import { cookies } from 'next/headers';
import { NextRequest, NextResponse } from 'next/server';
import { normalizeHealthResponse } from '../../../../lib/ops-data';

export async function GET(request: NextRequest) {
  const cookieStore = await cookies();
  const isProduction = process.env.NODE_ENV === 'production';
  const opsToken = isProduction
    ? cookieStore.get('__Host-motorsignal_ops')?.value
    : cookieStore.get('__Host-motorsignal_ops')?.value ??
      cookieStore.get('motorsignal_ops')?.value;

  const baseUrl = process.env.MOTORSIGNAL_API_BASE_URL ?? 'https://api.motorsignal.app';
  const headers: Record<string, string> = {
    accept: 'application/json',
  };

  if (opsToken) {
    headers['authorization'] = `Bearer ${opsToken}`;
  }

  try {
    const response = await fetch(`${baseUrl}/api/v1/ops/health`, {
      method: 'GET',
      headers,
      cache: 'no-store',
    });

    if (!response.ok) {
      if (response.status === 401) {
        return NextResponse.json(
          { detail: 'Authentication required.' },
          { status: 401 }
        );
      }
      if (response.status === 403) {
        return NextResponse.json(
          { detail: 'Access restricted.' },
          { status: 403 }
        );
      }
      return NextResponse.json(
        normalizeHealthResponse({ status: 'unavailable', checked_at: new Date().toISOString() }),
        { status: 503 }
      );
    }

    const data = await response.json();
    return NextResponse.json(normalizeHealthResponse(data), { status: 200 });
  } catch {
    return NextResponse.json(
      normalizeHealthResponse({ status: 'unavailable', checked_at: new Date().toISOString() }),
      { status: 503 }
    );
  }
}