import {useMemo} from 'react';
import styled from '@emotion/styled';
import {LocationDescriptor} from 'history';
import omit from 'lodash/omit';

import Badge from 'sentry/components/badge';
import Breadcrumbs from 'sentry/components/breadcrumbs';
import Count from 'sentry/components/count';
import EventOrGroupTitle from 'sentry/components/eventOrGroupTitle';
import ErrorLevel from 'sentry/components/events/errorLevel';
import EventMessage from 'sentry/components/events/eventMessage';
import InboxReason from 'sentry/components/group/inboxBadges/inboxReason';
import {GroupStatusBadge} from 'sentry/components/group/inboxBadges/statusBadge';
import UnhandledInboxTag from 'sentry/components/group/inboxBadges/unhandledTag';
import * as Layout from 'sentry/components/layouts/thirds';
import Link from 'sentry/components/links/link';
import {EnvironmentPageFilter} from 'sentry/components/organizations/environmentPageFilter';
import ReplayCountBadge from 'sentry/components/replays/replayCountBadge';
import useReplaysCount from 'sentry/components/replays/useReplaysCount';
import {TabList} from 'sentry/components/tabs';
import {IconChat} from 'sentry/icons';
import {t} from 'sentry/locale';
import {space} from 'sentry/styles/space';
import {Event, Group, IssueCategory, Organization, Project} from 'sentry/types';
import {getMessage} from 'sentry/utils/events';
import {getConfigForIssueType} from 'sentry/utils/issueTypeConfig';
import {projectCanLinkToReplay} from 'sentry/utils/replays/projectSupportsReplay';
import useRouteAnalyticsParams from 'sentry/utils/routeAnalytics/useRouteAnalyticsParams';
import {useLocation} from 'sentry/utils/useLocation';
import useOrganization from 'sentry/utils/useOrganization';

import GroupActions from './actions';
import {ShortIdBreadrcumb} from './shortIdBreadcrumb';
import {Tab} from './types';
import {TagAndMessageWrapper} from './unhandledTag';
import {ReprocessingStatus} from './utils';

type Props = {
  baseUrl: string;
  group: Group;
  groupReprocessingStatus: ReprocessingStatus;
  organization: Organization;
  project: Project;
  event?: Event;
};

interface GroupHeaderTabsProps extends Pick<Props, 'baseUrl' | 'group' | 'project'> {
  disabledTabs: Tab[];
  eventRoute: LocationDescriptor;
}

function GroupHeaderTabs({
  baseUrl,
  disabledTabs,
  eventRoute,
  group,
  project,
}: GroupHeaderTabsProps) {
  const organization = useOrganization();

  const replaysCount = useReplaysCount({
    issueCategory: group.issueCategory,
    groupIds: group.id,
    organization,
  })[group.id];
  const projectFeatures = new Set(project ? project.features : []);
  const organizationFeatures = new Set(organization ? organization.features : []);

  const hasSimilarView = projectFeatures.has('similarity-view');
  const hasEventAttachments = organizationFeatures.has('event-attachments');
  const hasReplaySupport =
    organizationFeatures.has('session-replay') && projectCanLinkToReplay(project);

  const issueTypeConfig = getConfigForIssueType(group);

  useRouteAnalyticsParams({
    group_has_replay: (replaysCount ?? 0) > 0,
  });

  return (
    <StyledTabList hideBorder>
      <TabList.Item
        key={Tab.DETAILS}
        disabled={disabledTabs.includes(Tab.DETAILS)}
        to={`${baseUrl}${location.search}`}
      >
        {t('Details')}
      </TabList.Item>
      <TabList.Item
        key={Tab.ACTIVITY}
        textValue={t('Activity')}
        disabled={disabledTabs.includes(Tab.ACTIVITY)}
        to={`${baseUrl}activity/${location.search}`}
      >
        {t('Activity')}
        <IconBadge>
          {group.numComments}
          <IconChat size="xs" />
        </IconBadge>
      </TabList.Item>
      <TabList.Item
        key={Tab.USER_FEEDBACK}
        textValue={t('User Feedback')}
        hidden={!issueTypeConfig.userFeedback.enabled}
        disabled={disabledTabs.includes(Tab.USER_FEEDBACK)}
        to={`${baseUrl}feedback/${location.search}`}
      >
        {t('User Feedback')} <Badge text={group.userReportCount} />
      </TabList.Item>
      <TabList.Item
        key={Tab.ATTACHMENTS}
        hidden={!hasEventAttachments || !issueTypeConfig.attachments.enabled}
        disabled={disabledTabs.includes(Tab.ATTACHMENTS)}
        to={`${baseUrl}attachments/${location.search}`}
      >
        {t('Attachments')}
      </TabList.Item>
      <TabList.Item
        key={Tab.TAGS}
        hidden={!issueTypeConfig.tags.enabled}
        disabled={disabledTabs.includes(Tab.TAGS)}
        to={`${baseUrl}tags/${location.search}`}
      >
        {t('Tags')}
      </TabList.Item>
      <TabList.Item
        key={Tab.EVENTS}
        hidden={!issueTypeConfig.events.enabled}
        disabled={disabledTabs.includes(Tab.EVENTS)}
        to={eventRoute}
      >
        {group.issueCategory === IssueCategory.ERROR
          ? t('All Events')
          : t('Sampled Events')}
      </TabList.Item>
      <TabList.Item
        key={Tab.MERGED}
        hidden={!issueTypeConfig.mergedIssues.enabled}
        disabled={disabledTabs.includes(Tab.MERGED)}
        to={`${baseUrl}merged/${location.search}`}
      >
        {t('Merged Issues')}
      </TabList.Item>
      <TabList.Item
        key={Tab.SIMILAR_ISSUES}
        hidden={!hasSimilarView || !issueTypeConfig.similarIssues.enabled}
        disabled={disabledTabs.includes(Tab.SIMILAR_ISSUES)}
        to={`${baseUrl}similar/${location.search}`}
      >
        {t('Similar Issues')}
      </TabList.Item>
      <TabList.Item
        key={Tab.REPLAYS}
        textValue={t('Replays')}
        hidden={!hasReplaySupport || !issueTypeConfig.replays.enabled}
        to={`${baseUrl}replays/${location.search}`}
      >
        {t('Replays')}
        <ReplayCountBadge count={replaysCount} />
      </TabList.Item>
    </StyledTabList>
  );
}

