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package com.jetbrains.python.edu.ui;
import com.intellij.facet.ui.FacetValidatorsManager;
import com.intellij.facet.ui.ValidationResult;
import com.intellij.icons.AllIcons;
import com.intellij.openapi.fileChooser.FileChooser;
import com.intellij.openapi.fileChooser.FileChooserDescriptor;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.util.Consumer;
import com.jetbrains.python.edu.StudyDirectoryProjectGenerator;
import com.jetbrains.python.edu.StudyUtils;
import com.jetbrains.python.edu.course.CourseInfo;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
* author: liana
* data: 7/31/14.
*/
public class StudyNewProjectPanel{
private Set<CourseInfo> myAvailableCourses = new HashSet<CourseInfo>();
private JComboBox myCoursesComboBox;
private JButton myBrowseButton;
private JButton myRefreshButton;
private JPanel myContentPanel;
private JLabel myAuthorLabel;
private JLabel myDescriptionLabel;
private JLabel myLabel;
private final StudyDirectoryProjectGenerator myGenerator;
private static final String CONNECTION_ERROR = "<html>Failed to download courses.<br>Check your Internet connection.</html>";
private static final String INVALID_COURSE = "Selected course is invalid";
private FacetValidatorsManager myValidationManager;
public StudyNewProjectPanel(StudyDirectoryProjectGenerator generator) {
myGenerator = generator;
Map<CourseInfo, File> courses = myGenerator.getCourses();
if (courses.isEmpty()) {
setError(CONNECTION_ERROR);
}
else {
myAvailableCourses = courses.keySet();
for (CourseInfo courseInfo : myAvailableCourses) {
myCoursesComboBox.addItem(courseInfo);
}
myAuthorLabel.setText("Author: " + StudyUtils.getFirst(myAvailableCourses).getAuthor());
myDescriptionLabel.setText(StudyUtils.getFirst(myAvailableCourses).getDescription());
//setting the first course in list as selected
myGenerator.setSelectedCourse(StudyUtils.getFirst(myAvailableCourses));
setOK();
}
initListeners();
myRefreshButton.setVisible(true);
myRefreshButton.setIcon(AllIcons.Actions.Refresh);
myLabel.setPreferredSize(new JLabel("Project name").getPreferredSize());
}
private void initListeners() {
final FileChooserDescriptor fileChooser = new FileChooserDescriptor(true, false, false, true, false, false) {
@Override
public boolean isFileVisible(VirtualFile file, boolean showHiddenFiles) {
return file.isDirectory() || StudyUtils.isZip(file.getName());
}
@Override
public boolean isFileSelectable(VirtualFile file) {
return StudyUtils.isZip(file.getName());
}
};
myBrowseButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
FileChooser.chooseFile(fileChooser, null, null,
new Consumer<VirtualFile>() {
@Override
public void consume(VirtualFile file) {
String fileName = file.getPath();
int oldSize = myAvailableCourses.size();
CourseInfo courseInfo = myGenerator.addLocalCourse(fileName);
if (courseInfo != null) {
if (oldSize != myAvailableCourses.size()) {
myCoursesComboBox.addItem(courseInfo);
}
myCoursesComboBox.setSelectedItem(courseInfo);
setOK();
}
else {
setError(INVALID_COURSE);
myCoursesComboBox.removeAllItems();
myCoursesComboBox.addItem(CourseInfo.INVALID_COURSE);
for (CourseInfo course : myAvailableCourses) {
myCoursesComboBox.addItem(course);
}
myCoursesComboBox.setSelectedItem(CourseInfo.INVALID_COURSE);
}
}
});
}
});
myRefreshButton.addActionListener(new RefreshActionListener());
myCoursesComboBox.addActionListener(new CourseSelectedListener());
}
private void setError(String errorMessage) {
myGenerator.setValidationResult(new ValidationResult(errorMessage));
if (myValidationManager != null) {
myValidationManager.validate();
}
}
private void setOK() {
myGenerator.setValidationResult(ValidationResult.OK);
if (myValidationManager != null) {
myValidationManager.validate();
}
}
public JPanel getContentPanel() {
return myContentPanel;
}
public void registerValidators(final FacetValidatorsManager manager) {
myValidationManager = manager;
}
/**
* Handles refreshing courses
* Old courses added to new courses only if their
* meta file still exists in local file system
*/
private class RefreshActionListener implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
myGenerator.downloadAndUnzip(true);
Map<CourseInfo, File> downloadedCourses = myGenerator.loadCourses();
if (downloadedCourses.isEmpty()) {
setError(CONNECTION_ERROR);
return;
}
Map<CourseInfo, File> oldCourses = myGenerator.getLoadedCourses();
Map<CourseInfo, File> newCourses = new HashMap<CourseInfo, File>();
for (Map.Entry<CourseInfo, File> course : oldCourses.entrySet()) {
File courseFile = course.getValue();
if (courseFile.exists()) {
newCourses.put(course.getKey(), courseFile);
}
}
for (Map.Entry<CourseInfo, File> course : downloadedCourses.entrySet()) {
CourseInfo courseName = course.getKey();
if (newCourses.get(courseName) == null) {
newCourses.put(courseName, course.getValue());
}
}
myCoursesComboBox.removeAllItems();
for (CourseInfo courseInfo : newCourses.keySet()) {
myCoursesComboBox.addItem(courseInfo);
}
myGenerator.setSelectedCourse(StudyUtils.getFirst(newCourses.keySet()));
myGenerator.setCourses(newCourses);
myAvailableCourses = newCourses.keySet();
myGenerator.flushCache();
}
}
/**
* Handles selecting course in combo box
* Sets selected course in combo box as selected in
* {@link StudyNewProjectPanel#myGenerator}
*/
private class CourseSelectedListener implements ActionListener {
@Override
public void actionPerformed(ActionEvent e) {
JComboBox cb = (JComboBox)e.getSource();
CourseInfo selectedCourse = (CourseInfo)cb.getSelectedItem();
if (selectedCourse == null || selectedCourse.equals(CourseInfo.INVALID_COURSE)) {
myAuthorLabel.setText("");
myDescriptionLabel.setText("");
return;
}
myAuthorLabel.setText("Author: " + selectedCourse.getAuthor());
myCoursesComboBox.removeItem(CourseInfo.INVALID_COURSE);
myDescriptionLabel.setText(selectedCourse.getDescription());
myGenerator.setSelectedCourse(selectedCourse);
setOK();
}
}
}
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