adding feedback

src/features/local/quizzes/models/utils/quizQuestionMarkdownUtils.ts

@@ -14,6 +14,98 @@ const _validFirstAnswerDelimiters = [
 ];
 const _multipleChoicePrefix = ["a)", "*a)", "*)", ")"];
 const _multipleAnswerPrefix = ["[ ]", "[*]", "[]"];
+const _feedbackPrefixes = ["+", "-", "..."];
+
+const extractFeedback = (
+  linesWithoutPoints: string[]
+): {
+  correctComments?: string;
+  incorrectComments?: string;
+  neutralComments?: string;
+  linesWithoutFeedback: string[];
+} => {
+  let correctComments: string | undefined;
+  let incorrectComments: string | undefined;
+  let neutralComments: string | undefined;
+  const linesWithoutFeedback: string[] = [];
+
+  let currentFeedbackType: "+" | "-" | "..." | null = null;
+  let currentFeedbackLines: string[] = [];
+
+  for (const line of linesWithoutPoints) {
+    const trimmed = line.trim();
+
+    // Check if this is a new feedback line
+    if (trimmed.startsWith("+ ") || trimmed === "+") {
+      // Save previous feedback if any
+      if (currentFeedbackType && currentFeedbackLines.length > 0) {
+        const feedbackText = currentFeedbackLines.join("\n");
+        if (currentFeedbackType === "+") correctComments = feedbackText;
+        else if (currentFeedbackType === "-") incorrectComments = feedbackText;
+        else if (currentFeedbackType === "...") neutralComments = feedbackText;
+      }
+
+      currentFeedbackType = "+";
+      currentFeedbackLines = trimmed === "+" ? [] : [trimmed.substring(2)]; // Remove "+ " or handle standalone "+"
+    } else if (trimmed.startsWith("- ") || trimmed === "-") {
+      // Save previous feedback if any
+      if (currentFeedbackType && currentFeedbackLines.length > 0) {
+        const feedbackText = currentFeedbackLines.join("\n");
+        if (currentFeedbackType === "+") correctComments = feedbackText;
+        else if (currentFeedbackType === "-") incorrectComments = feedbackText;
+        else if (currentFeedbackType === "...") neutralComments = feedbackText;
+      }
+
+      currentFeedbackType = "-";
+      currentFeedbackLines = trimmed === "-" ? [] : [trimmed.substring(2)]; // Remove "- " or handle standalone "-"
+    } else if (trimmed.startsWith("... ") || trimmed === "...") {
+      // Save previous feedback if any
+      if (currentFeedbackType && currentFeedbackLines.length > 0) {
+        const feedbackText = currentFeedbackLines.join("\n");
+        if (currentFeedbackType === "+") correctComments = feedbackText;
+        else if (currentFeedbackType === "-") incorrectComments = feedbackText;
+        else if (currentFeedbackType === "...") neutralComments = feedbackText;
+      }
+
+      currentFeedbackType = "...";
+      currentFeedbackLines = trimmed === "..." ? [] : [trimmed.substring(4)]; // Remove "... " or handle standalone "..."
+    } else if (
+      currentFeedbackType &&
+      !_validFirstAnswerDelimiters.some((prefix) => trimmed.startsWith(prefix))
+    ) {
+      // This is a continuation of the current feedback
+      currentFeedbackLines.push(line);
+    } else {
+      // Save any pending feedback
+      if (currentFeedbackType && currentFeedbackLines.length > 0) {
+        const feedbackText = currentFeedbackLines.join("\n");
+        if (currentFeedbackType === "+") correctComments = feedbackText;
+        else if (currentFeedbackType === "-") incorrectComments = feedbackText;
+        else if (currentFeedbackType === "...") neutralComments = feedbackText;
+        currentFeedbackType = null;
+        currentFeedbackLines = [];
+      }
+
+      // This is a regular line
+      linesWithoutFeedback.push(line);
+    }
+  }
+
+  // Save any remaining feedback
+  if (currentFeedbackType && currentFeedbackLines.length > 0) {
+    const feedbackText = currentFeedbackLines.join("\n");
+    if (currentFeedbackType === "+") correctComments = feedbackText;
+    else if (currentFeedbackType === "-") incorrectComments = feedbackText;
+    else if (currentFeedbackType === "...") neutralComments = feedbackText;
+  }
+
+  return {
+    correctComments,
+    incorrectComments,
+    neutralComments,
+    linesWithoutFeedback,
+  };
+};
 
