<?php

class timekeeper_Question_Engine {

    public $yearlevel;
    public $subjectSelector;
    private $FormattedQuestionForm;

    public function GetRandomQuestion() {
        $this->FormattedQuestionForm = e107::getForm()->open('questionForm', 'post', '', ['autocomplete' => 'off', 'class' => 'formclass']) . "\n";
        //$tmp = new EnglishYearTwo;
        //$tmp->RandomQuestion();
        $Years = [
            'YearOne',
            'YearTwo',
            'YearThree',
            'YearFour',
            'YearFive',
            'YearSix',
            'YearSeven',
            'YearEight',
            'YearNine',
            'YearTen',
            'YearEleven',
            'YearTwelve',
        ];

        $Function = $Years[($this->yearlevel) - 1];
        $this->FormattedQuestionForm .= e107::getForm()->hidden('yearLevel', $this->yearlevel) . "\n";
        $this->$Function();
        $this->FormattedQuestionForm .= '</br>';
        $this->FormattedQuestionForm .= e107::getForm()->button('Answered', 'Check answer') . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->close();
        $this->FormattedQuestionForm .= '</br>';
        //print_a(['GetRandomQuestion', $this->FormattedQuestionForm]);
        return $this->FormattedQuestionForm;
    }

    private function YearOne() {
        $subjects = [
            'english' => new EnglishYearOne(),
            //'languages' => $this->MathQuestions(),
            'mathematics' => new MathYearOne(),
                //'science' => $this->MathQuestions(),
        ];
        $Class = $subjects[$this->subjectSelector];
        $this->FormattedQuestionForm .= e107::getForm()->hidden('subject', $this->subjectSelector) . "\n";
        $Class->RandomQuestion();
        $this->FormattedQuestionForm .= $Class->FormattedQuestionForm;
    }

    private function YearTwo() {
        $subjects = [
            'english' => new EnglishYearTwo(),
            //'languages' => $this->MathQuestions(),
            'mathematics' => new MathYearTwo(),
                //'science' => $this->MathQuestions(),
        ];
        $Class = $subjects[$this->subjectSelector];
        $this->FormattedQuestionForm .= e107::getForm()->hidden('subject', $this->subjectSelector) . "\n";
        $Class->RandomQuestion();
        $this->FormattedQuestionForm .= $Class->FormattedQuestionForm;
    }

    private function YearThree() {
        
    }

    private function YearFour() {
        
    }

    private function YearFive() {
        
    }

    private function YearSix() {
        
    }

    private function YearSeven() {
        
    }

    private function YearEight() {
        
    }

    private function YearNine() {
        
    }

    private function YearTen() {
        
    }

    private function YearEleven() {
        
    }

    private function YearTwelve() {
        $subjects = [
            'english' => $this->MathQuestions(),
            'pePd' => $this->MathQuestions(), //health-and-physical-education
            'socialStudies' => $this->MathQuestions(), //humanities-and-social-sciences
            'languages' => $this->MathQuestions(),
            'mathematics' => $this->MathQuestions(),
            'science' => $this->MathQuestions(),
            'technologies' => $this->MathQuestions(),
            'art' => $this->MathQuestions()
        ];
        $subjects[$this->subjectSelector];
    }

}

//////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////
////////        Mathematics
//////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////
class MathYearOne {

    // Todo finish questions
    public $enabled = true;
    public $FormattedQuestionForm;
    private $diff = 0;

    function __construct() {
        $sql = e107::getDb();
        $userName = e107::getUser()->getLoginName();
        $this->diff = $sql->retrieve('timekeeperStats', 'timekeeper_percent', 'timekeeper_username="' . $userName . '" AND timekeeper_yearLevel=1');
        //print_a([$this->diff,'e107_timekeeperStats', '*', 'timekeeper_username="' . $userName . '"']);
        if (!isset($this->diff)) {
            $this->diff = 20;
        }
    }

    public function RandomQuestion() {
        $methods = preg_grep('/[^RandomQuestion]/', get_class_methods($this));
        $RandomEnglishType = rand(2, count($methods));
        $function = $methods[$RandomEnglishType];
        //print_a(['FunctionName'=>'RandomQusetion','Methods'=>$methods,'RandomSelectionNo'=>$RandomEnglishType,'CurrentSelection'=>$function]);
        return $this->$function();
        //return $this->gA();
    }

    private function NumberSequences() {

        $this->FormattedQuestionForm .= e107::getForm()->label('<b>Find the missing number(s) in the sequence.</b>') . "\n";
        $this->FormattedQuestionForm .= '</br>';


        $startingNumber = rand(0, (int) ($this->diff*3));
        $incrementalNumber = rand(1, (int) ($this->diff * 2));
        $missingNumber = rand(1, 10);
        $TempQuestion = "";
        for ($i = 1; $i <= 10; $i++) {
            if ($i == $missingNumber) {
                $this->FormattedQuestionForm .= e107::getForm()->label('???') . "\n";
                $this->FormattedQuestionForm .= "&nbsp;-&nbsp;";
                $TempQuestion .= "___,";
                $solution = $startingNumber;
            } elseif ($i == 10) {
                $this->FormattedQuestionForm .= e107::getForm()->label($startingNumber) . "\n";
                $TempQuestion .= $startingNumber;
            } else {
                $this->FormattedQuestionForm .= e107::getForm()->label($startingNumber) . "\n";
                $this->FormattedQuestionForm .= "&nbsp;-&nbsp;";
                $TempQuestion .= $startingNumber . ",";
            }
            $startingNumber += $incrementalNumber;
        }
        $this->FormattedQuestionForm .= e107::getForm()->text('q1', '', 80, ['placeholder' => 'Write first answer here!', 'autocomplete' => "off"]) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a1', $solution) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('qc1', 1) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('question', $TempQuestion) . "\n";
    }

    private function Addition() {

        $this->FormattedQuestionForm .= e107::getForm()->label('<b>Addition, find the answers.</b>') . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $firstNumber = rand(1, (int) ($this->diff * 13));
        $secondNumber = rand(1, $firstNumber);
        $this->FormattedQuestionForm .= e107::getForm()->label($firstNumber) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->label(" + " . $secondNumber) . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $this->FormattedQuestionForm .= e107::getForm()->text('q1', '', 80, ['placeholder' => 'Write answer here!', 'autocomplete' => "off"]) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a1', $firstNumber + $secondNumber) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('qc1', 1) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('question', $firstNumber . "+" . $secondNumber . "=") . "\n";
    }

