import {
	collectSessionBrowserPayload,
	requireProjectCwd,
} from "../../../../../src/web/bridge-service.ts";
import {
	isSessionBrowserNameFilter,
	isSessionBrowserSortMode,
} from "../../../../lib/session-browser-contract.ts";

export const runtime = "nodejs";
export const dynamic = "force-dynamic";

function invalidQuery(message: string): Response {
	return Response.json(
		{ error: message },
		{
			status: 400,
			headers: {
				"Cache-Control": "no-store",
			},
		},
	);
}

export async function GET(request: Request): Promise<Response> {
	const { searchParams } = new URL(request.url);
	const sortMode = searchParams.get("sortMode");
	const nameFilter = searchParams.get("nameFilter");

	if (sortMode !== null && !isSessionBrowserSortMode(sortMode)) {
		return invalidQuery(`Invalid sortMode: ${sortMode}`);
	}

	if (nameFilter !== null && !isSessionBrowserNameFilter(nameFilter)) {
		return invalidQuery(`Invalid nameFilter: ${nameFilter}`);
	}

	const projectCwd = requireProjectCwd(request);
	const payload = await collectSessionBrowserPayload(
		{
			query: searchParams.get("query") ?? undefined,
			sortMode: sortMode ?? undefined,
			nameFilter: nameFilter ?? undefined,
		},
		projectCwd,
	);

	return Response.json(payload, {
		headers: {
			"Cache-Control": "no-store",
		},
	});
}