 const getAnswerStringsWithMultilineSupport = (
   linesWithoutPoints: string[],
@@ -153,6 +245,18 @@ export const quizQuestionMarkdownUtils = {
         ? question.matchDistractors?.map((d) => `\n^ - ${d}`).join("") ?? ""
         : "";
 
+    // Build feedback lines
+    let feedbackText = "";
+    if (question.correctComments) {
+      feedbackText += `+ ${question.correctComments}\n`;
+    }
+    if (question.incorrectComments) {
+      feedbackText += `- ${question.incorrectComments}\n`;
+    }
+    if (question.neutralComments) {
+      feedbackText += `... ${question.neutralComments}\n`;
+    }
+
     const answersText = answerArray.join("\n");
     const questionTypeIndicator =
       question.questionType === "essay" ||
@@ -162,7 +266,7 @@ export const quizQuestionMarkdownUtils = {
         ? `\n${QuestionType.SHORT_ANSWER_WITH_ANSWERS}`
         : "";
 
-    return `Points: ${question.points}\n${question.text}\n${answersText}${distractorText}${questionTypeIndicator}`;
+    return `Points: ${question.points}\n${question.text}\n${feedbackText}${answersText}${distractorText}${questionTypeIndicator}`;
   },
 
   parseMarkdown(input: string, questionIndex: number): LocalQuizQuestion {
@@ -182,7 +286,15 @@ export const quizQuestionMarkdownUtils = {
 
     const linesWithoutPoints = firstLineIsPoints ? lines.slice(1) : lines;
 
-    const { linesWithoutAnswers } = linesWithoutPoints.reduce(
+    // Extract feedback comments first
+    const {
+      correctComments,
+      incorrectComments,
+      neutralComments,
+      linesWithoutFeedback,
+    } = extractFeedback(linesWithoutPoints);
+
+    const { linesWithoutAnswers } = linesWithoutFeedback.reduce(
       ({ linesWithoutAnswers, taking }, currentLine) => {
         if (!taking)
           return { linesWithoutAnswers: linesWithoutAnswers, taking: false };
@@ -200,7 +312,7 @@ export const quizQuestionMarkdownUtils = {
       },
       { linesWithoutAnswers: [] as string[], taking: true }
     );
-    const questionType = getQuestionType(linesWithoutPoints, questionIndex);
+    const questionType = getQuestionType(linesWithoutFeedback, questionIndex);
 
     const questionTypesWithoutAnswers = [
       "essay",
@@ -212,10 +324,9 @@ export const quizQuestionMarkdownUtils = {
       questionType.toLowerCase()
     )
       ? linesWithoutAnswers
-          .slice(0, linesWithoutPoints.length)
+          .slice(0, linesWithoutFeedback.length)
           .filter(
-            (line) =>
-              !questionTypesWithoutAnswers.includes(line.toLowerCase())
+            (line) => !questionTypesWithoutAnswers.includes(line.toLowerCase())
           )
       : linesWithoutAnswers;
 
@@ -228,7 +339,7 @@ export const quizQuestionMarkdownUtils = {
       "short_answer=",
     ];
     const answers = typesWithAnswers.includes(questionType)
-      ? getAnswers(linesWithoutPoints, questionIndex, questionType)
+      ? getAnswers(linesWithoutFeedback, questionIndex, questionType)
       : [];
 
     const answersWithoutDistractors =
@@ -247,6 +358,9 @@ export const quizQuestionMarkdownUtils = {
       points,
       answers: answersWithoutDistractors,
       matchDistractors: distractors,
+      correctComments,
+      incorrectComments,
+      neutralComments,
     };
     return question;
   },