/*
 * 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 junit.framework.TestCase;
import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

/**
 * Test class for advanced model classes and patterns used in the Advanced User Guide.
 * Tests enterprise-grade data models including:
 * - Trading models with validation
 * - Portfolio management models
 * - Analytics and reporting models
 * - Security and authentication models
 * - Error handling and response models
 */
public class AdvancedModelTest extends TestCase {

    // ========== Trading Model Tests ==========

    /**
     * Test TradeRequest model for enterprise trading scenarios.
     */
    public void testTradeRequestModel() throws Exception {
        TradeRequest request = new TradeRequest();
        request.setSymbol("AAPL");
        request.setQuantity(100);
        request.setPrice(new BigDecimal("150.25"));
        request.setOrderType("MARKET");
        request.setTimeInForce("DAY");

        // Validate required fields
        assertTrue("Symbol should be required", request.getSymbol() != null && !request.getSymbol().trim().isEmpty());
        assertTrue("Quantity should be positive", request.getQuantity() > 0);
        assertTrue("Price should be positive", request.getPrice().compareTo(BigDecimal.ZERO) > 0);
        assertNotNull("Order type should be specified", request.getOrderType());

        // Test validation patterns
        assertTrue("Symbol should follow standard format", request.getSymbol().matches("[A-Z]{1,5}"));
        assertTrue("Order type should be valid",
            request.getOrderType().equals("MARKET") ||
            request.getOrderType().equals("LIMIT") ||
            request.getOrderType().equals("STOP"));
    }

    /**
     * Test TradeResponse model for comprehensive trade confirmations.
     */
    public void testTradeResponseModel() throws Exception {
        TradeResponse response = new TradeResponse();
        response.setTradeId("TRD-2024-001234");
        response.setStatus("FILLED");
        response.setFilledQuantity(100);
        response.setFilledPrice(new BigDecimal("150.30"));
        response.setCommission(new BigDecimal("9.99"));
        response.setTimestamp(LocalDateTime.now().format(DateTimeFormatter.ISO_LOCAL_DATE_TIME));

        // Validate response structure
        assertNotNull("Trade ID should be generated", response.getTradeId());
        assertTrue("Trade ID should follow pattern", response.getTradeId().startsWith("TRD-"));
        assertTrue("Status should be valid trade status",
            response.getStatus().equals("FILLED") ||
            response.getStatus().equals("PARTIAL") ||
            response.getStatus().equals("PENDING") ||
            response.getStatus().equals("REJECTED"));

        // Validate numerical fields
        assertTrue("Filled quantity should be non-negative", response.getFilledQuantity() >= 0);
        assertTrue("Filled price should be positive", response.getFilledPrice().compareTo(BigDecimal.ZERO) >= 0);
        assertTrue("Commission should be non-negative", response.getCommission().compareTo(BigDecimal.ZERO) >= 0);

        // Validate timestamp format
        assertNotNull("Timestamp should be provided", response.getTimestamp());
        assertTrue("Timestamp should be ISO format", response.getTimestamp().contains("T"));
    }

    // ========== Portfolio Model Tests ==========

    /**
     * Test PortfolioSummary model for comprehensive portfolio tracking.
     */
    public void testPortfolioSummaryModel() throws Exception {
        PortfolioSummary summary = new PortfolioSummary();
        summary.setUserId("USER-12345");
        summary.setTotalValue(new BigDecimal("250000.00"));
        summary.setTotalGainLoss(new BigDecimal("15000.00"));
        summary.setTotalGainLossPercent(new BigDecimal("6.38"));
        summary.setCashBalance(new BigDecimal("50000.00"));
        summary.setPositionCount(25);

        // Validate portfolio structure
        assertNotNull("User ID should be specified", summary.getUserId());
        assertTrue("User ID should follow pattern", summary.getUserId().startsWith("USER-"));
        assertTrue("Total value should be positive", summary.getTotalValue().compareTo(BigDecimal.ZERO) > 0);
        assertTrue("Position count should be non-negative", summary.getPositionCount() >= 0);
        assertTrue("Cash balance should be non-negative", summary.getCashBalance().compareTo(BigDecimal.ZERO) >= 0);

