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caseController.ts
Fauwaz (Fauwaz)
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Fauwaz
Dec 13 2025, 11:15 PM
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caseController.ts
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import { Request, Response } from "express";
import { WikidataService } from "../services/wikidataService";
import { CaseFilterService } from "../services/caseFilterService";
import { CaseFilters, FilterResponse, SearchResponse } from "../models/Case";
/**
* Controller for handling case-related API requests
*/
export class CaseController {
/**
* Handles search requests with keyword query
* @param req Express request object
* @param res Express response object
*/
static async search(req: Request, res: Response): Promise<void> {
const userQuery = (req.query.q as string)?.trim().toLowerCase() || "";
try {
const cases = await WikidataService.fetchCases();
const filteredCases = cases.filter((caseData) => {
if (!userQuery) return true; // Return all if no query
return (
caseData.title.toLowerCase().includes(userQuery) ||
(caseData.description && caseData.description.toLowerCase().includes(userQuery)) ||
(caseData.judges && caseData.judges.toLowerCase().includes(userQuery)) ||
(caseData.citation && caseData.citation.toLowerCase().includes(userQuery)) ||
(caseData.court && caseData.court.toLowerCase().includes(userQuery))
);
});
const response: SearchResponse = {
success: true,
results: filteredCases
};
res.json(response);
} catch (error) {
console.error("❌ Search Error:", error);
res.status(500).json({
success: false,
error: "Please check your internet connection!"
});
}
}
/**
* Handles filter requests with multiple filter parameters
* @param req Express request object
* @param res Express response object
*/
static async filter(req: Request, res: Response): Promise<void> {
const keyword = (req.query.keyword as string)?.trim() || "";
const year = (req.query.year as string)?.trim() || "";
const judge = (req.query.judge as string)?.trim() || "";
const caseType = (req.query.type as string)?.trim() || "";
// Validate year if provided
if (year && !CaseFilterService.validateYear(year)) {
res.status(400).json({
success: false,
error: "Invalid year format. Year must be a number between 1900 and current year (e.g., 2020)"
});
return;
}
try {
const cases = await WikidataService.fetchCases();
const filters: CaseFilters = {
keyword: keyword || undefined,
year: year || undefined,
judge: judge || undefined,
caseType: caseType || undefined
};
const filteredCases = CaseFilterService.filterCases(cases, filters);
const response: FilterResponse = {
success: true,
results: filteredCases,
filters: {
keyword: keyword || null,
year: year || null,
judge: judge || null,
caseType: caseType || null
},
count: filteredCases.length
};
res.json(response);
} catch (error) {
console.error("❌ Filter Error:", error);
res.status(500).json({
success: false,
error: "Please check your internet connection!"
});
}
}
}

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