import {useCallback, useMemo} from 'react';
import styled from '@emotion/styled';
import orderBy from 'lodash/orderBy';

// eslint-disable-next-line no-restricted-imports
import {fetchTagValues} from 'sentry/actionCreators/tags';
import {SearchQueryBuilder} from 'sentry/components/searchQueryBuilder';
import type {FilterKeySection} from 'sentry/components/searchQueryBuilder/types';
import SmartSearchBar from 'sentry/components/smartSearchBar';
import type {SearchGroup} from 'sentry/components/smartSearchBar/types';
import {ItemType} from 'sentry/components/smartSearchBar/types';
import {IconStar} from 'sentry/icons';
import {t} from 'sentry/locale';
import {space} from 'sentry/styles/space';
import type {Organization, Tag, TagCollection} from 'sentry/types';
import {SavedSearchType} from 'sentry/types';
import {getUtcDateString} from 'sentry/utils/dates';
import {
  DEVICE_CLASS_TAG_VALUES,
  FieldKind,
  getFieldDefinition,
  isDeviceClass,
} from 'sentry/utils/fields';
import useApi from 'sentry/utils/useApi';
import usePageFilters from 'sentry/utils/usePageFilters';
import type {WithIssueTagsProps} from 'sentry/utils/withIssueTags';
import withIssueTags from 'sentry/utils/withIssueTags';

const getSupportedTags = (supportedTags: TagCollection): TagCollection => {
  return Object.fromEntries(
    Object.keys(supportedTags).map(key => [
      key,
      {
        ...supportedTags[key],
        kind:
          getFieldDefinition(key)?.kind ??
          (supportedTags[key].predefined ? FieldKind.FIELD : FieldKind.TAG),
      },
    ])
  );
};

const getFilterKeySections = (
  tags: TagCollection,
  organization: Organization
): FilterKeySection[] => {
  if (!organization.features.includes('issue-stream-search-query-builder')) {
    return [];
  }

  const allTags: Tag[] = Object.values(tags).filter(
    tag => !EXCLUDED_TAGS.includes(tag.key)
  );
  const eventTags = orderBy(
    allTags.filter(tag => tag.kind === FieldKind.TAG),
    ['totalValues', 'key'],
    ['desc', 'asc']
  ).map(tag => tag.key);
  const issueFields = orderBy(
    allTags.filter(tag => tag.kind === FieldKind.ISSUE_FIELD),
    ['key']
  ).map(tag => tag.key);
  const eventFields = orderBy(
    allTags.filter(tag => tag.kind === FieldKind.EVENT_FIELD),
    ['key']
  ).map(tag => tag.key);

  return [
    {
      value: FieldKind.ISSUE_FIELD,
      label: t('Issue Filters'),
      children: issueFields,
    },
    {
      value: FieldKind.EVENT_FIELD,
      label: t('Event Filters'),
      children: eventFields,
    },
    {
      value: FieldKind.TAG,
      label: t('Event Tags'),
      children: eventTags,
    },
  ];
};

interface Props extends React.ComponentProps<typeof SmartSearchBar>, WithIssueTagsProps {
  organization: Organization;
}

const EXCLUDED_TAGS = ['environment'];

function IssueListSearchBar({organization, tags, ...props}: Props) {
  const api = useApi();
  const {selection: pageFilters} = usePageFilters();

  const tagValueLoader = useCallback(
    (key: string, search: string) => {
      const orgSlug = organization.slug;
      const projectIds = pageFilters.projects.map(id => id.toString());
      const endpointParams = {
        start: pageFilters.datetime.start
          ? getUtcDateString(pageFilters.datetime.start)
          : undefined,
        end: pageFilters.datetime.end
          ? getUtcDateString(pageFilters.datetime.end)
          : undefined,
        statsPeriod: pageFilters.datetime.period,
      };

      return fetchTagValues({
        api,
        orgSlug,
        tagKey: key,
        search,
        projectIds,
        endpointParams,
      });
    },
    [
      api,
      organization.slug,
      pageFilters.datetime.end,
      pageFilters.datetime.period,
      pageFilters.datetime.start,
      pageFilters.projects,
    ]
  );

