErrorResponse.code;
            error.message = internalError ? internalError.message : parsedErrorResponse.message;
          }
        } catch (defaultError) {
          error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` +
                           `- "${responseBody}" for the default response.`;
          return callback(error);
        }
        return callback(error);
      }
      // Create Result
      let result = null;
      if (responseBody === '') responseBody = null;
  
      return callback(null, result, httpRequest, response);
    });
  }
  
  /**
   * Removes a user's invitation to an app
   *
   * @param {string} appName The name of the application
   *
   * @param {string} ownerName The name of the owner
   *
   * @param {string} userEmail The email of the user to invite
   *
   * @param {object} [options] Optional Parameters.
   *
   * @param {object} [options.customHeaders] Headers that will be added to the
   * request
   *
   * @param {function} callback - The callback.
   *
   * @returns {function} callback(err, result, request, response)
   *
   *                      {Error}  err        - The Error object if an error occurred, null otherwise.
   *
   *                      {null} [result]   - The deserialized result object if an error did not occur.
   *
   *                      {object} [request]  - The HTTP Request object if an error did not occur.
   *
   *                      {stream} [response] - The HTTP Response stream if an error did not occur.
   */
  function _deleteMethod(appName, ownerName, userEmail, options, callback) {
     /* jshint validthis: true */
    let client = this.client;
    if(!callback && typeof options === 'function') {
      callback = options;
      options = null;
    }
    if (!callback) {
      throw new Error('callback cannot be null.');
    }
    // Validate
    try {
      if (appName === null || appName === undefined || typeof appName.valueOf() !== 'string') {
        throw new Error('appName cannot be null or undefined and it must be of type string.');
      }
      if (ownerName === null || ownerName === undefined || typeof ownerName.valueOf() !== 'string') {
        throw new Error('ownerName cannot be null or undefined and it must be of type string.');
      }
      if (userEmail === null || userEmail === undefined || typeof userEmail.valueOf() !== 'string') {
        throw new Error('userEmail cannot be null or undefined and it must be of type string.');
      }
    } catch (error) {
      return callback(error);
    }
  
    // Construct URL
    let baseUrl = this.client.baseUri;
    let requestUrl = baseUrl + (baseUrl.endsWith('/') ? '' : '/') + 'v0.1/apps/{owner_name}/{app_name}/invitations/{user_email}';
    requestUrl = requestUrl.replace('{app_name}', encodeURIComponent(appName));
    requestUrl = requestUrl.replace('{owner_name}', encodeURIComponent(ownerName));
    requestUrl = requestUrl.replace('{user_email}', encodeURIComponent(userEmail));
  
    // Create HTTP transport objects
    let httpRequest = new WebResource();
    httpRequest.method = 'DELETE';
    httpRequest.url = requestUrl;
    httpRequest.headers = {};
    // Set Headers
    httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8';
    if(options) {
      for(let headerName in options['customHeaders']) {
        if (options['customHeaders'].hasOwnProperty(headerName)) {
          httpRequest.headers[headerName] = options['customHeaders'][headerName];
        }
      }
    }
    httpRequest.body = null;
    // Send Request
    return client.pipeline(httpRequest, (err, response, responseBody) => {
      if (err) {
        return callback(err);
      }
      let statusCode = response.statusCode;
      if (statusCode < 200 || statusCode >= 300) {
        let error = new Error(responseBody);
        error.statusCode = response.statusCode;
        error.request = msRest.stripRequest(httpRequest);
        error.response = msRest.stripResponse(response);
        if (responseBody === '') responseBody = null;
        let parsedErrorResponse;
        try {
          parsedErrorResponse = JSON.parse(responseBody);
          if (parsedErrorResponse) {
            let internalError = null;
            if (parsedErrorResponse.error) internalError = parsedErrorResponse.error;
            error.code = internalError ? internalError.code : parsedErrorResponse.code;
            error.message = internalError ? internalError.message : parsedErrorResponse.message;
          }
        } catch (defaultError) {
          error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` +
                           `- "${responseBody}" for the default response.`;
          return callback(error);
        }
        return callback(error);
      }
      // Create Result
      let result = null;
      if (responseBody === '') responseBody = null;
  
