package edu.rutgers.elearning.component.italian.pte;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Random;

import edu.rutgers.elearning.component.pte.ProblemTemplateEngine;
import edu.rutgers.elearning.component.pte.ProblemTemplateEngine.QuestionType;
import edu.rutgers.elearning.component.questions.DecimalQuestionAnswer;
import edu.rutgers.elearning.component.questions.GeneratedQuestion;
import edu.rutgers.elearning.component.questions.OpenMultifieldQuestion;
import edu.rutgers.elearning.component.questions.QuestionAnswer;
import edu.rutgers.elearning.component.questions.StringQuestionAnswer;
import edu.rutgers.elearning.component.questions.OpenMultifieldQuestion.AnswerField;
import edu.rutgers.elearning.genchem.chem.CompoundElements;
import edu.rutgers.elearning.genchem.chem.CompoundElements.Element;
import edu.rutgers.elearning.genchem.dao.CompoundsDAO;
import edu.rutgers.elearning.genchem.model.CompoundsModel;
import edu.rutgers.elearning.util.math.SigfigNumber;

/**
 * PTE ID = 640
 * Template Name = Italian placement test part 4 question 1
 *
 * @author Travis Harrell
 */
public class ItalianPlacementTestPart4P1 extends ProblemTemplateEngine
{
	Random rand = new Random();

	CompoundElements compound;
	ArrayList<CompoundsModel> compoundModels;
	Element element1;
	Element element2;

	static String[] types = new String[2];
	static
	{
		types[0] = "IONIC";
		types[1] = "COVALENT";
	}

	SigfigNumber mass1;
	SigfigNumber mass2;

	public ItalianPlacementTestPart4P1(int problemtemplate_id, int[] criticalskill_ids, int debugmode, QuestionType type)
	{
		super(problemtemplate_id, criticalskill_ids, debugmode, type);

		CompoundsDAO compoundsDAO = new CompoundsDAO();
		HashMap<String, Object> searchMap = new HashMap<String, Object>();
		List<Element> elements;

		do
		{
			searchMap.put("number_of_elements", 2);
			searchMap.put("compound_type", types);

			compoundModels = (ArrayList<CompoundsModel>) compoundsDAO.selectAs(searchMap);
			compound = new CompoundElements(compoundModels.get(rand.nextInt(compoundModels.size())));

			elements = compound.getElements();
		}while(elements.size() != 2);//shouldnt matter but just in case

		element1 = elements.get(0);
		element2 = elements.get(1);

		mass1 = SigfigNumber.random(10.0, 99.0, 3);
		mass2 = (mass1.div(element1.getAtomic_weight())).mult(((double)element2.getCount()/(double)element1.getCount())).mult(element2.getAtomic_weight());
	}

	public String getQuestionText()
	{
		String question = null;

		question = "If you have a sample of a compound that contains " + mass1.toStringMaybeSciNotation() + " g of " + element1.getPeriodic_symbol()
				+ " and " + mass2.toStringMaybeSciNotation() + " g of " + element2.getPeriodic_symbol() + ". What is the percent mass of " + element1.getPeriodic_symbol()
				+ " in the sample? What is the percent mass of " + element2.getPeriodic_symbol() + " in the sample? How many moles of " + element1.getPeriodic_symbol()
				+ " and " + element2.getPeriodic_symbol() + " do you have? What is the empirical formula?";

		return question;
	}

	public List<AnswerField> getMultiboxFields()
	{
		ArrayList<AnswerField> fields = new ArrayList<>();

		SigfigNumber answer1 = (element1.getAtomic_weight().mult(element1.getCount())).div(compound.getMolarmass());
		SigfigNumber answer2 = (element2.getAtomic_weight().mult(element2.getCount())).div(compound.getMolarmass());
		SigfigNumber answer3 = mass1.div(element1.getAtomic_weight());
		SigfigNumber answer4 = mass2.div(element2.getAtomic_weight());

		String answer5 = compound.getFormula();//update with string parser
		if(compound.getCompound_id() == 148 || compound.getCompound_id() == 346)
		{
			answer5 = "HO";
		}

		DecimalQuestionAnswer answer1DecimalQuestion = new DecimalQuestionAnswer(1, "correct", answer1.doubleValue()-0.01, answer1.doubleValue()+0.01, answer1.toStringWithoutSciNotation());
		DecimalQuestionAnswer answer2DecimalQuestion = new DecimalQuestionAnswer(1, "correct", answer2.doubleValue()-0.01, answer2.doubleValue()+0.01, answer2.toStringWithoutSciNotation());
		DecimalQuestionAnswer answer3DecimalQuestion = new DecimalQuestionAnswer(1, "correct", answer3.doubleValue()-0.01, answer3.doubleValue()+0.01, answer3.toStringWithoutSciNotation());
		DecimalQuestionAnswer answer4DecimalQuestion = new DecimalQuestionAnswer(1, "correct", answer4.doubleValue()-0.01, answer4.doubleValue()+0.01, answer4.toStringWithoutSciNotation());
		StringQuestionAnswer answer5StringQuestion = new StringQuestionAnswer(1, "correct", answer5, false);

		AnswerField field1 = new AnswerField("Mass % of " + element1.getPeriodic_symbol() + ": ", answer1DecimalQuestion, " %", "answer1");
		AnswerField field2 = new AnswerField("Mass % of " + element2.getPeriodic_symbol() + ": ", answer2DecimalQuestion, " %", "answer1");
		AnswerField field3 = new AnswerField("Moles of " + element1.getPeriodic_symbol() + ": ", answer3DecimalQuestion, " mol", "answer1");
		AnswerField field4 = new AnswerField("Moles of " + element2.getPeriodic_symbol() + ": ", answer4DecimalQuestion, " mol", "answer1");
		AnswerField field5 = new AnswerField("Empirical Formula: ", answer5StringQuestion, "", "answer1");

		fields.add(field1);
		fields.add(field2);
		fields.add(field3);
		fields.add(field4);
		fields.add(field5);

		return fields;
	}

	@Override
	public GeneratedQuestion serveQuestion()
	{
		GeneratedQuestion gq = null;
		if (type == QuestionType.MULTIFIELD) {
			OpenMultifieldQuestion omq = new OpenMultifieldQuestion();
			omq.setFieldsPrefix("");
			omq.setFieldsPostfix("");
			omq.appendFields(getMultiboxFields());
			gq = omq;
		}
		if (gq != null) {
			gq.setQuestion_text(getQuestionText());
			gq.loadMetadata(problemtemplate_id);
			gq.setVersion(storeVersion());
		}
		return gq;
	}

	public String storeVersion()
	{
		HashMap<String, Object> dataMap = new HashMap<String, Object>();
		dataMap.put("compound ", compound.getFormula());
		dataMap.put("element1 ", element1.getPeriodic_symbol());
		dataMap.put("element2 ", element2.getPeriodic_symbol());
		dataMap.put("mass1 ", mass1.toStringMaybeSciNotation());
		dataMap.put("mass2 ", mass2.toStringMaybeSciNotation());

		return dataMap.toString();
	}

	@Override
	public String getDebugInfo() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public List<QuestionAnswer> getMultipleChoiceAnswers() {
		// TODO Auto-generated method stub
		return null;
	}
}