    private function Subtraction() {
        $this->FormattedQuestionForm .= e107::getForm()->label('<b>Subtraction, find the answers.</b>') . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $firstNumber = rand(1, (int) ($this->diff * 9));
        $secondNumber = rand(1, $firstNumber);
        $this->FormattedQuestionForm .= e107::getForm()->label($firstNumber) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->label(" - " . $secondNumber) . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $this->FormattedQuestionForm .= e107::getForm()->text('q1', '', 80, ['placeholder' => 'Write answer here!', 'autocomplete' => "off"]) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a1', $firstNumber - $secondNumber) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('qc1', 1) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('question', $firstNumber . "-" . $secondNumber . "=") . "\n";
    }

    private function Multiplication() {
        $this->FormattedQuestionForm .= e107::getForm()->label('<b>Multiplication, find the answers.</b>') . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $firstNumber = rand(1, (int) ($this->diff*6));
        $secondNumber = rand(1, $firstNumber);
        $this->FormattedQuestionForm .= e107::getForm()->label($firstNumber) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->label(" x " . $secondNumber) . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $this->FormattedQuestionForm .= e107::getForm()->text('q1', '', 80, ['placeholder' => 'Write answer here!', 'autocomplete' => "off"]) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a1', ($firstNumber * $secondNumber)) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('qc1', 1) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('question', $firstNumber . "x" . $secondNumber . "=") . "\n";
    }

    private function Division() {
        $this->FormattedQuestionForm .= e107::getForm()->label('<b>Division, find the answers (No remainders).</b>') . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $firstNumber = rand(1, (int) ($this->diff*3));
        $secondNumber = rand(1, $firstNumber);
        $divNumber = $firstNumber * $secondNumber;
        $this->FormattedQuestionForm .= e107::getForm()->label($divNumber) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->label(" &#247; " . $secondNumber) . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $this->FormattedQuestionForm .= e107::getForm()->text('q1', '', 80, ['placeholder' => 'Write answer here!', 'autocomplete' => "off"]) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a1', (int) ($divNumber / $secondNumber)) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('qc1', 1) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('question', $divNumber . " &#247; " . $secondNumber . "=") . "\n";
    }

    private function Rounding() {

        $firstNumber = sprintf("%01.2f", (float) rand(100, (int) ($this->diff) * 100) / 100);
        $answer = sprintf("%01.2f", round($firstNumber / 5, 2) * 5);

        $this->FormattedQuestionForm .= e107::getForm()->label('<b>Rounding, round off $' . $firstNumber . ' to the nearest five cents.</b>') . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $this->FormattedQuestionForm .= e107::getForm()->text('q1', '', 80, ['placeholder' => 'Write answer here!', 'autocomplete' => "off"]) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a1', '$' . $answer) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('qc1', 1) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('question', "Round $" . $firstNumber . " off to the nearest five cents") . "\n";
    }

    private function RoundingWorded() {
        $this->FormattedQuestionForm .= e107::getForm()->label('<b>Rounding in practical use.</b>') . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $names = ['Joe', 'Mat', 'Dug', 'Adam', 'Will', 'Nick'];
        $Quests = [['{Name1} went to the shop to buy some lollies they were {RandomQuantity} for ${RandomPrice}. How much did he pay in total if he bought {LimitedQuantity} ?'
        , '({RandomQuantity}*{RandomPrice})*{LimitedQuantity}'],
            ['{Name1} bought a puppy they were {RandomQuantity} for ${RandomPrice}. How much did he pay in total if he bought {LimitedQuantity} ?'
                , '({RandomQuantity}*{RandomPrice})*{LimitedQuantity}'],
            ['{Name1} sold bananas for {RandomQuantity} for ${RandomPrice}. How much did he make in total if he sold {LimitedQuantity} ?'
                , '({RandomPrice}/{RandomQuantity})*{LimitedQuantity}'],
        ];

        $RandomQuantity = 1;
        $RandomPrice = sprintf("%01.2f", (float) rand(100, (int) ($this->diff / 6) * 100) / 100);
        $LimitedQuantity = (int) rand(1, (int) $this->diff);

        $SelectedQuestionNo = array_rand($Quests);
        $SelectedNameNo = array_rand($names);

        $returnQuestion = str_replace('{LimitedQuantity}', $LimitedQuantity, str_replace('{RandomPrice}', $RandomPrice, str_replace('{RandomQuantity}', $RandomQuantity, str_replace('{Name1}', $names[$SelectedNameNo], $Quests[$SelectedQuestionNo][0]))));
        $returnAnswer = str_replace('{LimitedQuantity}', $LimitedQuantity, str_replace('{RandomPrice}', $RandomPrice, str_replace('{RandomQuantity}', $RandomQuantity, $Quests[$SelectedQuestionNo][1])));
        $solvedAnswer = sprintf("%01.2f", round(eval('return ' . $returnAnswer . ';') / 5, 2) * 5);

//        print_a(['returnAnswer'=>$returnAnswer,
//            'returnQuestion'=>$returnQuestion,
//            'Selection1and2'=>$SelectedQuestionNo.'-'.$SelectedNameNo,
//            'question'=>$returnAnswer,
//            'evaled'=>$solvedAnswer]);

        $this->FormattedQuestionForm .= e107::getForm()->label("Round off to the nearest five cents. " . $returnQuestion) . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $this->FormattedQuestionForm .= e107::getForm()->text('q1', '', 80, ['placeholder' => 'Write answer here!', 'autocomplete' => "off"]) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a1', '$' . $solvedAnswer) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('qc1', 1) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('question', "Round off to the nearest five cents. " . $returnQuestion) . "\n";
    }

private function Fractions() {// needs to be multi part question
        require_once( __DIR__ . '/fraction/src/Fraction.php');
        
        $this->FormattedQuestionForm .= e107::getForm()->label('<b>Fractions, reduce to its simplest form to find the answers. (Answer as mixed fraction where possible.)</b>') . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $multiplier = rand(1, (int)($this->diff/4));
        $nominator = rand(1, (int)($this->diff/4));
        $denominator = rand(1, (int)($this->diff/4));
        
        $fract1 = new Fraction($nominator*$multiplier, $denominator*$multiplier);
        
        //print_a(['fraction1'=>(string)$fract1,'fraction2'=>(string)$fract2,'fraction3'=>(string)$fract3,]); // 1/2
        