      return callback(null, result, httpRequest, response);
    });
  }
  
  /**
   * Accepts a pending invitation for the specified user
   *
   * @param {string} invitationToken The app invitation token that was sent to
   * the user
   *
   * @param {object} [options] Optional Parameters.
   *
   * @param {object} [options.customHeaders] Headers that will be added to the
   * request
   *
   * @param {function} callback - The callback.
   *
   * @returns {function} callback(err, result, request, response)
   *
   *                      {Error}  err        - The Error object if an error occurred, null otherwise.
   *
   *                      {null} [result]   - The deserialized result object if an error did not occur.
   *
   *                      {object} [request]  - The HTTP Request object if an error did not occur.
   *
   *                      {stream} [response] - The HTTP Response stream if an error did not occur.
   */
  function _accept(invitationToken, options, callback) {
     /* jshint validthis: true */
    let client = this.client;
    if(!callback && typeof options === 'function') {
      callback = options;
      options = null;
    }
    if (!callback) {
      throw new Error('callback cannot be null.');
    }
    // Validate
    try {
      if (invitationToken === null || invitationToken === undefined || typeof invitationToken.valueOf() !== 'string') {
        throw new Error('invitationToken cannot be null or undefined and it must be of type string.');
      }
    } catch (error) {
      return callback(error);
    }
  
    // Construct URL
    let baseUrl = this.client.baseUri;
    let requestUrl = baseUrl + (baseUrl.endsWith('/') ? '' : '/') + 'v0.1/user/invitations/apps/{invitation_token}/accept';
    requestUrl = requestUrl.replace('{invitation_token}', encodeURIComponent(invitationToken));
  
    // Create HTTP transport objects
    let httpRequest = new WebResource();
    httpRequest.method = 'POST';
    httpRequest.url = requestUrl;
    httpRequest.headers = {};
    // Set Headers
    httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8';
    if(options) {
      for(let headerName in options['customHeaders']) {
        if (options['customHeaders'].hasOwnProperty(headerName)) {
          httpRequest.headers[headerName] = options['customHeaders'][headerName];
        }
      }
    }
    httpRequest.body = null;
    // Send Request
    return client.pipeline(httpRequest, (err, response, responseBody) => {
      if (err) {
        return callback(err);
      }
      let statusCode = response.statusCode;
      if (statusCode < 200 || statusCode >= 300) {
        let error = new Error(responseBody);
        error.statusCode = response.statusCode;
        error.request = msRest.stripRequest(httpRequest);
        error.response = msRest.stripResponse(response);
        if (responseBody === '') responseBody = null;
        let parsedErrorResponse;
        try {
          parsedErrorResponse = JSON.parse(responseBody);
          if (parsedErrorResponse) {
            let internalError = null;
            if (parsedErrorResponse.error) internalError = parsedErrorResponse.error;
            error.code = internalError ? internalError.code : parsedErrorResponse.code;
            error.message = internalError ? internalError.message : parsedErrorResponse.message;
          }
        } catch (defaultError) {
          error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` +
                           `- "${responseBody}" for the default response.`;
          return callback(error);
        }
        return callback(error);
      }
      // Create Result
      let result = null;
      if (responseBody === '') responseBody = null;
  
