package org.sonar.report.pdf;

import java.awt.Color;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Iterator;

import org.sonar.report.pdf.entity.Measures;
import org.sonar.report.pdf.entity.Project;

import com.lowagie.text.ChapterAutoNumber;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Font;
import com.lowagie.text.Image;
import com.lowagie.text.List;
import com.lowagie.text.ListItem;
import com.lowagie.text.Paragraph;
import com.lowagie.text.Phrase;
import com.lowagie.text.Rectangle;
import com.lowagie.text.Section;
import com.lowagie.text.pdf.PdfCell;
import com.lowagie.text.pdf.PdfPTable;

import java.net.URL;

/**
 * Concrete PDFReporter. Implements printPdfBody method.
 * This will be the way to extend PDFReport.
 */
public class SonarPDFReporter extends PDFReporter {

    private URL logo;
    private String projectKey;
    private String sonarUrl;

    private final static Font chapterFont = new Font(Font.TIMES_ROMAN, 18, Font.BOLD, Color.GRAY);
    private final static Font titleFont = new Font(Font.TIMES_ROMAN, 14, Font.BOLD, Color.GRAY);
    private final static Font footFont = new Font(Font.TIMES_ROMAN, 10, Font.BOLD, Color.GRAY);
    private final static Font normalFont = new Font(Font.TIMES_ROMAN, 12, Font.BOLD, Color.BLACK);
    private final static Font monospaceFont = new Font(Font.COURIER, 12, Font.BOLD, Color.BLACK);
    private final static int indentation = 18;
    private final static int tablePaddingBottom = 5;

    private Document document;

    public SonarPDFReporter(URL logo, String projectKey, String sonarUrl) {
        this.logo = logo;
        this.projectKey = projectKey;
        this.sonarUrl = sonarUrl;
    }

    // TODO: include table of contents
    protected void addToc() {

    }

    @Override
    protected void printPdfBody(Document document) throws DocumentException, IOException, org.dom4j.DocumentException {
        this.document = document;
        // Chapter 1
        ChapterAutoNumber chapter1 = new ChapterAutoNumber(new Paragraph(getTextProperty("main.chapter1.title"),
                chapterFont));
        chapter1.add(new Paragraph(getTextProperty("main.chapter1.intro"), normalFont));
        // Section 1.1
        Section section11 = chapter1.addSection(new Paragraph(getTextProperty("main.chapter1.subtitle1"), titleFont));
        Project project = super.getProject();
        printDashboard(project, section11);
        // Section 1.2
        Section section12 = chapter1.addSection(new Paragraph(getTextProperty("main.chapter1.subtitle2"), titleFont));
        printProjectInfo(project, section12);

        document.add(chapter1);

        // Subprojects Chapters (2, 3, 4, ...)
        Iterator<Project> it = project.getSubprojects().iterator();
        while (it.hasNext()) {
            Project subproject = it.next();
            ChapterAutoNumber subprojectChapter = new ChapterAutoNumber(new Paragraph(getTextProperty("general.module")
                    + ": " + subproject.getName(), titleFont));
            Section sectionX1 = subprojectChapter.addSection(new Paragraph(
                    getTextProperty("main.chapter2.subtitle2X1"), titleFont));
            printDashboard(subproject, sectionX1);
            Section sectionX2 = subprojectChapter.addSection(new Paragraph(
                    getTextProperty("main.chapter2.subtitle2X2"), titleFont));
            printProjectInfo(subproject, sectionX2);
            document.add(subprojectChapter);
        }
    }

    private void printDashboard(Project project, Section section) throws DocumentException, IOException {
        PdfPTable dashboard = new PdfPTable(3);
        dashboard.getDefaultCell().setBorderColor(Color.WHITE);
        Font titleFont = new Font(Font.TIMES_ROMAN, 14, Font.BOLD, Color.BLACK);
        Font dataFont = new Font(Font.TIMES_ROMAN, 14, Font.BOLD, Color.GRAY);
        Font dataFont2 = new Font(Font.TIMES_ROMAN, 10, Font.BOLD, new Color(100,150,190));
        

        PdfPTable linesOfCode = new PdfPTable(1);
        linesOfCode.getDefaultCell().setBorderColor(Color.WHITE);
        linesOfCode.addCell(new Phrase(getTextProperty("general.lines_of_code"), titleFont));
        linesOfCode.addCell(new Phrase(project.getMeasureValue("ncss"), dataFont));
        linesOfCode.addCell(new Phrase(project.getMeasureValue("packages_count") + " packages", dataFont2));
        linesOfCode.addCell(new Phrase(project.getMeasureValue("classes_count") + " classes", dataFont2));
        linesOfCode.addCell(new Phrase(project.getMeasureValue("functions_count") + " methods", dataFont2));
        linesOfCode.addCell(new Phrase(project.getMeasureValue("duplicated_lines_ratio") + " duplicated lines", dataFont2));

        PdfPTable comments = new PdfPTable(1);
        comments.getDefaultCell().setBorderColor(Color.WHITE);
        comments.addCell(new Phrase(getTextProperty("general.comments"), titleFont));
        comments.addCell(new Phrase(project.getMeasureValue("comment_ratio"), dataFont));
        comments.addCell(new Phrase(project.getMeasureValue("comment_lines") + " comment lines", dataFont2));

        PdfPTable codeCoverage = new PdfPTable(1);
        codeCoverage.getDefaultCell().setBorderColor(Color.WHITE);
        codeCoverage.addCell(new Phrase(getTextProperty("general.test_count"), titleFont));
        codeCoverage.addCell(new Phrase(project.getMeasureValue("test_count"), dataFont));
        codeCoverage.addCell(new Phrase(project.getMeasureValue("test_success_percentage") + " success", dataFont2));
        codeCoverage.addCell(new Phrase(project.getMeasureValue("code_coverage") + " coverage", dataFont2));
        

