import 'dart:io';

import 'package:koi_swagger_parser/koi_swagger_parser.dart';
import 'package:koi_swagger_parser/src/openapi/openapi.dart';
import 'package:path/path.dart' as p;
import 'package:test/test.dart';

void main() {
  group('HTTP wire semantics', () {
    test(
      '生成 style/explode/cookie/allowReserved transport adapter 与表单',
      () async {
        final tempDir = await Directory.systemTemp.createTemp(
          'koi_swagger_parser_http_semantics_',
        );
        addTearDown(() => tempDir.delete(recursive: true));

        final specFile = File(p.join(tempDir.path, 'openapi.json'));
        await specFile.writeAsString(r'''
{
  "openapi": "3.1.0",
  "info": {"title": "HTTP Semantics", "version": "1.0.0"},
  "paths": {
    "/api/v1/items/{coordinates}": {
      "post": {
        "tags": ["items"],
        "operationId": "search_items",
        "parameters": [
          {
            "name": "coordinates",
            "in": "path",
            "required": true,
            "style": "matrix",
            "explode": false,
            "schema": {"type": "array", "items": {"type": "integer"}}
          },
          {
            "name": "filter",
            "in": "query",
            "style": "deepObject",
            "explode": true,
            "schema": {
              "type": "object",
              "properties": {
                "role": {"type": "string"},
                "active": {"type": "boolean"}
              }
            }
          },
          {
            "name": "sort",
            "in": "query",
            "style": "form",
            "explode": false,
            "schema": {"type": "array", "items": {"type": "string"}}
          },
          {
            "name": "fields",
            "in": "query",
            "style": "pipeDelimited",
            "schema": {"type": "array", "items": {"type": "string"}}
          },
          {
            "name": "redirect",
            "in": "query",
            "allowReserved": true,
            "schema": {"type": "string"}
          },
          {
            "name": "X-Flags",
            "in": "header",
            "schema": {"type": "array", "items": {"type": "string"}}
          },
          {
            "name": "session",
            "in": "cookie",
            "required": true,
            "schema": {"type": "string"}
          },
          {
            "name": "features",
            "in": "cookie",
            "explode": true,
            "schema": {"type": "array", "items": {"type": "string"}}
          }
        ],
        "requestBody": {
          "required": true,
          "content": {
            "application/x-www-form-urlencoded": {
              "schema": {
                "type": "object",
                "required": ["name", "state"],
                "properties": {
                  "name": {"type": "string"},
                  "state": {
                    "type": "string",
                    "enum": ["draft", "published"]
                  },
                  "labels": {
                    "type": "array",
                    "items": {"type": "string"}
                  }
                }
              }
            }
          }
        },
        "responses": {"204": {"description": "updated"}}
      }
    }
  }
}
''');

        final outputDir = p.join(tempDir.path, 'lib', 'src');
        final configFile = File(
          p.join(tempDir.path, 'koi_swagger_parser.yaml'),
        );
        await configFile.writeAsString('''
input:
  swagger_urls:
    - url: ${specFile.path}
output:
  base_dir: $outputDir
  api_dir: ${p.join(outputDir, 'api')}
  models_dir: ${p.join(outputDir, 'api_models')}
generation:
  api:
    response_wrapper:
      mode: passthrough
  models:
    class_prefix: Koi
formatting:
  run_dart_format: false
''');

        await const KoiSwaggerParser().generate(configPath: configFile.path);

        final apiFile = File(p.join(outputDir, 'api', 'v1', 'items_api.dart'));
        final api = await apiFile.readAsString();

        expect(api, contains('class ItemsApi {'));
        expect(api, contains('final _ItemsApiRetrofit _delegate;'));
        expect(api, contains('required List<int> coordinates'));
        expect(api, contains('@RestApi(parser: Parser.JsonSerializable)'));
        expect(api, contains('abstract class _ItemsApiRetrofit'));
        expect(
          api,
          contains("@POST('/api/v1/items/{coordinates}{reservedQuery}')"),
        );
        expect(
          api,
          contains("@Path('coordinates') required String coordinates"),
        );
        expect(api, contains("@Query('filter') required"));
        expect(api, contains("@Query('sort') required String? sort"));
        expect(api, contains("@Header('X-Flags') required String? xFlags"));
        expect(
          api,
          contains("@Header('Cookie') required String? cookieHeader"),
        );
        expect(
          api,
          contains("@Path('reservedQuery') required String reservedQuery"),
        );
        expect(api, contains('@FormUrlEncoded()'));
        expect(api, contains("@Field('state') required Object? state"));
        expect(api, contains('_openApiCookieHeader('));
        expect(api, contains('_openApiReservedQuery('));
        expect(api, contains("case 'matrix':"));
        expect(api, contains("'pipeDelimited' => '|'"));

        final format = await Process.run(Platform.resolvedExecutable, <String>[
          'format',
          '--output=none',
          apiFile.path,
        ]);
        expect(
          format.exitCode,
          0,
          reason: '${format.stdout}\n${format.stderr}',
        );
      },
    );

    test('可选 JSON body 生成 nullable 类型与 nullToAbsent', () async {
      final config = KoiSwaggerConfig(
        configPath: null,
        workingDirectory: Directory.current.path,
        input: const InputConfig(swaggerUrls: <String>[]),
        output: OutputConfig(
          baseDir: Directory.current.path,
          apiDir: p.join(Directory.current.path, 'api'),
          modelsDir: p.join(Directory.current.path, 'models'),
          splitByTags: true,
          extractVersionFromUrl: false,
        ),
        generation: GenerationConfig(
          preset: GeneratorPresetRegistry.koiFlutter,
          api: const ApiGenerationConfig(
            enabled: true,
            useRetrofit: true,
            cancelTokenSupport: false,
            client: ClientConfig(
              className: 'ApiClient',
              fileName: 'api_client',
            ),
            responseWrapper: ResponseWrapperConfig(
              mode: ResponseWrapperMode.passthrough,
              successDataField: 'data',
              detectStandardEnvelope: false,
            ),
          ),
          models: const ModelGenerationConfig(
            enabled: true,
            classPrefix: 'Koi',
            defaultNonNullableListToEmpty: true,
            jsonSerializable: JsonSerializableConfig(
              checked: true,
              explicitToJson: true,
              includeIfNull: false,
            ),
          ),
          formatting: const FormattingConfig(
            runDartFormat: false,
            runDartFix: false,
          ),
        ),
      );
      final parsed = OpenApiDocumentParser(config).parse(
        LoadedOpenApiDocument(
          document: <String, dynamic>{
            'openapi': '3.1.0',
            'info': <String, dynamic>{'title': 'optional body', 'version': '1'},
            'paths': <String, dynamic>{
              '/api/v1/items': <String, dynamic>{
                'post': <String, dynamic>{
                  'tags': <String>['items'],
                  'requestBody': <String, dynamic>{
                    'required': false,
                    'content': <String, dynamic>{
                      'application/json': <String, dynamic>{
                        'schema': <String, dynamic>{
                          'type': 'object',
                          'properties': <String, dynamic>{
                            'name': <String, dynamic>{'type': 'string'},
                          },
                        },
                      },
                    },
                  },
                  'responses': <String, dynamic>{
                    '204': <String, dynamic>{'description': 'ok'},
                  },
                },
              },
            },
          },
          sources: const <String>['memory://optional-body'],
        ),
      );

      expect(parsed.operations.single.requestBody!.type!.nullable, isTrue);
    });
  });
}