      return callback(null, result, httpRequest, response);
    });
  }
  
  /**
   * Rejects a pending invitation for the specified user
   *
   * @param {string} invitationToken The app invitation token that was sent to
   * the user
   *
   * @param {object} [options] Optional Parameters.
   *
   * @param {object} [options.customHeaders] Headers that will be added to the
   * request
   *
   * @param {function} callback - The callback.
   *
   * @returns {function} callback(err, result, request, response)
   *
   *                      {Error}  err        - The Error object if an error occurred, null otherwise.
   *
   *                      {null} [result]   - The deserialized result object if an error did not occur.
   *
   *                      {object} [request]  - The HTTP Request object if an error did not occur.
   *
   *                      {stream} [response] - The HTTP Response stream if an error did not occur.
   */
  function _reject(invitationToken, options, callback) {
     /* jshint validthis: true */
    let client = this.client;
    if(!callback && typeof options === 'function') {
      callback = options;
      options = null;
    }
    if (!callback) {
      throw new Error('callback cannot be null.');
    }
    // Validate
    try {
      if (invitationToken === null || invitationToken === undefined || typeof invitationToken.valueOf() !== 'string') {
        throw new Error('invitationToken cannot be null or undefined and it must be of type string.');
      }
    } catch (error) {
      return callback(error);
    }
  
    // Construct URL
    let baseUrl = this.client.baseUri;
    let requestUrl = baseUrl + (baseUrl.endsWith('/') ? '' : '/') + 'v0.1/user/invitations/apps/{invitation_token}/reject';
    requestUrl = requestUrl.replace('{invitation_token}', encodeURIComponent(invitationToken));
  
    // Create HTTP transport objects
    let httpRequest = new WebResource();
    httpRequest.method = 'POST';
    httpRequest.url = requestUrl;
    httpRequest.headers = {};
    // Set Headers
    httpRequest.headers['Content-Type'] = 'application/json; charset=utf-8';
    if(options) {
      for(let headerName in options['customHeaders']) {
        if (options['customHeaders'].hasOwnProperty(headerName)) {
          httpRequest.headers[headerName] = options['customHeaders'][headerName];
        }
      }
    }
    httpRequest.body = null;
    // Send Request
    return client.pipeline(httpRequest, (err, response, responseBody) => {
      if (err) {
        return callback(err);
      }
      let statusCode = response.statusCode;
      if (statusCode < 200 || statusCode >= 300) {
        let error = new Error(responseBody);
        error.statusCode = response.statusCode;
        error.request = msRest.stripRequest(httpRequest);
        error.response = msRest.stripResponse(response);
        if (responseBody === '') responseBody = null;
        let parsedErrorResponse;
        try {
          parsedErrorResponse = JSON.parse(responseBody);
          if (parsedErrorResponse) {
            let internalError = null;
            if (parsedErrorResponse.error) internalError = parsedErrorResponse.error;
            error.code = internalError ? internalError.code : parsedErrorResponse.code;
            error.message = internalError ? internalError.message : parsedErrorResponse.message;
          }
        } catch (defaultError) {
          error.message = `Error "${defaultError.message}" occurred in deserializing the responseBody ` +
                           `- "${responseBody}" for the default response.`;
          return callback(error);
        }
        return callback(error);
      }
      // Create Result
      let result = null;
      if (responseBody === '') responseBody = null;
  
      return callback(null, result, httpRequest, response);
    });
  }
  
  /** Class representing a AppInvitations. */
  class AppInvitations {
    /**
     * Create a AppInvitations.
     * @param {AccountClient} client Reference to the service client.
     */
    constructor(client) {
      this.client = client;
      this._create = _create;
      this._list = _list;
      this._createByEmail = _createByEmail;
      this._updatePermissions = _updatePermissions;
      this._deleteMethod = _deleteMethod;
      this._accept = _accept;
      this._reject = _reject;
    }
  
    /**
     * Invites a new or existing user to an app
     *
     * @param {string} appName The name of the application
     *
     * @param {string} ownerName The name of the owner
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.userEmail] The email of the user to invite
     *
     * @param {string} options.userEmail.userEmail The user's email address'
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @returns {Promise} A promise is returned
     *
     * @resolve {HttpOperationResponse<null>} - The deserialized result object.
     *
     * @reject {Error} - The error object.
     */
    createWithHttpOperationResponse(appName, ownerName, options) {
      let client = this.client;
      let self = this;
      return new Promise((resolve, reject) => {
        self._create(appName, ownerName, options, (err, result, request, response) => {
          let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
          httpOperationResponse.body = result;
          if (err) { reject(err); }
          else { resolve(httpOperationResponse); }
          return;
        });
      });
    }
  