        $this->FormattedQuestionForm .= e107::getForm()->label($nominator*$multiplier) . "<br/>\n";
        $this->FormattedQuestionForm .= "-------<br/>\n";
        $this->FormattedQuestionForm .= e107::getForm()->label($denominator*$multiplier) . "\n";
        $this->FormattedQuestionForm .= '</br></br>';
        
        $this->FormattedQuestionForm .= e107::getForm()->text('q1', '', 80, ['placeholder' => 'Write answer here!','autocomplete'=>"off"]) . "\n";
        $this->FormattedQuestionForm .= "-------<br/>\n";
        $this->FormattedQuestionForm .= e107::getForm()->text('q2', '', 80, ['placeholder' => 'Write answer here!','autocomplete'=>"off"]) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a1', (int)($fract1->getNumerator())) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a2', (int)($fract1->getDenominator())) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('qc1', 2) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('question', "Simplify " . $nominator*$multiplier . " over " . $denominator*$multiplier) . "\n";
    }
    
    // fractions greater lesser then ie. 1/2 > 1/3 ?
    
    function gA() {
     
        $this->FormattedQuestionForm = e107::getForm()->label('<b>General Knowledge</b>') . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $names = ['Joe', 'Mat', 'Dug', 'Adam', 'Will', 'Nick', 'Tim', 'Greg', 'Elliot'];
        $Quests = [['{Name1} ran {RandomQuantity}km. How many meters is that?'
        , '({RandomQuantity}*1000)','m'],
            ['{Name1} bought {RandomQuantity}m of string. How many centermeters did he buy?'
                , '({RandomQuantity}*100)','cm'],
            ['{Name1} ate {RandomQuantity}kg of roast beef. How many grams did he eat?'
                , '({RandomQuantity}*1000)','g'],
            ['{Name1} can build {RandomQuantity} cars a year. How many cars did he make last year?'
                , '({RandomQuantity})',''],
            ['{Name1} weighed {RandomQuantity}g of flux into a sample. How many mg did he weigh?'
                , '({RandomQuantity}*1000)','mg'],
            ['The perimeter of a square is {RandomQuantity} cm. What is the area of 2 such squares?'
                , '((({RandomQuantity}/4)*({RandomQuantity}/4))*2)','cm2'],
            ['{Name1} has ${RandomQuantity} and Silas has three times more than {Name1}. How much money do they have altogether?'
                , '"$".({RandomQuantity}+({RandomQuantity}*3))',''],
            ['The area of 2 squares is {RandomQuantity} cm². What is the area of 3 such squares?'
                , '(({RandomQuantity}/2)*3)','cm2'],
            //['A coffee costs $2.50. {Name1} spent $17.50. How many coffees did he buy?'
            //    , '(2.5*{RandomQuantity})', '']
            //['An adult bus ticket costs $6.50 and a child ticket costs $4. How much would 2 adults and 5 children cost to take the bus?'
            //    , '(({RandomQuantity}/2)*3)','cm2'],
            ];


        $RandomQuantity = sprintf("%01.1f", (float) rand(100, (int) ($this->diff / 6) * 100) / 100);

        $SelectedQuestionNo = array_rand($Quests);
        $SelectedNameNo = array_rand($names);

        $returnQuestion = str_replace('{RandomQuantity}', $RandomQuantity, str_replace('{Name1}', $names[$SelectedNameNo], $Quests[$SelectedQuestionNo][0]));
        $returnAnswer = str_replace('{RandomQuantity}', $RandomQuantity, $Quests[$SelectedQuestionNo][1]);

        $solvedAnswer = eval('return ' . $returnAnswer . ';');

        $this->FormattedQuestionForm .= e107::getForm()->label($returnQuestion) . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $this->FormattedQuestionForm .= e107::getForm()->text('q1', '', 80, ['placeholder' => 'Write answer here!', 'autocomplete' => "off"]) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a1', $solvedAnswer.$Quests[$SelectedQuestionNo][2]) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('qc1', 1) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('question', $returnQuestion) . "\n";
    
 }
    
}

class MathYearTwo {

    // Todo finish questions
    public $enabled = true;
    public $FormattedQuestionForm;
    private $diff = 0;

    function __construct() {
        $sql = e107::getDb();
        $userName = e107::getUser()->getLoginName();
        $this->diff = $sql->retrieve('timekeeperStats', 'timekeeper_percent', 'timekeeper_username="' . $userName . '" AND timekeeper_yearLevel=1');
        //print_a([$this->diff,'e107_timekeeperStats', '*', 'timekeeper_username="' . $userName . '"']);
        if (!isset($this->diff)) {
            $this->diff = 20;
        }
    }

    public function RandomQuestion() {
        $methods = preg_grep('/[^RandomQuestion]/', get_class_methods($this));
        $RandomEnglishType = rand(2, count($methods));
        $function = $methods[$RandomEnglishType];
        //print_a(['FunctionName'=>'RandomQusetion','Methods'=>$methods,'RandomSelectionNo'=>$RandomEnglishType,'CurrentSelection'=>$function]);
        return $this->$function();
    }

    private function Time() {
        $this->FormattedQuestionForm .= e107::getForm()->label('<b>Time.</b>') . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $firstNumber = rand(1, (int) ($this->diff / 4));
        $secondNumber = rand(1, $firstNumber);
        $this->FormattedQuestionForm .= e107::getForm()->label($firstNumber) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->label(" &#247; " . $secondNumber) . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $this->FormattedQuestionForm .= e107::getForm()->text('q1', '', 80, ['placeholder' => 'Write answer here!', 'autocomplete' => "off"]) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a1', (int) ($firstNumber / $secondNumber)) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('qc1', 1) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('question', $firstNumber . " &#247; " . $secondNumber . "=") . "\n";
    }

}

//////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////
////////        English
//////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////
class EnglishYearOne {

