Prepared the code to later handle the evaluation of the Interactive Speaking exercise

src/utils/evaluation.ts

@@ -0,0 +1,70 @@
+import {Evaluation, Exam, SpeakingExercise, UserSolution, WritingExercise} from "@/interfaces/exam";
+import axios from "axios";
+import {speakingReverseMarking, writingReverseMarking} from "./score";
+
+export const evaluateWritingAnswer = async (exams: Exam[], examId: string, exerciseId: string, solution: UserSolution) => {
+	const writingExam = exams.find((x) => x.id === examId)!;
+	const exercise = writingExam.exercises.find((x) => x.id === exerciseId)! as WritingExercise;
+
+	const response = await axios.post<Evaluation>("/api/evaluate/writing", {
+		question: `${exercise.prompt} ${exercise.attachment ? exercise.attachment.description : ""}`.replaceAll("\n", ""),
+		answer: solution.solutions[0].solution.trim().replaceAll("\n", " "),
+	});
+
+	if (response.status === 200) {
+		return {
+			...solution,
+			score: {
+				correct: writingReverseMarking[response.data.overall] || 0,
+				missing: 0,
+				total: 100,
+			},
+			solutions: [{id: exerciseId, solution: solution.solutions[0].solution, evaluation: response.data}],
+		};
+	}
+
+	return undefined;
+};
+
+export const evaluateSpeakingAnswer = async (exams: Exam[], examId: string, exerciseId: string, solution: UserSolution) => {
+	const speakingExam = exams.find((x) => x.id === examId)!;
+	const exercise = speakingExam.exercises.find((x) => x.id === exerciseId);
+
+	if (exercise?.type === "speaking") {
+		return await evaluateSpeakingExercise(exercise, exerciseId, solution);
+	}
+
+	return undefined;
+};
+
+const evaluateSpeakingExercise = async (exercise: SpeakingExercise, exerciseId: string, solution: UserSolution) => {
+	const blobResponse = await axios.get(solution.solutions[0].solution.trim(), {responseType: "arraybuffer"});
+	const audioBlob = Buffer.from(blobResponse.data, "binary");
+	const audioFile = new File([audioBlob], "audio.wav", {type: "audio/wav"});
+
+	const formData = new FormData();
+	formData.append("audio", audioFile, "audio.wav");
+	formData.append("question", `${exercise.text.replaceAll("\n", "")} You should talk about: ${exercise.prompts.join(", ")}`);
+
+	const config = {
+		headers: {
+			"Content-Type": "audio/mp3",
+		},
+	};
+
+	const response = await axios.post("/api/evaluate/speaking", formData, config);
+
+	if (response.status === 200) {
+		return {
+			...solution,
+			score: {
+				correct: speakingReverseMarking[response.data.overall] || 0,
+				missing: 0,
+				total: 100,
+			},
+			solutions: [{id: exerciseId, solution: response.data.fullPath, evaluation: response.data}],
+		};
+	}
+
+	return undefined;
+};