    /**
     * Invites a new or existing user to an app
     *
     * @param {string} appName The name of the application
     *
     * @param {string} ownerName The name of the owner
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.userEmail] The email of the user to invite
     *
     * @param {string} options.userEmail.userEmail The user's email address'
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @param {function} [optionalCallback] - The optional callback.
     *
     * @returns {function|Promise} If a callback was passed as the last parameter
     * then it returns the callback else returns a Promise.
     *
     * {Promise} A promise is returned
     *
     *                      @resolve {null} - The deserialized result object.
     *
     *                      @reject {Error} - The error object.
     *
     * {function} optionalCallback(err, result, request, response)
     *
     *                      {Error}  err        - The Error object if an error occurred, null otherwise.
     *
     *                      {null} [result]   - The deserialized result object if an error did not occur.
     *
     *                      {object} [request]  - The HTTP Request object if an error did not occur.
     *
     *                      {stream} [response] - The HTTP Response stream if an error did not occur.
     */
    create(appName, ownerName, options, optionalCallback) {
      let client = this.client;
      let self = this;
      if (!optionalCallback && typeof options === 'function') {
        optionalCallback = options;
        options = null;
      }
      if (!optionalCallback) {
        return new Promise((resolve, reject) => {
          self._create(appName, ownerName, options, (err, result, request, response) => {
            if (err) { reject(err); }
            else { resolve(result); }
            return;
          });
        });
      } else {
        return self._create(appName, ownerName, options, optionalCallback);
      }
    }
  
    /**
     * Gets the pending invitations for the app
     *
     * @param {string} appName The name of the application
     *
     * @param {string} ownerName The name of the owner
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @returns {Promise} A promise is returned
     *
     * @resolve {HttpOperationResponse<AppInvitationDetailResponse>} - The deserialized result object.
     *
     * @reject {Error} - The error object.
     */
    listWithHttpOperationResponse(appName, ownerName, options) {
      let client = this.client;
      let self = this;
      return new Promise((resolve, reject) => {
        self._list(appName, ownerName, options, (err, result, request, response) => {
          let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
          httpOperationResponse.body = result;
          if (err) { reject(err); }
          else { resolve(httpOperationResponse); }
          return;
        });
      });
    }
  
    /**
     * Gets the pending invitations for the app
     *
     * @param {string} appName The name of the application
     *
     * @param {string} ownerName The name of the owner
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @param {function} [optionalCallback] - The optional callback.
     *
     * @returns {function|Promise} If a callback was passed as the last parameter
     * then it returns the callback else returns a Promise.
     *
     * {Promise} A promise is returned
     *
     *                      @resolve {AppInvitationDetailResponse} - The deserialized result object.
     *
     *                      @reject {Error} - The error object.
     *
     * {function} optionalCallback(err, result, request, response)
     *
     *                      {Error}  err        - The Error object if an error occurred, null otherwise.
     *
     *                      {object} [result]   - The deserialized result object if an error did not occur.
     *                      See {@link AppInvitationDetailResponse} for more
     *                      information.
     *
     *                      {object} [request]  - The HTTP Request object if an error did not occur.
     *
     *                      {stream} [response] - The HTTP Response stream if an error did not occur.
     */
    list(appName, ownerName, options, optionalCallback) {
      let client = this.client;
      let self = this;
      if (!optionalCallback && typeof options === 'function') {
        optionalCallback = options;
        options = null;
      }
      if (!optionalCallback) {
        return new Promise((resolve, reject) => {
          self._list(appName, ownerName, options, (err, result, request, response) => {
            if (err) { reject(err); }
            else { resolve(result); }
            return;
          });
        });
      } else {
        return self._list(appName, ownerName, options, optionalCallback);
      }
    }
  
