From 6272a452ba3b52315086820d67189e507a4560d7 Mon Sep 17 00:00:00 2001
From: David Polakovic <email@dpolakovic.space>
Date: Mon, 1 Apr 2024 20:48:45 +0200
Subject: [PATCH] corrected ret & oem part2 subroutines

---
 generate-for | 38 +++++++++++++++++---------------------
 1 file changed, 17 insertions(+), 21 deletions(-)

diff --git a/generate-for b/generate-for
index c4eb906..012877a 100644
--- a/generate-for
+++ b/generate-for
@@ -13,19 +13,13 @@ sub generate95_ret_part1 {
     return $string;
 }
 
-# generates 7 digit number of which digit sum is 7 (e.g.: 4001110)
+# generates 7 digit number divisible by 7
 sub generate95_ret_part2 {
-    my $sum = shift;
-    my $string = "";
-
-    for my $i (1..6) {
-        my $digit = int(rand($sum + 1));
-        $sum -= $digit;
-        $string .= $digit;
-    }
-    $string .= $sum;
-
-    return $string;
+    my $num;
+    do {
+        $num = int(rand(9000000)) + 1000000;
+    } while ($num % 7 != 0); # Repeat until the number is divisible by 7
+    return $num;
 }
 
 # picks random two digit combination from the list
@@ -34,17 +28,19 @@ sub generate95_oem_part2 {
     my $random_index = int(rand(scalar @list));
     my $random_value = $list[$random_index];
 }
-# generates random 7 digit number, starting with "00"
+
+
+# generates random 7 digit number, starting with "00" and divisible by 7
 sub generate95_oem_part3 {
-    my $sum = shift;
-    my $string = "00";
+    my $string = "00"; # Start with "00"
 
-    for my $i (3..6) {  
-        my $digit = int(rand($sum + 1));
-        $sum -= $digit;
-        $string .= $digit;
+    while (1) {
+        my $number = int(rand(90000)) + 10000; 
+        if ($number % 7 == 0) { 
+            $string .= $number; 
+            last; 
+        }
     }
-    $string .= $sum;
 
     return $string;
 }
@@ -76,7 +72,7 @@ if (@ARGV == 0) {
 		my $result95_oem =
 		    $result95_oem_part1 .
 		    $result95_oem_part2 .
-		    "-dpo-" .
+		    "-OEM-" .
 		    $result95_oem_part3 .
 		    "-" .
 		    $result95_oem_part4;
-- 
2.30.2