import { useState } from 'react';
import { useForm } from 'react-hook-form';
import { zodResolver } from '@hookform/resolvers/zod';
import { z } from 'zod';
// Ensure PlaylistError is exported from service or assume general Error if not available
import { createPlaylist } from '../services/playlistService';
import { Dialog } from '@/components/ui/dialog';
import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import { Label } from '@/components/ui/label';
import { Textarea } from '@/components/ui/textarea';
import { Checkbox } from '@/components/ui/checkbox';
import { useToast } from '@/hooks/useToast';
import { Loader2 } from 'lucide-react';

const createPlaylistSchema = z.object({
  title: z
    .string()
    .min(1, 'Le titre est requis')
    .max(200, 'Le titre ne peut pas dépasser 200 caractères'),
  description: z
    .string()
    .max(1000, 'La description ne peut pas dépasser 1000 caractères')
    .optional(),
  is_public: z.boolean().default(true),
});

type CreatePlaylistFormData = z.infer<typeof createPlaylistSchema>;

interface CreatePlaylistDialogProps {
  open: boolean;
  onOpenChange: (open: boolean) => void;
  onCreated?: () => void;
}

export function CreatePlaylistDialog({
  open,
  onOpenChange,
  onCreated,
}: CreatePlaylistDialogProps) {
  const [isSubmitting, setIsSubmitting] = useState(false);
  const { success: showSuccess, error: showError } = useToast();

  const {
    register,
    handleSubmit,
    formState: { errors },
    reset,
    watch,
  } = useForm<CreatePlaylistFormData>({
    resolver: zodResolver(createPlaylistSchema),
    defaultValues: {
      title: '',
      description: '',
      is_public: true,
    },
  });

  const isPublic = watch('is_public');

  const onSubmit = async (data: CreatePlaylistFormData) => {
    setIsSubmitting(true);
    try {
      await createPlaylist({
        title: data.title,
        description: data.description || undefined,
        is_public: data.is_public,
      });
      showSuccess('Playlist créée : Votre playlist a été créée avec succès.');
      reset();
      onOpenChange(false);
      onCreated?.();
    } catch (error) {
      console.error('Failed to create playlist:', error);
      showError(
        error instanceof Error
          ? error.message
          : 'Impossible de créer la playlist',
      );
    } finally {
      setIsSubmitting(false);
    }
  };

  const handleCancel = () => {
    reset();
    onOpenChange(false);
  };

  return (
    <Dialog
      open={open}
      onClose={handleCancel}
      title="Créer une playlist"
      variant="default"
      aria-label="Dialogue de création de playlist"
    >
      <form onSubmit={handleSubmit(onSubmit)} className="space-y-4">
        <div className="space-y-2">
          <Label htmlFor="title">
            Titre{' '}
            <span className="text-destructive" aria-hidden="true">
              *
            </span>
          </Label>
          <Input
            id="title"
            {...register('title')}
            placeholder="Ma nouvelle playlist"
            disabled={isSubmitting}
            aria-invalid={errors.title ? 'true' : 'false'}
            aria-describedby={errors.title ? 'create-title-error' : undefined}
            aria-required="true"
          />
          {errors.title && (
            <p
              id="create-title-error"
              className="text-sm text-destructive"
              role="alert"
            >
              {errors.title.message}
            </p>
          )}
        </div>

        <div className="space-y-2">
          <Label htmlFor="description">Description</Label>
          <Textarea
            id="description"
            {...register('description')}
            placeholder="Décrivez votre playlist..."
            rows={3}
            disabled={isSubmitting}
            aria-invalid={errors.description ? 'true' : 'false'}
            aria-describedby={
              errors.description ? 'create-description-error' : undefined
            }
          />
          {errors.description && (
            <p
              id="create-description-error"
              className="text-sm text-destructive"
              role="alert"
            >
              {errors.description.message}
            </p>
          )}
        </div>

        <div className="flex items-center space-x-2">
          <Checkbox
            id="is_public"
            {...register('is_public')}
            checked={isPublic}
            disabled={isSubmitting}
            aria-checked={isPublic}
          />
          <Label htmlFor="is_public" className="cursor-pointer">
            Playlist publique
          </Label>
        </div>

        <div className="flex justify-end gap-2 pt-4">
          <Button
            type="button"
            variant="outline"
            onClick={handleCancel}
            disabled={isSubmitting}
            aria-label="Annuler la création de playlist"
          >
            Annuler
          </Button>
          <Button
            type="submit"
            disabled={isSubmitting}
            aria-label="Créer la playlist"
          >
            {isSubmitting && (
              <Loader2
                className="w-4 h-4 mr-2 animate-spin"
                aria-hidden="true"
              />
            )}
            Créer
          </Button>
        </div>
      </form>
    </Dialog>
  );
}