    /**
     * Invites a new or existing user to an app
     *
     * @param {string} appName The name of the application
     *
     * @param {string} ownerName The name of the owner
     *
     * @param {string} userEmail The email of the user to invite
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @returns {Promise} A promise is returned
     *
     * @resolve {HttpOperationResponse<null>} - The deserialized result object.
     *
     * @reject {Error} - The error object.
     */
    createByEmailWithHttpOperationResponse(appName, ownerName, userEmail, options) {
      let client = this.client;
      let self = this;
      return new Promise((resolve, reject) => {
        self._createByEmail(appName, ownerName, userEmail, options, (err, result, request, response) => {
          let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
          httpOperationResponse.body = result;
          if (err) { reject(err); }
          else { resolve(httpOperationResponse); }
          return;
        });
      });
    }
  
    /**
     * Invites a new or existing user to an app
     *
     * @param {string} appName The name of the application
     *
     * @param {string} ownerName The name of the owner
     *
     * @param {string} userEmail The email of the user to invite
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @param {function} [optionalCallback] - The optional callback.
     *
     * @returns {function|Promise} If a callback was passed as the last parameter
     * then it returns the callback else returns a Promise.
     *
     * {Promise} A promise is returned
     *
     *                      @resolve {null} - The deserialized result object.
     *
     *                      @reject {Error} - The error object.
     *
     * {function} optionalCallback(err, result, request, response)
     *
     *                      {Error}  err        - The Error object if an error occurred, null otherwise.
     *
     *                      {null} [result]   - The deserialized result object if an error did not occur.
     *
     *                      {object} [request]  - The HTTP Request object if an error did not occur.
     *
     *                      {stream} [response] - The HTTP Response stream if an error did not occur.
     */
    createByEmail(appName, ownerName, userEmail, options, optionalCallback) {
      let client = this.client;
      let self = this;
      if (!optionalCallback && typeof options === 'function') {
        optionalCallback = options;
        options = null;
      }
      if (!optionalCallback) {
        return new Promise((resolve, reject) => {
          self._createByEmail(appName, ownerName, userEmail, options, (err, result, request, response) => {
            if (err) { reject(err); }
            else { resolve(result); }
            return;
          });
        });
      } else {
        return self._createByEmail(appName, ownerName, userEmail, options, optionalCallback);
      }
    }
  
    /**
     * Update pending invitation permission
     *
     * @param {string} appName The name of the application
     *
     * @param {string} ownerName The name of the owner
     *
     * @param {string} userEmail The email of the user to invite
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.userInvitationPermissionsData] The value to update
     * the user permission in the invite.
     *
     * @param {array} options.userInvitationPermissionsData.permissions The
     * permissions the user has for the app in the invitation
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @returns {Promise} A promise is returned
     *
     * @resolve {HttpOperationResponse<null>} - The deserialized result object.
     *
     * @reject {Error} - The error object.
     */
    updatePermissionsWithHttpOperationResponse(appName, ownerName, userEmail, options) {
      let client = this.client;
      let self = this;
      return new Promise((resolve, reject) => {
        self._updatePermissions(appName, ownerName, userEmail, options, (err, result, request, response) => {
          let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
          httpOperationResponse.body = result;
          if (err) { reject(err); }
          else { resolve(httpOperationResponse); }
          return;
        });
      });
    }
  
