public class TestQuestions  {

static ArrayList myQuestion = new ArrayList();
static ArrayList wrongAnswers = new ArrayList();
static Random num = new Random();
static int numProblems = 0, numCorrect = 0, countR = 0, testNumber;
static Questions currentQuestion;
static String quesAns;

public static void main(String args[]) {
ConsoleIO input = new ConsoleIO();
System.out.print("Enter user name:");
String userName = input.readLine();

System.out.println("Enter Test Number, 1 or 2:");

testNumber = input.readInt();
while((testNumber != 1) && (testNumber != 2))
{
System.out.print("Not a valid test number, choice again:");
testNumber = input.readInt();
}

String test =  null;
switch(testNumber){
case 1:
test = "questionsandanswers.txt";
break;
case 2:
test = "answersandquestions.txt";
break;
}
System.out.print("How many questions do you want (more than 10 = 10)?");
int numOfQuestions = input.readInt();
readInQuestions(test);
System.out.println();

while(countR != numOfQuestions && countR <10){
//System.out.println(myQuestion.size());
System.out.println("\n**********************************************\n");
choiceNextProblem();
System.out.println(currentQuestion.getQuestion());
System.out.println(currentQuestion.mixThemUp());
//System.out.println(currentQuestion.getAnswer());
char answer = (char)(input.readToken().charAt(0));
switch(answer){
case 'a': answer = 'A';
break;
case 'b': answer = 'B';
break;
case 'c': answer = 'C';
break;
case 'd': answer = 'D';
break;
case 'e': answer = 'E';
break;
default: break;
}

while(answer > 'F'){
System.out.print("Invalid answer, reenter.");
answer = (char)(input.readToken().charAt(0));

switch(answer){
case 'a': answer = 'A';
break;
case 'b': answer = 'B';
break;
case 'c': answer = 'C';
break;
case 'd': answer = 'D';
break;
case 'e': answer = 'E';
break;
default: break;
}
}

if(currentQuestion.getAnswer() == answer)
numCorrect++;
else
wrongAnswers.add(new Integer(currentQuestion.getId()));

numProblems++;
countR++;
}
//System.out.println(currentQuestion.getAnswer() + " " + answer);
Calendar cal = new GregorianCalendar();

int hour = cal.get(Calendar.HOUR_OF_DAY);
int min = cal.get(Calendar.MINUTE);

System.out.println(numCorrect + "/" + numProblems);
System.out.println(((double)numCorrect / numProblems) * 100 + "%");
writeInfo(userName, numCorrect, numProblems, hour, min, wrongAnswers, test);
reportWrong(wrongAnswers);
}

public static void readInQuestions(String file){
FileInput inFile;
String fileName = file;
inFile = new FileInput(fileName);
String ans, aAns, bAns, cAns, dAns, eAns;
String questString = "";
int x = 0;
boolean questionTest;

while(inFile.hasMoreLines()){
questionTest = true;
questString = "";
if(((char)(inFile.readLine()).charAt(0)) == '$'){
questString += inFile.readLine();

while (questionTest){
String tempReadIn = inFile.readLine();

if (((char)tempReadIn.charAt(0))!= '@')
{
questString += "\n" + tempReadIn;
questionTest = true;
}

else
{
questionTest = false;
}
}

}
int id = inFile.readInt();
ans = inFile.readLine();
aAns = ans;
bAns = inFile.readLine();
cAns = inFile.readLine();
dAns = inFile.readLine();
eAns = inFile.readLine();
myQuestion.add(new Questions(id, questString, ans, aAns, bAns, cAns, dAns, eAns));
}
}

public static void choiceNextProblem(){

int nextNumber = num.nextInt(myQuestion.size());
currentQuestion = (Questions)myQuestion.get(nextNumber);
myQuestion.remove(nextNumber);
}

