Add functions to parse questionnaires for assessments

src/assessment/assessment.lisp

@@ -16,7 +16,8 @@
                 #:calculate-statistics
                 #:average)
   (:export #:assessment-results-html
-           #:parse-assessments))
+           #:parse-assessments
+           #:parse-questionnaires))
 
 (in-package :ml-qmetrics/assessment)
 
@@ -112,11 +113,14 @@ ENTRY: Entry from a response."
           (append (getf acc cat-name) value))
     acc))
 
-(defun create-assessment (type responses)
-  (ecase type
-    (:visawi (make-instance 'visawi-assessment :responses responses))
-    (:sus (make-instance 'sus-assessment :responses responses))
-    (:nps (make-instance 'nps-assessment :responses responses))))
+(defun create-assessment (name responses)
+  (cond ((string= name "VISAWI")
+         (make-instance 'visawi-assessment :responses responses))
+        ((string= name "SUS")
+         (make-instance 'sus-assessment :responses responses))
+        ((string= name "NPS")
+         (make-instance 'nps-assessment :responses responses))
+        (t nil)))
 
 (defun parse-assessments (categorized-responses)
   (loop for (type data) on categorized-responses by #'cddr
@@ -127,6 +131,33 @@ ENTRY: Entry from a response."
           (mapcar entry-fn responses)
           :initial-value '()))
 
+(defun extract-names (questionnaires)
+  "Extract unique names from a list of questionnaires."
+  (remove-duplicates (mapcar (lambda (q)
+                               (getf q :name))
+                             questionnaires)
+                     :test #'string=))
+
+(defun filter-questionnaires (questionnaires name)
+  "Return a list of questionnaires with the given name."
+  (remove-if-not (lambda (q)
+                   (string= (getf q :name) name))
+                 questionnaires))
+
+(defun extract-data (questionnaire)
+  "Extract timestamp-created and post-params from a questionnaire."
+  (cons (getf questionnaire :timestamp-created)
+        (getf questionnaire :post-params)))
+
+(defun parse-questionnaires (questionnaires)
+  "Parse a list of questionnaires and create assessments for each unique name."
+  (let ((names (extract-names questionnaires)))
+    (mapcar (lambda (name)
+              (create-assessment (string-upcase name)
+                                 (mapcar #'extract-data
+                                         (filter-questionnaires questionnaires name))))
+            names)))
+
 (defun average-score-per-group (entry-fn responses)
   (let* ((values-per-group (aggregate-values-per-group entry-fn responses))
          (average-scores (loop for (category values) on values-per-group by #'cddr