fix: check alert rule queries are all disabled if at least one query …

…is set (#5966)

pkg/query-service/rules/api_params.go

@@ -170,18 +170,62 @@ func isValidLabelValue(v string) bool {
 	return utf8.ValidString(v)
 }
 
+func isAllQueriesDisabled(compositeQuery *v3.CompositeQuery) bool {
+	if compositeQuery == nil {
+		return false
+	}
+	if compositeQuery.BuilderQueries == nil && compositeQuery.PromQueries == nil && compositeQuery.ClickHouseQueries == nil {
+		return false
+	}
+	switch compositeQuery.QueryType {
+	case v3.QueryTypeBuilder:
+		if len(compositeQuery.BuilderQueries) == 0 {
+			return false
+		}
+		for _, query := range compositeQuery.BuilderQueries {
+			if !query.Disabled {
+				return false
+			}
+		}
+	case v3.QueryTypePromQL:
+		if len(compositeQuery.PromQueries) == 0 {
+			return false
+		}
+		for _, query := range compositeQuery.PromQueries {
+			if !query.Disabled {
+				return false
+			}
+		}
+	case v3.QueryTypeClickHouseSQL:
+		if len(compositeQuery.ClickHouseQueries) == 0 {
+			return false
+		}
+		for _, query := range compositeQuery.ClickHouseQueries {
+			if !query.Disabled {
+				return false
+			}
+		}
+	}
+	return true
+}
+
 func (r *PostableRule) Validate() error {
 
 	var errs []error
 
 	if r.RuleCondition == nil {
-		errs = append(errs, errors.Errorf("rule condition is required"))
+		// will get panic if we try to access CompositeQuery, so return here
+		return errors.Errorf("rule condition is required")
 	} else {
 		if r.RuleCondition.CompositeQuery == nil {
 			errs = append(errs, errors.Errorf("composite metric query is required"))
 		}
 	}
 
+	if isAllQueriesDisabled(r.RuleCondition.CompositeQuery) {
+		errs = append(errs, errors.Errorf("all queries are disabled in rule condition"))
+	}
+
 	if r.RuleType == RuleTypeThreshold {
 		if r.RuleCondition.Target == nil {
 			errs = append(errs, errors.Errorf("rule condition missing the threshold"))

pkg/query-service/rules/api_params_test.go

@@ -0,0 +1,86 @@
+package rules
+
+import (
+	"testing"
+
+	v3 "go.signoz.io/signoz/pkg/query-service/model/v3"
+)
+
+func TestIsAllQueriesDisabled(t *testing.T) {
+	testCases := []*v3.CompositeQuery{
+		&v3.CompositeQuery{
+			BuilderQueries: map[string]*v3.BuilderQuery{
+				"query1": {
+					Disabled: true,
+				},
+				"query2": {
+					Disabled: true,
+				},
+			},
+			QueryType: v3.QueryTypeBuilder,
+		},
+		nil,
+		&v3.CompositeQuery{
+			QueryType: v3.QueryTypeBuilder,
+		},
+		&v3.CompositeQuery{
+			QueryType: v3.QueryTypeBuilder,
+			BuilderQueries: map[string]*v3.BuilderQuery{
+				"query1": {
+					Disabled: true,
+				},
+				"query2": {
+					Disabled: false,
+				},
+			},
+		},
+		&v3.CompositeQuery{
+			QueryType: v3.QueryTypePromQL,
+		},
+		&v3.CompositeQuery{
+			QueryType: v3.QueryTypePromQL,
+			PromQueries: map[string]*v3.PromQuery{
+				"query3": {
+					Disabled: false,
+				},
+			},
+		},
+		&v3.CompositeQuery{
+			QueryType: v3.QueryTypePromQL,
+			PromQueries: map[string]*v3.PromQuery{
+				"query3": {
+					Disabled: true,
+				},
+			},
+		},
+		&v3.CompositeQuery{
+			QueryType: v3.QueryTypeClickHouseSQL,
+		},
+		&v3.CompositeQuery{
+			QueryType: v3.QueryTypeClickHouseSQL,
+			ClickHouseQueries: map[string]*v3.ClickHouseQuery{
+				"query4": {
+					Disabled: false,
+				},
+			},
+		},
+		&v3.CompositeQuery{
+			QueryType: v3.QueryTypeClickHouseSQL,
+			ClickHouseQueries: map[string]*v3.ClickHouseQuery{
+				"query4": {
+					Disabled: true,
+				},
+			},
+		},
+	}
+
+	expectedResult := []bool{true, false, false, false, false, false, true, false, false, true}
+
+	for index, compositeQuery := range testCases {
+		expected := expectedResult[index]
+		actual := isAllQueriesDisabled(compositeQuery)
+		if actual != expected {
+			t.Errorf("Expected %v, but got %v", expected, actual)
+		}
+	}
+}