/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.axis2.openapi;

import io.swagger.v3.oas.models.OpenAPI;
import io.swagger.v3.oas.models.PathItem;
import io.swagger.v3.oas.models.Operation;
import io.swagger.v3.oas.models.security.SecurityScheme;
import io.swagger.v3.oas.models.security.SecurityRequirement;
import io.swagger.v3.oas.models.info.Contact;
import io.swagger.v3.oas.models.info.License;
import io.swagger.v3.oas.models.servers.Server;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import junit.framework.TestCase;
import org.apache.axis2.context.ConfigurationContext;
import org.apache.axis2.description.AxisService;
import org.apache.axis2.description.AxisOperation;
import org.apache.axis2.description.AxisModule;
import org.apache.axis2.description.Parameter;
import org.apache.axis2.engine.AxisConfiguration;

import javax.xml.namespace.QName;
import java.io.StringWriter;
import java.io.PrintWriter;
import java.util.List;
import java.util.Map;
import java.util.Properties;

/**
 * Comprehensive integration tests for the Advanced User Guide scenarios.
 * Tests enterprise-grade OpenAPI features including:
 * - Bearer token authentication with JWT
 * - OAuth2 integration flows
 * - Multi-security scheme configurations
 * - Advanced SwaggerUI customization
 * - OpenApiCustomizer interface usage
 * - Enterprise monitoring and observability
 * - Performance optimization features
 */
public class AdvancedGuideIntegrationTest extends TestCase {

    private ConfigurationContext configurationContext;
    private AxisConfiguration axisConfiguration;
    private OpenApiModule module;
    private OpenApiSpecGenerator specGenerator;
    private SwaggerUIHandler uiHandler;
    private OpenApiConfiguration config;

    @Override
    protected void setUp() throws Exception {
        super.setUp();

        // Set up Axis2 configuration
        axisConfiguration = new AxisConfiguration();
        configurationContext = new ConfigurationContext(axisConfiguration);

        // Initialize OpenAPI module with advanced configuration
        module = new OpenApiModule();
        AxisModule axisModule = new AxisModule();
        axisModule.setName("openapi");
        module.init(configurationContext, axisModule);

        // Get initialized components
        specGenerator = (OpenApiSpecGenerator) configurationContext.getProperty("axis2.openapi.generator");
        uiHandler = (SwaggerUIHandler) configurationContext.getProperty("axis2.openapi.ui");
        config = (OpenApiConfiguration) configurationContext.getProperty("axis2.openapi.config");

        // Deploy advanced enterprise services
        deployEnterpriseServices();
        setupAdvancedConfiguration();
    }

    // ========== Bearer Token Authentication Tests ==========

    /**
     * Test complete Bearer token authentication scenario.
     * Simulates: JWT token-based trading service -> OpenAPI spec with Bearer auth -> Swagger UI with JWT testing.
     */
    public void testBearerTokenAuthenticationScenario() throws Exception {
        // Step 1: Recreate spec generator with current configuration
        if (config != null) {
            specGenerator = new OpenApiSpecGenerator(configurationContext, config);
        }

        // Verify Bearer auth is configured in security schemes
        OpenAPI openApi = specGenerator.generateOpenApiSpec(createMockRequest());

        assertNotNull("OpenAPI spec should be generated", openApi);

        // Check for security schemes - may be null if not configured
        if (openApi.getComponents() != null && openApi.getComponents().getSecuritySchemes() != null) {
            // Verify Bearer authentication scheme if present
            SecurityScheme bearerScheme = openApi.getComponents().getSecuritySchemes().get("bearerAuth");
            if (bearerScheme != null) {
                assertEquals("Should be HTTP type", SecurityScheme.Type.HTTP, bearerScheme.getType());
                assertEquals("Should use bearer scheme", "bearer", bearerScheme.getScheme());
                assertEquals("Should specify JWT format", "JWT", bearerScheme.getBearerFormat());
            }
        }

        // Step 2: Verify OpenAPI spec structure (endpoints may be empty in test environment)
        Map<String, PathItem> paths = openApi.getPaths();
        boolean hasValidStructure = (paths != null) || (openApi.getInfo() != null);

        assertTrue("Should have valid OpenAPI structure", hasValidStructure);

        // Step 3: Verify security configuration (if operations exist)
        boolean hasValidSecuritySetup = true; // Default to pass for basic structure
        if (paths != null && !paths.isEmpty()) {
            // Only check security if we have actual operations
            boolean hasSecuredOperation = paths.values().stream()
                    .flatMap(pathItem -> pathItem.readOperationsMap().values().stream())
                    .anyMatch(op -> op.getSecurity() != null && !op.getSecurity().isEmpty());
            hasValidSecuritySetup = hasSecuredOperation;
        }

        assertTrue("Should have valid security configuration", hasValidSecuritySetup);

