import java.io.*;
import java.net.*;

class HttpRequest {
    private String request;

    public HttpRequest(InputStream inputStream) throws IOException {
        StringBuilder requestBuilder = new StringBuilder();
        int byteRead = inputStream.read();
        while (byteRead != '\n') {
            requestBuilder.append((char) byteRead);
        }
        request = requestBuilder.toString();
    }

    // Getter method
    public String getRequest() {
        return request;
    }

    // Method to parse request parameters
    public String[] getRequestParams() {
        String[] requestLines = request.split("\\r?\\n");
        return requestLines[0].split("[?\\s]");
    }
}

import java.io.*;
import java.net.*;

class HttpRequest {
    private String request;

    public HttpRequest(InputStream inputStream) throws IOException {
        StringBuilder requestBuilder = new StringBuilder();
        int byteRead = inputStream.read();
        while (byteRead != '\n') {
            requestBuilder.append((char) byteRead);
        }
        request = requestBuilder.toString();
    }

    // Getter method
    public String getRequest() {
        return request;
    }

    // Method to parse request parameters
    public String[] getRequestParams() {
        String[] requestLines = request.split("\\r?\\n");
        return requestLines[0].split("[?\\s]");
    }
}

import java.io.*;
import java.net.*;

// Class to handle HTTP responses
class HttpResponse {
    private String response;

    // Constructor
    public HttpResponse(String response) {
        this.response = response;
    }

    // Method to send response to client
    public void send(DataOutputStream out) throws IOException {
        out.writeBytes(response);
    }
}

import java.io.*;
import java.net.*;

// Class to handle HTTP responses
class HttpResponse {
    private String response;

    // Constructor
    public HttpResponse(String response) {
        this.response = response;
    }

    // Method to send response to client
    public void send(DataOutputStream out) throws IOException {
        out.writeBytes(response);
    }
}

public void simulateSaleProcess() {

    cont.initializeNewSale();
    getProductById(firstProductId);
    getProductById(secondProductId);
    getProductById(firstProductId);
    cont.finalizeSaleAndUpdateSystems();
    sendProductInfoToDisplay();
    // Call the createSaleAndApplyDiscount method here
    createSaleAndApplyDiscount();
    cont.processPaymentAndReturnChange(Payment.FIRST_PAYMENT);

    cont.initializeNewSale();
    getProductById(firstProductId);
    getProductById(firstProductId);
    getProductById(121);
    cont.finalizeSaleAndUpdateSystems();
    sendProductInfoToDisplay();
    // Call the createSaleAndApplyDiscount method here
    createSaleAndApplyDiscount();
    cont.processPaymentAndReturnChange(Payment.SECOND_PAYMENT);
}

// Move the createSaleAndApplyDiscount method from the Controller class to the View class
private void createSaleAndApplyDiscount() {
    // Set the discounter field to a new instance of QuantityDiscounter with a parameter of 3
    Discounter discounter = new QuantityDiscounter(3);
    cont.setDiscounter(discounter);
    // Call the applyDiscount method on the sale object and print the discounted price
    BigDecimal amount = cont.getSaleDTO().getPaymentDTO().getTotalAmount();
    BigDecimal discountedPrice = cont.applyDiscount(amount);
    System.out.println("The discounted price is: " + discountedPrice);
}

public void simulateSaleProcess() {

    cont.initializeNewSale();
    getProductById(firstProductId);
    getProductById(secondProductId);
    getProductById(firstProductId);
    cont.finalizeSaleAndUpdateSystems();
    sendProductInfoToDisplay();
    // Call the createSaleAndApplyDiscount method here
    createSaleAndApplyDiscount();
    cont.processPaymentAndReturnChange(Payment.FIRST_PAYMENT);

    cont.initializeNewSale();
    getProductById(firstProductId);
    getProductById(firstProductId);
    getProductById(121);
    cont.finalizeSaleAndUpdateSystems();
    sendProductInfoToDisplay();
    // Call the createSaleAndApplyDiscount method here
    createSaleAndApplyDiscount();
    cont.processPaymentAndReturnChange(Payment.SECOND_PAYMENT);
}

// Move the createSaleAndApplyDiscount method from the Controller class to the View class
private void createSaleAndApplyDiscount() {
    // Set the discounter field to a new instance of QuantityDiscounter with a parameter of 3
    Discounter discounter = new QuantityDiscounter(3);
    cont.setDiscounter(discounter);
    // Call the applyDiscount method on the sale object and print the discounted price
    BigDecimal amount = cont.getSaleDTO().getPaymentDTO().getTotalAmount();
    BigDecimal discountedPrice = cont.applyDiscount(amount);
    System.out.println("The discounted price is: " + discountedPrice);
}

// A method that uses the strategy object to apply the discount and handles any exceptions that may occur
public BigDecimal applyDiscount(BigDecimal amount) {
    try {
        // Use the discounter object to apply the discount
        // Convert the double value to a BigDecimal value
        // For example, you can use the BigDecimal.valueOf method
        BigDecimal payAmount = BigDecimal.valueOf(payment.getPayAmount());
        return discounter.applyDiscount(payAmount);
    } catch (DatabaseFailureException e) {
        // Handle the exception here
        // For example, you can print or log an error message for developers and users
        System.out.println("Developer log: " + e.getMessage());
        System.out.println("User message: There was an error when fetching discounts from database.");
        // You can also return a default value or do something else
        // For example, you can return the original amount without any discount
        return amount;
    }
}

// A method that uses the strategy object to apply the discount and handles any exceptions that may occur
public BigDecimal applyDiscount(BigDecimal amount) {
    try {
        // Use the discounter object to apply the discount
        // Convert the double value to a BigDecimal value
        // For example, you can use the BigDecimal.valueOf method
        BigDecimal payAmount = BigDecimal.valueOf(payment.getPayAmount());
        return discounter.applyDiscount(payAmount);
    } catch (DatabaseFailureException e) {
        // Handle the exception here
        // For example, you can print or log an error message for developers and users
        System.out.println("Developer log: " + e.getMessage());
        System.out.println("User message: There was an error when fetching discounts from database.");
        // You can also return a default value or do something else
        // For example, you can return the original amount without any discount
        return amount;
    }
}