        // Validate calculated fields
        assertTrue("Gain/loss percentage should be reasonable",
            summary.getTotalGainLossPercent().abs().compareTo(new BigDecimal("100")) <= 0);
    }

    /**
     * Test Position model for individual holdings.
     */
    public void testPositionModel() throws Exception {
        Position position = new Position();
        position.setSymbol("MSFT");
        position.setQuantity(200);
        position.setAveragePrice(new BigDecimal("295.50"));
        position.setCurrentPrice(new BigDecimal("310.75"));
        position.setMarketValue(new BigDecimal("62150.00"));
        position.setUnrealizedGainLoss(new BigDecimal("3050.00"));

        // Validate position data
        assertNotNull("Symbol should be specified", position.getSymbol());
        assertTrue("Quantity should be positive", position.getQuantity() > 0);
        assertTrue("Average price should be positive", position.getAveragePrice().compareTo(BigDecimal.ZERO) > 0);
        assertTrue("Current price should be positive", position.getCurrentPrice().compareTo(BigDecimal.ZERO) > 0);

        // Validate calculated values
        BigDecimal calculatedMarketValue = position.getCurrentPrice().multiply(new BigDecimal(position.getQuantity()));
        assertEquals("Market value should equal current price * quantity",
            calculatedMarketValue.setScale(2, BigDecimal.ROUND_HALF_UP),
            position.getMarketValue().setScale(2, BigDecimal.ROUND_HALF_UP));
    }

    // ========== Analytics Model Tests ==========

    /**
     * Test AnalyticsReport model for comprehensive market analytics.
     */
    public void testAnalyticsReportModel() throws Exception {
        AnalyticsReport report = new AnalyticsReport();
        report.setReportId("RPT-Analytics-2024-Q1");
        report.setReportType("QUARTERLY_PERFORMANCE");
        report.setPeriodStart("2024-01-01");
        report.setPeriodEnd("2024-03-31");
        report.setTotalReturn(new BigDecimal("8.5"));
        report.setVolatility(new BigDecimal("12.3"));
        report.setSharpeRatio(new BigDecimal("1.25"));

        // Validate report structure
        assertNotNull("Report ID should be generated", report.getReportId());
        assertTrue("Report ID should follow pattern", report.getReportId().contains("RPT-"));
        assertNotNull("Report type should be specified", report.getReportType());

        // Validate date periods
        assertNotNull("Period start should be specified", report.getPeriodStart());
        assertNotNull("Period end should be specified", report.getPeriodEnd());
        assertTrue("Period start should be before end",
            report.getPeriodStart().compareTo(report.getPeriodEnd()) < 0);

        // Validate analytics metrics
        assertTrue("Volatility should be non-negative", report.getVolatility().compareTo(BigDecimal.ZERO) >= 0);
        assertTrue("Sharpe ratio should be reasonable", report.getSharpeRatio().abs().compareTo(new BigDecimal("5")) <= 0);
    }

    // ========== Security Model Tests ==========

    /**
     * Test JWT authentication model for Bearer token scenarios.
     */
    public void testJwtAuthenticationModel() throws Exception {
        JwtAuthentication auth = new JwtAuthentication();
        auth.setToken("eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiJ1c2VyMTIzIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNjA5NDU5MjAwfQ.signature");
        auth.setTokenType("Bearer");
        auth.setExpiresIn(3600);
        auth.setScope("read:trading write:trading read:portfolio");

        // Validate JWT structure
        assertNotNull("Token should be provided", auth.getToken());
        assertTrue("Token should be JWT format", auth.getToken().split("\\.").length == 3);
        assertEquals("Token type should be Bearer", "Bearer", auth.getTokenType());
        assertTrue("Expiry should be positive", auth.getExpiresIn() > 0);

