/* global window */

import React, { Component } from 'react';
import PropTypes from 'prop-types';
import get from 'lodash/get';
import Immutable from 'immutable';
import qs from 'qs';
import CheckboxInput from 'cspace-input/lib/components/CheckboxInput';
import ErrorPage from './ErrorPage';
import Pager from '../search/Pager';
import SearchResultSidebar from '../search/SearchResultSidebar';
import SearchResultSummary from '../search/SearchResultSummary';
import SearchResultTitleBar from '../search/SearchResultTitleBar';
import SelectBar from '../search/SelectBar';
import WatchedSearchResultTableContainer from '../../containers/search/WatchedSearchResultTableContainer';
import {
  deriveSearchType,
  getListTypeFromResult,
  createPageSizeChangeHandler,
  createPageChangeHandler,
  extractAdvancedSearchGroupedTerms,
  createSortByHandler,
  createSortDirHandler,
  normalizeSearchQueryParams,
} from '../../helpers/searchHelpers';
import { SEARCH_RESULT_PAGE_SEARCH_NAME } from '../../constants/searchNames';

import {
  validateLocation,
} from '../../helpers/configHelpers';

import styles from '../../../styles/cspace-ui/SearchResultPage.css';
import pageBodyStyles from '../../../styles/cspace-ui/PageBody.css';
import ExportResults from '../search/ExportResults';
import RelateResults from '../search/RelateResults';
import SortBy from '../search/SortBy';

// const stopPropagation = (event) => {
//   event.stopPropagation();
// };

const propTypes = {
  isSidebarOpen: PropTypes.bool,
  history: PropTypes.shape({
    push: PropTypes.func,
    replace: PropTypes.func,
  }),
  location: PropTypes.shape({
    pathname: PropTypes.string,
    search: PropTypes.string,
    state: PropTypes.object,
  }),
  match: PropTypes.shape({
    params: PropTypes.object,
  }),
  perms: PropTypes.instanceOf(Immutable.Map),
  preferredPageSize: PropTypes.number,
  search: PropTypes.func,
  selectedItems: PropTypes.instanceOf(Immutable.Map),
  setPreferredPageSize: PropTypes.func,
  setSearchPageAdvanced: PropTypes.func,
  setSearchPageAdvancedSearchTerms: PropTypes.func,
  setSearchPageAdvancedLimitBy: PropTypes.func,
  setSearchPageKeyword: PropTypes.func,
  setSearchPageRecordType: PropTypes.func,
  setSearchPageVocabulary: PropTypes.func,
  setAllItemsSelected: PropTypes.func,
  onItemSelectChange: PropTypes.func,
};

const defaultProps = {
  isSidebarOpen: true,
};

const contextTypes = {
  config: PropTypes.shape({
    recordTypes: PropTypes.object,
  }).isRequired,
};

export default class SearchResultPage extends Component {
  constructor() {
    super();

    this.handleCheckboxClick = this.handleCheckboxClick.bind(this);
    this.handleCheckboxCommit = this.handleCheckboxCommit.bind(this);
    this.handleEditSearchLinkClick = this.handleEditSearchLinkClick.bind(this);
    this.handleModalCancelButtonClick = this.handleModalCancelButtonClick.bind(this);
    this.handleModalCloseButtonClick = this.handleModalCloseButtonClick.bind(this);
    this.handlePageChange = this.handlePageChange.bind(this);
    this.handlePageSizeChange = this.handlePageSizeChange.bind(this);
    this.handleSortChange = this.handleSortChange.bind(this);
    this.renderCheckbox = this.renderCheckbox.bind(this);
    this.renderFooter = this.renderFooter.bind(this);
    this.renderHeader = this.renderHeader.bind(this);
    this.search = this.search.bind(this);
  }

  componentDidMount() {
    if (!this.normalizeQuery()) {
      const {
        location,
        setPreferredPageSize,
      } = this.props;

      if (setPreferredPageSize) {
        const {
          search,
        } = location;

        const query = qs.parse(search.substring(1));

        setPreferredPageSize(parseInt(query.size, 10));
      }

      this.search();
    }
  }

  componentDidUpdate(prevProps) {
    const {
      location,
      match,
      perms,
    } = this.props;

    const {
      location: prevLocation,
      match: prevMatch,
      perms: prevPerms,
    } = prevProps;

