multi IDP 모델 적용 scaffolding

backend/internal/validator/schema_validator.go

@@ -0,0 +1,62 @@
+package validator
+
+import (
+	"baron-sso-backend/internal/domain"
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+// ValidateIDPCompatibility checks if the provided IDP supports all required fields defined in the BrokerUser model.
+func ValidateIDPCompatibility(brokerModel interface{}, idp domain.IdentityProvider) error {
+	metadata, err := idp.GetMetadata()
+	if err != nil {
+		return fmt.Errorf("failed to fetch metadata from IDP %s: %w", idp.Name(), err)
+	}
+
+	supportedMap := make(map[string]bool)
+	for _, f := range metadata.SupportedFields {
+		supportedMap[f] = true
+	}
+
+	t := reflect.TypeOf(brokerModel)
+	if t.Kind() == reflect.Ptr {
+		t = t.Elem()
+	}
+
+	for i := 0; i < t.NumField(); i++ {
+		field := t.Field(i)
+
+		// Check "required" tag
+		isRequired := field.Tag.Get("required") == "true"
+		jsonTag := field.Tag.Get("json")
+		fieldName := strings.Split(jsonTag, ",")[0]
+
+		// Skip if fieldName is empty or if it's the Attributes map (handled separately)
+		if fieldName == "" {
+			continue
+		}
+
+		if fieldName != "attributes" {
+			if isRequired && !supportedMap[fieldName] {
+				return fmt.Errorf("IDP %s does not support required field: %s", idp.Name(), fieldName)
+			}
+		}
+
+		// Check "required_keys" tag for map types (Custom Attributes)
+		if fieldName == "attributes" {
+			reqKeys := field.Tag.Get("required_keys")
+			if reqKeys != "" {
+				keys := strings.Split(reqKeys, ",")
+				for _, key := range keys {
+					key = strings.TrimSpace(key)
+					if !supportedMap[key] {
+						return fmt.Errorf("IDP %s does not support required custom attribute: %s", idp.Name(), key)
+					}
+				}
+			}
+		}
+	}
+
+	return nil
+}

backend/internal/validator/schema_validator_test.go

@@ -0,0 +1,78 @@
+package validator
+
+import (
+	"baron-sso-backend/internal/domain"
+	"testing"
+)
+
+// MockProvider는 IdentityProvider 인터페이스를 구현하는 테스트용 구조체입니다.
+type MockProvider struct {
+	Supported []string
+}
+
+func (m *MockProvider) Name() string {
+	return "MockIDP"
+}
+
+func (m *MockProvider) GetMetadata() (*domain.IDPMetadata, error) {
+	return &domain.IDPMetadata{
+		SupportedFields: m.Supported,
+	}, nil
+}
+
+func TestValidateIDPCompatibility(t *testing.T) {
+	// BrokerUser 모델은 다음과 같이 정의되어 있다고 가정합니다 (idp_models.go 참조):
+	// ID (required), Email (required), Name, PhoneNumber
+	// Attributes (required_keys: "grade", "department")
+
+	tests := []struct {
+		name      string
+		supported []string
+		wantErr   bool
+	}{
+		{
+			name:      "성공: 모든 필수 필드 지원",
+			supported: []string{"id", "email", "name", "grade", "department"},
+			wantErr:   false,
+		},
+		{
+			name:      "성공: 선택 필드(name) 누락이어도 성공",
+			supported: []string{"id", "email", "grade", "department"},
+			wantErr:   false,
+		},
+		{
+			name:      "실패: 필수 필드(id) 누락",
+			supported: []string{"email", "grade", "department"},
+			wantErr:   true,
+		},
+		{
+			name:      "실패: 필수 필드(email) 누락",
+			supported: []string{"id", "grade", "department"},
+			wantErr:   true,
+		},
+		{
+			name:      "실패: 커스텀 속성(grade) 누락",
+			supported: []string{"id", "email", "department"},
+			wantErr:   true,
+		},
+		{
+			name:      "실패: 커스텀 속성(department) 누락",
+			supported: []string{"id", "email", "grade"},
+			wantErr:   true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// 테스트용 IDP Provider 생성
+			mockIDP := &MockProvider{Supported: tt.supported}
+
+			// 검증 수행
+			err := ValidateIDPCompatibility(domain.BrokerUser{}, mockIDP)
+
+			if (err != nil) != tt.wantErr {
+				t.Errorf("ValidateIDPCompatibility() error = %v, wantErr %v", err, tt.wantErr)
+			}
+		})
+	}
+}