import * as R from 'rambda';
import { wrapAction } from '../helper';
import { getRow, getCell } from '../../store/selectors';
import { EditContext, EditSchema, EditEvent } from '../index.data';

export const guards = {
  // 保证不是点击外部
  hasSelected: (context: EditContext, event: EditEvent) => {
    return !!event.selectedRow || !!event.selectedCell;
  },
};

export const actions = {
  // 第一次选择, 此时没有一行
  reSelect: wrapAction((context: EditContext, { selectedRow, selectedCell, state }: EditEvent) => {
    const _selectedRow = R.isNil(selectedRow)
      ? R.isNil(selectedCell)
        ? null
        : getCell(state!, selectedCell!)!.rowId!
      : selectedRow;
    return {
      selectionType: 'row',
      selectedRowRange: _selectedRow ? [_selectedRow, _selectedRow] : [],
    };
  }),

  // 移动过程, 此时一定选中了第一行, 并且第二行有可能是选中行, 也可能选中单元格(应转化为行)
  appendSelect: wrapAction(
    (context: EditContext, { selectedRow, selectedCell, state }: EditEvent) => {
      const lastRowId = context.selectedRowRange[0];
      const currentRowId = R.isNil(selectedRow)
        ? getCell(state!, selectedCell!)!.rowId!
        : selectedRow;
      const currentRow = getRow(state!, currentRowId);
      if (!currentRow) return {};
      const selectedRowRange = [lastRowId, currentRow.id];
      return {
        selectionType: 'row',
        selectedRowRange,
      };
    },
  ),
};