        PdfPTable complexity = new PdfPTable(1);
        complexity.getDefaultCell().setBorderColor(Color.WHITE);
        complexity.addCell(new Phrase(getTextProperty("general.complexity"), titleFont));
        complexity.addCell(new Phrase(project.getMeasureValue("ccn_function"), dataFont));
        complexity.addCell(new Phrase(project.getMeasureValue("ccn_class") + " /class", dataFont2));
        complexity.addCell(new Phrase(project.getMeasureValue("ccn") + " decision points", dataFont2));

        PdfPTable rulesCompliance = new PdfPTable(1);
        rulesCompliance.getDefaultCell().setBorderColor(Color.WHITE);
        rulesCompliance.addCell(new Phrase(getTextProperty("general.rules_compliance"), titleFont));
        rulesCompliance.addCell(new Phrase(project.getMeasureValue("rules_compliance"), dataFont));

        PdfPTable violations = new PdfPTable(1);
        violations.getDefaultCell().setBorderColor(Color.WHITE);
        violations.addCell(new Phrase(getTextProperty("general.violations"), titleFont));
        violations.addCell(new Phrase(project.getMeasureValue("rules_violations"), dataFont));

        dashboard.addCell(linesOfCode);
        dashboard.addCell(comments);
        dashboard.addCell(codeCoverage);
        dashboard.addCell(complexity);
        dashboard.addCell(rulesCompliance);
        dashboard.addCell(violations);
        dashboard.setSpacingBefore(8);
        section.add(dashboard);
        Image ccnDistGraph = getCCNDistribution(project);
        if (ccnDistGraph != null) {
            section.add(ccnDistGraph);
            Paragraph imageFoot = new Paragraph(getTextProperty("metrics.ccn_classes_count_distribution"), footFont);
            imageFoot.setAlignment(Paragraph.ALIGN_CENTER);
            section.add(imageFoot);
        }
    }

    private void printMeasures(Measures measures, Section section) throws IOException, org.dom4j.DocumentException,
            DocumentException {

        PdfPTable versioningTable = new PdfPTable(2);
        formatTable(versioningTable);
        versioningTable.getDefaultCell().setColspan(2);
        versioningTable.addCell(new Phrase(super.getTextProperty("general.versioning_information"), titleFont));
        versioningTable.addCell(measures.getVersion());
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd - HH:mm:ss");
        versioningTable.addCell(df.format(measures.getDate()));

        PdfPTable measuresTable = new PdfPTable(2);
        formatTable(measuresTable);

        Iterator<String> it = measures.getMeasuresKeys().iterator();
        measuresTable.addCell(new Phrase(super.getTextProperty("general.metric"), titleFont));
        measuresTable.addCell(new Phrase(super.getTextProperty("general.value"), titleFont));
        boolean colorEnabled = true;
        while (it.hasNext()) {
            String measureKey = it.next();
            if (colorEnabled) {
                measuresTable.getDefaultCell().setGrayFill(0.9f);
                colorEnabled = false;
            } else {
                measuresTable.getDefaultCell().setGrayFill(1);
                colorEnabled = true;
            }
            if (!measureKey.equals("ccn_classes_count_distribution")
                    && !measureKey.equals("ccn_classes_percent_distribution")) {
                measuresTable.getDefaultCell().setHorizontalAlignment(PdfCell.ALIGN_LEFT);
                measuresTable.addCell(super.getTextProperty("metrics." + measureKey));
                measuresTable.getDefaultCell().setHorizontalAlignment(PdfCell.ALIGN_CENTER);
                measuresTable.addCell(measures.getMeasure(measureKey));
            }
        }
        measuresTable.setHeaderRows(1);
        section.add(versioningTable);
        section.add(measuresTable);

    }

    private void formatTable(PdfPTable table) {
        Rectangle page = document.getPageSize();
        table.getDefaultCell().setVerticalAlignment(PdfCell.ALIGN_MIDDLE);
        table.getDefaultCell().setPaddingBottom(tablePaddingBottom);
        table.getDefaultCell().setHorizontalAlignment(PdfCell.ALIGN_CENTER);
        table.setTotalWidth(page.getWidth() - document.leftMargin() - document.rightMargin());
        table.setSpacingBefore(20);
    }

    private void printProjectInfo(Project project, Section section) throws DocumentException, IOException,
            org.dom4j.DocumentException {
        List data = new List();
        data.add(new ListItem(super.getTextProperty("general.name") + ": " + project.getName()));
        data.add(new ListItem(super.getTextProperty("general.description") + ": " + project.getDescription()));
        data.add(new ListItem(super.getTextProperty("general.modules") + ": "));

        List sublist = new List();
        if (project.getSubprojects().size() != 0) {
            Iterator<Project> it = project.getSubprojects().iterator();
            while (it.hasNext()) {
                sublist.add(new ListItem(it.next().getName()));
            }
        } else {
            sublist.add(new ListItem(super.getTextProperty("general.no_modules")));
        }

        sublist.setIndentationLeft(indentation);
        data.add(sublist);
        section.add(data);
        printMeasures(project.getMeasures(), section);
    }

    @Override
    protected URL getLogo() {
        return this.logo;
    }

    @Override
    protected String getProjectKey() {
        return this.projectKey;
    }

    @Override
    protected String getSonarUrl() {
        return this.sonarUrl;
    }
}