import { useLayoutEffect, useMemo, useState } from 'react';
import { useIntl } from 'react-intl';

import DataTable, { createColumnHelper, IConditionalStyle } from '@/components/ui/DataTable';
import SearchBar from '@/components/ui/SearchBar';
import { useConceptOptions } from '@/context/ConceptOptionsContext';
import { useLibrary } from '@/context/LibraryContext';
import { ILibraryItem, LibraryItemID, LibraryItemType } from '@/models/library';
import { ILibraryFilter } from '@/models/miscellaneous';

import FlexColumn from '../ui/FlexColumn';

interface PickSchemaProps {
  id?: string;
  initialFilter?: string;
  rows?: number;

  value?: LibraryItemID;
  baseFilter?: (target: ILibraryItem) => boolean;
  onSelectValue: (newValue: LibraryItemID) => void;
}

const columnHelper = createColumnHelper<ILibraryItem>();

function PickSchema({ id, initialFilter = '', rows = 4, value, onSelectValue, baseFilter }: PickSchemaProps) {
  const intl = useIntl();
  const { colors } = useConceptOptions();

  const library = useLibrary();
  const [filterText, setFilterText] = useState(initialFilter);
  const [filter, setFilter] = useState<ILibraryFilter>({});
  const [items, setItems] = useState<ILibraryItem[]>([]);

  useLayoutEffect(() => {
    setFilter({
      query: filterText,
      type: LibraryItemType.RSFORM
    });
  }, [filterText]);

  useLayoutEffect(() => {
    const filtered = library.applyFilter(filter);
    if (baseFilter) {
      setItems(filtered.filter(baseFilter));
    } else {
      setItems(filtered);
    }
  }, [library, filter, filter.query, baseFilter]);

  const columns = useMemo(
    () => [
      columnHelper.accessor('alias', {
        id: 'alias',
        header: 'Шифр',
        size: 150,
        minSize: 80,
        maxSize: 150
      }),
      columnHelper.accessor('title', {
        id: 'title',
        header: 'Название',
        size: 1200,
        minSize: 200,
        maxSize: 1200,
        cell: props => <div className='text-ellipsis'>{props.getValue()}</div>
      }),
      columnHelper.accessor('time_update', {
        id: 'time_update',
        header: 'Дата',
        cell: props => (
          <div className='whitespace-nowrap'>
            {new Date(props.getValue()).toLocaleString(intl.locale, {
              year: '2-digit',
              month: '2-digit',
              day: '2-digit'
            })}
          </div>
        )
      })
    ],
    [intl]
  );

  const conditionalRowStyles = useMemo(
    (): IConditionalStyle<ILibraryItem>[] => [
      {
        when: (item: ILibraryItem) => item.id === value,
        style: { backgroundColor: colors.bgSelected }
      }
    ],
    [value, colors]
  );

  return (
    <div className='border divide-y'>
      <SearchBar
        id={id ? `${id}__search` : undefined}
        noBorder
        value={filterText}
        onChange={newValue => setFilterText(newValue)}
      />
      <DataTable
        id={id}
        rows={rows}
        dense
        noHeader
        noFooter
        className='text-sm select-none cc-scroll-y'
        data={items}
        columns={columns}
        conditionalRowStyles={conditionalRowStyles}
        noDataComponent={
          <FlexColumn className='dense p-3 items-center min-h-[6rem]'>
            <p>Список схем пуст</p>
            <p>Измените параметры фильтра</p>
          </FlexColumn>
        }
        onRowClicked={rowData => onSelectValue(rowData.id)}
      />
    </div>
  );
}

export default PickSchema;