package pt.utl.ist.scripts.runOnce;

import java.io.PrintWriter;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import net.sourceforge.fenixedu.domain.CurricularCourse;
import net.sourceforge.fenixedu.domain.DegreeCurricularPlan;
import net.sourceforge.fenixedu.domain.ExecutionDegree;
import net.sourceforge.fenixedu.domain.ExecutionYear;
import net.sourceforge.fenixedu.domain.degree.DegreeType;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import pt.utl.ist.scripts.commons.AtomicScript;
import pt.utl.ist.scripts.domain.DegreeTranslation;

public class CurricularCourseWeigth0506Info extends AtomicScript {

    private static final String FILE_NAME = "disciplinas.xml";

    private static PrintWriter writer;

    public static void main(String[] args) {
        processWriteTransaction(new CurricularCourseWeigth0506Info());
        System.exit(0);
    }

    @Override
    protected void run() throws Exception {
        writer = new PrintWriter(IMPORT_DIR_PATH + "/" + "cc0506NotFound.csv");
        Map<String, Double> courseMap = parseFile();
        final ExecutionYear executionYear = ExecutionYear.readExecutionYearByName("2005/2006");
        for (final ExecutionDegree executionDegree : executionYear.getExecutionDegrees()) {
            if (executionDegree.getDegreeCurricularPlan().getDegree().getDegreeType() == DegreeType.DEGREE) {
                logger.info("[BEGIN: " + executionDegree.getDegreeCurricularPlan().getName() + "]");
                processCourses(executionDegree.getDegreeCurricularPlan(), executionYear, courseMap);
                logger.info("[END: " + executionDegree.getDegreeCurricularPlan().getName() + "]");
            }
        }
        writer.flush();
        writer.close();
    }

    private void processCourses(final DegreeCurricularPlan degreeCurricularPlan, final ExecutionYear executionYear,
            final Map<String, Double> courseMap) {
        for (final CurricularCourse curricularCourse : degreeCurricularPlan.getCurricularCoursesSet()) {
            if (curricularCourse.hasAnyActiveDegreModuleScope(executionYear)) {
                final String key =
                        degreeCurricularPlan.getDegree().getExternalId() + "|" + curricularCourse.getCode() + "|" + "2005";
                final Double weigth = courseMap.get(key);
                if (weigth != null) {
                    curricularCourse.setWeigth(weigth);
                } else {
                    final String error = degreeCurricularPlan.getDegree().getExternalId() + "\t" + curricularCourse.getCode();
                    logger.info(error);
                    writer.println(error);
                }
            }
        }

    }

    private Map<String, Double> parseFile() throws DocumentException {
        Map<String, Double> courseMap = new HashMap<String, Double>();

        SAXReader reader = new SAXReader();
        Document document = reader.read(IMPORT_DIR_PATH + "/" + FILE_NAME);

        Element rootElement = document.getRootElement();
        for (Element disciplinaElement : (List<Element>) rootElement.elements("Disciplina")) {
            try {
                Integer codCurso =
                        Integer.valueOf(DegreeTranslation.translateToFenixCode(disciplinaElement.elementTextTrim("Codcur")));
                String code = disciplinaElement.elementTextTrim("Coddis");
                String year = disciplinaElement.elementTextTrim("Anolec");
                Double peso = Double.valueOf(disciplinaElement.elementTextTrim("Peso"));
                StringBuilder key = new StringBuilder();
                key.append(codCurso).append("|").append(code).append("|").append(year);
                courseMap.put(key.toString(), peso);
            } catch (IllegalArgumentException e) {
                logger.info(e.getMessage());
            }
        }

        return courseMap;
    }

}