        // Validate scope format
        assertNotNull("Scope should be specified", auth.getScope());
        assertTrue("Scope should contain trading permissions", auth.getScope().contains("trading"));
    }

    /**
     * Test OAuth2 authorization model.
     */
    public void testOAuth2AuthorizationModel() throws Exception {
        OAuth2Authorization oauth2 = new OAuth2Authorization();
        oauth2.setAuthorizationCode("AUTH-12345-ABCDE");
        oauth2.setClientId("trading-app");
        oauth2.setRedirectUri("https://trading.enterprise.com/callback");
        oauth2.setScope("read:trading write:trading read:portfolio");
        oauth2.setState("random-state-string");

        // Validate OAuth2 parameters
        assertNotNull("Authorization code should be provided", oauth2.getAuthorizationCode());
        assertNotNull("Client ID should be provided", oauth2.getClientId());
        assertNotNull("Redirect URI should be provided", oauth2.getRedirectUri());
        assertTrue("Redirect URI should be HTTPS", oauth2.getRedirectUri().startsWith("https://"));
        assertNotNull("State should be provided for CSRF protection", oauth2.getState());
    }

    // ========== Error Model Tests ==========

    /**
     * Test enterprise error response model.
     */
    public void testEnterpriseErrorResponseModel() throws Exception {
        EnterpriseErrorResponse error = new EnterpriseErrorResponse();
        error.setErrorCode("TRADE_001");
        error.setErrorMessage("Insufficient funds for trade execution");
        error.setErrorType("BUSINESS_RULE_VIOLATION");
        error.setTimestamp(LocalDateTime.now().format(DateTimeFormatter.ISO_LOCAL_DATE_TIME));
        error.setTraceId("TRACE-12345-ABCDE");
        error.setDetails("Account balance: $1000, Required: $15000");

        // Validate error structure
        assertNotNull("Error code should be provided", error.getErrorCode());
        assertTrue("Error code should follow pattern", error.getErrorCode().matches("[A-Z_]+_\\d{3}"));
        assertNotNull("Error message should be descriptive", error.getErrorMessage());
        assertTrue("Error message should be meaningful", error.getErrorMessage().length() > 10);

        // Validate enterprise fields
        assertNotNull("Error type should be categorized", error.getErrorType());
        assertNotNull("Timestamp should be provided", error.getTimestamp());
        assertNotNull("Trace ID should be provided for debugging", error.getTraceId());
        assertTrue("Trace ID should follow pattern", error.getTraceId().startsWith("TRACE-"));
    }

    // ========== Validation Helper Tests ==========

    /**
     * Test input validation utilities for enterprise models.
     */
    public void testInputValidationUtilities() throws Exception {
        // Test symbol validation
        assertTrue("Valid symbol should pass", isValidSymbol("AAPL"));
        assertTrue("Valid symbol should pass", isValidSymbol("MSFT"));
        assertFalse("Invalid symbol should fail", isValidSymbol(""));
        assertFalse("Invalid symbol should fail", isValidSymbol("TOOLONG"));
        assertFalse("Invalid symbol should fail", isValidSymbol("123"));

        // Test price validation
        assertTrue("Valid price should pass", isValidPrice(new BigDecimal("100.50")));
        assertTrue("Valid price should pass", isValidPrice(new BigDecimal("0.01")));
        assertFalse("Negative price should fail", isValidPrice(new BigDecimal("-10.00")));
        assertFalse("Zero price should fail", isValidPrice(BigDecimal.ZERO));

        // Test quantity validation
        assertTrue("Valid quantity should pass", isValidQuantity(100));
        assertTrue("Valid quantity should pass", isValidQuantity(1));
        assertFalse("Zero quantity should fail", isValidQuantity(0));
        assertFalse("Negative quantity should fail", isValidQuantity(-50));
    }

    // ========== Inner Model Classes (Test Implementations) ==========

    public static class TradeRequest {
        private String symbol;
        private int quantity;
        private BigDecimal price;
        private String orderType;
        private String timeInForce;

