'use client';

import { useState, useTransition } from 'react';
import { Modal } from '@/components/ui/Modal';
import { Input } from '@/components/ui/Input';
import { Button } from '@/components/ui/Button';
import { Badge } from '@/components/ui/Badge';
import { Avatar } from '@/components/ui/Avatar';
import { shareMotivatorSession, removeMotivatorShare } from '@/actions/moving-motivators';
import type { ShareRole } from '@prisma/client';

interface ShareUser {
  id: string;
  name: string | null;
  email: string;
}

interface Share {
  id: string;
  role: ShareRole;
  user: ShareUser;
  createdAt: Date;
}

interface MotivatorShareModalProps {
  isOpen: boolean;
  onClose: () => void;
  sessionId: string;
  sessionTitle: string;
  shares: Share[];
  isOwner: boolean;
}

export function MotivatorShareModal({
  isOpen,
  onClose,
  sessionId,
  sessionTitle,
  shares,
  isOwner,
}: MotivatorShareModalProps) {
  const [email, setEmail] = useState('');
  const [role, setRole] = useState<ShareRole>('EDITOR');
  const [error, setError] = useState<string | null>(null);
  const [isPending, startTransition] = useTransition();

  async function handleShare(e: React.FormEvent) {
    e.preventDefault();
    setError(null);

    startTransition(async () => {
      const result = await shareMotivatorSession(sessionId, email, role);
      if (result.success) {
        setEmail('');
      } else {
        setError(result.error || 'Erreur lors du partage');
      }
    });
  }

  async function handleRemove(userId: string) {
    startTransition(async () => {
      await removeMotivatorShare(sessionId, userId);
    });
  }

  return (
    <Modal isOpen={isOpen} onClose={onClose} title="Partager la session">
      <div className="space-y-6">
        {/* Session info */}
        <div>
          <p className="text-sm text-muted">Session Moving Motivators</p>
          <p className="font-medium text-foreground">{sessionTitle}</p>
        </div>

        {/* Share form (only for owner) */}
        {isOwner && (
          <form onSubmit={handleShare} className="space-y-4">
            <div className="flex gap-2">
              <Input
                type="email"
                placeholder="Email de l'utilisateur"
                value={email}
                onChange={(e) => setEmail(e.target.value)}
                className="flex-1"
                required
              />
              <select
                value={role}
                onChange={(e) => setRole(e.target.value as ShareRole)}
                className="rounded-lg border border-border bg-input px-3 py-2 text-sm text-foreground"
              >
                <option value="EDITOR">Éditeur</option>
                <option value="VIEWER">Lecteur</option>
              </select>
            </div>

            {error && <p className="text-sm text-destructive">{error}</p>}

            <Button type="submit" disabled={isPending || !email} className="w-full">
              {isPending ? 'Partage...' : 'Partager'}
            </Button>
          </form>
        )}

        {/* Current shares */}
        <div className="space-y-2">
          <p className="text-sm font-medium text-foreground">Collaborateurs ({shares.length})</p>

          {shares.length === 0 ? (
            <p className="text-sm text-muted">Aucun collaborateur pour le moment</p>
          ) : (
            <ul className="space-y-2">
              {shares.map((share) => (
                <li
                  key={share.id}
                  className="flex items-center justify-between rounded-lg border border-border bg-card p-3"
                >
                  <div className="flex items-center gap-3">
                    <Avatar email={share.user.email} name={share.user.name} size={32} />
                    <div>
                      <p className="text-sm font-medium text-foreground">
                        {share.user.name || share.user.email}
                      </p>
                      {share.user.name && <p className="text-xs text-muted">{share.user.email}</p>}
                    </div>
                  </div>

                  <div className="flex items-center gap-2">
                    <Badge variant={share.role === 'EDITOR' ? 'primary' : 'default'}>
                      {share.role === 'EDITOR' ? 'Éditeur' : 'Lecteur'}
                    </Badge>
                    {isOwner && (
                      <button
                        onClick={() => handleRemove(share.user.id)}
                        disabled={isPending}
                        className="rounded p-1 text-muted hover:bg-destructive/10 hover:text-destructive"
                        title="Retirer l'accès"
                      >
                        <svg
                          xmlns="http://www.w3.org/2000/svg"
                          viewBox="0 0 20 20"
                          fill="currentColor"
                          className="h-4 w-4"
                        >
                          <path
                            fillRule="evenodd"
                            d="M8.75 1A2.75 2.75 0 006 3.75v.443c-.795.077-1.584.176-2.365.298a.75.75 0 10.23 1.482l.149-.022.841 10.518A2.75 2.75 0 007.596 19h4.807a2.75 2.75 0 002.742-2.53l.841-10.52.149.023a.75.75 0 00.23-1.482A41.03 41.03 0 0014 4.193V3.75A2.75 2.75 0 0011.25 1h-2.5zM10 4c.84 0 1.673.025 2.5.075V3.75c0-.69-.56-1.25-1.25-1.25h-2.5c-.69 0-1.25.56-1.25 1.25v.325C8.327 4.025 9.16 4 10 4zM8.58 7.72a.75.75 0 00-1.5.06l.3 7.5a.75.75 0 101.5-.06l-.3-7.5zm4.34.06a.75.75 0 10-1.5-.06l-.3 7.5a.75.75 0 101.5.06l.3-7.5z"
                            clipRule="evenodd"
                          />
                        </svg>
                      </button>
                    )}
                  </div>
                </li>
              ))}
            </ul>
          )}
        </div>

        {/* Help text */}
        <div className="rounded-lg bg-primary/5 p-3">
          <p className="text-xs text-muted">
            <strong>Éditeur</strong> : peut modifier les cartes et leurs positions
            <br />
            <strong>Lecteur</strong> : peut uniquement consulter
          </p>
        </div>
      </div>
    </Modal>
  );
}