import { NextRequest, NextResponse } from 'next/server';

const CRAWL_SERVICE_URL = 'http://127.0.0.1:8000';

export async function POST(req: NextRequest) {
    try {
        const body = await req.json();
        const { message, history } = body;

        console.log(`[Grok Debug API] Incoming body:`, JSON.stringify(body, null, 2));

        const proxyPayload = {
            message,
            history: history || [],
            cookies: body.cookies || null,
            user_agent: body.userAgent || null
        };
        console.log(`[Grok Debug API] Proxy payload:`, JSON.stringify(proxyPayload, null, 2));

        const response = await fetch(`${CRAWL_SERVICE_URL}/grok/chat`, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
            },
            body: JSON.stringify(proxyPayload),
        });

        if (!response.ok) {
            const errorText = await response.text();
            console.error(`[Grok Debug API] Service error: ${response.status} ${errorText}`);
            try {
                // Try to parse detailed JSON error from FastAPI
                const errorJson = JSON.parse(errorText);
                return NextResponse.json(errorJson, { status: response.status });
            } catch {
                // Fallback to text
                return NextResponse.json(
                    { error: `Service error: ${response.status} - ${errorText}` },
                    { status: response.status }
                );
            }
        }

        const data = await response.json();
        return NextResponse.json(data);

    } catch (error: any) {
        console.error('[Grok Debug API] Internal error:', error);
        return NextResponse.json(
            { error: error.message || 'Internal Server Error' },
            { status: 500 }
        );
    }
}