'use client'

import { useState } from 'react'
import { useRouter } from 'next/navigation'
import { trpc } from '@/lib/trpc-client'
import Link from 'next/link'
import { SPARTEN } from '@innungsapp/shared'

export default function MitgliedNeuPage() {
  const router = useRouter()
  const [sendInvite, setSendInvite] = useState(true)
  const [form, setForm] = useState({
    name: '',
    betrieb: '',
    sparte: 'Elektrotechnik',
    ort: '',
    telefon: '',
    email: '',
    status: 'aktiv' as const,
    istAusbildungsbetrieb: false,
    seit: new Date().getFullYear(),
  })

  const createMutation = trpc.members.create.useMutation({
    onSuccess: () => router.push('/dashboard/mitglieder'),
  })
  const inviteMutation = trpc.members.invite.useMutation({
    onSuccess: () => router.push('/dashboard/mitglieder'),
  })

  const isPending = createMutation.isPending || inviteMutation.isPending
  const error = createMutation.error ?? inviteMutation.error

  function handleSubmit(e: React.FormEvent) {
    e.preventDefault()
    if (sendInvite) {
      inviteMutation.mutate(form)
    } else {
      createMutation.mutate(form)
    }
  }

  return (
    <div className="max-w-2xl space-y-6">
      <div className="flex items-center gap-4">
        <Link href="/dashboard/mitglieder" className="text-gray-400 hover:text-gray-600">
          ← Zurück
        </Link>
        <h1 className="text-2xl font-bold text-gray-900">Mitglied anlegen</h1>
      </div>

      <form onSubmit={handleSubmit} className="bg-white rounded-xl border shadow-sm p-6 space-y-4">
        <div className="grid grid-cols-2 gap-4">
          <div className="col-span-2">
            <label className="block text-sm font-medium text-gray-700 mb-1">Name *</label>
            <input
              required
              value={form.name}
              onChange={(e) => setForm({ ...form, name: e.target.value })}
              className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-brand-500"
            />
          </div>
          <div className="col-span-2">
            <label className="block text-sm font-medium text-gray-700 mb-1">Betrieb *</label>
            <input
              required
              value={form.betrieb}
              onChange={(e) => setForm({ ...form, betrieb: e.target.value })}
              className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-brand-500"
            />
          </div>
          <div>
            <label className="block text-sm font-medium text-gray-700 mb-1">Sparte *</label>
            <select
              value={form.sparte}
              onChange={(e) => setForm({ ...form, sparte: e.target.value })}
              className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-brand-500"
            >
              {SPARTEN.map((s) => <option key={s}>{s}</option>)}
            </select>
          </div>
          <div>
            <label className="block text-sm font-medium text-gray-700 mb-1">Ort *</label>
            <input
              required
              value={form.ort}
              onChange={(e) => setForm({ ...form, ort: e.target.value })}
              className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-brand-500"
            />
          </div>
          <div>
            <label className="block text-sm font-medium text-gray-700 mb-1">E-Mail *</label>
            <input
              required
              type="email"
              value={form.email}
              onChange={(e) => setForm({ ...form, email: e.target.value })}
              className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-brand-500"
            />
          </div>
          <div>
            <label className="block text-sm font-medium text-gray-700 mb-1">Telefon</label>
            <input
              type="tel"
              value={form.telefon}
              onChange={(e) => setForm({ ...form, telefon: e.target.value })}
              className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-brand-500"
            />
          </div>
          <div>
            <label className="block text-sm font-medium text-gray-700 mb-1">Mitglied seit</label>
            <input
              type="number"
              value={form.seit}
              onChange={(e) => setForm({ ...form, seit: Number(e.target.value) })}
              min="1900"
              max="2100"
              className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-brand-500"
            />
          </div>
          <div>
            <label className="block text-sm font-medium text-gray-700 mb-1">Status</label>
            <select
              value={form.status}
              onChange={(e) => setForm({ ...form, status: e.target.value as typeof form.status })}
              className="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-brand-500"
            >
              <option value="aktiv">Aktiv</option>
              <option value="ruhend">Ruhend</option>
              <option value="ausgetreten">Ausgetreten</option>
            </select>
          </div>
          <div className="col-span-2">
            <label className="flex items-center gap-2 cursor-pointer">
              <input
                type="checkbox"
                checked={form.istAusbildungsbetrieb}
                onChange={(e) => setForm({ ...form, istAusbildungsbetrieb: e.target.checked })}
                className="rounded border-gray-300 text-brand-500 focus:ring-brand-500"
              />
              <span className="text-sm text-gray-700">Ausbildungsbetrieb</span>
            </label>
          </div>
        </div>

        <div className="border-t pt-4">
          <label className="flex items-center gap-2 cursor-pointer">
            <input
              type="checkbox"
              checked={sendInvite}
              onChange={(e) => setSendInvite(e.target.checked)}
              className="rounded border-gray-300 text-brand-500 focus:ring-brand-500"
            />
            <span className="text-sm text-gray-700 font-medium">
              Einladungs-E-Mail senden
            </span>
          </label>
          <p className="text-xs text-gray-500 mt-1 ml-6">
            Das Mitglied erhält eine E-Mail mit einem Login-Link.
          </p>
        </div>

        {error && (
          <p className="text-sm text-red-600 bg-red-50 px-4 py-2 rounded-lg">
            {error.message}
          </p>
        )}

        <div className="flex gap-3 pt-2">
          <button
            type="submit"
            disabled={isPending}
            className="bg-brand-500 text-white px-6 py-2 rounded-lg text-sm font-medium hover:bg-brand-600 disabled:opacity-60 transition-colors"
          >
            {isPending ? 'Wird gespeichert...' : sendInvite ? 'Speichern & Einladung senden' : 'Speichern'}
          </button>
          <Link
            href="/dashboard/mitglieder"
            className="px-6 py-2 rounded-lg text-sm font-medium text-gray-700 hover:bg-gray-100 transition-colors"
          >
            Abbrechen
          </Link>
        </div>
      </form>
    </div>
  )
}