  const getTagValues = useCallback(
    async (tag: Tag, query: string): Promise<string[]> => {
      // device.class is stored as "numbers" in snuba, but we want to suggest high, medium,
      // and low search filter values because discover maps device.class to these values.
      if (isDeviceClass(tag.key)) {
        return DEVICE_CLASS_TAG_VALUES;
      }
      const values = await tagValueLoader(tag.key, query);
      return values.map(({value}) => {
        // Truncate results to 5000 characters to avoid exceeding the max url query length
        // The message attribute for example can be 8192 characters.
        if (typeof value === 'string' && value.length > 5000) {
          return value.substring(0, 5000);
        }
        return value;
      });
    },
    [tagValueLoader]
  );

  const recommendedGroup: SearchGroup = {
    title: t('Popular Filters'),
    type: 'header',
    icon: <IconStar size="xs" />,
    childrenWrapper: RecommendedWrapper,
    children: [
      {
        type: ItemType.RECOMMENDED,
        kind: FieldKind.FIELD,
        title: t('Issue Category'),
        value: 'issue.category:',
      },
      {
        type: ItemType.RECOMMENDED,
        kind: FieldKind.FIELD,
        title: t('Error Level'),
        value: 'level:',
      },
      {
        type: ItemType.RECOMMENDED,
        kind: FieldKind.FIELD,
        title: t('Assignee'),
        value: 'assigned_or_suggested:',
      },
      {
        type: ItemType.RECOMMENDED,
        kind: FieldKind.FIELD,
        title: t('Unhandled Events'),
        value: 'error.unhandled:true ',
      },
      {
        type: ItemType.RECOMMENDED,
        kind: FieldKind.FIELD,
        title: t('Latest Release'),
        value: 'release:latest ',
      },
      {
        type: ItemType.RECOMMENDED,
        kind: FieldKind.TAG,
        title: t('Custom Tags'),
        // Shows only tags when clicked
        applyFilter: item => item.kind === FieldKind.TAG,
      },
    ],
  };

  const filterKeySections = useMemo(() => {
    return getFilterKeySections(tags, organization);
  }, [organization, tags]);

  if (organization.features.includes('issue-stream-search-query-builder')) {
    return (
      <SearchQueryBuilder
        className={props.className}
        initialQuery={props.query ?? ''}
        getTagValues={getTagValues}
        filterKeySections={filterKeySections}
        filterKeys={tags}
        onSearch={props.onSearch}
        onBlur={props.onBlur}
        onChange={value => {
          props.onClose?.(value, {validSearch: true});
        }}
        searchSource={props.searchSource ?? 'issues'}
        savedSearchType={SavedSearchType.ISSUE}
        disallowLogicalOperators
      />
    );
  }

  return (
    <SmartSearchBar
      hasRecentSearches
      projectIds={pageFilters.projects}
      savedSearchType={SavedSearchType.ISSUE}
      onGetTagValues={getTagValues}
      excludedTags={EXCLUDED_TAGS}
      maxMenuHeight={500}
      supportedTags={getSupportedTags(tags)}
      defaultSearchGroup={recommendedGroup}
      organization={organization}
      {...props}
    />
  );
}

export default withIssueTags(IssueListSearchBar);

// Using grid-template-rows to order the items top to bottom, then left to right
const RecommendedWrapper = styled('div')`
  display: grid;
  grid-template-rows: 1fr 1fr 1fr;
  grid-auto-flow: column;
  gap: ${space(1)};
  padding: ${space(1)};
  text-align: left;
  line-height: 1.2;

  & > li {
    ${p => p.theme.overflowEllipsis}
    border-radius: ${p => p.theme.borderRadius};
    border: 1px solid ${p => p.theme.border};
    padding: ${space(1)} ${space(1.5)};
    margin: 0;
  }

  @media (min-width: ${p => p.theme.breakpoints.small}) {
    grid-template-rows: 1fr 1fr;
    gap: ${space(1.5)};
    padding: ${space(1.5)};
    text-align: center;

    & > li {
      padding: ${space(1.5)} ${space(2)};
    }
  }
`;