121 lines
3.2 KiB
TypeScript
121 lines
3.2 KiB
TypeScript
import {Request, Response} from "express";
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import {
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createQuestion,
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deleteQuestion,
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getAllQuestions,
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getAnswersByQuestion,
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getQuestion
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} from "../services/questions.js";
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import {QuestionDTO, QuestionId} from "../interfaces/question.js";
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import {FALLBACK_LANG, FALLBACK_SEQ_NUM} from "../config.js";
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import {LearningObjectIdentifier} from "../entities/content/learning-object-identifier.js";
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import {Language} from "../entities/content/language.js";
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function getObjectId(req: Request, res: Response): LearningObjectIdentifier | null {
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const { hruid, version } = req.params
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const lang = req.query.lang
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if (!hruid || !version ) {
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res.status(400).json({ error: "Missing required parameters." });
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return null;
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}
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return {
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hruid,
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language: lang as Language || FALLBACK_LANG,
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version: +version
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}
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}
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function getQuestionId(req: Request, res: Response): QuestionId | null {
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const seq = req.params.seq
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const learningObjectIdentifier = getObjectId(req,res);
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if (!learningObjectIdentifier)
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{return null}
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return {
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learningObjectIdentifier,
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sequenceNumber: seq ? Number(seq) : FALLBACK_SEQ_NUM
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}
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}
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export async function getAllQuestionsHandler(
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req: Request,
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res: Response
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): Promise<void> {
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const objectId = getObjectId(req, res);
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const full = req.query.full === 'true';
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if (!objectId)
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{return}
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const questions = await getAllQuestions(objectId, full);
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if (!questions)
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{res.status(404).json({ error: `Questions not found.` });}
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else
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{res.json(questions);}
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}
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export async function getQuestionHandler(req: Request, res: Response): Promise<void> {
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const questionId = getQuestionId(req, res);
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if (!questionId)
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{return}
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const question = await getQuestion(questionId);
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if (!question)
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{res.status(404).json({ error: `Question not found.` });}
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else
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{res.json(question)}
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}
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export async function getQuestionAnswersHandler(req: Request, res: Response): Promise<void> {
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const questionId = getQuestionId(req, res);
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const full = req.query.full === 'true';
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if (!questionId)
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{return}
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const answers = getAnswersByQuestion(questionId, full);
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if (!answers)
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{res.status(404).json({ error: `Questions not found.` });}
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else
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{res.json(answers)}
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}
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export async function createQuestionHandler(req: Request, res: Response): Promise<void> {
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const questionDTO = req.body as QuestionDTO;
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if (!questionDTO.learningObjectIdentifier || !questionDTO.author || !questionDTO.content) {
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res.status(400).json({error: 'Missing required fields: identifier and content'});
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return;
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}
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const question = await createQuestion(questionDTO);
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if (!question)
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{res.status(400).json({error: 'Could not add question'});}
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else
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{res.json(question)}
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}
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export async function deleteQuestionHandler(req: Request, res: Response): Promise<void> {
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const questionId = getQuestionId(req, res);
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if (!questionId)
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{return}
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const question = await deleteQuestion(questionId);
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if (!question)
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{res.status(400).json({error: 'Could not find nor delete question'});}
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else
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{res.json(question)}
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}
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