import { redirect } from "next/navigation"
import { and, asc, eq } from "drizzle-orm"
import { db } from "@/lib/db"
import { tenants as tenantsTable, properties } from "@/lib/db/schema"
import { getSessionUser } from "@/lib/session"
import { getEffectiveOwnerId } from "@/lib/account"
import { LeaseForm } from "@/components/forms/lease-form"
import { BackButton } from "@/components/ui/back-button"

export const metadata = { title: "Add Lease" }

export default async function NewLeasePage({ searchParams }: { searchParams: Promise<Record<string, string>> }) {
  const user = await getSessionUser()
  if (!user) redirect("/login")

  const ownerId = await getEffectiveOwnerId(user.id)

  const params = await searchParams
  const prefill = {
    tenant_id:   params.tenant_id   ?? "",
    property_id: params.property_id ?? "",
    unit_id:     params.unit_id     ?? "",
    rent_amount: params.rent_amount  ?? "",
  }

  const [tenants, properties_] = await Promise.all([
    db
      .select({
        id: tenantsTable.id,
        first_name: tenantsTable.first_name,
        last_name: tenantsTable.last_name,
        unit_id: tenantsTable.unit_id,
        property_id: tenantsTable.property_id,
      })
      .from(tenantsTable)
      .where(and(eq(tenantsTable.user_id, ownerId), eq(tenantsTable.status, "active")))
      .orderBy(asc(tenantsTable.first_name)),
    db.query.properties.findMany({
      where: eq(properties.user_id, ownerId),
      columns: { id: true, name: true },
      with: {
        units: { columns: { id: true, unit_number: true } },
      },
      orderBy: asc(properties.name),
    }),
  ])

  return (
    <div className="mx-auto max-w-2xl space-y-6">
      <BackButton href="/leases" />
      <div>
        <h2 className="text-lg font-semibold text-white">Add Lease</h2>
        <p className="text-sm text-white/40">
          {prefill.tenant_id ? "Renewing lease — dates pre-filled from previous lease" : "Create a lease record for a tenant"}
        </p>
      </div>
      <LeaseForm tenants={tenants ?? []} properties={properties_ ?? []} prefill={prefill} />
    </div>
  )
}
