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package com.jetbrains.python.edu.course;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.util.xmlb.annotations.Transient;
import org.jetbrains.annotations.NotNull;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class Lesson implements Stateful{
public String name;
public List<Task> taskList = new ArrayList<Task>();
private Course myCourse = null;
public int myIndex = -1;
public static final String LESSON_DIR = "lesson";
public LessonInfo myLessonInfo = new LessonInfo();
public LessonInfo getLessonInfo() {
return myLessonInfo;
}
@Transient
public StudyStatus getStatus() {
for (Task task : taskList) {
StudyStatus taskStatus = task.getStatus();
if (taskStatus == StudyStatus.Unchecked || taskStatus == StudyStatus.Failed) {
return StudyStatus.Unchecked;
}
}
return StudyStatus.Solved;
}
@Override
public void setStatus(StudyStatus status, StudyStatus oldStatus) {
for (Task task : taskList) {
task.setStatus(status, oldStatus);
}
}
public List<Task> getTaskList() {
return taskList;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
/**
* Creates lesson directory in its course folder in project user created
*
* @param courseDir project directory of course
* @param resourceRoot directory where original lesson stored
* @throws java.io.IOException
*/
public void create(@NotNull final VirtualFile courseDir, @NotNull final File resourceRoot) throws IOException {
String lessonDirName = LESSON_DIR + Integer.toString(myIndex + 1);
VirtualFile lessonDir = courseDir.createChildDirectory(this, lessonDirName);
for (int i = 0; i < taskList.size(); i++) {
Task task = taskList.get(i);
task.setIndex(i);
task.create(lessonDir, new File(resourceRoot, lessonDir.getName()));
}
}
/**
* Initializes state of lesson
*
* @param course course which lesson belongs to
*/
public void init(final Course course, boolean isRestarted) {
myCourse = course;
myLessonInfo.setTaskNum(taskList.size());
myLessonInfo.setTaskUnchecked(taskList.size());
for (Task task : taskList) {
task.init(this, isRestarted);
}
}
public Lesson next() {
List<Lesson> lessons = myCourse.getLessons();
if (myIndex + 1 >= lessons.size()) {
return null;
}
return lessons.get(myIndex + 1);
}
public void setIndex(int index) {
myIndex = index;
}
public int getIndex() {
return myIndex;
}
public Lesson prev() {
if (myIndex - 1 < 0) {
return null;
}
return myCourse.getLessons().get(myIndex - 1);
}
}
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