Extract schema validation to SDK

Signed-off-by: Mauro Morales <mauro.morales@spectrocloud.com>

pkg/config/config_test.go

@@ -16,11 +16,15 @@
 package config_test
 
 import (
+	"fmt"
 	"os"
+	"reflect"
+	"strings"
 
-	// . "github.com/kairos-io/kairos/v2/pkg/config"
+	. "github.com/kairos-io/kairos-sdk/schema"
+	. "github.com/kairos-io/kairos/v2/pkg/config"
 	. "github.com/onsi/ginkgo/v2"
-	// . "github.com/onsi/gomega"
+	. "github.com/onsi/gomega"
 )
 
 type TConfig struct {
@@ -42,3 +46,76 @@ var _ = Describe("Config", func() {
 		}
 	})
 })
+
+func getTagName(s string) string {
+	if len(s) < 1 {
+		return ""
+	}
+
+	if s == "-" {
+		return ""
+	}
+
+	f := func(c rune) bool {
+		return c == '"' || c == ','
+	}
+	return s[:strings.IndexFunc(s, f)]
+}
+
+func structContainsField(f, t string, str interface{}) bool {
+	values := reflect.ValueOf(str)
+	types := values.Type()
+
+	for j := 0; j < values.NumField(); j++ {
+		tagName := getTagName(types.Field(j).Tag.Get("json"))
+		if types.Field(j).Name == f || tagName == t {
+			return true
+		} else {
+			if types.Field(j).Type.Kind() == reflect.Struct {
+				if types.Field(j).Type.Name() != "" {
+					model := reflect.New(types.Field(j).Type)
+					if instance, ok := model.Interface().(OneOfModel); ok {
+						for _, childSchema := range instance.JSONSchemaOneOf() {
+							if structContainsField(f, t, childSchema) {
+								return true
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+
+	return false
+}
+
+func structFieldsContainedInOtherStruct(left, right interface{}) {
+	leftValues := reflect.ValueOf(left)
+	leftTypes := leftValues.Type()
+
+	for i := 0; i < leftValues.NumField(); i++ {
+		leftTagName := getTagName(leftTypes.Field(i).Tag.Get("yaml"))
+		leftFieldName := leftTypes.Field(i).Name
+		if leftTypes.Field(i).IsExported() {
+			It(fmt.Sprintf("Checks that the new schema contians the field %s", leftFieldName), func() {
+				Expect(
+					structContainsField(leftFieldName, leftTagName, right),
+				).To(BeTrue())
+			})
+		}
+	}
+}
+
+var _ = Describe("Schema", func() {
+	Context("NewConfigFromYAML", func() {
+		Context("While the new Schema is not the single source of truth", func() {
+			structFieldsContainedInOtherStruct(Config{}, RootSchema{})
+		})
+		Context("While the new InstallSchema is not the single source of truth", func() {
+			structFieldsContainedInOtherStruct(Install{}, InstallSchema{})
+		})
+		Context("While the new BundleSchema is not the single source of truth", func() {
+			structFieldsContainedInOtherStruct(Bundle{}, BundleSchema{})
+		})
+	})
+})