import React, { useState, useContext } from 'react';
import PropTypes from 'prop-types';
import { useHistory } from 'react-router-dom';
import Fuse from 'fuse.js';
import { useDispatch, useSelector } from 'react-redux';
import {
  IconName,
  ButtonLink,
  TextFieldSearch,
  Text,
  Box,
  Modal,
  ModalContent,
  ModalOverlay,
  ModalHeader,
} from '../../component-library';
import { AccountListItem, CreateAccount, ImportAccount } from '..';
import {
  BlockSize,
  Size,
  TextColor,
} from '../../../helpers/constants/design-system';
import { useI18nContext } from '../../../hooks/useI18nContext';
import { MetaMetricsContext } from '../../../contexts/metametrics';
import {
  getSelectedAccount,
  getMetaMaskAccountsOrdered,
  getConnectedSubjectsForAllAddresses,
  getOriginOfCurrentTab,
} from '../../../selectors';
import { toggleAccountMenu, setSelectedAccount } from '../../../store/actions';
import {
  MetaMetricsEventAccountType,
  MetaMetricsEventCategory,
  MetaMetricsEventName,
} from '../../../../shared/constants/metametrics';
import {
  CONNECT_HARDWARE_ROUTE,
  ///: BEGIN:ONLY_INCLUDE_IN(keyring-snaps)
  ADD_SNAP_ACCOUNT_ROUTE,
  ///: END:ONLY_INCLUDE_IN
  ///: BEGIN:ONLY_INCLUDE_IN(build-mmi)
  CUSTODY_ACCOUNT_ROUTE,
  ///: END:ONLY_INCLUDE_IN
} from '../../../helpers/constants/routes';
import { getEnvironmentType } from '../../../../app/scripts/lib/util';
import { ENVIRONMENT_TYPE_POPUP } from '../../../../shared/constants/app';

export const AccountListMenu = ({ onClose }) => {
  const t = useI18nContext();
  const trackEvent = useContext(MetaMetricsContext);
  const accounts = useSelector(getMetaMaskAccountsOrdered);
  const selectedAccount = useSelector(getSelectedAccount);
  const connectedSites = useSelector(getConnectedSubjectsForAllAddresses);
  const currentTabOrigin = useSelector(getOriginOfCurrentTab);
  const history = useHistory();
  const dispatch = useDispatch();

  const [searchQuery, setSearchQuery] = useState('');
  const [actionMode, setActionMode] = useState('');

  let searchResults = accounts;
  if (searchQuery) {
    const fuse = new Fuse(accounts, {
      threshold: 0.2,
      location: 0,
      distance: 100,
      maxPatternLength: 32,
      minMatchCharLength: 1,
      keys: ['name', 'address'],
    });
    fuse.setCollection(accounts);
    searchResults = fuse.search(searchQuery);
  }

  let title = t('selectAnAccount');
  if (actionMode === 'add') {
    title = t('addAccount');
  } else if (actionMode === 'import') {
    title = t('importAccount');
  }

  return (
    <Modal isOpen onClose={onClose}>
      <ModalOverlay />
      <ModalContent
        className="multichain-account-menu-popover"
        modalDialogProps={{ padding: 0, marginBottom: 0 }}
      >
        <ModalHeader
          paddingTop={4}
          paddingRight={4}
          paddingBottom={6}
          onClose={onClose}
          onBack={actionMode === '' ? null : () => setActionMode('')}
        >
          {title}
        </ModalHeader>
        {actionMode === 'add' ? (
          <Box
            paddingLeft={4}
            paddingRight={4}
            paddingBottom={4}
            paddingTop={0}
          >
            <CreateAccount
              onActionComplete={(confirmed) => {
                if (confirmed) {
                  dispatch(toggleAccountMenu());
                } else {
                  setActionMode('');
                }
              }}
            />
          </Box>
        ) : null}
        {actionMode === 'import' ? (
          <Box
            paddingLeft={4}
            paddingRight={4}
            paddingBottom={4}
            paddingTop={0}
          >
            <ImportAccount
              onActionComplete={(confirmed) => {
                if (confirmed) {
                  dispatch(toggleAccountMenu());
                } else {
                  setActionMode('');
                }
              }}
            />
          </Box>
        ) : null}
        {actionMode === '' ? (
          <Box>
            {/* Search box */}
            {accounts.length > 1 ? (
              <Box
                paddingLeft={4}
                paddingRight={4}
                paddingBottom={4}
                paddingTop={0}
              >
                <TextFieldSearch
                  size={Size.SM}
                  width={BlockSize.Full}
                  placeholder={t('searchAccounts')}
                  value={searchQuery}
                  onChange={(e) => setSearchQuery(e.target.value)}
                  clearButtonOnClick={() => setSearchQuery('')}
                  clearButtonProps={{
                    size: Size.SM,
                  }}
                  inputProps={{ autoFocus: true }}
                />
              </Box>
            ) : null}
            {/* Account list block */}
            <Box className="multichain-account-menu-popover__list">
              {searchResults.length === 0 && searchQuery !== '' ? (
                <Text
                  paddingLeft={4}
                  paddingRight={4}
                  color={TextColor.textMuted}
                  data-testid="multichain-account-menu-popover-no-results"
                >
                  {t('noAccountsFound')}
                </Text>
              ) : null}
              {searchResults.map((account) => {
                const connectedSite = connectedSites[account.address]?.find(
                  ({ origin }) => origin === currentTabOrigin,
                );