    const { params } = match;
    const { params: prevParams } = prevMatch;

    if (
      perms !== prevPerms
      || params.recordType !== prevParams.recordType
      || params.vocabulary !== prevParams.vocabulary
      || params.csid !== prevParams.csid
      || params.subresource !== prevParams.subresource
      || location.search !== prevLocation.search
    ) {
      if (!this.normalizeQuery()) {
        const {
          setPreferredPageSize,
        } = this.props;

        if (setPreferredPageSize) {
          const {
            search,
          } = location;

          const query = qs.parse(search.substring(1));

          setPreferredPageSize(parseInt(query.size, 10));
        }

        this.search();
      }
    }
  }

  handleCheckboxClick(event) {
    // DRYD-252: Elaborate workaround for Firefox. When a checkbox is a child of an a, clicking on
    // the checkbox navigates to the link. So we have to handle the checkbox click, and prevent the
    // default. This prevents the navigation, but also prevents the checkbox state from changing.
    // So we also have to manually commit the change. The Firefox bug has been open for 17 years
    // now. https://bugzilla.mozilla.org/show_bug.cgi?id=62151

    event.preventDefault();
    event.stopPropagation();

    const checkbox = event.currentTarget.querySelector('input[type="checkbox"]');
    const index = checkbox.dataset.name;

    window.setTimeout(() => {
      this.handleCheckboxCommit([index], !checkbox.checked);
    }, 0);
  }

  handleCheckboxCommit(path, value) {
    const index = parseInt(path[0], 10);
    const selected = value;

    const {
      onItemSelectChange,
    } = this.props;

    const {
      config,
    } = this.context;

    if (onItemSelectChange) {
      const searchDescriptor = this.getSearchDescriptor();
      const {
        listType,
      } = deriveSearchType(config, SEARCH_RESULT_PAGE_SEARCH_NAME, searchDescriptor);

      onItemSelectChange(
        config, SEARCH_RESULT_PAGE_SEARCH_NAME, searchDescriptor, listType, index, selected,
      );
    }
  }

  handleEditSearchLinkClick() {
    // Transfer the search descriptor from this search to the search page. If this search
    // originated from the search page, the original descriptor will be in the location state.
    // Otherwise, build it from the URL params. If present, the search descriptor from the
    // originating search page will be more complete than one constructed from the URL; for
    // example, it will contain fields that are blank, which will have been removed from the
    // URL, to reduce the size.

    const {
      location,
      setSearchPageAdvanced,
      setSearchPageAdvancedLimitBy,
      setSearchPageAdvancedSearchTerms,
      setSearchPageKeyword,
      setSearchPageRecordType,
      setSearchPageVocabulary,
    } = this.props;

    const origin = get(location.state, 'originSearchPage');

    const searchDescriptor = origin
      ? Immutable.fromJS(origin.searchDescriptor)
      : this.getSearchDescriptor();

    const searchQuery = searchDescriptor.get('searchQuery');

    if (setSearchPageRecordType) {
      setSearchPageRecordType(searchDescriptor.get('recordType'));
    }

    if (setSearchPageVocabulary) {
      setSearchPageVocabulary(searchDescriptor.get('vocabulary'));
    }

    if (setSearchPageKeyword) {
      setSearchPageKeyword(searchQuery.get('kw'));
    }

    if (setSearchPageAdvanced) {
      setSearchPageAdvanced(searchQuery.get('as'));
    }

    if (setSearchPageAdvancedSearchTerms) {
      setSearchPageAdvancedSearchTerms(extractAdvancedSearchGroupedTerms(searchQuery.get('as')).searchTerms);
    }

    if (setSearchPageAdvancedLimitBy) {
      setSearchPageAdvancedLimitBy(extractAdvancedSearchGroupedTerms(searchQuery.get('as')).limitBy);
    }
  }

  handleModalCancelButtonClick() {
    this.closeModal();
  }

  handleModalCloseButtonClick() {
    this.closeModal();
  }

  handlePageChange(pageNum) {
    const {
      history,
      location,
    } = this.props;

    const handler = createPageChangeHandler({
      history,
      location,
    });
    return handler(pageNum);
  }

  handlePageSizeChange(pageSize) {
    const {
      history,
      location,
      setPreferredPageSize,
    } = this.props;