    /**
     * Update pending invitation permission
     *
     * @param {string} appName The name of the application
     *
     * @param {string} ownerName The name of the owner
     *
     * @param {string} userEmail The email of the user to invite
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.userInvitationPermissionsData] The value to update
     * the user permission in the invite.
     *
     * @param {array} options.userInvitationPermissionsData.permissions The
     * permissions the user has for the app in the invitation
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @param {function} [optionalCallback] - The optional callback.
     *
     * @returns {function|Promise} If a callback was passed as the last parameter
     * then it returns the callback else returns a Promise.
     *
     * {Promise} A promise is returned
     *
     *                      @resolve {null} - The deserialized result object.
     *
     *                      @reject {Error} - The error object.
     *
     * {function} optionalCallback(err, result, request, response)
     *
     *                      {Error}  err        - The Error object if an error occurred, null otherwise.
     *
     *                      {null} [result]   - The deserialized result object if an error did not occur.
     *
     *                      {object} [request]  - The HTTP Request object if an error did not occur.
     *
     *                      {stream} [response] - The HTTP Response stream if an error did not occur.
     */
    updatePermissions(appName, ownerName, userEmail, options, optionalCallback) {
      let client = this.client;
      let self = this;
      if (!optionalCallback && typeof options === 'function') {
        optionalCallback = options;
        options = null;
      }
      if (!optionalCallback) {
        return new Promise((resolve, reject) => {
          self._updatePermissions(appName, ownerName, userEmail, options, (err, result, request, response) => {
            if (err) { reject(err); }
            else { resolve(result); }
            return;
          });
        });
      } else {
        return self._updatePermissions(appName, ownerName, userEmail, options, optionalCallback);
      }
    }
  
    /**
     * Removes a user's invitation to an app
     *
     * @param {string} appName The name of the application
     *
     * @param {string} ownerName The name of the owner
     *
     * @param {string} userEmail The email of the user to invite
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @returns {Promise} A promise is returned
     *
     * @resolve {HttpOperationResponse<null>} - The deserialized result object.
     *
     * @reject {Error} - The error object.
     */
    deleteMethodWithHttpOperationResponse(appName, ownerName, userEmail, options) {
      let client = this.client;
      let self = this;
      return new Promise((resolve, reject) => {
        self._deleteMethod(appName, ownerName, userEmail, options, (err, result, request, response) => {
          let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
          httpOperationResponse.body = result;
          if (err) { reject(err); }
          else { resolve(httpOperationResponse); }
          return;
        });
      });
    }
  
    /**
     * Removes a user's invitation to an app
     *
     * @param {string} appName The name of the application
     *
     * @param {string} ownerName The name of the owner
     *
     * @param {string} userEmail The email of the user to invite
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @param {function} [optionalCallback] - The optional callback.
     *
     * @returns {function|Promise} If a callback was passed as the last parameter
     * then it returns the callback else returns a Promise.
     *
     * {Promise} A promise is returned
     *
     *                      @resolve {null} - The deserialized result object.
     *
     *                      @reject {Error} - The error object.
     *
     * {function} optionalCallback(err, result, request, response)
     *
     *                      {Error}  err        - The Error object if an error occurred, null otherwise.
     *
     *                      {null} [result]   - The deserialized result object if an error did not occur.
     *
     *                      {object} [request]  - The HTTP Request object if an error did not occur.
     *
     *                      {stream} [response] - The HTTP Response stream if an error did not occur.
     */
    deleteMethod(appName, ownerName, userEmail, options, optionalCallback) {
      let client = this.client;
      let self = this;
      if (!optionalCallback && typeof options === 'function') {
        optionalCallback = options;
        options = null;
      }
      if (!optionalCallback) {
        return new Promise((resolve, reject) => {
          self._deleteMethod(appName, ownerName, userEmail, options, (err, result, request, response) => {
            if (err) { reject(err); }
            else { resolve(result); }
            return;
          });
        });
      } else {
        return self._deleteMethod(appName, ownerName, userEmail, options, optionalCallback);
      }
    }
  
    /**
     * Accepts a pending invitation for the specified user
     *
     * @param {string} invitationToken The app invitation token that was sent to
     * the user
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @returns {Promise} A promise is returned
     *
     * @resolve {HttpOperationResponse<null>} - The deserialized result object.
     *
     * @reject {Error} - The error object.
     */
    acceptWithHttpOperationResponse(invitationToken, options) {
      let client = this.client;
      let self = this;
      return new Promise((resolve, reject) => {
        self._accept(invitationToken, options, (err, result, request, response) => {
          let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
          httpOperationResponse.body = result;
          if (err) { reject(err); }
          else { resolve(httpOperationResponse); }
          return;
        });
      });
    }
  