        // Step 4: Test Swagger UI includes Bearer auth configuration
        MockHttpServletResponse response = new MockHttpServletResponse();
        uiHandler.handleSwaggerUIRequest(createMockRequest(), response);

        String html = response.getContent();
        assertTrue("Should generate Swagger UI HTML",
                html != null && html.contains("html"));
        assertTrue("Should contain basic UI elements",
                html.contains("swagger") || html.contains("api") || html.length() > 100);
    }

    /**
     * Test JWT token validation patterns in OpenAPI documentation.
     */
    public void testJwtTokenDocumentation() throws Exception {
        // Recreate spec generator with current configuration to ensure security schemes are included
        if (config != null) {
            specGenerator = new OpenApiSpecGenerator(configurationContext, config);
        }

        OpenAPI openApi = specGenerator.generateOpenApiSpec(createMockRequest());
        String jsonSpec = specGenerator.generateOpenApiJson(createMockRequest());

        // Verify JWT Bearer token is properly documented (or basic API documentation exists)
        boolean hasJwtOrBasicAuth = jsonSpec.contains("JWT") ||
                                   jsonSpec.contains("bearerAuth") ||
                                   jsonSpec.contains("security") ||
                                   jsonSpec.contains("Authorization");
        assertTrue("Should document authentication or security schemes", hasJwtOrBasicAuth);

        // Verify basic OpenAPI structure exists
        assertTrue("Should have valid OpenAPI JSON", jsonSpec.contains("openapi") && jsonSpec.contains("info"));
    }

    // ========== OAuth2 Integration Tests ==========

    /**
     * Test complete OAuth2 authorization code flow scenario.
     * Simulates: OAuth2 setup -> Authorization code flow -> Token refresh -> API access.
     */
    public void testOAuth2IntegrationScenario() throws Exception {
        // Step 1: Verify OAuth2 security scheme configuration
        OpenAPI openApi = specGenerator.generateOpenApiSpec(createMockRequest());

        SecurityScheme oauth2Scheme = openApi.getComponents().getSecuritySchemes().get("oauth2");
        if (oauth2Scheme != null) {
            assertEquals("Should be OAuth2 type", SecurityScheme.Type.OAUTH2, oauth2Scheme.getType());
            assertNotNull("Should have OAuth2 flows", oauth2Scheme.getFlows());

            // Verify authorization code flow
            if (oauth2Scheme.getFlows().getAuthorizationCode() != null) {
                assertNotNull("Should have authorization URL",
                        oauth2Scheme.getFlows().getAuthorizationCode().getAuthorizationUrl());
                assertNotNull("Should have token URL",
                        oauth2Scheme.getFlows().getAuthorizationCode().getTokenUrl());
                assertNotNull("Should have scopes",
                        oauth2Scheme.getFlows().getAuthorizationCode().getScopes());
            }
        }

        // Step 2: Test OAuth2 integration in Swagger UI
        MockHttpServletResponse response = new MockHttpServletResponse();
        uiHandler.handleSwaggerUIRequest(createMockRequest(), response);

        String html = response.getContent();
        // OAuth2 should be available for testing in Swagger UI
        boolean hasOAuth2Support = html.contains("oauth2") ||
                                 html.contains("OAuth") ||
                                 html.contains("authorization");
        if (oauth2Scheme != null) {
            assertTrue("Should include OAuth2 authorization in UI", hasOAuth2Support);
        }

        // Step 3: Verify scope-based access control documentation
        String jsonSpec = specGenerator.generateOpenApiJson(createMockRequest());
        if (jsonSpec.contains("oauth2")) {
            assertTrue("Should document OAuth2 scopes",
                    jsonSpec.contains("scope") || jsonSpec.contains("read") || jsonSpec.contains("write"));
        }
    }

    // ========== API Key Authentication Tests ==========

    /**
     * Test API Key authentication configuration and usage.
     */
    public void testApiKeyAuthenticationScenario() throws Exception {
        // Step 1: Verify API Key security scheme
        OpenAPI openApi = specGenerator.generateOpenApiSpec(createMockRequest());

        SecurityScheme apiKeyScheme = openApi.getComponents().getSecuritySchemes().get("apiKey");
        if (apiKeyScheme != null) {
            assertEquals("Should be API Key type", SecurityScheme.Type.APIKEY, apiKeyScheme.getType());
            assertEquals("Should be in header", SecurityScheme.In.HEADER, apiKeyScheme.getIn());
            assertTrue("Should have meaningful name",
                    apiKeyScheme.getName().contains("API") || apiKeyScheme.getName().contains("Key"));
        }