    // Call setPreferredPageSize directly (not through dispatch)
    if (setPreferredPageSize) {
      setPreferredPageSize(pageSize);
    }

    // Use helper for URL navigation
    const handler = createPageSizeChangeHandler({
      history,
      location,
    });
    return handler(pageSize);
  }

  handleSortChange(sort) {
    const {
      history,
      location,
    } = this.props;

    if (history) {
      const {
        search,
      } = location;

      const query = qs.parse(search.substring(1));

      query.sort = sort;

      const queryString = qs.stringify(query);

      history.push({
        pathname: location.pathname,
        search: `?${queryString}`,
        state: location.state,
      });
    }
  }

  getSearchDescriptor() {
    // FIXME: Refactor this into a wrapper component that calculates the search descriptor from
    // location and params, and passes it into a child. This will eliminate the multiple calls to
    // this method from the various render methods in this class.

    const {
      location,
      match,
    } = this.props;

    const {
      params,
    } = match;

    const {
      search,
    } = location;

    const query = qs.parse(search.substring(1));

    const searchQuery = {
      ...query,
      p: parseInt(query.p, 10) - 1,
      size: parseInt(query.size, 10),
    };

    const advancedSearchCondition = query.as;

    if (advancedSearchCondition) {
      searchQuery.as = JSON.parse(advancedSearchCondition);
    }

    const searchDescriptor = {
      searchQuery,
    };

    ['recordType', 'vocabulary', 'csid', 'subresource'].forEach((param) => {
      const value = params[param];

      if (typeof value !== 'undefined') {
        searchDescriptor[param] = value;
      }
    });

    return Immutable.fromJS(searchDescriptor);
  }

  normalizeQuery() {
    const {
      config,
    } = this.context;

    const {
      history,
      location,
      preferredPageSize,
    } = this.props;

    const {
      search,
    } = location;

    const query = qs.parse(search.substring(1));
    const { normalizedQuery, changed } = normalizeSearchQueryParams(
      query,
      preferredPageSize,
      config.defaultSearchPageSize,
    );

    if (history && changed) {
      const queryString = qs.stringify(normalizedQuery);

      history.replace({
        pathname: location.pathname,
        search: `?${queryString}`,
        state: location.state,
      });

      return true;
    }

    return false;
  }

  search() {
    const {
      search,
    } = this.props;

    const {
      config,
    } = this.context;

    const searchDescriptor = this.getSearchDescriptor();
    const searchQuery = searchDescriptor.get('searchQuery');

    // Don't send the query if the provided page size and/or number are invalid.
    // The search will be repeated with a valid descriptor once normalizeQuery
    // has set them to the defaults.

    if (!Number.isNaN(searchQuery.get('p')) && !Number.isNaN(searchQuery.get('size')) && search) {
      search(config, SEARCH_RESULT_PAGE_SEARCH_NAME, searchDescriptor);
    }
  }

  renderCheckbox({ rowData, rowIndex }) {
    const {
      selectedItems,
    } = this.props;

    const itemCsid = rowData.get('csid');
    const selected = selectedItems ? selectedItems.has(itemCsid) : false;

    return (
      <CheckboxInput
        embedded
        name={`${rowIndex}`}
        value={selected}
        // DRYD-252: Elaborate workaround for Firefox, part II. Use this onClick instead of the
        // onCommit and onClick below.
        onClick={this.handleCheckboxClick}
        // onCommit={this.handleCheckboxCommit}
        // Prevent clicking on the checkbox from selecting the record.
        // onClick={stopPropagation}
      />
    );
  }

  renderHeader({ searchError, searchResult }) {
    const {
      history,
      location,
      selectedItems,
      setAllItemsSelected,
      perms,
    } = this.props;

    const {
      config,
    } = this.context;

    const searchDescriptor = this.getSearchDescriptor();
    const { listType } = deriveSearchType(config, SEARCH_RESULT_PAGE_SEARCH_NAME, searchDescriptor);

    let selectBar;

    if (!searchError) {
      const relateButton = (
        <RelateResults
          config={config}
          selectedItems={selectedItems}
          searchDescriptor={searchDescriptor}
          perms={perms}
          disabled={false}
          key="relate"
        />
      );

