From d4c6e58e30b2dd20760d6043f08272c4593677e8 Mon Sep 17 00:00:00 2001
From: Dr Masroor Ehsan <masroore@gmail.com>
Date: Thu, 30 Jan 2025 01:35:07 +0600
Subject: [PATCH] age - dob calculation

---
 app/Services/Pacs/Sync/StudiesSync.php | 51 +++++++++++++++++++-------
 1 file changed, 38 insertions(+), 13 deletions(-)

diff --git a/app/Services/Pacs/Sync/StudiesSync.php b/app/Services/Pacs/Sync/StudiesSync.php
index 24b2bbb..e0058b2 100644
--- a/app/Services/Pacs/Sync/StudiesSync.php
+++ b/app/Services/Pacs/Sync/StudiesSync.php
@@ -149,16 +149,28 @@ public function transformData(mixed $orthanc_src): array
         $patient_name = data_get($orthanc_src, 'PatientMainDicomTags.PatientName');
         $name_parts = tokenizeString($patient_name);
         $patient_age = data_get($orthanc_src, 'RequestedTags.PatientAge');
-        if (blank($patient_age)) {
+        if (blank($patient_age) && ! empty($name_parts)) {
             // try to get age from last part of patient name
-            if (! empty($name_parts)) {
-                $last = end($name_parts);
-                if (preg_match('/\d+Y/i', $last)) {
-                    $patient_age = strtoupper($last);
-                }
+            $last = end($name_parts);
+            if (preg_match('/^\d+[YMD]$/i', $last)) {
+                $patient_age = $last;
+                /*
+                // sanitize patient name
+                array_pop($name_parts);
+                $patient_name = implode(' ', $name_parts);
+                */
             }
         }
 
+        if ($patient_age !== null) {
+            $age = strtoupper(ltrim($patient_age, '0'));
+            if (strlen($age) > 1) {
+                $patient_age = $age;
+            }
+        }
+
+        // $patient_name = trim($patient_name, '.^ ');
+
         $descr = $this->getStudyDescription($orthanc_src);
         $study = [
             'dicom_server_id' => $this->dicomServer->id,
@@ -193,27 +205,40 @@ public function transformData(mixed $orthanc_src): array
         $study['workflow_level'] = $stable_study
             ? WorkflowLevel::Unassigned->value
             : WorkflowLevel::Received->value;
-        $study['patient_birthdate'] = null;
+
+        $patient_birthdate = null;
         $dob = data_get($orthanc_src, 'PatientMainDicomTags.PatientBirthDate');
         if (filled($dob)) {
             try {
-                $study['patient_birthdate'] = Carbon::parse($dob);
+                $patient_birthdate = Carbon::parse($dob);
             } catch (Exception $e) {
                 Log::error('Failed to parse PatientMainDicomTags.PatientBirthDate: {dob}', ['dob' => $dob, 'exception' => $e->getMessage()]);
             }
         }
 
-        if (($study['patient_birthdate'] == null) && $patient_age !== null) {
+        if ($patient_birthdate == null && $patient_age !== null) {
             try {
                 // $age = (int) preg_replace('/[^0-9]/', '', $patient_age);
-                $age = (int) filter_var($patient_age, FILTER_SANITIZE_NUMBER_INT);
-                $study['patient_birthdate'] = Carbon::now()->subYears($age);
-
+                $age_num = (int) filter_var($patient_age, FILTER_SANITIZE_NUMBER_INT);
+                $now = now();
+                switch (strtoupper(substr($patient_age, -1))) {
+                    case 'Y':
+                        $patient_birthdate = $now->subYears($age_num);
+                        break;
+                    case 'M':
+                        $patient_birthdate = $now->subMonths($age_num);
+                        break;
+                    case 'D':
+                        $patient_birthdate = $now->subDays($age_num);
+                        break;
+                }
             } catch (Exception) {
                 Log::error('Failed to parse patient_age: {age}', ['age' => $patient_age]);
             }
         }
 
+        $study['patient_birthdate'] = $patient_birthdate;
+
         // check for priority in patient name or description
         if (preg_match('/\b(urgent|stat)\b/i', implode(' ', [$descr, $patient_name]))) {
             $this->setValue($study, 'priority', Priority::Stat->value);
@@ -307,7 +332,7 @@ private function getStudyDicomTags(string $study_uuid): array
         // randomly sample few instances for tags collection
         $selectedInstances = count($instances) <= $this->maxInstances
             ? $instances
-            : array_rand(array_flip($instances), $this->maxInstances);
+            : array_intersect_key($instances, array_flip(array_rand($instances, $this->maxInstances)));
 
         $tags = collect();
         foreach ($selectedInstances as $instance) {