From 782976c14f09a7a82176073549d5a7a32bc8ace9 Mon Sep 17 00:00:00 2001
From: Tiago Ribeiro <tiago.ribeiro@ecrop.dev>
Date: Fri, 29 Sep 2023 13:56:11 +0100
Subject: [PATCH] Updated the Listening format to work

---
 src/exams/Finish.tsx                 |  2 +-
 src/exams/Listening.tsx              | 56 ++++++++++++++++++++++------
 src/interfaces/exam.ts               | 12 +++---
 src/pages/(admin)/Lists/ExamList.tsx |  6 +--
 src/pages/exam.tsx                   |  2 +-
 src/pages/exercises.tsx              |  2 +-
 6 files changed, 57 insertions(+), 23 deletions(-)

diff --git a/src/exams/Finish.tsx b/src/exams/Finish.tsx
index 4ddc5b29..3235cd58 100644
--- a/src/exams/Finish.tsx
+++ b/src/exams/Finish.tsx
@@ -55,7 +55,7 @@ export default function Finish({user, scores, modules, isLoading, onViewResults}
 
 	const getTotalExercises = () => {
 		const exam = exams.find((x) => x.module === selectedModule)!;
-		if (exam.module === "reading") {
+		if (exam.module === "reading" || exam.module === "listening") {
 			return exam.parts.flatMap((x) => x.exercises).length;
 		}
 
diff --git a/src/exams/Listening.tsx b/src/exams/Listening.tsx
index 66fe4499..70eed3fa 100644
--- a/src/exams/Listening.tsx
+++ b/src/exams/Listening.tsx
@@ -17,8 +17,11 @@ interface Props {
 
 export default function Listening({exam, showSolutions = false, onFinish}: Props) {
 	const [exerciseIndex, setExerciseIndex] = useState(showSolutions ? 0 : -1);
+	const [partIndex, setPartIndex] = useState(0);
 	const [timesListened, setTimesListened] = useState(0);
-	const [userSolutions, setUserSolutions] = useState<UserSolution[]>(exam.exercises.map((x) => defaultUserSolutions(x, exam)));
+	const [userSolutions, setUserSolutions] = useState<UserSolution[]>(
+		exam.parts.flatMap((x) => x.exercises).map((x) => defaultUserSolutions(x, exam)),
+	);
 	const [showBlankModal, setShowBlankModal] = useState(false);
 
 	const [hasExamEnded, setHasExamEnded] = useExamStore((state) => [state.hasExamEnded, state.setHasExamEnded]);
@@ -43,11 +46,17 @@ export default function Listening({exam, showSolutions = false, onFinish}: Props
 			setUserSolutions((prev) => [...prev.filter((x) => x.exercise !== solution.exercise), solution]);
 		}
 
-		if (exerciseIndex + 1 < exam.exercises.length && !hasExamEnded) {
+		if (exerciseIndex + 1 < exam.parts[partIndex].exercises.length && !hasExamEnded) {
 			setExerciseIndex((prev) => prev + 1);
 			return;
 		}
 
+		if (partIndex + 1 < exam.parts.length && !hasExamEnded) {
+			setPartIndex((prev) => prev + 1);
+			setExerciseIndex(showSolutions ? 0 : -1);
+			return;
+		}
+
 		if (
 			solution &&
 			![...userSolutions.filter((x) => x.exercise !== solution?.exercise).map((x) => x.score.missing), solution?.score.missing].every(
@@ -80,7 +89,7 @@ export default function Listening({exam, showSolutions = false, onFinish}: Props
 	};
 
 	const getExercise = () => {
-		const exercise = exam.exercises[exerciseIndex];
+		const exercise = exam.parts[partIndex].exercises[exerciseIndex];
 		return {
 			...exercise,
 			userSolutions: userSolutions.find((x) => x.exercise === exercise.id)?.solutions || [],
@@ -92,17 +101,17 @@ export default function Listening({exam, showSolutions = false, onFinish}: Props
 			<div className="flex flex-col w-full gap-2">
 				<h4 className="text-xl font-semibold">Please listen to the following audio attentively.</h4>
 				<span className="text-base">
-					{exam.audio.repeatableTimes > 0
-						? `You will only be allowed to listen to the audio ${exam.audio.repeatableTimes - timesListened} time(s).`
+					{exam.parts[partIndex].audio.repeatableTimes > 0
+						? `You will only be allowed to listen to the audio ${exam.parts[partIndex].audio.repeatableTimes - timesListened} time(s).`
 						: "You may listen to the audio as many times as you would like."}
 				</span>
 			</div>
 			<div className="rounded-xl flex flex-col gap-4 items-center w-full h-fit">
 				<AudioPlayer
-					src={exam.audio.source}
+					src={exam.parts[partIndex].audio.source}
 					color="listening"
 					onEnd={() => setTimesListened((prev) => prev + 1)}
-					disabled={timesListened === exam.audio.repeatableTimes}
+					disabled={timesListened === exam.parts[partIndex].audio.repeatableTimes}
 					disablePause
 				/>
 			</div>
@@ -114,23 +123,46 @@ export default function Listening({exam, showSolutions = false, onFinish}: Props
 			<BlankQuestionsModal isOpen={showBlankModal} onClose={confirmFinishModule} />
 			<div className="flex flex-col h-full w-full gap-8 justify-between">
 				<ModuleTitle
-					exerciseIndex={exerciseIndex + 1}
+					exerciseIndex={
+						(exam.parts
+							.flatMap((x) => x.exercises)
+							.findIndex(
+								(x) => x.id === exam.parts[partIndex].exercises[exerciseIndex === -1 ? exerciseIndex + 1 : exerciseIndex]?.id,
+							) || 0) + (exerciseIndex === -1 ? 0 : 1)
+					}
 					minTimer={exam.minTimer}
 					module="listening"
-					totalExercises={exam.exercises.length}
+					totalExercises={exam.parts.flatMap((x) => x.exercises).length}
 					disableTimer={showSolutions}
 				/>
 				{renderAudioPlayer()}
 				{exerciseIndex > -1 &&
-					exerciseIndex < exam.exercises.length &&
+					exerciseIndex < exam.parts[partIndex].exercises.length &&
 					!showSolutions &&
 					renderExercise(getExercise(), nextExercise, previousExercise)}
 				{exerciseIndex > -1 &&
-					exerciseIndex < exam.exercises.length &&
+					exerciseIndex < exam.parts[partIndex].exercises.length &&
 					showSolutions &&
-					renderSolution(exam.exercises[exerciseIndex], nextExercise, previousExercise)}
+					renderSolution(exam.parts[partIndex].exercises[exerciseIndex], nextExercise, previousExercise)}
 			</div>
+			{exerciseIndex === -1 && partIndex > 0 && (
+				<div className="self-end flex justify-between w-full gap-8 absolute bottom-8 left-0 px-8">
+					<Button
+						color="purple"
+						variant="outline"
+						onClick={() => {
+							setExerciseIndex(exam.parts[partIndex - 1].exercises.length - 1);
+							setPartIndex((prev) => prev - 1);
+						}}
+						className="max-w-[200px] w-full">
+						Back
+					</Button>
 