        // Getters and setters
        public String getSymbol() { return symbol; }
        public void setSymbol(String symbol) { this.symbol = symbol; }
        public int getQuantity() { return quantity; }
        public void setQuantity(int quantity) { this.quantity = quantity; }
        public BigDecimal getPrice() { return price; }
        public void setPrice(BigDecimal price) { this.price = price; }
        public String getOrderType() { return orderType; }
        public void setOrderType(String orderType) { this.orderType = orderType; }
        public String getTimeInForce() { return timeInForce; }
        public void setTimeInForce(String timeInForce) { this.timeInForce = timeInForce; }
    }

    public static class TradeResponse {
        private String tradeId;
        private String status;
        private int filledQuantity;
        private BigDecimal filledPrice;
        private BigDecimal commission;
        private String timestamp;

        // Getters and setters
        public String getTradeId() { return tradeId; }
        public void setTradeId(String tradeId) { this.tradeId = tradeId; }
        public String getStatus() { return status; }
        public void setStatus(String status) { this.status = status; }
        public int getFilledQuantity() { return filledQuantity; }
        public void setFilledQuantity(int filledQuantity) { this.filledQuantity = filledQuantity; }
        public BigDecimal getFilledPrice() { return filledPrice; }
        public void setFilledPrice(BigDecimal filledPrice) { this.filledPrice = filledPrice; }
        public BigDecimal getCommission() { return commission; }
        public void setCommission(BigDecimal commission) { this.commission = commission; }
        public String getTimestamp() { return timestamp; }
        public void setTimestamp(String timestamp) { this.timestamp = timestamp; }
    }

    public static class PortfolioSummary {
        private String userId;
        private BigDecimal totalValue;
        private BigDecimal totalGainLoss;
        private BigDecimal totalGainLossPercent;
        private BigDecimal cashBalance;
        private int positionCount;

        // Getters and setters
        public String getUserId() { return userId; }
        public void setUserId(String userId) { this.userId = userId; }
        public BigDecimal getTotalValue() { return totalValue; }
        public void setTotalValue(BigDecimal totalValue) { this.totalValue = totalValue; }
        public BigDecimal getTotalGainLoss() { return totalGainLoss; }
        public void setTotalGainLoss(BigDecimal totalGainLoss) { this.totalGainLoss = totalGainLoss; }
        public BigDecimal getTotalGainLossPercent() { return totalGainLossPercent; }
        public void setTotalGainLossPercent(BigDecimal totalGainLossPercent) { this.totalGainLossPercent = totalGainLossPercent; }
        public BigDecimal getCashBalance() { return cashBalance; }
        public void setCashBalance(BigDecimal cashBalance) { this.cashBalance = cashBalance; }
        public int getPositionCount() { return positionCount; }
        public void setPositionCount(int positionCount) { this.positionCount = positionCount; }
    }

    public static class Position {
        private String symbol;
        private int quantity;
        private BigDecimal averagePrice;
        private BigDecimal currentPrice;
        private BigDecimal marketValue;
        private BigDecimal unrealizedGainLoss;

        // Getters and setters
        public String getSymbol() { return symbol; }
        public void setSymbol(String symbol) { this.symbol = symbol; }
        public int getQuantity() { return quantity; }
        public void setQuantity(int quantity) { this.quantity = quantity; }
        public BigDecimal getAveragePrice() { return averagePrice; }
        public void setAveragePrice(BigDecimal averagePrice) { this.averagePrice = averagePrice; }
        public BigDecimal getCurrentPrice() { return currentPrice; }
        public void setCurrentPrice(BigDecimal currentPrice) { this.currentPrice = currentPrice; }
        public BigDecimal getMarketValue() { return marketValue; }
        public void setMarketValue(BigDecimal marketValue) { this.marketValue = marketValue; }
        public BigDecimal getUnrealizedGainLoss() { return unrealizedGainLoss; }
        public void setUnrealizedGainLoss(BigDecimal unrealizedGainLoss) { this.unrealizedGainLoss = unrealizedGainLoss; }
    }

    public static class AnalyticsReport {
        private String reportId;
        private String reportType;
        private String periodStart;
        private String periodEnd;
        private BigDecimal totalReturn;
        private BigDecimal volatility;
        private BigDecimal sharpeRatio;

