got basic question and answer creation from canvas

2026-03-25 23:28:33 -06:00 · 2023-08-17 18:50:59 -06:00
parent 4fb257e000
commit 28ad344018
18 changed files with 604 additions and 204 deletions
--- a/Management/Services/Canvas/CanvasQuizService.cs
+++ b/Management/Services/Canvas/CanvasQuizService.cs
@@ -0,0 +1,126 @@
+using CanvasModel.Quizzes;
+using LocalModels;
+using RestSharp;
+
+namespace Management.Services.Canvas;
+
+public class CanvasQuizService
+{
+  private readonly IWebRequestor webRequestor;
+  private readonly CanvasServiceUtils utils;
+
+  public CanvasQuizService(IWebRequestor webRequestor, CanvasServiceUtils utils)
+  {
+    this.webRequestor = webRequestor;
+    this.utils = utils;
+  }
+
+  public async Task<IEnumerable<CanvasQuiz>> GetAll(ulong courseId)
+  {
+    var url = $"courses/{courseId}/quizzes";
+    var request = new RestRequest(url);
+    var quizResponse = await utils.PaginatedRequest<IEnumerable<CanvasQuiz>>(request);
+    return quizResponse.SelectMany(
+      quizzes =>
+        quizzes.Select(
+          a => a with { DueAt = a.DueAt?.ToLocalTime(), LockAt = a.LockAt?.ToLocalTime() }
+        )
+    );
+  }
+
+  public async Task<LocalQuiz> Create(ulong canvasCourseId, LocalQuiz localQuiz)
+  {
+    Console.WriteLine($"Creating Quiz ${localQuiz.Name}");
+
+    var url = $"courses/{canvasCourseId}/quizzes";
+    var body = new
+    {
+      quiz = new
+      {
+        title = localQuiz.Name,
+        description = localQuiz.Description,
+        // assignment_group_id = "quiz", TODO: support specific assignment groups
+        time_limit = localQuiz.TimeLimit,
+        shuffle_answers = localQuiz.ShuffleAnswers,
+        hide_results = localQuiz.HideResults,
+        allowed_attempts = localQuiz.AllowedAttempts,
+        one_question_at_a_time = true,
+        cant_go_back = false,
+        due_at = localQuiz.DueAt,
+        lock_at = localQuiz.LockAt,
+      }
+    };
+    var request = new RestRequest(url);
+    request.AddBody(body);
+    var (canvasQuiz, response) = await webRequestor.PostAsync<CanvasQuiz>(request);
+    if (canvasQuiz == null)
+      throw new Exception("Created canvas quiz was null");
+
+
+    var updatedQuiz = localQuiz with { CanvasId = canvasQuiz.Id };
+    var quizWithQuestions = await CreateQuizQuestions(canvasCourseId, updatedQuiz);
+
+
+    return quizWithQuestions;
+  }
+
+  public async Task<LocalQuiz> CreateQuizQuestions(ulong canvasCourseId, LocalQuiz localQuiz)
+  {
+    var tasks = localQuiz.Questions
+      .Select(
+        async (question) =>
+        {
+          var newQuestion = await createQuestionOnly(canvasCourseId, localQuiz, question);
+
+          var answersWithIds = question.Answers
+            .Select(answer =>
+            {
+              var canvasAnswer = newQuestion.Answers?.FirstOrDefault(ca => ca.Html == answer.Text);
+              if (canvasAnswer == null)
+              {
+                Console.WriteLine(JsonSerializer.Serialize(newQuestion));
+                Console.WriteLine(JsonSerializer.Serialize(question));
+                throw new NullReferenceException(
+                  "Could not find canvas answer to update local answer id"
+                );
+              }
+              return answer with { CanvasId = canvasAnswer.Id };
+            })
+            .ToArray();
+          return question with { CanvasId = newQuestion.Id, Answers = answersWithIds };
+        }
+      )
+      .ToArray();
+    var updatedQuestions = await Task.WhenAll(tasks);
+    return localQuiz with { Questions = updatedQuestions };
+  }
+
+  private async Task<CanvasQuizQuestion> createQuestionOnly(
+    ulong canvasCourseId,
+    LocalQuiz localQuiz,
+    LocalQuizQuestion q
+  )
+  {
+    var url = $"courses/{canvasCourseId}/quizzes/{localQuiz.CanvasId}/questions";
+    var answers = q.Answers
+      .Select(a => new { answer_html = a.Text, answer_weight = a.Correct ? 100 : 0 })
+      .ToArray();
+    var body = new
+    {
+      question = new
+      {
+        question_text = q.Text,
+        question_type = q.QuestionType+"_question",
+        possible_points = q.Points,
+        // position
+        answers
+      }
+    };
+    var request = new RestRequest(url);
+    request.AddBody(body);
+    var (newQuestion, response) = await webRequestor.PostAsync<CanvasQuizQuestion>(request);
+    if (newQuestion == null)
+      throw new NullReferenceException("error creating new question, created question is null");
+    return newQuestion;
+  }
+}