    // Todo finish questions
    public $enabled = false;
    public $FormattedQuestionForm;

    public function RandomQuestion() {
        $methods = preg_grep('/[^RandomQuestion]/', get_class_methods($this));
        $RandomEnglishType = rand(1, count($methods));
        $function = $methods[$RandomEnglishType];
        $this->$function();
    }

    private function Spelling() {
        include_once './resources/spellingLists.php';
        //print_a($wordsList);
        $words = [
            ['action', 'I like to watch action movies.'],
            ['actor', 'I thought the actor was good in that movie.'],
            ['actually', 'Did you actually think that would work.'],
            ['addition', 'Did you know addition is part of maths.'],
            ['agreed', 'I thought we agreed not to fight.'],
            ['allowed', 'Are you allowed to do that.'],
            ['aloud', 'Say your name out aloud.'],
            ['amendment', 'Do you know your first amendment rights.'],
            ['amount', 'What amount did you pay for that.'],
            ['amusement', 'Are you going on the amusement rides later.'],
            ['annual', 'Your birthday is an annual event.'],
            ['appointed', 'Do you know who the appointed prime minister is.'],
            ['arrange', 'Lets arrange to meet tomorrow afternoon.'],
            ['attention', 'Are you paying attention to what was just said.'],
            ['awhile', 'Could you wait awhile please.'],
            ['beginning', 'Did you understand the beginning of that movie.'],
            ['bruise', 'Did you get a bruise while playing sport.'],
            ['business', 'What kind of business would you like to open.'],
            ['calves', 'Did you see all the calves in the paddock.'],
            ['capital', 'Canberra is the capital city of Australia.'],
            ['capitol', 'The capitol building is where a legislature meets.'],
            ['captain', 'Did you see the captain of this ship.'],
            ['carefully', 'Walk down the stairs carefully so you don\'t fall.'],
            ['caught', 'The cat caught the mouse.'],
            ['cause', 'What do you think the cause of that is.'],
            ['celebrate', 'How do you want to celebrate your birthday.'],
            ['century', 'A century is one hundred years.'],
            ['chemical', 'What kind of chemical is lemon juice.'],
            ['chocolate', 'Would you like some chocolate ice cream.'],
            ['circle', 'Can you draw a circle neatly.'],
            ['climate', 'The weather is part of the climate.'],
            ['climbed', 'The hiker climbed up the hill.'],
            ['collar', 'My dog has a collar that he wears.'],
            ['column', 'Did you read the news column yesterday.'],
            ['company', 'What kind of company would you like to start.'],
            ['condition', 'What condition is your car in.'],
            ['consider', 'Would you consider this fun.'],
            ['consonant', 'The distinction between consonant and vowel is not always clear.'],
            ['constant', 'In math a constant is a number that is fixed and known.'],
            ['continent', 'A continent is one of several very large landmasses.'],
            ['continued', 'Was your story continued from the last one.'],
            ['country', 'Which country would you like to visit next.'],
            ['course', 'Lets go to the race course today.'],
            ['crystal', 'Check out that crystal vase in the shop.'],
            ['current', 'What is the current weather where you are.'],
            ['curtain', 'Coult you open the curtain to let some light in.'],
            ['daughter', 'Does your daughter like ice cream.'],
            ['daytime', 'Is it daytime where you are.'],
            ['decided', 'I thought we decided to watch the movie.'],
            ['decimal', 'Do not forget the decimal place when doing math.'],
            ['delicious', 'That was a delicious apple pie.'],
            ['desert', 'Do not desert your army unit.'],
            ['dessert', 'we made a dessert of chocolate mousse.'],
            ['details', 'You need to give more details so people understand.'],
            ['determine', 'You need to determine why that happened.'],
            ['dictionary', 'A dictionary lists words and their meanings.'],
            ['difference', 'Can you see the difference between the two dogs.'],
            ['different', 'Do you know which is the different picture.'],
            ['difficult', 'It is very difficult to copy a painting perfectly.'],
            ['direction', 'Are you sure this is the right direction to take.'],
            ['disappoint', 'You could disappoint me if you get this wrong.'],
            ['division', 'I am not very good at long division in math.'],
            ['eighth', 'This is the eighth day of the month.'],
            ['election', 'Who did you vote for in the election today.'],
            ['elements', 'Do you know the periodic table of elements in science.'],
            ['energy', 'Do you have the energy to participate in another race.'],
            ['enjoyment', 'Do you find enjoyment getting these answers right.'],
            ['equal', 'What is equal to one plus one.'],
            ['equation', 'A math equation can be fun to figure out.'],
            ['errands', 'What errands do you have to run today.'],
            ['exact', 'Please be exact with your answers.'],
            ['except', 'I have finished all the letters except one.'],
            ['expect', 'I expect you to get this question right.'],
            ['explain', 'Please explain yourself clearly.'],
            ['explode', 'Bombs can explode even when not set off.'],
            ['express', 'Did you send your letter via express post.'],
            ['factory', 'What happened at the toy factory today.'],
            ['fault', 'There was a fault in the manufacturing process.'],
            ['favorite', 'What is your favorite ice cream.'],
            ['finally', 'We finally finished all of out studies today.'],
            ['finished', 'We finally finished all of out studies today.'],
            ['forward', 'Pushing up on the control makes the car move forward.'],
            ['fought', 'You fought with your brother again.'],
            ['fraction', 'What fraction of your class is boys.'],
            ['furniture', 'Should we go to the furniture store today.'],
            ['future', 'I the future you will be better at this.'],
            ['general', 'The arrangements were outlined in very general terms.'],
            ['government', 'Most countries have a government to run them.'],
            ['graceful', 'The girl was very graceful as she moved across the room.'],
            ['graph', 'Did you see the bar graph at the convention.'],
            ['grasp', 'Do you have a grasp on the topic at hand.'],
            ['grease', 'You can use grease to lubricate machinery.'],
            ['grown-ups', 'I do not like it when grown-ups get all serious.'],
            ['guest', 'Would you show our guest to his room.'],
            ['guide', 'Did you follow the guide during the tour.'],
            ['happened', 'What happened to your knee.'],
            ['happily', 'He happily went to school this morning.'],
            ['harvest', 'The farmer was happy the harvest went well this year.'],
            ['healthy', 'The baby was healthy when he was born.'],
            ['height', 'What is the height of that tree over there.'],
            ['hoarse', 'The grumpy old man has a hoarse voice.'],
            ['human', 'Pet food is not fit for human consumption.'],
