'use client';

import clsx from 'clsx';
import { useCallback, useLayoutEffect, useMemo, useState } from 'react';

import DataTable, { createColumnHelper,IConditionalStyle, VisibilityState } from '@/components/DataTable';
import ConstituentaBadge from '@/components/Shared/ConstituentaBadge';
import { useConceptTheme } from '@/context/ThemeContext';
import useWindowSize from '@/hooks/useWindowSize';
import { IConstituenta } from '@/models/rsform';
import { isMockCst } from '@/models/rsformAPI';
import { prefixes } from '@/utils/constants';
import { describeConstituenta } from '@/utils/labels';

interface ConstituentsTableProps {
  items: IConstituenta[]
  activeID?: number
  onOpenEdit: (cstID: number) => void
  denseThreshold?: number
  maxHeight: string
}

const columnHelper = createColumnHelper<IConstituenta>();

function ConstituentsTable({
  items, activeID, onOpenEdit,
  maxHeight,
  denseThreshold = 9999
}: ConstituentsTableProps) {
  const { colors } = useConceptTheme();
  const windowSize = useWindowSize();

  const [columnVisibility, setColumnVisibility] = useState<VisibilityState>({'expression': true});

  useLayoutEffect(
  () => {
    setColumnVisibility(prev => {
      const newValue = (windowSize.width ?? 0) >= denseThreshold;
      if (newValue === prev['expression']) {
        return prev;
      } else {
        return {'expression': newValue}
      }
    });
  }, [windowSize, denseThreshold]);

  const handleRowClicked = useCallback(
  (cst: IConstituenta) => {
    if (!isMockCst(cst)) {
      onOpenEdit(cst.id);
    }
  }, [onOpenEdit]);

  const columns = useMemo(
  () => [
    columnHelper.accessor('alias', {
      id: 'alias',
      header: 'Имя',
      size: 65,
      minSize: 65,
      footer: undefined,
      cell: props =>
        <ConstituentaBadge 
          theme={colors}
          value={props.row.original}
          prefixID={prefixes.cst_side_table}
        />
    }),
    columnHelper.accessor(cst => describeConstituenta(cst), {
      id: 'description',
      header: 'Описание',
      size: 1000,
      minSize: 250,
      maxSize: 1000,
      cell: props => 
        <div style={{
          fontSize: 12,
          color: isMockCst(props.row.original) ? colors.fgWarning : undefined
        }}>
          {props.getValue()}
        </div>
    }),
    columnHelper.accessor('definition_formal', {
      id: 'expression',
      header: 'Выражение',
      size: 2000,
      minSize: 0,
      maxSize: 2000,
      enableHiding: true,
      cell: props => 
        <div style={{
          fontSize: 12,
          color: isMockCst(props.row.original) ? colors.fgWarning : undefined
        }}>
          {props.getValue()}
        </div>
    })
  ], [colors]);
  
    const conditionalRowStyles = useMemo(
    (): IConditionalStyle<IConstituenta>[] => [
      {
        when: (cst: IConstituenta) => cst.id === activeID,
        style: {
          backgroundColor: colors.bgSelected
        },
      }
    ], [activeID, colors]);
    
  return (
  <DataTable dense noFooter
    className='overflow-y-auto text-sm select-none overscroll-none'
    style={{maxHeight : maxHeight}}
    data={items}
    columns={columns}
    conditionalRowStyles={conditionalRowStyles}
    headPosition='0'

    enableHiding
    columnVisibility={columnVisibility}
    onColumnVisibilityChange={setColumnVisibility}

    noDataComponent={
      <div className={clsx(
        'min-h-[5rem]',
        'p-2',
        'text-center',
        'select-none'
      )}>
        <p>Список конституент пуст</p>
        <p>Измените параметры фильтра</p>
      </div>
    }

    onRowClicked={handleRowClicked}
  />);
}

export default ConstituentsTable;