From 2af7a0f32afcf57e7aa2c3c848f77e16d194c1dc Mon Sep 17 00:00:00 2001
From: Chong Chee Yuan <32454748+ccyccyccy@users.noreply.github.com>
Date: Tue, 21 Jan 2020 01:44:35 +0800
Subject: [PATCH] Fix issue where modules with only sem2 lessons are
 interpreted as error (#251)

---
 .../seedu/address/model/timetable/TimetableInput.java     | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/main/java/seedu/address/model/timetable/TimetableInput.java b/src/main/java/seedu/address/model/timetable/TimetableInput.java
index 1bec690d54e..6510dfb7419 100644
--- a/src/main/java/seedu/address/model/timetable/TimetableInput.java
+++ b/src/main/java/seedu/address/model/timetable/TimetableInput.java
@@ -89,8 +89,14 @@ private List<TimeRange> getTimeRangesForModule(String moduleCode, List<String> g
      */
     private List<TimeRange> getTimeRangeFromEntry(JsonNode moduleNode, String group, String lessonType, int sem, String moduleCode) throws IllegalValueException, JsonProcessingException {
         List<JsonNode> targets = new ArrayList<>();
+        int semIndex;
+        if(moduleNode.path("semesterData").path(0).path("semester").asInt() == 1) {
+            semIndex = sem - 1;
+        } else {
+            semIndex = sem - 2;
+        }
         moduleNode.path("semesterData")
-                .path(sem - 1) // Sem 1
+                .path(semIndex) // Sem 1
                 .path("timetable")
                 .forEach(node -> {
                     if (node.path("classNo").asText().equals(group) && node.path("lessonType").asText().equals(lessonType)) {