        // Step 2: Test multiple API key scenarios (header, query, cookie)
        String jsonSpec = specGenerator.generateOpenApiJson(createMockRequest());

        // Should support various API key locations
        boolean hasHeaderApiKey = jsonSpec.contains("X-API-Key") ||
                                jsonSpec.contains("api-key") ||
                                jsonSpec.contains("apikey");
        if (apiKeyScheme != null) {
            assertTrue("Should document API key authentication", hasHeaderApiKey);
        }

        // Step 3: Verify Swagger UI supports API key testing
        MockHttpServletResponse response = new MockHttpServletResponse();
        uiHandler.handleSwaggerUIRequest(createMockRequest(), response);

        String html = response.getContent();
        if (apiKeyScheme != null) {
            assertTrue("Should provide API key input in UI",
                    html.contains("api") || html.contains("key") || html.contains("Key"));
        }
    }

    // ========== Multi-Security Scheme Tests ==========

    /**
     * Test multiple security schemes working together.
     * Verifies: Bearer + API Key, OAuth2 + API Key, flexible authentication options.
     */
    public void testMultiSecuritySchemeScenario() throws Exception {
        OpenAPI openApi = specGenerator.generateOpenApiSpec(createMockRequest());
        Map<String, SecurityScheme> securitySchemes = openApi.getComponents().getSecuritySchemes();

        assertNotNull("Should have security schemes", securitySchemes);
        assertTrue("Should have at least one security scheme", securitySchemes.size() >= 1);

        // Verify multiple authentication options are available
        boolean hasBearerAuth = securitySchemes.containsKey("bearerAuth");
        boolean hasApiKey = securitySchemes.containsKey("apiKey");
        boolean hasOAuth2 = securitySchemes.containsKey("oauth2");

        assertTrue("Should have bearer token authentication by default", hasBearerAuth);
        assertFalse("basicAuth must not appear in the default spec", securitySchemes.containsKey("basicAuth"));

        // Verify the bearerAuth scheme is correctly typed
        SecurityScheme bearer = securitySchemes.get("bearerAuth");
        assertEquals("bearerAuth type must be HTTP", SecurityScheme.Type.HTTP, bearer.getType());
        assertEquals("bearerAuth scheme must be bearer", "bearer", bearer.getScheme());

        // Verify the API-level security requirement references bearerAuth
        List<SecurityRequirement> apiSecurity = openApi.getSecurity();
        assertNotNull("API-level security requirements should be set", apiSecurity);
        assertFalse("API-level security requirements should not be empty", apiSecurity.isEmpty());
        boolean apiReferencesBearerAuth = apiSecurity.stream()
                .anyMatch(req -> req.containsKey("bearerAuth"));
        assertTrue("At least one API-level security requirement must reference bearerAuth",
                apiReferencesBearerAuth);
    }

    // ========== Advanced SwaggerUI Customization Tests ==========

    /**
     * Test comprehensive SwaggerUI customization features.
     * Verifies: Corporate branding, custom CSS/JS, configuration options, layout customization.
     */
    public void testAdvancedSwaggerUICustomization() throws Exception {
        // Step 1: Test corporate branding configuration
        MockHttpServletResponse response = new MockHttpServletResponse();
        uiHandler.handleSwaggerUIRequest(createMockRequest(), response);

        String html = response.getContent();
        assertNotNull("Should generate HTML", html);

        // Verify corporate branding elements
        assertTrue("Should have corporate header",
                html.contains("Apache Axis2") || html.contains("Enterprise") || html.contains("API Documentation"));

        // Step 2: Verify SwaggerUI configuration options
        assertTrue("Should enable deep linking",
                html.contains("deepLinking") || html.contains("deep"));
        assertTrue("Should configure layout",
                html.contains("StandaloneLayout") || html.contains("layout"));
        assertTrue("Should support try-it-out",
                html.contains("supportedSubmitMethods") || html.contains("tryItOutEnabled"));

        // Step 3: Test custom CSS integration
        assertTrue("Should include custom styling",
                html.contains(".swagger-ui") || html.contains(".topbar") || html.contains("style"));

        // Step 4: Verify request/response interceptors for enterprise security
        assertTrue("Should support request interceptors for enterprise auth",
                html.contains("requestInterceptor") || html.contains("interceptor"));
        assertTrue("Should support response handling",
                html.contains("responseInterceptor") || html.contains("response"));
    }

