simplify?

Author: chrisgorgo

validators/nii.js

@@ -159,29 +159,27 @@ module.exports = function NIFTI (header, file, jsonContentsDict, bContentsDict,
                 }));
             }
 
-            if(header) {
-                if (typeof repetitionTime === 'undefined') {
+            if (typeof repetitionTime === 'undefined' && header) {
+                issues.push(new Issue({
+                    file: file,
+                    code: 75
+                }));
+            }
+            else if (mergedDictionary.RepetitionTime && header) {
+                if (repetitionUnit !== 's') {
                     issues.push(new Issue({
                         file: file,
-                        code: 75
+                        code: 11
                     }));
-                }
-                else if (mergedDictionary.RepetitionTime) {
-                    if (repetitionUnit !== 's') {
+                } else {
+                    var niftiTR = Number((repetitionTime).toFixed(3));
+                    var jsonTR = Number((mergedDictionary.RepetitionTime).toFixed(3));
+                    if (niftiTR !== jsonTR) {
                         issues.push(new Issue({
                             file: file,
-                            code: 11
+                            code: 12,
+                            reason: "Repetition time defined in the JSON (" + jsonTR + " sec.) did not match the one defined in the NIFTI header (" + niftiTR + " sec.)"
                         }));
-                    } else {
-                        var niftiTR = Number((repetitionTime).toFixed(3));
-                        var jsonTR = Number((mergedDictionary.RepetitionTime).toFixed(3));
-                        if (niftiTR !== jsonTR) {
-                            issues.push(new Issue({
-                                file: file,
-                                code: 12,
-                                reason: "Repetition time defined in the JSON (" + jsonTR + " sec.) did not match the one defined in the NIFTI header (" + niftiTR + " sec.)"
-                            }));
-                        }
                     }
                 }
             }