+					<Button color="purple" onClick={() => nextExercise()} className="max-w-[200px] self-end w-full">
+						Next
+					</Button>
+				</div>
+			)}
 			{exerciseIndex === -1 && (
 				<Button color="purple" onClick={() => nextExercise()} className="max-w-[200px] self-end w-full justify-self-end">
 					Start now
diff --git a/src/interfaces/exam.ts b/src/interfaces/exam.ts
index df626ed5..72f51681 100644
--- a/src/interfaces/exam.ts
+++ b/src/interfaces/exam.ts
@@ -18,12 +18,14 @@ export interface ReadingExam {
 }
 
 export interface ListeningExam {
-	audio: {
-		source: string;
-		repeatableTimes: number; // *The amount of times the user is allowed to repeat the audio, 0 for unlimited
-	};
+	parts: {
+		audio: {
+			source: string;
+			repeatableTimes: number; // *The amount of times the user is allowed to repeat the audio, 0 for unlimited
+		};
+		exercises: Exercise[];
+	}[];
 	id: string;
-	exercises: Exercise[];
 	module: "listening";
 	minTimer: number;
 	isDiagnostic: boolean;
diff --git a/src/pages/(admin)/Lists/ExamList.tsx b/src/pages/(admin)/Lists/ExamList.tsx
index 3ffc1592..9abf19cc 100644
--- a/src/pages/(admin)/Lists/ExamList.tsx
+++ b/src/pages/(admin)/Lists/ExamList.tsx
@@ -45,8 +45,8 @@ export default function ExamList() {
 		router.push("/exercises");
 	};
 
-	const getTotalExercises = (exam: Exam, module: Module) => {
-		if (exam.module === "reading") {
+	const getTotalExercises = (exam: Exam) => {
+		if (exam.module === "reading" || exam.module === "listening") {
 			return exam.parts.flatMap((x) => x.exercises).length;
 		}
 
@@ -62,7 +62,7 @@ export default function ExamList() {
 			header: "Module",
 			cell: (info) => <span className={CLASSES[info.getValue()]}>{capitalize(info.getValue())}</span>,
 		}),
-		columnHelper.accessor((x) => getTotalExercises(x, x.module), {
+		columnHelper.accessor((x) => getTotalExercises(x), {
 			header: "Exercises",
 			cell: (info) => info.getValue(),
 		}),
diff --git a/src/pages/exam.tsx b/src/pages/exam.tsx
index ac413475..f5744c2d 100644
--- a/src/pages/exam.tsx
+++ b/src/pages/exam.tsx
@@ -137,7 +137,7 @@ export default function Page() {
 	};
 
 	const updateExamWithUserSolutions = (exam: Exam): Exam => {
-		if (exam.module === "reading") {
+		if (exam.module === "reading" || exam.module === "listening") {
 			const parts = exam.parts.map((p) =>
 				Object.assign(p, {
 					exercises: p.exercises.map((x) => Object.assign(x, {userSolutions: userSolutions.find((y) => x.id === y.exercise)?.solutions})),
diff --git a/src/pages/exercises.tsx b/src/pages/exercises.tsx
index 0377178d..e1a813ac 100644
--- a/src/pages/exercises.tsx
+++ b/src/pages/exercises.tsx
@@ -141,7 +141,7 @@ export default function Page() {
 	};
 
 	const updateExamWithUserSolutions = (exam: Exam): Exam => {
-		if (exam.module === "reading") {
+		if (exam.module === "reading" || exam.module === "listening") {
 			const parts = exam.parts.map((p) =>
 				Object.assign(p, {
 					exercises: p.exercises.map((x) => Object.assign(x, {userSolutions: userSolutions.find((y) => x.id === y.exercise)?.solutions})),