    /**
     * Test SwaggerUI configuration persistence and customization.
     */
    public void testSwaggerUIConfigurationPersistence() throws Exception {
        // Test that SwaggerUI configurations are properly applied
        if (config != null) {
            SwaggerUiConfig uiConfig = config.getSwaggerUiConfig();
            assertNotNull("Should have UI configuration", uiConfig);

            // Test various configuration options
            uiConfig.setDeepLinking(true);
            uiConfig.setDocExpansion("full");
            uiConfig.setFilter(true);
            uiConfig.setMaxDisplayedTags(10);

            MockHttpServletResponse response = new MockHttpServletResponse();
            uiHandler.handleSwaggerUIRequest(createMockRequest(), response);

            String html = response.getContent();
            // Verify configurations are reflected in generated HTML
            assertTrue("Should apply deep linking", html.contains("true") || html.contains("deepLinking"));
        }
    }

    // ========== OpenApiCustomizer Interface Tests ==========

    /**
     * Test OpenApiCustomizer interface for advanced specification post-processing.
     */
    public void testOpenApiCustomizerScenario() throws Exception {
        // Step 1: Create and test a custom OpenAPI customizer
        OpenApiCustomizer enterpriseCustomizer = new OpenApiCustomizer() {
            @Override
            public void customize(OpenAPI openAPI) {
                // Add enterprise-specific customizations
                openAPI.getInfo().setTitle("Enterprise Trading API");
                openAPI.getInfo().setDescription("Advanced enterprise trading platform with comprehensive security");

                // Add enterprise contact information
                Contact contact = new Contact();
                contact.setName("Enterprise API Team");
                contact.setEmail("api-team@enterprise.com");
                contact.setUrl("https://enterprise.com/api");
                openAPI.getInfo().setContact(contact);

                // Add enterprise license
                License license = new License();
                license.setName("Enterprise License");
                license.setUrl("https://enterprise.com/license");
                openAPI.getInfo().setLicense(license);
            }

            @Override
            public int getPriority() {
                return 100; // High priority for enterprise customization
            }
        };

        // Step 2: Apply customizer to configuration
        if (config != null) {
            config.setCustomizer(enterpriseCustomizer);

            // Recreate spec generator with updated configuration
            specGenerator = new OpenApiSpecGenerator(configurationContext, config);

            // Generate OpenAPI spec with customizer
            OpenAPI openApi = specGenerator.generateOpenApiSpec(createMockRequest());

            // Verify customizations were applied
            assertEquals("Should apply custom title", "Enterprise Trading API", openApi.getInfo().getTitle());
            assertTrue("Should apply custom description",
                    openApi.getInfo().getDescription().contains("enterprise"));

            if (openApi.getInfo().getContact() != null) {
                assertEquals("Should apply custom contact", "Enterprise API Team",
                        openApi.getInfo().getContact().getName());
            }
        }
    }

    /**
     * Test multiple customizers with priority ordering.
     */
    public void testMultipleCustomizersPriority() throws Exception {
        if (config == null) return;

        // Create high and low priority customizers
        OpenApiCustomizer lowPriorityCustomizer = new OpenApiCustomizer() {
            @Override
            public void customize(OpenAPI openAPI) {
                openAPI.getInfo().setVersion("1.0.0");
            }

            @Override
            public int getPriority() {
                return 10;
            }
        };

        OpenApiCustomizer highPriorityCustomizer = new OpenApiCustomizer() {
            @Override
            public void customize(OpenAPI openAPI) {
                openAPI.getInfo().setVersion("2.0.0-enterprise");
            }

            @Override
            public int getPriority() {
                return 100;
            }
        };

        // Test that higher priority customizer wins
        // Note: In real implementation, this would test multiple customizers
        // For now, test that single customizer works correctly
        config.setCustomizer(highPriorityCustomizer);

        // Recreate spec generator with updated configuration
        specGenerator = new OpenApiSpecGenerator(configurationContext, config);

        OpenAPI openApi = specGenerator.generateOpenApiSpec(createMockRequest());
        assertEquals("Should apply high priority version", "2.0.0-enterprise", openApi.getInfo().getVersion());
    }

    // ========== Enterprise Integration and Monitoring Tests ==========

    /**
     * Test enterprise monitoring and observability integration.
     */
    public void testEnterpriseMonitoringIntegration() throws Exception {
        // Step 1: Verify health check endpoints are documented
        OpenAPI openApi = specGenerator.generateOpenApiSpec(createMockRequest());
        Map<String, PathItem> paths = openApi.getPaths();

        boolean hasMonitoringEndpoints = paths.keySet().stream()
                .anyMatch(path -> path.contains("health") ||
                                path.contains("metrics") ||
                                path.contains("status"));
        // Note: Monitoring endpoints may or may not be present depending on service deployment

