Use token region

Author: codetheweb

index.js

@@ -86,7 +86,7 @@ class TuyaLinkWizard {
 
       debug('Token: ', token);
 
-      this.device.registerSmartLink({region: this.region,
+      this.device.registerSmartLink({region: token.region,
                                      token: token.token,
                                      secret: token.secret,
                                      ssid,

lib/link.js

@@ -35,7 +35,7 @@ class TuyaLink {
    * @param {String} options.wifiPassword
    * password of WiFi
    * @example
-   * device.registerSmartLink({region: 'us',
+   * device.registerSmartLink({region: 'AZ',
    *                           token: '00000000',
    *                           secret: '0101',
    *                           ssid: 'Example SSID',
@@ -46,7 +46,7 @@ class TuyaLink {
    */
   async registerSmartLink(options) {
   // Check arguments
-    if (options.region.length !== 2 || !['us', 'cn', 'eu'].includes(options.region)) {
+    if (options.region.length !== 2 || !['AZ', 'CN', 'EU'].includes(options.region)) {
       throw new Error('Invalid region');
     }
 
@@ -143,7 +143,7 @@ class TuyaLink {
    * lengths.
    * @param {Object} options options
    * @param {String} options.region
-   * two-letter region (us=Americas, cn=Asia, eu=Europe)
+   * two-letter region (AZ=Americas, CN=Asia, EU=Europe)
    * @param {String} options.token token
    * @param {String} options.secret secret
    * @param {String} options.ssid SSID