import { notFound, redirect } from "next/navigation"
import { and, eq, desc } from "drizzle-orm"
import { db } from "@/lib/db"
import { tenants as tenantsTable, rent_payments, maintenance_requests, leases as leasesTable } from "@/lib/db/schema"
import { getSessionUser } from "@/lib/session"
import { getEffectiveOwnerId } from "@/lib/account"
import Link from "next/link"
import { formatCurrency, formatDate } from "@/lib/utils"
import { RentStatusBadge } from "@/components/dashboard/rent-status-badge"
import { MaintenanceStatusBadge, PriorityBadge } from "@/components/dashboard/maintenance-status-badge"
import { Mail, Phone } from "lucide-react"
import { CopyButton } from "@/components/shared/copy-button"
import { SendReminderButton } from "@/components/shared/send-reminder-button"
import { DeleteTenantButton } from "@/components/forms/delete-tenant-button"

export default async function TenantDetailPage({ params }: { params: Promise<{ tenantId: string }> }) {
  const user = await getSessionUser()
  if (!user) redirect("/login")

  const ownerId = await getEffectiveOwnerId(user.id)

  const { tenantId } = await params

  const tenant = await db.query.tenants.findFirst({
    where: and(eq(tenantsTable.id, tenantId), eq(tenantsTable.user_id, ownerId)),
    with: {
      unit: { columns: { unit_number: true, rent_amount: true, bedrooms: true, bathrooms: true } },
      property: { columns: { name: true, address_line1: true, city: true, state: true } },
    },
  })

  if (!tenant) notFound()

  const [payments, maintenanceRequests, leases] = await Promise.all([
    db
      .select()
      .from(rent_payments)
      .where(and(eq(rent_payments.user_id, ownerId), eq(rent_payments.tenant_id, tenantId)))
      .orderBy(desc(rent_payments.due_date))
      .limit(6),
    db
      .select()
      .from(maintenance_requests)
      .where(and(eq(maintenance_requests.user_id, ownerId), eq(maintenance_requests.tenant_id, tenantId)))
      .orderBy(desc(maintenance_requests.created_at))
      .limit(5),
    db
      .select()
      .from(leasesTable)
      .where(and(eq(leasesTable.user_id, ownerId), eq(leasesTable.tenant_id, tenantId)))
      .orderBy(desc(leasesTable.created_at))
      .limit(1),
  ])

  const activeLease = leases?.[0]
  const portalUrl = `${process.env.NEXT_PUBLIC_APP_URL}/tenant-portal/${tenant.portal_token}`

  return (
    <div className="mx-auto max-w-4xl space-y-6">
      {/* Breadcrumb */}
      <div className="flex items-center gap-2 text-sm text-white/40">
        <Link href="/tenants" className="hover:text-white transition">Tenants</Link>
        <span>/</span>
        <span className="text-white/70">{tenant.first_name} {tenant.last_name}</span>
      </div>

      {/* Header */}
      <div className="flex items-start justify-between">
        <div className="flex items-center gap-4">
          <div className="flex h-14 w-14 items-center justify-center rounded-full bg-indigo-600/20 text-lg font-bold text-indigo-400">
            {tenant.first_name[0]}{tenant.last_name[0]}
          </div>
          <div>
            <h2 className="text-xl font-bold text-white">{tenant.first_name} {tenant.last_name}</h2>
            <div className="flex items-center gap-3 mt-1">
              {tenant.email && <span className="flex items-center gap-1 text-sm text-white/50"><Mail className="h-3.5 w-3.5" />{tenant.email}</span>}
              {tenant.phone && <span className="flex items-center gap-1 text-sm text-white/50"><Phone className="h-3.5 w-3.5" />{tenant.phone}</span>}
            </div>
          </div>
        </div>
        <div className="flex items-center gap-2">
          <Link
            href={`/tenants/${tenantId}/edit`}
            className="rounded-lg border border-white/10 px-4 py-2 text-sm text-white/60 hover:border-white/20 hover:text-white transition"
          >
            Edit
          </Link>
          <DeleteTenantButton
            tenantId={tenantId}
            tenantName={`${tenant.first_name} ${tenant.last_name}`}
          />
        </div>
      </div>