            ['idea', 'Do you have any idea how he got up there.'],
            ['imagine', 'Can you imagine how much fun that would be.'],
            ['include', 'Remember to include your brother when you are playing games.'],
            ['increase', 'Can you increase the temperature as I am feeling cold.'],
            ['indicate', 'Sales indicate a growing market for such art.'],
            ['information', 'What information do you need.'],
            ['instrument', 'What is your favorte musical instrument to play.'],
            ['intention', 'What is your intention with that foam sword.'],
            ['interesting', 'The news was very interesting today.'],
            ['inventor', 'Do you know the inventor that created the light bulb.'],
            ['island', 'Australia is the largest island in the world.'],
            ['jewel', 'She was the jewel of his eye.'],
            ['journey', 'I am embarking on a journey around the world.'],
            ['jungle', 'The tree tops of the jungle make a canopy.'],
            ['knives', 'I bought a block of knives from the home store.'],
            ['known', 'He was well known throughout the land.'],
            ['language', 'What other language do you speak.'],
            ['laughter', 'The audience bust into laughter while watching the comedian.'],
            ['length', 'How long was the length of string.'],
            ['limb', 'Did you break the tree limb while you were climbing it.'],
            ['located', 'Where is the school located on the map.'],
            ['lumber', 'We went to the lumber yard to buy some wood.'],
            ['major', 'The use of drugs is a major problem.'],
            ['mammal', 'Did you know every mammal is warm blooded.'],
            ['manufacture', 'Do you know where they manufacture those toys.'],
            ['material', 'What material is her dress made of.'],
            ['mayor', 'Did you see the mayor of the city.'],
            ['measure', 'You can use a ruler to measure things.'],
            ['melody', 'Can you play a melody on the flute.'],
            ['members', 'Do you know who the members of parliment are.'],
            ['memories', 'Do you have good memories of your last holiday.'],
            ['message', 'What message would you like to pass.'],
            ['method', 'What method do you use to remember things.'],
            ['million', 'I would love to have one million dollars.'],
            ['minor', 'That was only a minor car crash.'],
            ['modern', 'Do you like modern art.'],
            ['mountain', 'Can you see the mountain in the distance.'],
            ['music', 'What kind of music do you like.'],
            ['natural', 'Carrots contain a natural antiseptic.'],
            ['necessary', 'The council granted the necessary planning permission.'],
            ['neither', 'He didn\'t remember, and neither did I.'],
            ['newspaper', 'The local newspaper had the story.'],
            ['northern', 'The cliff protects the bay from the northern winds.'],
            ['notebook', 'Make sure you write it down in your notebook so you don\'t forget.'],
            ['notice', 'The jobs were advertised in a notice posted in the newspaper.'],
            ['noun', 'Example of a noun is a "toothbrush".'],
            ['numeral', 'Do you know what the roman numeral "X" stands for.'],
            ['object', 'Disease became the object of investigation.'],
            ['observe', 'Shouldn\'t you observe what the teacher is showing.'],
            ['opposite', 'Whats the opposite of left.'],
            ['orphan', 'An orphan is a child without parents.'],
            ['ought', 'Five minutes ought to be enough time,'],
            ['outside', 'Do you want to go outside to play.'],
            ['oxygen', 'There is oxygen in the air we breathe.'],
            ['paid', 'I paid the bill using my key card.'],
            ['paint', 'Could you help me paint the house.'],
            ['paragraph', 'Did you read the whole paragraph of the story.'],
            ['pattern', 'What pattern is that on your shirt.'],
            ['pause', 'Can you pause your movie for a minute to help me.'],
            ['payment', 'How did you make the payment while shopping.'],
            ['perhaps', 'Would you perhaps consent to act as our guide.'],
            ['period', 'The Cretaceous period was a time that dinosaurs existed.'],
            ['permit', 'Some places require a parking permit to park there.'],
            ['phone', 'Did someone call your phone just now.'],
            ['phrase', 'Could you repeat that phrase again.'],
            ['pleasant', 'Try to be pleasant when talking to people.'],
            ['pleasure', 'She smiled with pleasure at being praised.'],
            ['plural', 'The plural of a word eans there is more than one.'],
            ['poison', 'Be careful as there is poison in that bottle.'],
            ['position', 'What position would you like to play as.'],
            ['possible', 'I did not think that was possible in this game.'],
            ['practice', 'You need lots of practice to get good at things.'],
            ['prepared', 'Make sure you are well prepared for the test later.'],
            ['president', 'Do you know who is the president of the European Union.'],
            ['probably', 'She would probably never see him again.'],
            ['problem', 'What seems to be the problem that you are experiencing.'],
            ['process', 'The manufacturing process is relatively simple.'],
            ['produce', 'The produce of a farm is fruit and vegetables.'],
            ['program', 'An extensive program of reforms.'],
            ['promise', 'I promise to do my studies later.'],
            ['property', 'She wanted Oliver and his property out of her flat.'],
            ['protection', 'Make sure you have protection on when you go out to play.'],
            ['provide', 'Can you provide more details please.'],
            ['puzzle', 'Did you solve the puzzle yesterday.'],
            ['quickly', 'Can you quickly answer the question.'],
            ['quietly', 'Can you quietly answer the question.'],
            ['radio', 'What radio station are you listening to.'],
            ['raise', 'You can raise chickens for eggs.'],
            ['rarely', 'You rarely find gold on the ground.'],
            ['rather', 'She has been behaving rather strangely.'],
            ['reached', 'The boy reached out to catch the ball.'],
            ['receive', 'Did you receive your letter of approval.'],
            ['record', 'We should record a song together.'],
            ['region', 'What region do you live in.'],
            ['relax', 'Try to relax at the spa later.'],
            ['remain', 'Try to remain impartial in the debate.'],
            ['remove', 'Can you remove your toys from the kitchen.'],
            ['repay', 'Just repay me when you get the money.'],
            ['repeat', 'Can you repeat what you just said.'],
            ['report', 'What did your school report say.'],
            ['represent', 'The lawyer can represent you in court.'],
            ['respond', 'Please respond when someone speaks to you.'],
            ['result', 'What is the result of the test.'],
            ['rhythm', 'Do you like the rhythm of this song.'],
            ['rising', 'I think the tide is rising quickly.'],
            ['ruin', 'Do not drag your feet or you will ruin your shoes.'],
            ['salad', 'Would you like some salad with dinner.'],
            ['sandal', 'A sandal is a type of open toed shoe.'],
            ['scale', 'I found a scale in my fish soup.'],