    /**
     * Accepts a pending invitation for the specified user
     *
     * @param {string} invitationToken The app invitation token that was sent to
     * the user
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @param {function} [optionalCallback] - The optional callback.
     *
     * @returns {function|Promise} If a callback was passed as the last parameter
     * then it returns the callback else returns a Promise.
     *
     * {Promise} A promise is returned
     *
     *                      @resolve {null} - The deserialized result object.
     *
     *                      @reject {Error} - The error object.
     *
     * {function} optionalCallback(err, result, request, response)
     *
     *                      {Error}  err        - The Error object if an error occurred, null otherwise.
     *
     *                      {null} [result]   - The deserialized result object if an error did not occur.
     *
     *                      {object} [request]  - The HTTP Request object if an error did not occur.
     *
     *                      {stream} [response] - The HTTP Response stream if an error did not occur.
     */
    accept(invitationToken, options, optionalCallback) {
      let client = this.client;
      let self = this;
      if (!optionalCallback && typeof options === 'function') {
        optionalCallback = options;
        options = null;
      }
      if (!optionalCallback) {
        return new Promise((resolve, reject) => {
          self._accept(invitationToken, options, (err, result, request, response) => {
            if (err) { reject(err); }
            else { resolve(result); }
            return;
          });
        });
      } else {
        return self._accept(invitationToken, options, optionalCallback);
      }
    }
  
    /**
     * Rejects a pending invitation for the specified user
     *
     * @param {string} invitationToken The app invitation token that was sent to
     * the user
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @returns {Promise} A promise is returned
     *
     * @resolve {HttpOperationResponse<null>} - The deserialized result object.
     *
     * @reject {Error} - The error object.
     */
    rejectWithHttpOperationResponse(invitationToken, options) {
      let client = this.client;
      let self = this;
      return new Promise((resolve, reject) => {
        self._reject(invitationToken, options, (err, result, request, response) => {
          let httpOperationResponse = new msRest.HttpOperationResponse(request, response);
          httpOperationResponse.body = result;
          if (err) { reject(err); }
          else { resolve(httpOperationResponse); }
          return;
        });
      });
    }
  
    /**
     * Rejects a pending invitation for the specified user
     *
     * @param {string} invitationToken The app invitation token that was sent to
     * the user
     *
     * @param {object} [options] Optional Parameters.
     *
     * @param {object} [options.customHeaders] Headers that will be added to the
     * request
     *
     * @param {function} [optionalCallback] - The optional callback.
     *
     * @returns {function|Promise} If a callback was passed as the last parameter
     * then it returns the callback else returns a Promise.
     *
     * {Promise} A promise is returned
     *
     *                      @resolve {null} - The deserialized result object.
     *
     *                      @reject {Error} - The error object.
     *
     * {function} optionalCallback(err, result, request, response)
     *
     *                      {Error}  err        - The Error object if an error occurred, null otherwise.
     *
     *                      {null} [result]   - The deserialized result object if an error did not occur.
     *
     *                      {object} [request]  - The HTTP Request object if an error did not occur.
     *
     *                      {stream} [response] - The HTTP Response stream if an error did not occur.
     */
    reject(invitationToken, options, optionalCallback) {
      let client = this.client;
      let self = this;
      if (!optionalCallback && typeof options === 'function') {
        optionalCallback = options;
        options = null;
      }
      if (!optionalCallback) {
        return new Promise((resolve, reject) => {
          self._reject(invitationToken, options, (err, result, request, response) => {
            if (err) { reject(err); }
            else { resolve(result); }
            return;
          });
        });
      } else {
        return self._reject(invitationToken, options, optionalCallback);
      }
    }
  
  }
  
  module.exports = AppInvitations;
  