Generated files

API.md

@@ -162,5 +162,20 @@ Schedules a given function which will not be called as long as it
 * **Number** *delay* - delay in milliseconds
 * **Function** *fn* - function to be called
 
+## generateDeviceId([framework], prefix, framework, [lastId])
+
+Generates a new device id which is not yet in use by another device
+
+### Params:
+
+* *[framework]* - the pimatic framework object.
+* **String** *prefix* - a prefix string to be used as part of device id.
+* **Integer** *framework* - the pimatic framework object.
+* **String** *[lastId]* - the lastId returned by generateDeviceId
+
+### Return:
+
+* **String** the id generated or undefined if id could not be generated
+
 <!-- End src\index.coffee -->
 

lib/index.js

@@ -227,7 +227,7 @@ module.exports = function(env) {
             return array;
           }
           output = {};
-          for (key = i = 0, ref = array.length; 0 <= ref ? i < ref : i > ref; key = 0 <= ref ? ++i : --i) {
+          for (key = i = 0, ref = array.length; i < ref; key = i += 1) {
             output[array[key]] = array[key];
           }
           results = [];
@@ -271,6 +271,37 @@ module.exports = function(env) {
             return fn.call(device);
           }, delay);
           return Promise.resolve();
+        },
+
+        /*
+          Generates a new device id which is not yet in use by another device
+          @param {*} [framework] - the pimatic framework object.
+          @param {String} prefix - a prefix string to be used as part of device id.
+          @param {Integer} framework - the pimatic framework object.
+          @param {String} [lastId] - the lastId returned by generateDeviceId
+          @returns {String} the id generated or undefined if id could not be generated
+         */
+        generateDeviceId: function(framework, prefix, lastId) {
+          var i, m, matched, ref, result, start, x;
+          if (lastId == null) {
+            lastId = '';
+          }
+          start = 1;
+          if ((lastId != null) && lastId !== '') {
+            m = lastId.match(/.*-([0-9]+)$/);
+            if ((m != null) && m.length === 2) {
+              start = +m[1] + 1;
+            }
+          }
+          for (x = i = ref = start; i < 1000; x = i += 1) {
+            result = prefix + "-" + x;
+            matched = framework.deviceManager.devicesConfig.some(function(element, iterator) {
+              return element.id === result;
+            });
+            if (!matched) {
+              return result;
+            }
+          }
         }
       };
     }