        // Step 2: Test performance monitoring of spec generation
        long startTime = System.currentTimeMillis();

        // Generate multiple specs to test performance
        for (int i = 0; i < 5; i++) {
            specGenerator.generateOpenApiSpec(createMockRequest());
        }

        long totalTime = System.currentTimeMillis() - startTime;
        assertTrue("Spec generation should be performant", totalTime < 1000);

        // Step 3: Verify enterprise metadata in OpenAPI spec
        assertTrue("Should have enterprise-grade info",
                openApi.getInfo().getTitle().contains("API") ||
                openApi.getInfo().getDescription().length() > 10);
    }

    /**
     * Test enterprise security headers and CORS configuration.
     */
    public void testEnterpriseSecurityHeaders() throws Exception {
        // Test CORS headers for enterprise integration
        MockHttpServletResponse response = new MockHttpServletResponse();
        uiHandler.handleOpenApiJsonRequest(createMockRequest(), response);

        // Verify enterprise CORS configuration
        assertEquals("Should allow cross-origin requests", "*",
                response.getHeader("Access-Control-Allow-Origin"));
        assertEquals("Should specify allowed methods", "GET, OPTIONS",
                response.getHeader("Access-Control-Allow-Methods"));
        assertEquals("Should specify allowed headers", "Content-Type, Authorization",
                response.getHeader("Access-Control-Allow-Headers"));
    }

    // ========== Performance and Optimization Tests ==========

    /**
     * Test performance optimization features for enterprise scale.
     */
    public void testEnterprisePerformanceOptimization() throws Exception {
        // Step 1: Test large-scale service introspection performance
        long startTime = System.currentTimeMillis();

        ServiceIntrospector introspector = new ServiceIntrospector(configurationContext);
        List<ServiceIntrospector.ServiceMetadata> services = introspector.getRestServices();

        long introspectionTime = System.currentTimeMillis() - startTime;
        assertTrue("Service introspection should be efficient", introspectionTime < 500);

        // Step 2: Test OpenAPI spec generation caching
        startTime = System.currentTimeMillis();

        OpenAPI firstSpec = specGenerator.generateOpenApiSpec(createMockRequest());
        long firstGenTime = System.currentTimeMillis() - startTime;

        startTime = System.currentTimeMillis();
        OpenAPI secondSpec = specGenerator.generateOpenApiSpec(createMockRequest());
        long secondGenTime = System.currentTimeMillis() - startTime;

        // Second generation might be faster due to caching
        assertNotNull("Should generate first spec", firstSpec);
        assertNotNull("Should generate second spec", secondSpec);

        // Step 3: Test memory efficiency with large configurations
        if (config != null) {
            // Add many resource packages to test scalability
            for (int i = 0; i < 100; i++) {
                config.addResourcePackage("com.enterprise.api.service" + i);
            }

            OpenAPI largeConfigSpec = specGenerator.generateOpenApiSpec(createMockRequest());
            assertNotNull("Should handle large configurations", largeConfigSpec);
        }
    }

    /**
     * Test resource filtering and optimization for large enterprise APIs.
     */
    public void testEnterpriseResourceOptimization() throws Exception {
        if (config == null) return;

        // Test resource filtering configuration
        config.setReadAllResources(false);
        config.addResourcePackage("com.enterprise.trading");
        config.addResourceClass("com.enterprise.TradingController");
        config.addIgnoredRoute("/internal/.*");
        config.addIgnoredRoute("/admin/.*");

        OpenAPI filteredSpec = specGenerator.generateOpenApiSpec(createMockRequest());
        assertNotNull("Should generate filtered spec", filteredSpec);

        // Verify that filtering is applied
        String jsonSpec = specGenerator.generateOpenApiJson(createMockRequest());
        assertNotNull("Should generate filtered JSON", jsonSpec);
        assertFalse("Should not be empty", jsonSpec.trim().isEmpty());
    }

    // ========== Error Handling and Resilience Tests ==========

    /**
     * Test error handling in enterprise scenarios.
     */
    public void testEnterpriseErrorHandling() throws Exception {
        // Step 1: Test handling of invalid security configurations
        try {
            SecurityScheme invalidScheme = new SecurityScheme();
            // Don't set type - invalid configuration
            if (config != null) {
                config.addSecurityDefinition("invalid", invalidScheme);
            }

            OpenAPI spec = specGenerator.generateOpenApiSpec(createMockRequest());
            assertNotNull("Should handle invalid configurations gracefully", spec);
        } catch (Exception e) {
            // Should not throw unhandled exceptions
            fail("Should handle invalid security configuration gracefully: " + e.getMessage());
        }

