Add API Wrapper for lab usage statistics

lib/EduLab.js

@@ -33,6 +33,7 @@ class EduLab {
     this.router.post('/api/create-machine', (req, res) => this.APIcreateMachine(req, res));
     this.router.post('/api/wmstatus', (req, res) => this.APIwmstatus(req, res));
     this.router.delete('/api/lab/:labid' , (req, res) => this.APIlabDelete(req, res));
+    this.router.get('/api/lab/:labid/usage' , (req, res) => this.APIlabUsage(req, res));
   }
 
   getUserContext(req) {
@@ -148,6 +149,41 @@ class EduLab {
 
   }
 
+
+  filterData(data) {
+    var results = {};
+    data.forEach((cur, index) => {
+      console.log(cur);
+      if (!cur.instance_data.tags || !cur.instance_data.tags.feide_userid) return
+      let userid = cur.instance_data.tags.feide_userid
+      if (!results[userid]) {
+        results[userid] = []
+      }
+      results[userid].push(cur)
+    })
+    return results
+  }
+
+
+  APIlabUsage(req, res) {
+    var labid = req.params.labid;
+    console.log("About to fetch usage data for " + labid);
+    this.getAPI(req, '/classrooms/' + labid + '/resourceusage?daysback=1', {
+      method: "GET",
+      json: true
+    })
+      .then((response) => {
+        console.log("WE got response from lab resourceusage ", labid);
+        console.log(response);
+        console.log("---------");
+          res.json(this.filterData(response.UsageAggregation));
+      })
+      .catch((err) => {
+        console.error("Error debug page", err);
+        res.render('error', err);
+      });
+  }
+
   APIlabDelete(req, res) {
     var labid = req.params.labid;
     console.log("ABOUT TO DELETE LAB " + labid);