fun joinCourse()

in intellij-plugin/educational-core/src/com/jetbrains/edu/learning/newproject/ui/CoursesPlatformProvider.kt [72:112]

33 lines of code
7 McCabe index (conditional complexity)


    fun joinCourse(
      courseInfo: CourseCreationInfo,
      courseMode: CourseMode,
      component: JPanel?,
      openCourseParams: Map<String, String> = emptyMap(),
      errorHandler: (ErrorState) -> Unit
    ): Project? {
      val (course, location, projectSettings) = courseInfo

      // location is null for course preview dialog only
      if (location == null) {
        return null
      }

      val configurator = course.configurator
      // If `configurator != null` than `projectSettings` is always not null
      // because project settings are produced by configurator itself
      if (configurator != null && projectSettings != null) {
        try {
          configurator.beforeCourseStarted(course)

          if (component != null) {
            val dialog = UIUtil.getParentOfType(DialogWrapperDialog::class.java, component)
            dialog?.dialogWrapper?.close(DialogWrapper.OK_EXIT_CODE)
          }
          course.courseMode = courseMode
          val projectGenerator = configurator.courseBuilder.getCourseProjectGenerator(course)
          val project = projectGenerator?.doCreateCourseProject(location, projectSettings, openCourseParams = openCourseParams)
          // null project means that user hasn't created course project at all.
          // For example, he/she may choose `Don't Open` option in `Trust and Open Project` dialog
          if (project != null) {
            CoursesStorage.getInstance().addCourse(course, location)
          }
          return project
        }
        catch (e: CourseCantBeStartedException) {
          errorHandler(e.error)
        }
      }
      return null
    }