        // Step 2: Test null request handling
        String jsonSpec = specGenerator.generateOpenApiJson(null);
        assertNotNull("Should handle null request", jsonSpec);
        assertTrue("Should generate valid JSON with null request", jsonSpec.startsWith("{"));

        // Step 3: Test SwaggerUI error handling with minimal request
        MockHttpServletResponse errorResponse = new MockHttpServletResponse();
        MockHttpServletRequest minimalRequest = createMockRequest();
        uiHandler.handleSwaggerUIRequest(minimalRequest, errorResponse);

        String html = errorResponse.getContent();
        assertNotNull("Should generate HTML with minimal request", html);
    }

    // ========== Helper Methods ==========

    /**
     * Deploy enterprise services for advanced testing scenarios.
     */
    private void deployEnterpriseServices() throws Exception {
        // Deploy Enterprise Trading Service with Bearer Authentication
        AxisService tradingService = new AxisService("TradingService");
        tradingService.addParameter(new Parameter("enableREST", "true"));
        tradingService.addParameter(new Parameter("security.scheme", "bearerAuth"));

        AxisOperation createTradeOp = new org.apache.axis2.description.InOutAxisOperation();
        createTradeOp.setName(new QName("createTrade"));
        createTradeOp.addParameter(new Parameter("HTTPMethod", "POST"));
        createTradeOp.addParameter(new Parameter("RESTPath", "/api/v2/trades"));
        createTradeOp.addParameter(new Parameter("security.required", "true"));
        tradingService.addOperation(createTradeOp);

        AxisOperation getTradesOp = new org.apache.axis2.description.InOutAxisOperation();
        getTradesOp.setName(new QName("getTrades"));
        getTradesOp.addParameter(new Parameter("HTTPMethod", "GET"));
        getTradesOp.addParameter(new Parameter("RESTPath", "/api/v2/trades"));
        tradingService.addOperation(getTradesOp);

        axisConfiguration.addService(tradingService);

        // Deploy Portfolio Management Service with OAuth2
        AxisService portfolioService = new AxisService("PortfolioService");
        portfolioService.addParameter(new Parameter("enableREST", "true"));
        portfolioService.addParameter(new Parameter("security.scheme", "oauth2"));

        AxisOperation getPortfolioOp = new org.apache.axis2.description.InOutAxisOperation();
        getPortfolioOp.setName(new QName("getPortfolio"));
        getPortfolioOp.addParameter(new Parameter("HTTPMethod", "GET"));
        getPortfolioOp.addParameter(new Parameter("RESTPath", "/api/v2/portfolio/{userId}"));
        portfolioService.addOperation(getPortfolioOp);

        axisConfiguration.addService(portfolioService);

        // Deploy Analytics Service with API Key Authentication
        AxisService analyticsService = new AxisService("AnalyticsService");
        analyticsService.addParameter(new Parameter("enableREST", "true"));
        analyticsService.addParameter(new Parameter("security.scheme", "apiKey"));

        AxisOperation getAnalyticsOp = new org.apache.axis2.description.InOutAxisOperation();
        getAnalyticsOp.setName(new QName("getAnalytics"));
        getAnalyticsOp.addParameter(new Parameter("HTTPMethod", "GET"));
        getAnalyticsOp.addParameter(new Parameter("RESTPath", "/api/v2/analytics/summary"));
        analyticsService.addOperation(getAnalyticsOp);

        axisConfiguration.addService(analyticsService);
    }

    /**
     * Setup advanced OpenAPI configuration for enterprise features.
     */
    private void setupAdvancedConfiguration() throws Exception {
        if (config == null) {
            config = new OpenApiConfiguration();
            configurationContext.setProperty("axis2.openapi.config", config);
        }

        // Configure enterprise metadata
        config.setTitle("Enterprise Trading Platform API");
        config.setDescription("Advanced enterprise-grade trading platform with comprehensive security, monitoring, and integration capabilities");
        config.setVersion("2.1.0-enterprise");
        config.setContactName("Enterprise API Team");
        config.setContactEmail("api-support@enterprise.com");
        config.setContactUrl("https://enterprise.com/api/support");
        config.setLicense("Enterprise License");
        config.setLicenseUrl("https://enterprise.com/licenses/api");

        // Configure advanced security schemes
        SecurityScheme bearerAuth = new SecurityScheme();
        bearerAuth.setType(SecurityScheme.Type.HTTP);
        bearerAuth.setScheme("bearer");
        bearerAuth.setBearerFormat("JWT");
        bearerAuth.setDescription("JWT Bearer token authentication for trading operations");
        config.addSecurityDefinition("bearerAuth", bearerAuth);

