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package org.netbeans.modules.php.phpunit;

import java.io.File;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.netbeans.modules.php.api.editor.PhpType;
import org.netbeans.modules.php.api.phpmodule.PhpModule;
import org.netbeans.modules.php.phpunit.commands.PhpUnit;
import org.netbeans.modules.php.phpunit.coverage.CoverageProvider;
import org.netbeans.modules.php.phpunit.create.TestCreator;
import org.netbeans.modules.php.phpunit.locate.PhpUnitTestLocator;
import org.netbeans.modules.php.phpunit.preferences.PhpUnitPreferences;
import org.netbeans.modules.php.phpunit.run.TestRunner;
import org.netbeans.modules.php.phpunit.ui.customizer.PhpUnitCustomizer;
import org.netbeans.modules.php.spi.testing.locate.Locations;
import org.netbeans.modules.php.spi.testing.PhpTestingProvider;
import org.netbeans.modules.php.spi.testing.create.CreateTestsResult;
import org.netbeans.modules.php.spi.testing.locate.TestLocator;
import org.netbeans.modules.php.spi.testing.run.TestRunException;
import org.netbeans.modules.php.spi.testing.run.TestRunInfo;
import org.netbeans.modules.php.spi.testing.run.TestSession;
import org.netbeans.spi.project.ui.support.ProjectCustomizer;
import org.openide.filesystems.FileObject;
import org.openide.filesystems.FileUtil;
import org.openide.util.NbBundle;

/**
 * Testing provider for PhpUnit.
 */
public final class PhpUnitTestingProvider implements PhpTestingProvider {

    public static final String IDENTIFIER = "PhpUnit"; // NOI18N

    private static final PhpUnitTestingProvider INSTANCE = new PhpUnitTestingProvider();


    @PhpTestingProvider.Registration(position=100)
    public static PhpUnitTestingProvider getInstance() {
        return INSTANCE;
    }

    @Override
    public String getIdentifier() {
        return IDENTIFIER;
    }

    @NbBundle.Messages("PhpUnitTestingProvider.name=PHPUnit")
    @Override
    public String getDisplayName() {
        return Bundle.PhpUnitTestingProvider_name();
    }

    @Override
    public boolean isTestFile(PhpModule phpModule, FileObject fileObj) {
        if (!PhpUnit.isTestFile(fileObj.getNameExt())) {
            return false;
        }
        for (FileObject testDirectory : phpModule.getTestDirectories()) {
            if (FileUtil.isParentOf(testDirectory, fileObj)) {
                return true;
            }
        }
        if (!PhpUnitPreferences.getRunAllTestFiles(phpModule)) {
            return false;
        }
        FileObject sourceDirectory = phpModule.getSourceDirectory();
        return sourceDirectory != null
                && FileUtil.isParentOf(sourceDirectory, fileObj);
    }

    @Override
    public boolean isTestCase(PhpModule phpModule, PhpType.Method method) {
        if (!PhpUnit.isTestClass(method.getPhpType().getName())) {
            return false;
        }
        return PhpUnit.isTestMethod(method.getName());
    }

    @Override
    public CreateTestsResult createTests(PhpModule phpModule, List<FileObject> files, Map<String, Object> configurationPanelProperties) {
        return new TestCreator(phpModule).createTests(files);
    }

    @Override
    public void runTests(PhpModule phpModule, TestRunInfo runInfo, TestSession testSession) throws TestRunException {
        new TestRunner(phpModule).runTests(runInfo, testSession);
        if (runInfo.isCoverageEnabled()) {
            testSession.setCoverage(new CoverageProvider().getCoverage());
        }
    }

    @Override
    public TestLocator getTestLocator(PhpModule phpModule) {
        return new PhpUnitTestLocator(phpModule);
    }

    @Override
    public boolean isCoverageSupported(PhpModule phpModule) {
        return true;
    }

    @Override
    public Locations.Line parseFileFromOutput(String line) {
        Pattern[] patterns = new Pattern[] {
            PhpUnit.OUT_LINE_PATTERN,
            PhpUnit.ERR_LINE_PATTERN,
        };
        for (Pattern pattern : patterns) {
            Matcher matcher = pattern.matcher(line);
            if (matcher.matches()) {
                File file = new File(matcher.group(1));
                if (file.isFile()) {
                    FileObject fo = FileUtil.toFileObject(file);
                    assert fo != null;
                    return new Locations.Line(fo, Integer.parseInt(matcher.group(2)));
                }
            }
        }
        return null;
    }

    @Override
    public ProjectCustomizer.CompositeCategoryProvider createCustomizer(PhpModule phpModule) {
        return new PhpUnitCustomizer(phpModule);
    }

}
