// components/staff/InviteForm.tsx
"use client";

import { useState } from "react";

type Org = { id: string; name: string };

export default function InviteForm({ orgs }: { orgs: Org[] }) {
  const [firstName, setFirstName] = useState("");
  const [email, setEmail] = useState("");
  const [orgId, setOrgId] = useState(orgs[0]?.id || "");
  const [role, setRole] = useState("ADMIN");
  const [submitting, setSubmitting] = useState(false);
  const [done, setDone] = useState<null | { email: string; orgName: string; role: string }>(null);
  const [error, setError] = useState<string | null>(null);

  async function onSubmit(e: React.FormEvent) {
    e.preventDefault();
    setError(null);
    setDone(null);
    setSubmitting(true);
    try {
      const res = await fetch("/api/staff/users/invite", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        credentials: "include",
        body: JSON.stringify({ firstName, email, orgId, role }),
      });
      const json = await res.json().catch(() => ({}));
      if (!res.ok) {
        setError(json?.error || "Erreur lors de la création de l’utilisateur");
      } else {
        const orgName = orgs.find((o) => o.id === orgId)?.name || "";
        setDone({ email, orgName, role });
        setFirstName("");
        setEmail("");
      }
    } catch (err: any) {
      setError(err?.message || "Erreur réseau");
    } finally {
      setSubmitting(false);
    }
  }

  return (
    <form onSubmit={onSubmit} className="space-y-6">
      <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
        <div>
          <label className="block text-sm font-medium">Prénom</label>
          <input
            className="mt-1 w-full rounded-lg border px-3 py-2"
            value={firstName}
            onChange={(e) => setFirstName(e.target.value)}
            placeholder="Prénom"
          />
        </div>
        <div>
          <label className="block text-sm font-medium">Adresse e-mail</label>
          <input
            type="email"
            className="mt-1 w-full rounded-lg border px-3 py-2"
            value={email}
            onChange={(e) => setEmail(e.target.value)}
            placeholder="ex: nom@domaine.fr"
            required
          />
        </div>
        <div>
          <label className="block text-sm font-medium">Client (organisation)</label>
          <select
            className="mt-1 w-full rounded-lg border px-3 py-2"
            value={orgId}
            onChange={(e) => setOrgId(e.target.value)}
            required
          >
            {orgs.map((o) => (
              <option key={o.id} value={o.id}>{o.name}</option>
            ))}
          </select>
        </div>
        <div>
          <label className="block text-sm font-medium">Niveau d’accès</label>
          <select
            className="mt-1 w-full rounded-lg border px-3 py-2"
            value={role}
            onChange={(e) => setRole(e.target.value)}
            required
          >
            <option value="SUPER_ADMIN">Super Admin</option>
            <option value="ADMIN">Admin</option>
            <option value="AGENT">Agent</option>
            <option value="COMPTA">Compta</option>
          </select>
          <p className="mt-1 text-xs text-slate-500">
            Un email d'activation sera automatiquement envoyé à l'utilisateur avec un lien sécurisé.
          </p>
        </div>
      </div>

      {error && <p className="text-sm text-red-600">{error}</p>}
      {done && (
        <div className="rounded-lg border border-emerald-200 bg-emerald-50 p-3 text-sm text-emerald-800">
          ✅ Invitation envoyée à <strong>{done.email}</strong> pour <strong>{done.orgName}</strong> ({done.role})
        </div>
      )}

      <div className="flex gap-3">
        <button
          type="submit"
          disabled={submitting}
          className="px-4 py-2 rounded-lg bg-emerald-600 text-white hover:bg-emerald-700 disabled:opacity-60"
        >
          {submitting ? "Envoi en cours…" : "Inviter l'utilisateur"}
        </button>
        <a href="/staff/utilisateurs" className="px-4 py-2 rounded-lg border">Annuler</a>
      </div>
    </form>
  );
}