/*
 * RedmondMsgInBasic.java
 *
 * Created on January 6, 2005, 9:42 AM
 * Copy of version Created on August 14, 2002, 12:56 PM
 * Copy of version created on April 17, 2002, 10:33 PM
 * (just put inside I/O package now)

 */

package IO;

import javax.swing.*;

/**
 *
 * @author Mike
 */
public class RedmondMsgInBasic {
    
    /** Creates a new instance of RedmondMsgInBasic */
    public RedmondMsgInBasic() {
    }
    
    /**
     * Use msg boxes to ask user for a valid integer
     * Continues asking until a valid integer is entered
     * Does not handle totally bad input (e.g. entering a letter or a decimal number)
     *
     * Given:
     *        message to display to the user
     *        lowest valid response
     *        highest valid response
     * Returns:
     *        the valid integer entered
     */
    public static int readValidInt(String message, int min, int max) {   
        // fix bad request
        if (min > max) {
            // swap them
            int temp = min;
            min = max;
            max = temp;
        }
        String answerString;
        // ask for input and get output
        answerString = JOptionPane.showInputDialog(message);
        // copy to output pane for checking history
        System.out.println(message);
        int answer;
        // convert output to integer
        //    this will bomb if user enters a char or a double - watch out
        answer = Integer.parseInt(answerString);
        // echo users answer to output pane for checking history
        System.out.println(answer);
        // ensure valid input - don't let go on without valid entry
        while ((answer < min) || (answer > max)) {
            // ask for input and get output
            answerString = JOptionPane.showInputDialog(message + " (between "
                + min + " and " + max + ")"); 
            // copy to output pane for checking history
            System.out.println(message+ " (between "
                + min + " and " + max + ")"); 
            // convert output to integer
            //    this will bomb if user enters a char or a double - watch out
            answer = Integer.parseInt(answerString);
            // echo users answer to output pane for checking history
            System.out.println(answer);
        }
        // if we get here - we have a valid input - return it
        return answer;
    }
    
    
    
    /**
     * Use msg boxes to ask user for a valid integer
     * Continues asking until a valid integer is entered
     * Does not handle totally bad input (e.g. entering a letter or a decimal number)
     *
     * Made available as an easier name than readValidInt
     *
     * Given:
     *        message to display to the user
     *        lowest valid response
     *        highest valid response
     * Returns:
     *        the valid integer entered
     */
    public static int readValid(String message, int min, int max) {   
        int answer;
        answer = RedmondMsgInBasic.readValidInt(message, min, max);
        return answer;
    }
    
    
    
    /**
     * Use msg boxes to ask user for a valid double
     * Continues asking until a valid double is entered
     * Does not handle totally bad input (e.g. entering a letter or nothing)
     *
     * Made available as a different name than readValid
     *
     * Given:
     *        message to display to the user
     *        lowest valid response
     *        highest valid response
     * Returns:
     *        the valid double entered
     */
    public static double readValidDouble(String message, double min, double max) {   
        double answer;
        answer = RedmondMsgInBasic.readValid(message, min, max);
        return answer;
    }
    
    /**
     * Use msg boxes to ask user for a valid double
     * Continues asking until a valid double is entered
     * Does not handle totally bad input (e.g. entering a letter)
     *
     * Given:
     *        message to display to the user
     *        lowest valid response
     *        highest valid response
     * Returns:
     *        the valid integer entered
     */
    public static double readValid(String message, double min, double max) {     
        // fix bad request
        if (min > max) {
            // swap them
            double temp = min;
            min = max;
            max = temp;
        }    
        String answerString;
        // ask for input and get output
        answerString = JOptionPane.showInputDialog(message);
        // copy to output pane for checking history
        System.out.println(message);
        double answer;
        // convert output to double
        //    this will bomb if user enters a char - watch out
        answer = Double.parseDouble(answerString);
        // echo users answer to output pane for checking history
        System.out.println(answer);
        // ensure valid input - don't let go on without valid entry
        while ((answer < min) || (answer > max)) {
            // ask for input and get output
            answerString = JOptionPane.showInputDialog(message + " (between "
                + min + " and " + max + ")"); 
            // copy to output pane for checking history
            System.out.println(message+ " (between "
                + min + " and " + max + ")"); 
            // convert output to double
            //    this will bomb if user enters a char - watch out
            answer = Double.parseDouble(answerString);
            // echo users answer to output pane for checking history
            System.out.println(answer);
        }
        // if we get here - we have a valid input - return it
        return answer;
    }
    
    
    
    /**
     * Use msg boxes to ask user for a valid Yes or No answer
     * Continues asking until a valid answer is entered
     * Accepts 'y', 'Y', 'n', 'N', "yes", "no" etc
     *
     * Given:
     *        message to display to the user
     * Returns:
     *        the valid answer entered */
    public static char readValidYN(String message) {      
        String answerString;
        // ask for input and get output
        answerString = JOptionPane.showInputDialog(message);
        // copy to output pane for checking history
        System.out.println(message);
        char answer;
        // take only the first char
        //    this will not work well if user enters leading space(s)
        answer = answerString.charAt(0);
        // echo users answer to output pane for checking history
        System.out.println(answer);
        // ensure valid input - don't let go on without valid entry
        while ((answer != 'n') && (answer != 'N') 
                && (answer != 'y') && (answer != 'Y')) {
            // ask for input and get output
            answerString = JOptionPane.showInputDialog(message + " (must be y or n) "); 
            // copy to output pane for checking history
            System.out.println(message + " (must be y or n) "); 
            // take only the first char
            //    this will not work well if user enters leading space(s)
            answer = answerString.charAt(0);
            // echo users answer to output pane for checking history
            System.out.println(answer);
        }
        // if we get here - we have a valid input - return it
        // always return upper case so more predictable for caller
        answer = Character.toUpperCase(answer);
        return answer;
    }
    
    
    /**
     * Use msg boxes to ask user for a valid string answer
     * Strings are not validated here - accepts any string
     *
     * Given:
     *        message to display to the user
     * Returns:
     *        the answer entered */
    public static String readString(String message) {      
        String answerString;
        // ask for input and get output
        answerString = JOptionPane.showInputDialog(message);
        // copy to output pane for checking history
        System.out.println(message);
        // echo users answer to output pane for checking history
        System.out.println(answerString);
        if (answerString == null) {
            return "";
        }
        else {
            // trim extra white space
            answerString = answerString.trim();
            return answerString;
        }
    }
  
    /**
    * @param args the command line arguments
     * little test driver
    */
    public static void main (String args[]) {
            char yn = RedmondMsgInBasic.readValidYN("Do you want to play hearts?");
            System.out.println("echo: " + yn);
        //String answ = RedmondMsgInBasic.readString("What is your pin?");
        //System.out.println("PIN: " + answ);
            String answ = RedmondMsgInBasic.readString("What is your pin?");
            System.out.println("PIN: " + answ);
            int age = RedmondMsgInBasic.readValidInt("Please enter your age",0,120);
            System.out.println("Your age is: " + age);
            double income = RedmondMsgInBasic.readValidDouble("How much did you make this week",0.0,1200.00);
            System.out.println("Your weekly earnings are: " + income);
        int finalAnswer = RedmondMsgInBasic.readValidInt("Please enter your age",0,120);
        System.out.println("Your age is: " + finalAnswer);
        int temperature = RedmondMsgInBasic.readValidInt("Please enter the current temperature in degrees fahrenheit",-5,110);
        System.out.println("The current temperature is: " + temperature);
        System.exit(0);
    }
    
    

}