import { NextRequest, NextResponse } from "next/server";
import { prisma } from "@/lib/db";

export async function GET(
  _req: NextRequest,
  { params }: { params: Promise<{ id: string }> }
) {
  try {
    const { id } = await params;
    const job = await prisma.job.findUnique({
      where: { id },
      include: {
        results: {
          orderBy: { createdAt: "desc" },
          take: 200,
        },
      },
    });
    if (!job) return NextResponse.json({ error: "Job not found" }, { status: 404 });

    // Find which domains already existed in vault before this job
    const resultDomains = job.results
      .map(r => r.domain)
      .filter((d): d is string => !!d);

    const preExistingDomains = new Set(
      (await prisma.lead.findMany({
        where: {
          domain: { in: resultDomains },
          sourceJobId: { not: id },
        },
        select: { domain: true },
      })).map(l => l.domain).filter((d): d is string => !!d)
    );

    return NextResponse.json({
      id: job.id,
      type: job.type,
      status: job.status,
      config: JSON.parse(job.config),
      totalLeads: job.totalLeads,
      emailsFound: job.emailsFound,
      error: job.error,
      createdAt: job.createdAt,
      updatedAt: job.updatedAt,
      results: job.results.map(r => {
        let address: string | null = null;
        let phone: string | null = null;
        if (r.source) {
          try {
            const src = JSON.parse(r.source) as { address?: string; phone?: string };
            address = src.address ?? null;
            phone = src.phone ?? null;
          } catch { /* ignore */ }
        }
        return {
          id: r.id,
          companyName: r.companyName,
          domain: r.domain,
          contactName: r.contactName,
          contactTitle: r.contactTitle,
          email: r.email,
          linkedinUrl: r.linkedinUrl,
          address,
          phone,
          createdAt: r.createdAt,
          isNew: !r.domain || !preExistingDomains.has(r.domain),
        };
      }),
    });
  } catch (err) {
    console.error("GET /api/jobs/[id]/status error:", err);
    return NextResponse.json({ error: "Failed" }, { status: 500 });
  }
}