            ['scent', 'A flowers scent can be beautiful.'],
            ['schedule', 'The train follows a strict schedule of stops.'],
            ['science', 'Do you like science at school.'],
            ['section', 'What section of the class are you in.'],
            ['separate', 'Keep the ingredients separate until you are told to mix them.'],
            ['service', 'We need to send the car for service later today.'],
            ['settled', 'When the class settled the teacher started teaching.'],
            ['several', 'When several students misbehave the teacher gets mad.'],
            ['shadow', 'A sundial uses a shadow to tell the time.'],
            ['shelter', 'We better get to shelter before the storm get here.'],
            ['shoulder', 'The man carried the log on his shoulder because it was heavy.'],
            ['shouted', 'The man shouted at the kids to stay out of the worksite.'],
            ['shower', 'Remember to have a shower before going to bed.'],
            ['signal', 'Remember to signal when turning the corner.'],
            ['similar', 'That bike looks similar to yours.'],
            ['sincerely', 'I sincerely hope you get this right.'],
            ['single', 'She wrote down every single word.'],
            ['size', 'What size clothes do you wear.'],
            ['slippery', 'Be careful as the shower is slippery when wet.'],
            ['soar', 'The eagle can soar high in the sky.'],
            ['soil', 'The farmer needed to order more soil for his farm.'],
            ['solution', 'The solution to the puzzle is on the back page.'],
            ['solve', 'Can you solve that puzzle.'],
            ['southern', 'Australia is in the southern hemisphere.'],
            ['split', 'The man used the axe to split the wood.'],
            ['spoiled', 'What a spoiled little brat.'],
            ['sports', 'What sports do you like to play.'],
            ['square', 'Is that a square or a triangle.'],
            ['squeeze', 'Do you like to squeeze the juice out of oranges.'],
            ['stain', 'Be careful as chocolate can stain very badly.'],
            ['state', 'Do you know what state you live in.'],
            ['statement', 'The police gave a statement about crime.'],
            ['station', 'The trian stopped at the station to pick up passengers.'],
            ['steer', 'The driver can steer the car around.'],
            ['stomach', 'My stomach is painful after eating too much.'],
            ['stopping', 'Caution, frequently stopping vehicle.'],
            ['straight', 'I can see straight down the road.'],
            ['straighten', 'I got the hair dresser to straighten my hair.'],
            ['stream', 'I like to sit by the stream and read a book.'],
            ['stretched', 'Wear your jumper properly so it doesn\'t get stretched further.'],
            ['suggest', 'I suggest you pay attention to your studies.'],
            ['suitcase', 'Have you packed your suitcase for the trip.'],
            ['sunset', 'I would live to watch the sunset over the ocean.'],
            ['supply', 'The army supply depot ran out of bullets.'],
            ['sure', 'Are you sure you want to do that.'],
            ['surface', 'The surface of the salt lake is very flat.'],
            ['surprise', 'The announcement came as a complete surprise to all of us.'],
            ['surround', 'The army tried to surround the enemy.'],
            ['sweater', 'It is cold outside, you should put your sweater on.'],
            ['syllable', 'Can you name a two syllable word.'],
            ['syrup', 'What kind of syrup would you like on your pancakes.'],
            ['tablet', 'Do you like using a tablet computer.'],
            ['tasty', 'Would you like a bite of my tasty pie.'],
            ['teaspoon', 'Could you get a teaspoon for my coffee please.'],
            ['terrible', 'Your brother can make a terrible mess at times.'],
            ['though', 'You will be informed of its progress, slow though that may be.'],
            ['thoughtful', 'That was a very thoughtful gift to give.'],
            ['thrown', 'The ball was thrown into the play area.'],
            ['tornado', 'The tornado destroyed alot of houses.'],
            ['toward', 'Move toward your brother so we can take the photo.'],
            ['traffic', 'The traffic down town is quite busy.'],
            ['trail', 'Please keep to the trail while bush walking.'],
            ['treasure', 'The treasure map has a big "X" on it.'],
            ['treatment', 'You may need to go to hospital for treatment of your injuries.'],
            ['triangle', 'A triangle is a shape that has three sides.'],
            ['trouble', 'Try to stay out of trouble while playing.'],
            ['tunnel', 'The train goes through a tunnel to cross the mountian.'],
            ['type', 'What type of food do you like to eat.'],
            ['understood', 'I hope you understood the directions.'],
            ['unknown', 'Exploration into unknown territory can be exciting.'],
            ['usually', 'I usually go to the shops early in the morning.'],
            ['value', 'What is the value of your house.'],
            ['various', 'There are various ways to learn.'],
            ['warn', 'Did you warn your friends about the wasp nest.'],
            ['weigh', 'Can you weigh yourself on the scales.'],
            ['weight', 'What is your weight on the scales.'],
            ['weird', 'Thats a weird way to do things.'],
            ['western', 'There will be showers in some western areas.'],
            ['whisper', 'Can you whisper the answer to me.'],
            ['whoever', 'Thank you whoever you are.'],
            ['whole', 'Would you like a whole apple.'],
            ['whose', 'I wonder whose shoes those are.'],
            ['wives', 'The wives went shopping together.'],
            ['women', 'The women had a meet up at the local coffee shop.'],
            ['wonderful', 'It is a wonderful day outside.'],
            ['wound', 'The guy had a gun wound after he was shot.'],
            ['wreck', 'We are going diving at the ship wreck.'],
            ['x-ray', 'Did they x-ray your broken arm.'],
            ['yesterday', 'What did you do yesterday after school.'],
        ];
//        $words = [
//            ['Actor','The movie had some good actors in it.'],
//            ['addition','Can you do addition.'], 
//            ['advice','Can I give you some advice on how to beat the game.'],
//            ['against','Today you will be playing against a team.'], 
//            ['ahead','If you study hard you can get ahead of your class.'], 
//            ['amount','What is the amount of money you need to buy something.'], 
//            ['annual','Christmas is an annual event.'], 
//            ['answer','You need to answer this question.'], 
//            ['apiece','The cupcakes are two dollars apiece.'], 
//            ['argue','You should not argue with your parents.'], 
//            ['author','Did you see who the author of that book is.'], 
//            ['avoid','You should avoid making mistakes.'], 
//            ['beetle','There was a beetle in the garden.'], 
//            ['borrow','Can I borrow your book.'], 
//            ['breath','Take a deep breath and calm down.'], 
//            ['calm','Keep calm while talking to people.'], 
//            ['canal','Can you see all the water in the canal.'], 
//            ['cannon','The army has a big cannon.'], 
//            ['central','The post office is in a central location.'], 
//            ['charge','You need to charge your phone.'], 
//            ['collar','Your shirt has a collar.'], 
