// ==========================================================================
//  Squidex Headless CMS
// ==========================================================================
//  Copyright (c) Squidex UG (haftungsbeschränkt)
//  All rights reserved. Licensed under the MIT license.
// ==========================================================================

using System.Threading.Tasks;
using GraphQL;
using Xunit;

namespace Squidex.Domain.Apps.Entities.Contents.GraphQL
{
    public class GraphQLIntrospectionTests : GraphQLTestBase
    {
        [Fact]
        public async Task Should_introspect()
        {
            const string query = @"
                query IntrospectionQuery {
                  __schema {
                    queryType { name }
                    mutationType { name }
                    subscriptionType { name }
                    types {
                      ...FullType
                    }
                    directives {
                      name
                      description
                      args {
                        ...InputValue
                      }
                      onOperation
                      onFragment
                      onField
                    }
                  }
                }

                fragment FullType on __Type {
                  kind
                  name
                  description
                  fields(includeDeprecated: true) {
                    name
                    description
                    args {
                      ...InputValue
                    }
                    type {
                      ...TypeRef
                    }
                    isDeprecated
                    deprecationReason
                  }
                  inputFields {
                    ...InputValue
                  }
                  interfaces {
                    ...TypeRef
                  }
                  enumValues(includeDeprecated: true) {
                    name
                    description
                    isDeprecated
                    deprecationReason
                  }
                  possibleTypes {
                    ...TypeRef
                  }
                }

                fragment InputValue on __InputValue {
                  name
                  description
                  type { ...TypeRef }
                  defaultValue
                }

                fragment TypeRef on __Type {
                  kind
                  name
                  ofType {
                    kind
                    name
                    ofType {
                      kind
                      name
                      ofType {
                        kind
                        name
                      }
                    }
                  }
                }";

            var result = await ExecuteAsync(new ExecutionOptions { Query = query, OperationName = "IntrospectionQuery" });

            var json = serializer.Serialize(result.Data, true);

            Assert.NotEmpty(json);
        }
    }
}