text: import React from 'react'
  import PropTypes from 'prop-types'
  
  import {
    mergeProps,
    applyPropHooks,
    ensurePluginOrder,
    safeUseLayoutEffect,
  } from '../utils'
  import { addActions, actions } from '../actions'
  import { defaultState } from '../hooks/useTable'
  
  defaultState.selectedRowPaths = []
  
  addActions('toggleRowSelected', 'toggleRowSelectedAll')
  
  const propTypes = {
    manualRowSelectedKey: PropTypes.string,
  }
  
  export const useRowSelect = hooks => {
    hooks.getToggleRowSelectedProps = []
    hooks.getToggleAllRowsSelectedProps = []
    hooks.useRows.push(useRows)
    hooks.useMain.push(useMain)
  }
  
  useRowSelect.pluginName = 'useRowSelect'
  
  function useRows(rows, instance) {
    PropTypes.checkPropTypes(propTypes, instance, 'property', 'useRowSelect')
  
    const {
      state: { selectedRowPaths },
    } = instance
  
    instance.selectedFlatRows = React.useMemo(() => {
      const selectedFlatRows = []
      rows.forEach(row => {
        if (row.isAggregated) {
          const subRowPaths = row.subRows.map(row => row.path)
          row.isSelected = subRowPaths.every(path =>
            selectedRowPaths.includes(path.join('.'))
          )
        } else {
          row.isSelected = selectedRowPaths.includes(row.path.join('.'))
        }
        if (row.isSelected) {
          selectedFlatRows.push(row)
        }
      })
  
      return selectedFlatRows
    }, [rows, selectedRowPaths])
  
    return rows
  }
  
  function useMain(instance) {
    PropTypes.checkPropTypes(propTypes, instance, 'property', 'useRowSelect')
  
    const {
      hooks,
      manualRowSelectedKey = 'isSelected',
      disableSelectedRowsResetOnDataChange,
      plugins,
      flatRows,
      data,
      state: { selectedRowPaths },
      setState,
    } = instance
  
    ensurePluginOrder(
      plugins,
      ['useFilters', 'useGroupBy', 'useSortBy'],
      'useRowSelect',
      []
    )
  
    const flatRowPaths = flatRows.map(d => d.path.join('.'))
  
    let isAllRowsSelected = !!flatRowPaths.length && !!selectedRowPaths.length
  
    if (isAllRowsSelected) {
      if (flatRowPaths.some(d => !selectedRowPaths.includes(d))) {
        isAllRowsSelected = false
      }
    }
  
    const isRowSelectedMountedRef = React.useRef()
  
    // Bypass any effects from firing when this changes
    const disableSelectedRowsResetOnDataChangeRef = React.useRef()
    disableSelectedRowsResetOnDataChangeRef.current = disableSelectedRowsResetOnDataChange
  
    safeUseLayoutEffect(() => {
      if (
        isRowSelectedMountedRef.current &&
        !disableSelectedRowsResetOnDataChangeRef.current
      ) {
        setState(
          old => ({
            ...old,
            selectedRowPaths: [],
          }),
          actions.pageChange
        )
      }
      isRowSelectedMountedRef.current = true
    }, [setState, data])
  
    const toggleRowSelectedAll = set => {
      setState(old => {
        const selectAll = typeof set !== 'undefined' ? set : !isAllRowsSelected
        return {
          ...old,
          selectedRowPaths: selectAll ? flatRowPaths : [],
        }
      }, actions.toggleRowSelectedAll)
    }
  
    const updateParentRow = (selectedRowPaths, path) => {
      const parentPath = path.slice(0, path.length - 1)
      const parentKey = parentPath.join('.')
      const selected =
        flatRowPaths.filter(rowPath => {
          const path = rowPath
          return (
            path !== parentKey &&
            path.startsWith(parentKey) &&
            !selectedRowPaths.has(path)
          )
        }).length === 0
      if (selected) {
        selectedRowPaths.add(parentKey)
      } else {
        selectedRowPaths.delete(parentKey)
      }
      if (parentPath.length > 1) updateParentRow(selectedRowPaths, parentPath)
    }
  
    const toggleRowSelected = (path, set) => {
      const key = path.join('.')
      const childRowPrefixKey = [key, '.'].join('')
  
      return setState(old => {
        // Join the paths of deep rows
        // to make a key, then manage all of the keys
        // in a flat object
        const exists = old.selectedRowPaths.includes(key)
        const shouldExist = typeof set !== 'undefined' ? set : !exists
        let newSelectedRows = new Set(old.selectedRowPaths)
  
        if (!exists && shouldExist) {
          flatRowPaths.forEach(rowPath => {
            if (rowPath === key || rowPath.startsWith(childRowPrefixKey)) {
              newSelectedRows.add(rowPath)
            }
          })
        } else if (exists && !shouldExist) {
          flatRowPaths.forEach(rowPath => {
            if (rowPath === key || rowPath.startsWith(childRowPrefixKey)) {
              newSelectedRows.delete(rowPath)
            }
          })
        } else {
          return old
        }
  
        // If the row is a subRow update
        // its parent row to reflect changes
        if (path.length > 1) updateParentRow(newSelectedRows, path)
  
        return {
          ...old,
          selectedRowPaths: [...newSelectedRows.values()],
        }
      }, actions.toggleRowSelected)
    }
  
    const getToggleAllRowsSelectedProps = props => {
      return mergeProps(
        {
          onChange: e => {
            toggleRowSelectedAll(e.target.checked)
          },
          style: {
            cursor: 'pointer',
          },
          checked: isAllRowsSelected,
          title: 'Toggle All Rows Selected',
        },
        applyPropHooks(instance.hooks.getToggleAllRowsSelectedProps, instance),
        props
      )
    }
  
    hooks.prepareRow.push(row => {
      // Aggregate rows have entirely different select logic
      if (row.isAggregated) {
        const subRowPaths = row.subRows.map(row => row.path)
        row.toggleRowSelected = set => {
          set = typeof set !== 'undefined' ? set : !row.isSelected
          subRowPaths.forEach(path => {
            toggleRowSelected(path, set)
          })
        }
        row.getToggleRowSelectedProps = props => {
          let checked = false
  
          if (row.original && row.original[manualRowSelectedKey]) {
            checked = true
          } else {
            checked = row.isSelected
          }
  
          return mergeProps(
            {
              onChange: e => {
                row.toggleRowSelected(e.target.checked)
              },
              style: {
                cursor: 'pointer',
              },
              checked,
              title: 'Toggle Row Selected',
            },
            applyPropHooks(
              instance.hooks.getToggleRowSelectedProps,
              row,
              instance
            ),
            props
          )
        }
      } else {
        row.toggleRowSelected = set => toggleRowSelected(row.path, set)
        row.getToggleRowSelectedProps = props => {
          let checked = false
  
          if (row.original && row.original[manualRowSelectedKey]) {
            checked = true
          } else {
            checked = row.isSelected
          }
  
          return mergeProps(
            {
              onChange: e => {
                row.toggleRowSelected(e.target.checked)
              },
              style: {
                cursor: 'pointer',
              },
              checked,
              title: 'Toggle Row Selected',
            },
            applyPropHooks(
              instance.hooks.getToggleRowSelectedProps,
              row,
              instance
            ),
            props
          )
        }
      }
  
      return row
    })
  
    return {
      ...instance,
      toggleRowSelected,
      toggleRowSelectedAll,
      getToggleAllRowsSelectedProps,
      isAllRowsSelected,
    }
  }
  