      <div className="grid gap-6 lg:grid-cols-3">
        <div className="lg:col-span-2 space-y-6">
          {/* Rent payments */}
          <div className="rounded-xl border border-white/[0.06] bg-[#16161f]">
            <div className="flex items-center justify-between border-b border-white/[0.06] px-5 py-4">
              <h3 className="text-sm font-semibold text-white">Rent Payments</h3>
              <Link href="/rent/new" className="text-xs text-indigo-400 hover:text-indigo-300">+ Record</Link>
            </div>
            {!payments?.length ? (
              <p className="px-5 py-6 text-sm text-white/30">No payments recorded.</p>
            ) : (
              <div className="divide-y divide-white/[0.04]">
                {payments.map((p: any) => (
                  <div key={p.id} className="flex items-center justify-between px-5 py-3">
                    <div>
                      <p className="text-sm text-white">{formatDate(p.due_date)}</p>
                      {p.paid_date && <p className="text-xs text-white/40">Paid {formatDate(p.paid_date)}</p>}
                    </div>
                    <div className="flex items-center gap-3">
                      <span className="text-sm font-semibold text-white">{formatCurrency(p.amount)}</span>
                      <RentStatusBadge status={p.status} />
                      {(p.status === "pending" || p.status === "overdue") && tenant.email && (
                        <SendReminderButton tenantId={tenant.id} paymentId={p.id} />
                      )}
                    </div>
                  </div>
                ))}
              </div>
            )}
          </div>

          {/* Maintenance */}
          <div className="rounded-xl border border-white/[0.06] bg-[#16161f]">
            <div className="flex items-center justify-between border-b border-white/[0.06] px-5 py-4">
              <h3 className="text-sm font-semibold text-white">Maintenance Requests</h3>
              <Link href="/maintenance/new" className="text-xs text-indigo-400 hover:text-indigo-300">+ New</Link>
            </div>
            {!maintenanceRequests?.length ? (
              <p className="px-5 py-6 text-sm text-white/30">No maintenance requests.</p>
            ) : (
              <div className="divide-y divide-white/[0.04]">
                {maintenanceRequests.map((r: any) => (
                  <Link key={r.id} href={`/maintenance/${r.id}`} className="flex items-center justify-between px-5 py-3 hover:bg-white/[0.02] transition">
                    <div>
                      <p className="text-sm text-white">{r.title}</p>
                      <p className="text-xs text-white/40">{formatDate(r.created_at)}</p>
                    </div>
                    <div className="flex items-center gap-2">
                      <PriorityBadge priority={r.priority} />
                      <MaintenanceStatusBadge status={r.status} />
                    </div>
                  </Link>
                ))}
              </div>
            )}
          </div>
        </div>

        {/* Sidebar */}
        <div className="space-y-4">
          {/* Unit info */}
          <div className="rounded-xl border border-white/[0.06] bg-[#16161f] p-5 space-y-3">
            <h3 className="text-xs font-medium uppercase tracking-wider text-white/30">Unit</h3>
            <p className="text-sm font-medium text-white">{tenant.property?.name}</p>
            {tenant.unit && <p className="text-sm text-white/60">Unit {tenant.unit.unit_number} · {tenant.unit.bedrooms}bd/{tenant.unit.bathrooms}ba</p>}
            {tenant.unit?.rent_amount && <p className="text-sm font-bold text-white">{formatCurrency(tenant.unit.rent_amount)}<span className="text-xs text-white/40">/mo</span></p>}
            {tenant.move_in_date && <p className="text-xs text-white/40">Moved in {formatDate(tenant.move_in_date)}</p>}
          </div>

          {/* Active lease */}
          {activeLease && (
            <div className="rounded-xl border border-white/[0.06] bg-[#16161f] p-5 space-y-2">
              <h3 className="text-xs font-medium uppercase tracking-wider text-white/30">Lease</h3>
              <p className="text-xs text-white/50">{formatDate(activeLease.lease_start)} → {formatDate(activeLease.lease_end)}</p>
              <p className="text-xs text-white/50 capitalize">{activeLease.status}</p>
            </div>
          )}

          {/* Tenant portal */}
          <div className="rounded-xl border border-indigo-500/20 bg-indigo-500/5 p-5 space-y-2">
            <h3 className="text-xs font-medium uppercase tracking-wider text-indigo-400/60">Tenant Portal</h3>
            <p className="text-xs text-white/40">Share this link with the tenant to submit maintenance requests.</p>
            <div className="flex items-center gap-2 rounded-lg bg-white/5 px-3 py-2">
              <span className="flex-1 truncate text-xs text-white/60">/tenant-portal/{tenant.portal_token?.slice(0, 12)}…</span>
              <CopyButton text={portalUrl} />
              <a href={portalUrl} target="_blank" rel="noopener noreferrer" className="text-xs text-indigo-400 hover:text-indigo-300">Open</a>
            </div>
          </div>

          {/* Emergency contact */}
          {tenant.emergency_contact_name && (
            <div className="rounded-xl border border-white/[0.06] bg-[#16161f] p-5 space-y-2">
              <h3 className="text-xs font-medium uppercase tracking-wider text-white/30">Emergency Contact</h3>
              <p className="text-sm text-white">{tenant.emergency_contact_name}</p>
              {tenant.emergency_contact_phone && <p className="text-xs text-white/50">{tenant.emergency_contact_phone}</p>}
            </div>
          )}
        </div>
      </div>
    </div>
  )
}