public static void writeInfo(String name, int correct, int probs, int hour, int min, ArrayList wronged, String test){
String fileName = "userInfo.txt";
FileOutput outFile = new FileOutput(fileName,"append");
outFile.println("Name: " + name);
outFile.println("Test Name: " + test);
outFile.println("Questions wronged: "+ wronged);
outFile.println("Number Correct: " + correct);
outFile.println("Number of Problems: " + probs);
outFile.println("Time: " + hour + ":" + min);
//outFile.println(report);
outFile.println();
outFile.close();
}

public static void reportWrong(ArrayList wrongAnswers){
FileInput myFile = new FileInput("testResults.txt");

int[] wrongAnswersArray = new int[10];
String [] holder = new String[10];
switch(testNumber){
case 1:myFile.readLine();
  for(int a = 0; a < wrongAnswersArray.length; a++){
  String nextLine = myFile.readLine();
  int dotLocation = nextLine.indexOf(":");
  int value = Integer.parseInt(nextLine.substring(dotLocation+1));
  wrongAnswersArray[a] = value;
  //System.out.println(value);
 
  }
 
  for(int b = 0; b < wrongAnswers.size(); b++){
  Integer wrapper = (Integer)wrongAnswers.get(b);
  wrongAnswersArray[wrapper.intValue()-1]++;  
  }
 
  myFile.readLine();
  //myFile.readLine();
  for(int c = 0; c < 10; c++){
 
  String nextLine = myFile.readLine();
  holder[c] = nextLine;
  //System.out.println("test");
 
  }
 
  myFile.close();
  FileOutput myFileOut = new FileOutput("testResults.txt");
 
 
  myFileOut.println("questionsandanswers.txt");
  for(int d = 0; d < wrongAnswersArray.length; d++){
  myFileOut.println(d+1 + ":" + wrongAnswersArray[d]);
  }
 
  myFileOut.println("answersandquestions.txt");
  myFileOut.println("");
 
  for(int e = 0; e < 10; e++){
  myFileOut.println(holder[e]);
  }
 
   
  break;
 

 
case 2:
  myFile.readLine();
  for(int c = 0; c < 10; c++){
  String nextLine = myFile.readLine();
  holder[c] = nextLine;
 
  }
 
  myFile.readLine();
  myFile.readLine();
 
  for(int a = 0; a < wrongAnswersArray.length; a++){
  String nextLine = myFile.readLine();
  int dotLocation = nextLine.indexOf(":");
  int value = Integer.parseInt(nextLine.substring(dotLocation+1));
  wrongAnswersArray[a] = value;
 
  }
 
  for(int b = 0; b < wrongAnswers.size(); b++){
  Integer wrapper = (Integer)wrongAnswers.get(b);
  wrongAnswersArray[wrapper.intValue()-1]++;  
  }
  break;

default: break;

}

}

}

class Questions {
Random num = new Random();
private String question, answer, A,B,C,D,E;
ArrayList options = new ArrayList();
private int questId;
public Questions(int id, String quest, String An, String a, String b, String c, String d, String e){
question = quest;
questId = id;
answer = An;
options.add(a);
options.add(b);
options.add(c);
options.add(d);
options.add(e);
options.add(An);
}

public String getQuestion(){
return question;
}

public int getId(){
return questId;
}

public char getAnswer(){
return (char)answer.charAt(0);
}

public String mixThemUp(){
String quesAns= "";
int startLetter = 65;
int nextAns;
//System.out.println(options.size());
while (options.size() > 1){
//nextAns = num.nextInt(options.size()-1);
double nextAn = (Math.random() * 10);

while((int)nextAn >= options.size()-1){
nextAn = (Math.random() * 10);
}
nextAns = (int)nextAn;

//System.out.println(nextAns);
String stringOption = (String)options.get(nextAns);
if(stringOption.equals(answer))
{
answer = (char)startLetter + " ";
//System.out.println(answer);
}

quesAns+= (char)startLetter + "." + stringOption + "\n";
options.remove(nextAns);
startLetter++;
//nextAns = num.nextInt(options.size()-1);

}
return quesAns;
}

}