initial support for conference and queues

lib/tasks/task.js

@@ -1,4 +1,5 @@
 const Emitter = require('events');
+const uuidv4 = require('uuid/v4');
 const debug = require('debug')('jambonz:feature-server');
 const assert = require('assert');
 const {TaskPreconditions} = require('../utils/constants');
@@ -98,6 +99,38 @@ class Task extends Emitter {
     }
   }
 
+  async transferCallToFeatureServer(cs, sipAddress, opts) {
+    const uuid = uuidv4();
+    const {addKey} = cs.srf.locals.dbHelpers;
+    const obj = Object.assign({}, cs.application);
+    delete obj.requestor;
+    delete obj.notifier;
+    obj.tasks =  cs.getRemainingTaskData();
+    if (opts && obj.tasks.length > 1) obj.tasks[0]._ = opts;
+
+    this.logger.debug({obj}, 'Task:_doRefer');
+
+    const success = await addKey(uuid, JSON.stringify(obj), 30);
+    if (!success) {
+      this.logger.info(`Task:_doRefer failed storing task data before REFER for ${this.queueName}`);
+      return;
+    }
+    try {
+      this.logger.info(`Task:_doRefer: referring call to ${sipAddress} for ${this.queueName}`);
+      this.callMoved = true;
+      const success = await cs.referCall(`sip:context-${uuid}@${sipAddress}`);
+      if (!success) {
+        this.callMoved = false;
+        this.logger.info('Task:_doRefer REFER failed');
+        return success;
+      }
+      this.logger.info('Task:_doRefer REFER succeeded');
+      return success;
+    } catch (err) {
+      this.logger.error(err, 'Task:_doRefer error');
+    }
+  }
+
   /**
    * validate that the JSON task description is valid
    * @param {string} name - verb name