2025SELab2-project-Dwengo/backend/src/controllers/learningPaths.ts

45 lines
1.8 KiB
TypeScript

import { Request, Response } from 'express';
import { themes } from '../data/themes.js';
import { FALLBACK_LANG } from '../config.js';
import { getLogger } from '../logging/initalize.js';
import learningPathService from '../services/learning-paths/learning-path-service.js';
import { Language } from '../entities/content/language.js';
/**
* Fetch learning paths based on query parameters.
*/
export async function getLearningPaths(req: Request, res: Response): Promise<void> {
try {
const hruids = req.query.hruid;
const themeKey = req.query.theme as string;
const searchQuery = req.query.search as string;
const language = (req.query.language as Language) || FALLBACK_LANG;
let hruidList;
if (hruids) {
hruidList = Array.isArray(hruids) ? hruids.map(String) : [String(hruids)];
} else if (themeKey) {
const theme = themes.find((t) => t.title === themeKey);
if (theme) {
hruidList = theme.hruids;
} else {
res.status(404).json({
error: `Theme "${themeKey}" not found.`,
});
return;
}
} else if (searchQuery) {
const searchResults = await learningPathService.searchLearningPaths(searchQuery, language);
res.json(searchResults);
return;
} else {
hruidList = themes.flatMap((theme) => theme.hruids);
}
const learningPaths = await learningPathService.fetchLearningPaths(hruidList, language, `HRUIDs: ${hruidList.join(', ')}`);
res.json(learningPaths.data);
} catch (error) {
getLogger().error('❌ Unexpected error fetching learning paths:', error);
res.status(500).json({ error: 'Internal server error' });
}
}