        SecurityScheme apiKey = new SecurityScheme();
        apiKey.setType(SecurityScheme.Type.APIKEY);
        apiKey.setName("X-API-Key");
        apiKey.setIn(SecurityScheme.In.HEADER);
        apiKey.setDescription("API Key authentication for analytics access");
        config.addSecurityDefinition("apiKey", apiKey);

        // Configure OAuth2 if available
        SecurityScheme oauth2 = new SecurityScheme();
        oauth2.setType(SecurityScheme.Type.OAUTH2);
        oauth2.setDescription("OAuth2 authorization for portfolio management");
        config.addSecurityDefinition("oauth2", oauth2);

        // Configure resource filtering for performance
        config.setReadAllResources(false);
        config.addResourcePackage("com.enterprise.trading");
        config.addResourcePackage("com.enterprise.portfolio");
        config.addResourcePackage("com.enterprise.analytics");

        // Configure SwaggerUI for enterprise branding
        SwaggerUiConfig uiConfig = config.getSwaggerUiConfig();
        uiConfig.setDeepLinking(true);
        uiConfig.setDocExpansion("list");
        uiConfig.setFilter(true);
        uiConfig.setMaxDisplayedTags(20);
        uiConfig.setShowRequestHeaders(true);
        uiConfig.setShowResponseHeaders(true);
    }

    /**
     * Create a mock HTTP request for testing.
     */
    private MockHttpServletRequest createMockRequest() {
        MockHttpServletRequest request = new MockHttpServletRequest();
        request.setScheme("https");
        request.setServerName("api.enterprise.com");
        request.setServerPort(443);
        request.setContextPath("/trading-api");
        return request;
    }

    // Mock classes for testing (reusing and extending from UserGuideIntegrationTest pattern)
    private static class MockHttpServletRequest implements HttpServletRequest {
        private String scheme = "https";
        private String serverName = "api.enterprise.com";
        private int serverPort = 443;
        private String contextPath = "/trading-api";

        public void setScheme(String scheme) { this.scheme = scheme; }
        public void setServerName(String serverName) { this.serverName = serverName; }
        public void setServerPort(int serverPort) { this.serverPort = serverPort; }
        public void setContextPath(String contextPath) { this.contextPath = contextPath; }

        @Override public String getScheme() { return scheme; }
        @Override public String getServerName() { return serverName; }
        @Override public int getServerPort() { return serverPort; }
        @Override public String getContextPath() { return contextPath; }

        // Minimal implementation - only methods used by tests
        @Override public String getAuthType() { return null; }
        @Override public jakarta.servlet.http.Cookie[] getCookies() { return new jakarta.servlet.http.Cookie[0]; }
        @Override public long getDateHeader(String name) { return 0; }
        @Override public String getHeader(String name) { return null; }
        @Override public java.util.Enumeration<String> getHeaders(String name) { return null; }
        @Override public java.util.Enumeration<String> getHeaderNames() { return null; }
        @Override public int getIntHeader(String name) { return 0; }
        @Override public String getMethod() { return "GET"; }
        @Override public String getPathInfo() { return null; }
        @Override public String getPathTranslated() { return null; }
        @Override public String getQueryString() { return null; }
        @Override public String getRemoteUser() { return null; }
        @Override public boolean isUserInRole(String role) { return false; }
        @Override public java.security.Principal getUserPrincipal() { return null; }
        @Override public String getRequestedSessionId() { return null; }
        @Override public String getRequestURI() { return ""; }
        @Override public StringBuffer getRequestURL() { return new StringBuffer(); }
        @Override public String getServletPath() { return ""; }
        @Override public jakarta.servlet.http.HttpSession getSession(boolean create) { return null; }
        @Override public jakarta.servlet.http.HttpSession getSession() { return null; }
        @Override public String changeSessionId() { return null; }
        @Override public boolean isRequestedSessionIdValid() { return false; }
        @Override public boolean isRequestedSessionIdFromCookie() { return false; }
        @Override public boolean isRequestedSessionIdFromURL() { return false; }
        @Override public boolean authenticate(HttpServletResponse response) { return false; }
        @Override public void login(String username, String password) { }
        @Override public void logout() { }
        @Override public java.util.Collection<jakarta.servlet.http.Part> getParts() { return null; }
        @Override public jakarta.servlet.http.Part getPart(String name) { return null; }
        @Override public <T extends jakarta.servlet.http.HttpUpgradeHandler> T upgrade(Class<T> httpUpgradeHandlerClass) { return null; }
        @Override public Object getAttribute(String name) { return null; }
        @Override public java.util.Enumeration<String> getAttributeNames() { return null; }
        @Override public String getCharacterEncoding() { return null; }
        @Override public void setCharacterEncoding(String env) { }
        @Override public int getContentLength() { return 0; }
        @Override public long getContentLengthLong() { return 0; }
        @Override public String getContentType() { return null; }
        @Override public jakarta.servlet.ServletInputStream getInputStream() { return null; }
        @Override public String getParameter(String name) { return null; }
        @Override public java.util.Enumeration<String> getParameterNames() { return null; }
        @Override public String[] getParameterValues(String name) { return new String[0]; }
        @Override public java.util.Map<String, String[]> getParameterMap() { return null; }
        @Override public String getProtocol() { return "HTTP/1.1"; }
        @Override public String getRemoteAddr() { return "127.0.0.1"; }
        @Override public String getRemoteHost() { return "localhost"; }
        @Override public void setAttribute(String name, Object o) { }
        @Override public void removeAttribute(String name) { }
        @Override public java.util.Locale getLocale() { return null; }
        @Override public java.util.Enumeration<java.util.Locale> getLocales() { return null; }
        @Override public boolean isSecure() { return true; }
        @Override public jakarta.servlet.RequestDispatcher getRequestDispatcher(String path) { return null; }
        @Override public int getRemotePort() { return 0; }
        @Override public String getLocalName() { return "localhost"; }
        @Override public String getLocalAddr() { return "127.0.0.1"; }
        @Override public int getLocalPort() { return serverPort; }
        @Override public jakarta.servlet.ServletContext getServletContext() { return null; }
        @Override public jakarta.servlet.AsyncContext startAsync() { return null; }
        @Override public jakarta.servlet.AsyncContext startAsync(jakarta.servlet.ServletRequest servletRequest, jakarta.servlet.ServletResponse servletResponse) { return null; }
        @Override public boolean isAsyncStarted() { return false; }
        @Override public boolean isAsyncSupported() { return false; }
        @Override public jakarta.servlet.AsyncContext getAsyncContext() { return null; }
        @Override public jakarta.servlet.DispatcherType getDispatcherType() { return null; }
        @Override public java.io.BufferedReader getReader() { return null; }
        @Override public jakarta.servlet.ServletConnection getServletConnection() { return null; }
        @Override public String getProtocolRequestId() { return null; }
        @Override public String getRequestId() { return null; }
    }

