adding relative time to MONTH_EQ, YEAR_EQ

Author: goglue

helper.go

@@ -287,11 +287,29 @@ func compareTimePart(actual any, expected any, op Operator) (bool, error) {
 	if !ok {
 		return false, newError(errType, actual)
 	}
-	value, err := toFloat(expected)
-	if err != nil {
-		return false, err
+
+	var target int
+	switch v := expected.(type) {
+	case string:
+		resolved, err := resolveExpectedTime(v, time.Now())
+		if err != nil {
+			return false, err
+		}
+		switch op {
+		case YearEq:
+			target = resolved.Year()
+		case MonthEq:
+			target = int(resolved.Month())
+		default:
+			return false, nil
+		}
+	default:
+		value, err := toFloat(expected)
+		if err != nil {
+			return false, err
+		}
+		target = int(value)
 	}
-	target := int(value)
 
 	switch op {
 	case YearEq:

rulesengine_test.go

@@ -368,6 +368,20 @@ var (
 			inputData: map[string]any{"startDate": relativeTime},
 			expResult: RuleResult{Result: true},
 		},
+		{
+			ruleNodes: Rule{
+				Operator: YearEq, Field: "startDate", Value: "thisYear-1",
+			},
+			inputData: map[string]any{"startDate": relativeTime.AddDate(-1, 0, 0)},
+			expResult: RuleResult{Result: true},
+		},
+		{
+			ruleNodes: Rule{
+				Operator: MonthEq, Field: "startDate", Value: "thisMonth",
+			},
+			inputData: map[string]any{"startDate": time.Date(relativeNow.Year(), relativeNow.Month(), 1, 12, 0, 0, 0, relativeNow.Location())},
+			expResult: RuleResult{Result: true},
+		},
 		{
 			ruleNodes: Rule{
 				Operator: WithinLast, Field: "startDate", Value: last10Sec,