      const exportButton = (
        <ExportResults
          config={config}
          selectedItems={selectedItems}
          searchDescriptor={searchDescriptor}
        />
      );

      selectBar = (
        <SelectBar
          buttons={[relateButton, exportButton]}
          config={config}
          listType={listType}
          searchDescriptor={searchDescriptor}
          searchName={SEARCH_RESULT_PAGE_SEARCH_NAME}
          searchResult={searchResult}
          selectedItems={selectedItems}
          setAllItemsSelected={setAllItemsSelected}
        />
      );
    }

    const {
      search,
    } = location;

    const query = qs.parse(search.substring(1));
    const sortChangeHandler = createSortByHandler({ history, location });
    const sortDirChangeHandler = createSortDirHandler({ history, location });

    const renderSortBy = () => (
      <SortBy
        onSortChange={sortChangeHandler}
        onSortDirChange={sortDirChangeHandler}
        sort={query?.sort}
        recordType={searchDescriptor.get('recordType')}
      />
    );

    return (
      <header>
        <SearchResultSummary
          config={config}
          listType={listType}
          searchName={SEARCH_RESULT_PAGE_SEARCH_NAME}
          searchDescriptor={searchDescriptor}
          onEditSearchLinkClick={this.handleEditSearchLinkClick}
          onPageSizeChange={this.handlePageSizeChange}
          renderSortBy={() => renderSortBy()}
        />
        {selectBar}
      </header>
    );
  }

  renderFooter({ searchResult }) {
    if (searchResult) {
      const {
        config,
      } = this.context;

      const listType = getListTypeFromResult(config, searchResult);
      const listTypeConfig = config.listTypes[listType];
      const { listNodeName } = listTypeConfig;

      const list = searchResult.get(listNodeName);

      const totalItems = parseInt(list.get('totalItems'), 10);
      const pageNum = parseInt(list.get('pageNum'), 10);
      const pageSize = parseInt(list.get('pageSize'), 10);

      const lastPage = Math.max(
        0,
        Number.isNaN(totalItems) ? 0 : Math.ceil(totalItems / pageSize) - 1,
      );

      return (
        <footer>
          <Pager
            currentPage={pageNum}
            lastPage={lastPage}
            pageSize={pageSize}
            onPageChange={this.handlePageChange}
            onPageSizeChange={this.handlePageSizeChange}
          />
        </footer>
      );
    }

    return null;
  }

  render() {
    const {
      location,
      history,
      isSidebarOpen,
    } = this.props;

    const {
      config,
    } = this.context;

    const searchDescriptor = this.getSearchDescriptor();

    const { listType } = deriveSearchType(config, SEARCH_RESULT_PAGE_SEARCH_NAME, searchDescriptor);

    const recordType = searchDescriptor.get('recordType');
    const vocabulary = searchDescriptor.get('vocabulary');
    const csid = searchDescriptor.get('csid');
    const subresource = searchDescriptor.get('subresource');

    const validation = validateLocation(config, {
      recordType, vocabulary, csid, subresource,
    });

    if (validation.error) {
      return (
        <ErrorPage error={validation.error} />
      );
    }

    return (
      <div className={styles.common}>
        <SearchResultTitleBar
          config={config}
          searchDescriptor={searchDescriptor}
          searchName={SEARCH_RESULT_PAGE_SEARCH_NAME}
          updateDocumentTitle
        />
        <div className={isSidebarOpen ? pageBodyStyles.common : pageBodyStyles.full}>
          <WatchedSearchResultTableContainer
            config={config}
            history={history}
            linkState={{ originSearchPage: get(location, ['state', 'originSearchPage']) }}
            listType={listType}
            searchName={SEARCH_RESULT_PAGE_SEARCH_NAME}
            searchDescriptor={searchDescriptor}
            recordType={recordType}
            showCheckboxColumn
            renderCheckbox={this.renderCheckbox}
            renderHeader={this.renderHeader}
            renderFooter={this.renderFooter}
            onSortChange={this.handleSortChange}
            search={this.search}
          />

          <SearchResultSidebar
            config={config}
            history={history}
            isOpen={isSidebarOpen}
            recordType={recordType}
          />
        </div>
      </div>
    );
  }
}

SearchResultPage.propTypes = propTypes;
SearchResultPage.defaultProps = defaultProps;
SearchResultPage.contextTypes = contextTypes;