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package com.jetbrains.python.edu;
import com.intellij.ide.SaveAndSyncHandlerImpl;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.Presentation;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.fileEditor.FileDocumentManager;
import com.intellij.openapi.fileEditor.FileEditor;
import com.intellij.openapi.fileEditor.FileEditorManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.TextRange;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.vfs.VirtualFileManager;
import com.intellij.openapi.wm.ToolWindowManager;
import com.intellij.util.ui.UIUtil;
import com.jetbrains.python.edu.course.TaskFile;
import com.jetbrains.python.edu.course.TaskWindow;
import com.jetbrains.python.edu.editor.StudyEditor;
import com.jetbrains.python.edu.ui.StudyToolWindowFactory;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.io.*;
import java.util.Collection;
public class StudyUtils {
private static final Logger LOG = Logger.getInstance(StudyUtils.class.getName());
public static void closeSilently(Closeable stream) {
if (stream != null) {
try {
stream.close();
}
catch (IOException e) {
// close silently
}
}
}
public static boolean isZip(String fileName) {
return fileName.contains(".zip");
}
public static <T> T getFirst(Iterable<T> container) {
return container.iterator().next();
}
public static boolean indexIsValid(int index, Collection collection) {
int size = collection.size();
return index >= 0 && index < size;
}
@SuppressWarnings("IOResourceOpenedButNotSafelyClosed")
@Nullable
public static String getFileText(String parentDir, String fileName, boolean wrapHTML) {
File inputFile = parentDir !=null ? new File(parentDir, fileName) : new File(fileName);
if (!inputFile.exists()) return null;
StringBuilder taskText = new StringBuilder();
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(new FileInputStream(inputFile)));
String line;
while ((line = reader.readLine()) != null) {
taskText.append(line).append("\n");
if (wrapHTML) {
taskText.append("<br>");
}
}
return wrapHTML ? UIUtil.toHtml(taskText.toString()) : taskText.toString();
}
catch (IOException e) {
LOG.error("Failed to get file text from file " + fileName, e);
}
finally {
closeSilently(reader);
}
return null;
}
public static void updateAction(AnActionEvent e) {
Presentation presentation = e.getPresentation();
presentation.setEnabled(false);
Project project = e.getProject();
if (project != null) {
FileEditor[] editors = FileEditorManager.getInstance(project).getAllEditors();
for (FileEditor editor : editors) {
if (editor instanceof StudyEditor) {
presentation.setEnabled(true);
}
}
}
}
public static void updateStudyToolWindow(Project project) {
ToolWindowManager.getInstance(project).getToolWindow(StudyToolWindowFactory.STUDY_TOOL_WINDOW).getContentManager().removeAllContents(false);
StudyToolWindowFactory factory = new StudyToolWindowFactory();
factory.createToolWindowContent(project, ToolWindowManager.getInstance(project).getToolWindow(StudyToolWindowFactory.STUDY_TOOL_WINDOW));
}
public static void synchronize() {
FileDocumentManager.getInstance().saveAllDocuments();
SaveAndSyncHandlerImpl.refreshOpenFiles();
VirtualFileManager.getInstance().refreshWithoutFileWatcher(true);
}
/**
* Gets number index in directory names like "task1", "lesson2"
*
* @param fullName full name of directory
* @param logicalName part of name without index
* @return index of object
*/
public static int getIndex(@NotNull final String fullName, @NotNull final String logicalName) {
if (!fullName.contains(logicalName)) {
throw new IllegalArgumentException();
}
return Integer.parseInt(fullName.substring(logicalName.length())) - 1;
}
@SuppressWarnings("IOResourceOpenedButNotSafelyClosed")
public static VirtualFile flushWindows(Document document, TaskFile taskFile, VirtualFile file) {
VirtualFile taskDir = file.getParent();
VirtualFile fileWindows = null;
if (taskDir != null) {
String name = file.getNameWithoutExtension() + "_windows";
PrintWriter printWriter = null;
try {
fileWindows = taskDir.createChildData(taskFile, name);
printWriter = new PrintWriter(new FileOutputStream(fileWindows.getPath()));
for (TaskWindow taskWindow : taskFile.getTaskWindows()) {
if (!taskWindow.isValid(document)) {
continue;
}
int start = taskWindow.getRealStartOffset(document);
String windowDescription = document.getText(new TextRange(start, start + taskWindow.getLength()));
printWriter.println("#study_plugin_window = " + windowDescription);
}
}
catch (IOException e) {
LOG.error(e);
}
finally {
closeSilently(printWriter);
synchronize();
}
}
return fileWindows;
}
}
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