import React, { useEffect, useState } from 'react';
import { useNavigate } from 'react-router-dom';
import { toast } from 'react-toastify';
import { Button, Card, Col, Form, Input, Row, Space, Switch } from 'antd';
import { shallowEqual, useDispatch, useSelector } from 'react-redux';
import { removeFromMenu, setMenuData } from '../../redux/slices/menu';
import { fetchNotifications } from '../../redux/slices/notification';
import blogService from '../../services/blog';
import LanguageList from '../../components/language-list';
import { useTranslation } from 'react-i18next';
import CkeEditor from '../../components/ckeEditor';
import { MODELS } from '../../constants';
import AiTranslation from '../../components/ai-translation/ai-translation';

export default function NotificationAdd() {
  const { t } = useTranslation();
  const { activeMenu } = useSelector((state) => state.menu, shallowEqual);
  const { languages, defaultLang } = useSelector(
    (state) => state.formLang,
    shallowEqual,
  );
  const dispatch = useDispatch();
  const [form] = Form.useForm();
  const navigate = useNavigate();
  const [loadingBtn, setLoadingBtn] = useState(false);

  useEffect(() => {
    return () => {
      const data = form.getFieldsValue(true);

      dispatch(setMenuData({ activeMenu, data }));
    };
  }, []);

  function getTranslationFields(values, field = 'title') {
    const list = languages.map((item) => ({
      [item.locale]: values[`${field}[${item.locale}]`],
    }));
    return Object.assign({}, ...list);
  }

  const onFinish = (values) => {
    const body = {
      type: 'notification',
      title: getTranslationFields(values),
      description: getTranslationFields(values, 'description'),
      short_desc: getTranslationFields(values, 'short_desc'),
    };

    setLoadingBtn(true);
    const nextUrl = 'notifications';
    blogService
      .create(body)
      .then(() => {
        toast.success(t('successfully.created'));
        dispatch(removeFromMenu({ ...activeMenu, nextUrl }));
        navigate(`/${nextUrl}`);
        dispatch(fetchNotifications({}));
      })
      .finally(() => setLoadingBtn(false));
  };

  return (
    <Card title={t('add.notification')} extra={<LanguageList />}>
      <Form
        name='notification-add'
        layout='vertical'
        onFinish={onFinish}
        form={form}
        initialValues={{
          active: true,
          ...activeMenu.data,
        }}
      >
        <Row gutter={12}>
          <Col span={12}>
            {languages.map((item) => (
              <Form.Item
                key={'title' + item.locale}
                label={t('title')}
                name={`title[${item.locale}]`}
                rules={[
                  {
                    validator(_, value) {
                      if (!value && item?.locale === defaultLang) {
                        return Promise.reject(new Error(t('required')));
                      } else if (value && value?.trim() === '') {
                        return Promise.reject(new Error(t('no.empty.space')));
                      } else if (value && value?.trim().length < 2) {
                        return Promise.reject(
                          new Error(t('must.be.at.least.2')),
                        );
                      }
                      return Promise.resolve();
                    },
                  },
                ]}
                hidden={item.locale !== defaultLang}
              >
                <AiTranslation
                  model={{
                    type: MODELS.Notification,
                    id: activeMenu.data?.id,
                  }}
                  fieldsMap={{
                    title: 'title',
                    description: 'short_desc',
                    short_desc: 'description',
                  }}
                  isTitleField
                >
                  <Input maxLength={50} />
                </AiTranslation>
              </Form.Item>
            ))}
          </Col>
          <Col span={24}>
            {languages.map((item) => (
              <Form.Item
                key={'short_desc' + item.locale}
                label={t('short.description')}
                name={`short_desc[${item.locale}]`}
                rules={[
                  {
                    validator(_, value) {
                      if (!value && item?.locale === defaultLang) {
                        return Promise.reject(new Error(t('required')));
                      } else if (value && value?.trim() === '') {
                        return Promise.reject(new Error(t('no.empty.space')));
                      } else if (value && value?.trim().length < 5) {
                        return Promise.reject(
                          new Error(t('must.be.at.least.5')),
                        );
                      }
                      return Promise.resolve();
                    },
                  },
                ]}
                hidden={item.locale !== defaultLang}
              >
                <AiTranslation
                  model={{
                    type: MODELS.Notification,
                    id: activeMenu.data?.id,
                  }}
                  fieldsMap={{
                    title: 'title',
                    description: 'short_desc',
                    short_desc: 'description',
                  }}
                >
                  <Input maxLength={50} />
                </AiTranslation>
              </Form.Item>
            ))}
          </Col>
          <Col span={24}>
            <CkeEditor form={form} languages={languages} lang={defaultLang} />
          </Col>
        </Row>
        <Space>
          <Button type='primary' htmlType='submit' loading={loadingBtn}>
            {t('save')}
          </Button>
        </Space>
      </Form>
    </Card>
  );
}
