'use client';

import { zodResolver } from '@hookform/resolvers/zod';
import { Trash } from 'lucide-react';
import { useTranslations } from 'next-intl';
import { type ChangeEvent, useRef } from 'react';
import { useForm } from 'react-hook-form';
import { toast } from 'sonner';

import { Button } from '@/components/ui/common/Button';
import { Form, FormField } from '@/components/ui/common/Form';
import { Skeleton } from '@/components/ui/common/Skeleton';
import { ChannelAvatar } from '@/components/ui/elements/ChannelAvatar';
import { ConfirmModal } from '@/components/ui/elements/ConfirmModal';
import { FormWrapper } from '@/components/ui/elements/FormWrapper';
import {
  useChangeProfileAvatarMutation,
  useRemoveProfileAvatarMutation,
} from '@/graphql/generated/output';
import { useCurrent } from '@/hooks/useCurrent';
import {
  type TypeUploadFileSchema,
  uploadFileSchema,
} from '@/schemas/upload-file.schema';

export const ChangeAvatarFormSkeleton = () => <Skeleton className="h-52 w-full" />;

export const ChangeAvatarForm = () => {
  const t = useTranslations('dashboard.settings.profile.avatar');

  const { user, isLoadingProfile, refetch } = useCurrent();

  const inputRef = useRef<HTMLInputElement>(null);

  const form = useForm<TypeUploadFileSchema>({
    resolver: zodResolver(uploadFileSchema),
    values: {
      file: user?.avatar ?? '',
    },
  });

  const [update, { loading: isLoadingUpdate }] = useChangeProfileAvatarMutation({
    onCompleted() {
      void refetch();
      toast.success(t('successUpdateMessage'));
    },
    onError() {
      toast.error(t('errorUpdateMessage'));
    },
  });

  const [remove, { loading: isLoadingRemove }] = useRemoveProfileAvatarMutation({
    onCompleted() {
      void refetch();
      toast.success(t('successRemoveMessage'));
    },
    onError() {
      toast.error(t('errorRemoveMessage'));
    },
  });

  function handleImageChange(event: ChangeEvent<HTMLInputElement>) {
    const file = event.target.files?.[0];

    if (file) {
      void update({ variables: { avatar: file } });
      form.setValue('file', file);
    }
  }

  if (!user) {
    return null;
  }


  return isLoadingProfile
    ? (
      <ChangeAvatarFormSkeleton />
    )
    : (
      <FormWrapper heading={t('heading')}>
        <Form {...form}>
          <FormField
            control={form.control}
            name="file"
            render={({ field }) => (
              <div className="px-5 pb-5">
                <div className="w-full items-center space-x-6 lg:flex">
                  <ChannelAvatar
                    channel={{
                      name: user.name,
                      avatar:
                      field.value instanceof File
                        ? URL.createObjectURL(
                          field.value,
                        )
                        : field.value,
                    }}
                    size="xl"
                  />

                  <div className="space-y-3">
                    <div className="flex items-center gap-x-3">
                      <input
                        ref={inputRef}
                        className="hidden"
                        type="file"
                        onChange={handleImageChange}
                      />

                      <Button
                        disabled={
                          isLoadingUpdate
                          || isLoadingRemove
                        }
                        variant="secondary"
                        onClick={() => inputRef.current?.click()}
                      >
                        {t('updateButton')}
                      </Button>

                      {user?.avatar
                        ? (
                          <ConfirmModal
                            heading={t(
                              'confirmModal.heading',
                            )}
                            message={t(
                              'confirmModal.message',
                            )}
                            onConfirm={async () => remove()}
                          >
                            <Button
                              disabled={
                                isLoadingUpdate
                                || isLoadingRemove
                              }
                              size="lgIcon"
                              variant="ghost"
                            >
                              <Trash className="size-4" />
                            </Button>
                          </ConfirmModal>
                        )
                        : null}
                    </div>

                    <p className="text-sm text-muted-foreground">
                      {t('info')}
                    </p>
                  </div>
                </div>
              </div>
            )}
          />
        </Form>
      </FormWrapper>
    );
};