import React, { Fragment } from 'react'
import { get } from 'lodash'
import { Button } from '@pubsweet/ui'
import { connect } from 'react-redux'
import styled from 'styled-components'
import { th } from '@pubsweet/ui-toolkit'
import { actions } from 'pubsweet-client'
import { ConnectPage } from 'xpub-connect'
import { withJournal } from 'xpub-journal'
import { compose, withHandlers, withProps } from 'recompose'
import { getAdminUsers } from 'pubsweet-component-faraday-selectors'

import {
  Row,
  Text,
  Item,
  Label,
  OpenModal,
  Pagination,
  ActionLink,
  handleError,
  withFetching,
  withPagination,
} from 'pubsweet-component-faraday-ui'

import { AddUser } from './'
import { updateUserStatus, onSubmit } from './utils'

const Users = ({
  page,
  users,
  theme,
  history,
  journal,
  getUsers,
  isFetching,
  getUserRoles,
  itemsPerPage,
  deactivateUser,
  getStatusLabel,
  paginatedItems,
  toggleUserStatus,
  ...rest
}) => (
  <Fragment>
    <Row alignItems="center" justify="space-between" mb={1}>
      <Item alignItems="center">
        <ActionLink icon="arrow-left" mr={2} onClick={history.goBack}>
          Admin Dashboard
        </ActionLink>
        <AddUser
          form="add-user"
          getUsers={getUsers}
          modalKey="addUser"
          onSubmit={onSubmit}
        />
      </Item>

      <Pagination {...rest} itemsPerPage={itemsPerPage} page={page} />
    </Row>

    <Table>
      <thead>
        <tr>
          <th>
            <Label>Full Name</Label>
          </th>
          <th colSpan={2}>
            <Label>Email</Label>
          </th>
          <th>
            <Label>Affiliation</Label>
          </th>
          <th>
            <Label>Roles</Label>
          </th>
          <th>
            <Label>Status</Label>
          </th>
          <th>&nbsp;</th>
        </tr>
      </thead>
      <tbody>
        {paginatedItems.map(user => (
          <UserRow key={user.id}>
            <td>
              <Text pl={1}>{`${get(user, 'firstName', '')} ${get(
                user,
                'lastName',
                '',
              )}`}</Text>
            </td>
            <td colSpan={2}>
              <Text>{user.email}</Text>
            </td>
            <td>
              <Text>{user.affiliation}</Text>
            </td>
            <td>
              <Text customId>{getUserRoles(user)}</Text>
            </td>
            <td>
              <Text secondary>{getStatusLabel(user)}</Text>
            </td>

            <HiddenCell>
              <Item alignItems="center" justify="flex-end">
                <AddUser
                  edit
                  getUsers={getUsers}
                  modalKey={`edit-${user.id}`}
                  onSubmit={onSubmit}
                  user={user}
                />
                <OpenModal
                  isFetching={isFetching}
                  modalKey={`deactivate-${user.id}`}
                  onConfirm={deactivateUser(user)}
                  subtitle={`${user.firstName} ${user.lastName}`}
                  title={`Are you sure to ${
                    !user.isActive ? 'activate' : 'deactivate'
                  } user?`}
                >
                  {showModal => (
                    <ActivateButton
                      ml={1}
                      mr={1}
                      onClick={showModal}
                      size="small"
                    >
                      {!user.isActive ? 'ACTIVATE' : 'DEACTIVATE'}
                    </ActivateButton>
                  )}
                </OpenModal>
              </Item>
            </HiddenCell>
          </UserRow>
        ))}
      </tbody>
    </Table>
  </Fragment>
)

export default compose(
  ConnectPage(() => [actions.getUsers()]),
  connect(
    state => ({
      items: getAdminUsers(state),
    }),
    {
      getUsers: actions.getUsers,
    },
  ),
  withJournal,
  withFetching,
  withPagination,
  withProps(({ journal: { roles = {} } }) => ({
    roles: Object.keys(roles),
  })),
  withHandlers({
    getStatusLabel: () => ({ isConfirmed, isActive = true }) => {
      if (!isActive) {
        return 'INACTIVE'
      }
      return isConfirmed ? 'ACTIVE' : 'INVITED'
    },
    deactivateUser: ({ setFetching, getUsers }) => user => ({
      hideModal,
      setModalError,
    }) => {
      setFetching(true)
      updateUserStatus(user)
        .then(() => {
          setFetching(false)
          getUsers()
          hideModal()
        })
        .catch(err => {
          setFetching(false)
          handleError(setModalError)(err)
        })
    },
    getUserRoles: ({ journal: { roles = {} } }) => user => {
      const parsedRoles = Object.entries(roles)
        .reduce((acc, role) => (user[role[0]] ? [...acc, role[1]] : acc), [])
        .join(', ')

      return parsedRoles || 'Author'
    },
  }),
)(Users)

// #region styled-components
const Table = styled.table`
  border-collapse: collapse;

  & th,
  & td {
    border: none;
    text-align: start;
    vertical-align: middle;
    height: calc(${th('gridUnit')} * 5);
  }
`

const HiddenCell = styled.td`
  opacity: 0;
`

const UserRow = styled.tr`
  background-color: ${th('colorBackgroundHue2')};
  border-bottom: 1px solid ${th('colorBorder')};

  &:hover {
    background-color: ${th('colorBackgroundHue3')};

    ${HiddenCell} {
      opacity: 1;
    }
  }
`
const ActivateButton = styled(Button)`
  width: 90px;
`
// #endregion