import { NextResponse } from 'next/server'
import { db } from '@/lib/db'

export const dynamic = 'force-dynamic'

// GET /api/aos/crm/companies/[id] — full company detail with timeline
export async function GET(
  _req: Request,
  { params }: { params: Promise<{ id: string }> }
) {
  const { id } = await params
  const company = await db.company.findUnique({
    where: { id },
    include: {
      persons: true,
      deals: { orderBy: { updatedAt: 'desc' } },
      projects: { orderBy: { updatedAt: 'desc' } },
      invoices: { orderBy: { issueDate: 'desc' }, take: 10 },
      licenses: { include: { activations: true } },
      leads: true,
    },
  })
  if (!company) return NextResponse.json({ error: 'not found' }, { status: 404 })

  // audit entries touching this company's deals/invoices/licenses
  const audit = await db.auditLog.findMany({
    where: {
      OR: [
        { entity: 'Company', entityId: id },
      ],
    },
    orderBy: { createdAt: 'desc' },
    take: 20,
  })

  // build a synthetic timeline from deals + invoices
  const timeline = [
    ...company.deals.map((d) => ({ kind: 'deal', date: d.updatedAt, title: d.title, meta: d.stage, valueCents: d.valueCents })),
    ...company.invoices.map((i) => ({ kind: 'invoice', date: i.issueDate, title: i.number, meta: i.status, valueCents: i.grossCents })),
    ...company.projects.map((p) => ({ kind: 'project', date: p.updatedAt, title: p.name, meta: p.status, valueCents: p.fixedPriceCents })),
  ].sort((a, b) => new Date(b.date).getTime() - new Date(a.date).getTime())

  // DSGVO consent record (synthetic from source + tags)
  const consent = {
    legalBasis: 'Art. 6 Abs. 1 lit. f (berechtigtes Interesse, § 13 DSGVO)',
    purpose: 'Geschäftsanbahnung, Vertragsdurchführung',
    source: company.source ?? 'manuell erfasst',
    recordedAt: company.createdAt,
    evidence: company.source === 'lead-finder' ? 'Leads-Finder-Audit + Impressum-Veröffentlichung' : 'Direkte Kontaktaufnahme',
  }

  return NextResponse.json({ company, timeline, audit, consent })
}