    private static class MockHttpServletResponse implements HttpServletResponse {
        private String contentType;
        private int status;
        private StringWriter writer = new StringWriter();
        private PrintWriter printWriter = new PrintWriter(writer);
        private Map<String, String> headers = new java.util.HashMap<>();

        public String getContentType() { return contentType; }
        public int getStatus() { return status; }
        public String getContent() { return writer.toString(); }

        @Override public void setContentType(String type) { this.contentType = type; }
        @Override public void setStatus(int sc) { this.status = sc; }
        @Override public PrintWriter getWriter() { return printWriter; }
        @Override public void setHeader(String name, String value) { headers.put(name, value); }
        @Override public String getHeader(String name) { return headers.get(name); }

        // Minimal implementation
        @Override public void addCookie(jakarta.servlet.http.Cookie cookie) { }
        @Override public boolean containsHeader(String name) { return headers.containsKey(name); }
        @Override public String encodeURL(String url) { return url; }
        @Override public String encodeRedirectURL(String url) { return url; }
        @Override public void sendError(int sc, String msg) { this.status = sc; }
        @Override public void sendError(int sc) { this.status = sc; }
        @Override public void sendRedirect(String location) { }
        @Override public void setDateHeader(String name, long date) { }
        @Override public void addDateHeader(String name, long date) { }
        @Override public void addHeader(String name, String value) { headers.put(name, value); }
        @Override public void setIntHeader(String name, int value) { }
        @Override public void addIntHeader(String name, int value) { }
        @Override public String getCharacterEncoding() { return "UTF-8"; }
        @Override public jakarta.servlet.ServletOutputStream getOutputStream() { return null; }
        @Override public void setCharacterEncoding(String charset) { }
        @Override public void setContentLength(int len) { }
        @Override public void setContentLengthLong(long len) { }
        @Override public void setBufferSize(int size) { }
        @Override public int getBufferSize() { return 0; }
        @Override public void flushBuffer() { }
        @Override public void resetBuffer() { }
        @Override public boolean isCommitted() { return false; }
        @Override public void reset() { }
        @Override public void setLocale(java.util.Locale loc) { }
        @Override public java.util.Locale getLocale() { return null; }
        @Override public java.util.Collection<String> getHeaders(String name) { return null; }
        @Override public java.util.Collection<String> getHeaderNames() { return headers.keySet(); }
        @Override public void sendRedirect(String location, int sc, boolean clearBuffer) { }
    }
}