Refactor loanEligibility

src/checkLoanEligibility.c

@@ -2,29 +2,19 @@
 #include "_file_information.h"
 
 bool checkLoanEligibility(int user_id) {
-
-    // Eligible only when user is present in CustomerDataFile 
-
-    bool keep_reading = true;
-    bool eligibility  = false;
-    char buffer[MAX_LENGTH];
-
     FILE *file = fopen(CUSTOMER_DATA_FILE, "r");
+    if (file == NULL) {
+        return false;
+    }
 
-    while(keep_reading) {
-        fgets(buffer, MAX_LENGTH, file);
-
-        if (feof(file)) {
-            keep_reading = false;
-        }
-        if(user_id == atoi(buffer)) {
-            eligibility  = true;
-            keep_reading = false;
+    int customer_id;
+    while (fscanf(file, "%d", &customer_id) == 1) {
+        if (customer_id == user_id) {
+            fclose(file);
+            return true;
         }
-
     }
 
     fclose(file);
-    return eligibility;
-
+    return false;
 }