sourcebot/packages/web/src/app/api/(server)/stream_search/route.ts

'use server';

import { streamSearch } from '@/features/search/searchApi';
import { searchRequestSchema } from '@/features/search/types';
import { schemaValidationError, serviceErrorResponse } from '@/lib/serviceError';
import { isServiceError } from '@/lib/utils';
import { NextRequest } from 'next/server';

export const POST = async (request: NextRequest) => {
    const body = await request.json();
    const parsed = await searchRequestSchema.safeParseAsync(body);

    if (!parsed.success) {
        return serviceErrorResponse(schemaValidationError(parsed.error));
    }

    const stream = await streamSearch(parsed.data);
    if (isServiceError(stream)) {
        return serviceErrorResponse(stream);
    }

    return new Response(stream, {
        headers: {
            'Content-Type': 'text/event-stream',
            'Cache-Control': 'no-cache, no-transform',
            'Connection': 'keep-alive',
            'X-Accel-Buffering': 'no', // Disable nginx buffering if applicable
        },
    });
};