                return (
                  <AccountListItem
                    onClick={() => {
                      dispatch(toggleAccountMenu());
                      trackEvent({
                        category: MetaMetricsEventCategory.Navigation,
                        event: MetaMetricsEventName.NavAccountSwitched,
                        properties: {
                          location: 'Main Menu',
                        },
                      });
                      dispatch(setSelectedAccount(account.address));
                    }}
                    identity={account}
                    key={account.address}
                    selected={selectedAccount.address === account.address}
                    closeMenu={onClose}
                    connectedAvatar={connectedSite?.iconUrl}
                    connectedAvatarName={connectedSite?.name}
                  />
                );
              })}
            </Box>
            {/* Add / Import / Hardware */}
            <Box padding={4}>
              <Box marginBottom={4}>
                <ButtonLink
                  size={Size.SM}
                  startIconName={IconName.Add}
                  onClick={() => {
                    trackEvent({
                      category: MetaMetricsEventCategory.Navigation,
                      event: MetaMetricsEventName.AccountAddSelected,
                      properties: {
                        account_type: MetaMetricsEventAccountType.Default,
                        location: 'Main Menu',
                      },
                    });
                    setActionMode('add');
                  }}
                  data-testid="multichain-account-menu-popover-add-account"
                >
                  {t('addAccount')}
                </ButtonLink>
              </Box>
              <Box marginBottom={4}>
                <ButtonLink
                  size={Size.SM}
                  startIconName={IconName.Import}
                  onClick={() => {
                    trackEvent({
                      category: MetaMetricsEventCategory.Navigation,
                      event: MetaMetricsEventName.AccountAddSelected,
                      properties: {
                        account_type: MetaMetricsEventAccountType.Imported,
                        location: 'Main Menu',
                      },
                    });
                    setActionMode('import');
                  }}
                >
                  {t('importAccount')}
                </ButtonLink>
              </Box>
              <Box marginBottom={4}>
                <ButtonLink
                  size={Size.SM}
                  startIconName={IconName.Hardware}
                  onClick={() => {
                    dispatch(toggleAccountMenu());
                    trackEvent({
                      category: MetaMetricsEventCategory.Navigation,
                      event: MetaMetricsEventName.AccountAddSelected,
                      properties: {
                        account_type: MetaMetricsEventAccountType.Hardware,
                        location: 'Main Menu',
                      },
                    });
                    if (getEnvironmentType() === ENVIRONMENT_TYPE_POPUP) {
                      global.platform.openExtensionInBrowser(
                        CONNECT_HARDWARE_ROUTE,
                      );
                    } else {
                      history.push(CONNECT_HARDWARE_ROUTE);
                    }
                  }}
                >
                  {t('addHardwareWallet')}
                </ButtonLink>
              </Box>
              {
                ///: BEGIN:ONLY_INCLUDE_IN(keyring-snaps)
                <>
                  <Box marginTop={4}>
                    <ButtonLink
                      size={Size.SM}
                      startIconName={IconName.Snaps}
                      onClick={() => {
                        dispatch(toggleAccountMenu());
                        getEnvironmentType() === ENVIRONMENT_TYPE_POPUP
                          ? global.platform.openExtensionInBrowser(
                              ADD_SNAP_ACCOUNT_ROUTE,
                              null,
                              true,
                            )
                          : history.push(ADD_SNAP_ACCOUNT_ROUTE);
                      }}
                    >
                      {t('settingAddSnapAccount')}
                    </ButtonLink>
                  </Box>
                </>
                ///: END:ONLY_INCLUDE_IN
              }
              {
                ///: BEGIN:ONLY_INCLUDE_IN(build-mmi)
                <Box>
                  <ButtonLink
                    size={Size.SM}
                    startIconName={IconName.Custody}
                    onClick={() => {
                      dispatch(toggleAccountMenu());
                      trackEvent({
                        category: MetaMetricsEventCategory.Navigation,
                        event:
                          MetaMetricsEventName.UserClickedConnectCustodialAccount,
                      });
                      if (getEnvironmentType() === ENVIRONMENT_TYPE_POPUP) {
                        global.platform.openExtensionInBrowser(
                          CUSTODY_ACCOUNT_ROUTE,
                        );
                      } else {
                        history.push(CUSTODY_ACCOUNT_ROUTE);
                      }
                    }}
                  >
                    {t('connectCustodialAccountMenu')}
                  </ButtonLink>
                </Box>
                ///: END:ONLY_INCLUDE_IN
              }
            </Box>
          </Box>
        ) : null}
      </ModalContent>
    </Modal>
  );
};

AccountListMenu.propTypes = {
  /**
   * Function that executes when the menu closes
   */
  onClose: PropTypes.func.isRequired,
};