chore - add missing unknown priority

pkg/models/priority.go

@@ -4,18 +4,29 @@ const (
 	PriorityUrgent        string = "URGENT"
 	PriorityImportant     string = "IMPORTANT"
 	PriorityInformational string = "INFORMATIONAL"
+	PriorityUnknown       string = "UNKNOWN"
 )
 
 var priorityToInt = map[string]int{
-	PriorityInformational: 0,
-	PriorityImportant:     1,
-	PriorityUrgent:        2,
+	PriorityUnknown:       0,
+	PriorityInformational: 1,
+	PriorityImportant:     2,
+	PriorityUrgent:        3,
 }
 
 func ComparePriority(priority1, priority2 string) int {
 	val1, ok1 := priorityToInt[priority1]
 	val2, ok2 := priorityToInt[priority2]
 
+	// If priority1 is NONE and priority2 is not in the map, treat them as equal
+	if priority1 == PriorityUnknown && !ok2 {
+		return 0
+	}
+	// If priority2 is NONE and priority1 is not in the map, treat them as equal
+	if priority2 == PriorityUnknown && !ok1 {
+		return 0
+	}
+
 	if !ok1 && !ok2 {
 		return 0
 	} else if !ok1 {

pkg/models/priority_test.go

@@ -20,6 +20,10 @@ func TestComparePriority(t *testing.T) {
 		{"INFORMATIONAL", "INFORMATIONAL", 0},
 		{"IMPORTANT", "IMPORTANT", 0},
 		{"URGENT", "URGENT", 0},
+		{"NONE", "INVALID", 0},
+		{"NONE", "UNKNOWN", 0},
+		{"UNKNOWN", "", 0},
+		{"", "UNKNOWN", 0},
 	}
 
 	for _, test := range tests {