//            ['continue','Can you continue reading your book.'], 
//            ['creation','What kind of creation are you working on.'], 
//            ['cried','I cried when my brother hit me.'], 
//            ['daily','The daily paper had some bad news in it.'], 
//            ['decorator','The decorator did a good job with this room.'], 
//            ['device','A tape measure is a device used for measuring lenghts.'], 
//            ['direction','Which direction is north.'], 
//            ['earthquake','The earthquake was very scary.'], 
//            ['enough','When you have had enough to eat you may leave the table.'], 
//            ['excuse','You need a better excuse to get out of studying.'], 
//            ['fraction','Your math has one more fraction left until its finished.'], 
//            ['furniture','The furniture shop sells some nice tables.'], 
//            ['ghost','The ghost scared everyone that night.'], 
//            ['guess','Try to guess what im holding behind my back.'], 
//            ['ignore','When someone calls you names just ignore them.'], 
//            ['island','There is an island just off the coast.'], 
//            ['journal','You can keep a journal of things you have done.'], 
//            ['judge','You should be able to judge how far away the car is.'], 
//            ['kept','He kept his promise to play after school.'], 
//            ['ledge','Please stay away for the ledge so you dont fall off.'], 
//            ['lettuce','Would you like lettuce on your burger.'], 
//            ['manage','If you manage to finish your studies you can play.'], 
//            ['mention','Dont mention to your friends about the movie on tonight.'], 
//            ['narrate','You need to narrate the movie we are making.'], 
//            ['nineteen','Runner nineteen won the race.'], 
//            ['noisy','The neighbours can be very noisy at times.'], 
//            ['often','Try not to make mistakes too often.'], 
//            ['palm','Palm trees like to grow near the beach.'], 
//            ['people','There are lots of people at the station.'], 
//            ['portion','You can have a portion of the pie for dinner.'], 
//            ['praise','The teacher will praise you if you do a good job.'], 
//            ['remark','The teacher left a remark on my report card.'], 
//            ['repair','The mechanic knows how to repair the car.'], 
//            ['royal','The queen is part of the royal family.'], 
//            ['shear','Do you know how to shear a sheep.'], 
//            ['slept','The baby slept most of the day.'], 
//            ['station','The train stops at the station to pick up passengers.'], 
//            ['steam','The steam engine runs on steam.'], 
//            ['strange','Its strange that you dont like sweets.'], 
//            ['stretch','Can you stretch up and reach the roof.'], 
//            ['sweat','It so hot outside that it will make you sweat.'], 
//            ['terrible','Sometimes little borthers and sisters can make a terrible mess.'], 
//            ['themselves','Some people only think of themselves.'], 
//            ['thirsty','If you dont drink you will be thirsty.'], 
//            ['throne','The queen sits on a throne.'], 
//            ['tried','I tried to study hard.'], 
//            ['trouble','If you dont do as you ar told you will get into trouble.'], 
//            ['understand','If you dont understand what I said then I can repeat it.'], 
//            ['until','You must study until you understand the subject.'], 
//            ['vacation','The vacation we had in asia was fun.'], 
//            ['visitor','If you go to see someone at their house you are a visitor.'], 
//            ['vocal','If someone shares their opinion they are being vocal.'], 
//            ['wander','If you wander aroud the shopping centre you may get lost.'], 
//            ['weave','Do you know how to weave a basket.'], 
//            ['whenever','You can ask for help whenever you need it.'], 
//            ['whole','Can you really put the whole fork in your mouth.'], 
//            ];
//        $words = ['add', 'after', 'again', 'any', 'apple', 'arm', 'banana', 'bark', 'been', 'being', 'bent', 'best', 'bone', 'black', 'block', 'blue', 'bring', 'brown', 'bush', 'came', 'cane', 'card', 'cart', 'case', 'chain', 'chair', 'chalk', 'chat', 'chin', 'chop', 'clam', 'clan', 'clap', 'claw', 'clay', 'clean', 'cool', 'dark', 'desk', 'drop', 'end', 'family', 'fang,fast', 'fell', 'few', 'fill', 'flag', 'flat', 'fool', 'foot', 'fort', 'free', 'fresh', 'from', 'glad', 'golf', 'gone', 'grit', 'hand', 'hang', 'happy', 'harm', 'help', 'here', 'hide', 'hill', 'hint', 'hope', 'horn', 'how', 'ill', 'into', 'jaw', 'joke', 'just', 'keep', 'king', 'last', 'line', 'look', 'luck', 'made', 'many', 'meal', 'must', 'nice', 'new', 'next', 'odd', 'put', 'quit', 'rang', 'space', 'said', 'time', 'was', 'yard', 'yarn',
//                'baseball', 'brother', 'can\'t', 'clover', 'cloud', 'crayon', 'club', 'coat', 'come', 'cookie', 'could', 'crow', 'cube', 'cupcake', 'deal', 'dew', 'didn\'t', 'dime', 'dine', 'dirt', 'doll', 'don\'t', 'door', 'draw', 'dream', 'dress', 'drink', 'dull', 'each', 'east', 'easy', 'eight', 'eleven', 'every', 'father', 'field', 'fine', 'first', 'flew', 'flower', 'friend', 'globe', 'going', 'grape', 'grass', 'grew', 'heavy', 'I\'m', 'it\'s', 'know', 'marker', 'maybe', 'milk', 'morning', 'mother', 'myself', 'much', 'never', 'notebook', 'other', 'over', 'paper', 'pencil', 'pretty', 'rabbit', 'school', 'seven', 'sew', 'shirt', 'sister', 'smell', 'stray', 'string', 'summer', 'start', 'swing', 'table', 'thank', 'thrift', 'twelve', 'twist', 'under', 'very', 'water', 'were', 'where', 'won\'t', 'yellow', 'zebra', 'zero',
//                'always', 'animal', 'around', 'because', 'before', 'believe', 'between', 'bread', 'bright', 'busy', 'cannot', 'caught', 'charge', 'clapped', 'clean', 'chicken', 'children', 'doctor', 'does', 'goes', 'everyone', 'everywhere', 'flight', 'inside', 'juice', 'kitchen', 'laughter', 'lunchroom', 'nobody', 'once', 'orange', 'outside', 'piece', 'purple', 'raise', 'round', 'shoes', 'today', 'used', 'weak', 'week', 'whale', 'which', 'while', 'wool', 'yesterday'];
        //$RandomEnglishWord = $words[rand(1, count($words))];
        $RandomEnglishWord = $words[array_rand($words)];
        //exec('espeak -ven+f3 -k5 -s125 -w"./audio/'.$RandomEnglishWord[0].'.wav" "Spell the word, '.$RandomEnglishWord[0].'. '.$RandomEnglishWord[1].'"');
        //./audio/flite-2.0.0-release/bin/flite -voice ./audio/voices/cmu_us_aew.flitevox -o "./audio/'.$RandomEnglishWord[0].'.wav" "Spell the word, '.$RandomEnglishWord[0].'. '.$RandomEnglishWord[1].'"');
        exec('./audio/flite-2.0.0-release/bin/flite -voice ./audio/voices/cmu_us_aew.flitevox -o "./audio/' . $RandomEnglishWord[0] . '.wav" "Spell the word, ' . $RandomEnglishWord[0] . '. ' . $RandomEnglishWord[1] . '"');
        //print_a([exec('ls ./audio/'),$RandomEnglishWord]);
        $this->FormattedQuestionForm .= "<audio controls><source src='audio/" . $RandomEnglishWord[0] . ".wav' type='audio/wav'>Your browser does not support the audio element.</audio> ";
        $this->FormattedQuestionForm .= e107::getForm()->text('q1', '', 80, ['placeholder' => 'Write answer here!', 'autocomplete' => "off"]);
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a1', $RandomEnglishWord[0]);
        $this->FormattedQuestionForm .= e107::getForm()->hidden('qc1', 1);
        $this->FormattedQuestionForm .= e107::getForm()->hidden('question', "Spell the word " . $RandomEnglishWord[0] . "");
    }

