private async Task TryInitialExportCourse(Course course, CourseInitialExportOptions exportOptions, CourseExportResults results)
{
var stepikCourse = await client.GetCourse(exportOptions.StepikCourseId).ConfigureAwait(false);
results.StepikCourseTitle = stepikCourse.Title;
await ClearCourse(stepikCourse).ConfigureAwait(false);
var unitIndex = 0;
foreach (var unit in course.Units)
{
results.Info($"Converting ulearn unit «{unit.Title}» into stepik section");
var section = ConvertUlearnUnitIntoStepikSection(unit);
section.CourseId = exportOptions.StepikCourseId;
section.Position = ++unitIndex;
section = await client.UploadSection(section).ConfigureAwait(false);
if (!section.Id.HasValue)
{
throw new StepikApiException($"Didn't receive `section`'s ID from stepik: {section.JsonSerialize()}");
}
var currentStepikLessonId = -1;
var blockIndex = 0;
var lessonIndex = 0;
var isFirstSlideInUnit = true;
foreach (var slide in unit.Slides)
{
results.Info($"Converting ulearn slide «{slide.Title}» with id {slide.Id} into stepik steps");
var needToStartNewLesson = isFirstSlideInUnit || exportOptions.SlideIdsWhereNewLessonsStart.Contains(slide.Id);
isFirstSlideInUnit = false;
if (needToStartNewLesson)
{
results.Info("Starting new stepik lesson for this slide");
var lesson = await client.UploadLesson(new StepikApiLesson
{
Title = slide.Title
}).ConfigureAwait(false);
if (!lesson.Id.HasValue)
{
throw new StepikApiException($"Didn't receive `lesson`'s ID from stepik: {lesson.JsonSerialize()}");
}
currentStepikLessonId = lesson.Id.Value;
await client.UploadUnit(new StepikApiUnit
{
Position = ++lessonIndex,
SectionId = section.Id.Value,
LessonId = currentStepikLessonId,
}).ConfigureAwait(false);
blockIndex = 0;
}
blockIndex += await InsertSlideAsStepsInLesson(course, slide, currentStepikLessonId, blockIndex, exportOptions, results).ConfigureAwait(false);
}
}
}
public async Task <CourseExportResults> InitialExportCourse(Course course, CourseInitialExportOptions exportOptions)
{
var results = new CourseExportResults(course.Id, exportOptions.StepikCourseId);
try
{
await TryInitialExportCourse(course, exportOptions, results);
}
catch (Exception e)
{
results.Error(e.Message);
results.Exception = e;
}
return(results);
}