        // Getters and setters
        public String getReportId() { return reportId; }
        public void setReportId(String reportId) { this.reportId = reportId; }
        public String getReportType() { return reportType; }
        public void setReportType(String reportType) { this.reportType = reportType; }
        public String getPeriodStart() { return periodStart; }
        public void setPeriodStart(String periodStart) { this.periodStart = periodStart; }
        public String getPeriodEnd() { return periodEnd; }
        public void setPeriodEnd(String periodEnd) { this.periodEnd = periodEnd; }
        public BigDecimal getTotalReturn() { return totalReturn; }
        public void setTotalReturn(BigDecimal totalReturn) { this.totalReturn = totalReturn; }
        public BigDecimal getVolatility() { return volatility; }
        public void setVolatility(BigDecimal volatility) { this.volatility = volatility; }
        public BigDecimal getSharpeRatio() { return sharpeRatio; }
        public void setSharpeRatio(BigDecimal sharpeRatio) { this.sharpeRatio = sharpeRatio; }
    }

    public static class JwtAuthentication {
        private String token;
        private String tokenType;
        private int expiresIn;
        private String scope;

        // Getters and setters
        public String getToken() { return token; }
        public void setToken(String token) { this.token = token; }
        public String getTokenType() { return tokenType; }
        public void setTokenType(String tokenType) { this.tokenType = tokenType; }
        public int getExpiresIn() { return expiresIn; }
        public void setExpiresIn(int expiresIn) { this.expiresIn = expiresIn; }
        public String getScope() { return scope; }
        public void setScope(String scope) { this.scope = scope; }
    }

    public static class OAuth2Authorization {
        private String authorizationCode;
        private String clientId;
        private String redirectUri;
        private String scope;
        private String state;

        // Getters and setters
        public String getAuthorizationCode() { return authorizationCode; }
        public void setAuthorizationCode(String authorizationCode) { this.authorizationCode = authorizationCode; }
        public String getClientId() { return clientId; }
        public void setClientId(String clientId) { this.clientId = clientId; }
        public String getRedirectUri() { return redirectUri; }
        public void setRedirectUri(String redirectUri) { this.redirectUri = redirectUri; }
        public String getScope() { return scope; }
        public void setScope(String scope) { this.scope = scope; }
        public String getState() { return state; }
        public void setState(String state) { this.state = state; }
    }

    public static class EnterpriseErrorResponse {
        private String errorCode;
        private String errorMessage;
        private String errorType;
        private String timestamp;
        private String traceId;
        private String details;

        // Getters and setters
        public String getErrorCode() { return errorCode; }
        public void setErrorCode(String errorCode) { this.errorCode = errorCode; }
        public String getErrorMessage() { return errorMessage; }
        public void setErrorMessage(String errorMessage) { this.errorMessage = errorMessage; }
        public String getErrorType() { return errorType; }
        public void setErrorType(String errorType) { this.errorType = errorType; }
        public String getTimestamp() { return timestamp; }
        public void setTimestamp(String timestamp) { this.timestamp = timestamp; }
        public String getTraceId() { return traceId; }
        public void setTraceId(String traceId) { this.traceId = traceId; }
        public String getDetails() { return details; }
        public void setDetails(String details) { this.details = details; }
    }

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

    private boolean isValidSymbol(String symbol) {
        return symbol != null && symbol.matches("[A-Z]{1,5}");
    }

    private boolean isValidPrice(BigDecimal price) {
        return price != null && price.compareTo(BigDecimal.ZERO) > 0;
    }

    private boolean isValidQuantity(int quantity) {
        return quantity > 0;
    }
}