}

class EnglishYearTwo {

    // Todo finish questions
    public $enabled = false;

    public function RandomQuestion() {
        $methods = preg_grep('/[^RandomQuestion]/', get_class_methods($this));
        $RandomEnglishType = rand(1, count($methods));
        $function = $methods[$RandomEnglishType];
        $this->$function();
    }

//centry
//mellenium etc...
    private function Nouns() {
        $this->FormattedQuestionForm .= e107::getForm()->label('<b>Nouns.</b>') . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $firstNumber = rand(1, (int) ($this->diff / 4));
        $secondNumber = rand(1, $firstNumber);
        $divNumber = $firstNumber * $secondNumber;
        $this->FormattedQuestionForm .= e107::getForm()->label($divNumber) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->label(" &#247; " . $secondNumber) . "\n";
        $this->FormattedQuestionForm .= '</br>';

        $this->FormattedQuestionForm .= e107::getForm()->text('q1', '', 80, ['placeholder' => 'Write answer here!', 'autocomplete' => "off"]) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('a1', (int) ($divNumber / $secondNumber)) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('qc1', 1) . "\n";
        $this->FormattedQuestionForm .= e107::getForm()->hidden('question', $divNumber . " &#247; " . $secondNumber . "=") . "\n";
    }

    private function SingularPluralNouns() {
        
    }

    private function CountableUncountableNouns() {
        
    }

    private function Pronouns() {
        
    }

    private function Possession() {
        
    }

    private function Agreement() {
        
    }

    private function Adjectives() {
        
    }

    private function ComparisonOfAdjectives() {
        
    }

    private function DefiniteIndefiniteArticles() {
        
    }

    private function SomeAndAny() {
        
    }

    private function FormsOfVerbs() {
        
    }

    private function TheVerbToBe() {
        
    }

    private function SimplePresentTense() {
        
    }

    private function PresentConttinuousTense() {
        
    }

    private function PresentPerfectTense() {
        
    }

    private function SimplePastTense() {
        
    }

    private function PastContinuousTense() {
        
    }

    private function SimpleFutureAndGoingToForm() {
        
    }

    private function ConditionalIf() {
        
    }

    private function Adverbs() {
        
    }

    private function ComparisonOfAdverbs() {
        
    }

    private function JoiningSentences() {
        
    }

    private function Conjuctions() {
        
    }

    private function PositiveNegativeSentences() {
        
    }

    private function ShortForms() {
        
    }

    private function QuestionWords() {
        
    }

    private function QuestionTags() {
        
    }

    private function ShortAnswersReplies() {
        
    }

    private function Prepositions() {
        
    }

    private function Punctuation() {
        
    }

}

// 
// check to see if a question has been correct 10 time in a row and then perfere it less.
class Question_Engine_2 {

    public $QuestionArray;

    ////////////////////////////////////////////////////////////////////////////
    /// Construct and main entry point.
    ////////////////////////////////////////////////////////////////////////////
    // Construct Question_Engine inital values
    public function __construct($subject, $difficulty) {

        // Set QuestionArray array and subject as first value
        $this->QuestionArray = ['subjectMajor' => $subject];
        // Add difficulty to QuestionArray
        $this->QuestionArray['difficulty'] = $difficulty;
    }

    // Main entry point to the question generator.
    public function generate() {
        $tmp = ['test' => $this->generalKnowledge(),];
        $tmp['test'];
        // Call sub question generator for major subject
        switch ($this->subject) {
            // Call question fetcher directly as there is no sub sections
            case "general":
                $this->generalKnowledge();
                break;
            // Call sub generate to select a minor subject
            case "math":
                $this->subGenerateMath();
                break;
            case "math":
                $this->subGenerateMath();
                break;
            case "math":
                $this->subGenerateMath();
                break;
            case "math":
                $this->subGenerateMath();
                break;
            case "math":
                $this->subGenerateMath();
                break;
            case "math":
                $this->subGenerateMath();
                break;
            case "math":
                $this->subGenerateMath();
                break;
            case "math":
                $this->subGenerateMath();
                break;
        }
//         'english' => 0,
//            'pePd' => 0, //health-and-physical-education
//            'socialStudies' => 0, //humanities-and-social-sciences
//            'languages' => 0,
//            'science' => 0,
//            'technologies' => 0,
//            'art' => 0,
        // Debug line TODO remove once tested.
        print_a(['subject' => $this->subject, 'difficulty' => $this->difficulty]);
    }

    ////////////////////////////////////////////////////////////////////////////
    /// Sub generate functions for minor subjects
    ////////////////////////////////////////////////////////////////////////////
    //
    private function subGenerateMath() {

        switch ($this->subject) {
            case $value:


                break;

            default:
                break;
        }
        print_a(['subject' => $this->subject, 'difficulty' => $this->difficulty]);
    }

    ////////////////////////////////////////////////////////////////////////////
    /// Raw question fetchers
    ////////////////////////////////////////////////////////////////////////////
    // Fetch and return question from DB questions
    private function generalKnowledge() {
        //array_rand($array);
    }

    //english (spelling)
    //english (syntax)
    //english (comprehention)

    private function math() {
        
    }

    private function mathGeneral() {
        
    }

    private function mathUnits() {
        
    }

    //science
    //technolegy
    //geography
    //
}