function GroupHeader({
  baseUrl,
  group,
  groupReprocessingStatus,
  organization,
  event,
  project,
}: Props) {
  const location = useLocation();
  const hasEscalatingIssuesUi = organization.features.includes('escalating-issues');

  const disabledTabs = useMemo(() => {
    const hasReprocessingV2Feature = organization.features.includes('reprocessing-v2');

    if (!hasReprocessingV2Feature) {
      return [];
    }

    if (groupReprocessingStatus === ReprocessingStatus.REPROCESSING) {
      return [
        Tab.ACTIVITY,
        Tab.USER_FEEDBACK,
        Tab.ATTACHMENTS,
        Tab.EVENTS,
        Tab.MERGED,
        Tab.SIMILAR_ISSUES,
        Tab.TAGS,
      ];
    }

    if (groupReprocessingStatus === ReprocessingStatus.REPROCESSED_AND_HASNT_EVENT) {
      return [
        Tab.DETAILS,
        Tab.ATTACHMENTS,
        Tab.EVENTS,
        Tab.MERGED,
        Tab.SIMILAR_ISSUES,
        Tab.TAGS,
        Tab.USER_FEEDBACK,
      ];
    }

    return [];
  }, [organization, groupReprocessingStatus]);

  const eventRoute = useMemo(() => {
    const searchTermWithoutQuery = omit(location.query, 'query');
    return {
      pathname: `${baseUrl}events/`,
      query: searchTermWithoutQuery,
    };
  }, [location, baseUrl]);

  const {userCount} = group;

  let className = 'group-detail';

  if (group.hasSeen) {
    className += ' hasSeen';
  }

  if (group.status === 'resolved') {
    className += ' isResolved';
  }

  const message = getMessage(group);

  const disableActions = !!disabledTabs.length;

  const shortIdBreadcrumb = (
    <ShortIdBreadrcumb organization={organization} project={project} group={group} />
  );

  const issueTypeConfig = getConfigForIssueType(group);

  return (
    <Layout.Header>
      <div className={className}>
        <BreadcrumbActionWrapper>
          <Breadcrumbs
            crumbs={[
              {
                label: 'Issues',
                to: {
                  pathname: `/organizations/${organization.slug}/issues/`,
                  // Sanitize sort queries from query
                  query: omit(location.query, 'sort'),
                },
              },
              {label: shortIdBreadcrumb},
            ]}
          />
          <GroupActions
            group={group}
            project={project}
            disabled={disableActions}
            event={event}
            query={location.query}
          />
        </BreadcrumbActionWrapper>
        <HeaderRow>
          <TitleWrapper>
            <TitleHeading>
              <h3>
                <StyledEventOrGroupTitle data={group} />
              </h3>
              {!hasEscalatingIssuesUi && group.inbox && (
                <InboxReason inbox={group.inbox} fontSize="md" />
              )}
              {hasEscalatingIssuesUi && (
                <GroupStatusBadge
                  status={group.status}
                  substatus={group.substatus}
                  fontSize="md"
                />
              )}
            </TitleHeading>
            <StyledTagAndMessageWrapper>
              {group.level && <ErrorLevel level={group.level} size="11px" />}
              {group.isUnhandled && <UnhandledInboxTag />}
              <EventMessage message={message} />
            </StyledTagAndMessageWrapper>
          </TitleWrapper>
          {issueTypeConfig.stats.enabled && (
            <StatsWrapper>
              <div className="count">
                <h6 className="nav-header">{t('Events')}</h6>
                <Link disabled={disableActions} to={eventRoute}>
                  <Count className="count" value={group.count} />
                </Link>
              </div>
              <div className="count">
                <h6 className="nav-header">{t('Users')}</h6>
                {userCount !== 0 ? (
                  <Link
                    disabled={disableActions}
                    to={`${baseUrl}tags/user/${location.search}`}
                  >
                    <Count className="count" value={userCount} />
                  </Link>
                ) : (
                  <span>0</span>
                )}
              </div>
            </StatsWrapper>
          )}
        </HeaderRow>
        {/* Environment picker for mobile */}
        <HeaderRow className="hidden-sm hidden-md hidden-lg">
          <EnvironmentPageFilter position="bottom-end" />
        </HeaderRow>
        <GroupHeaderTabs {...{baseUrl, disabledTabs, eventRoute, group, project}} />
      </div>
    </Layout.Header>
  );
}

export default GroupHeader;

const BreadcrumbActionWrapper = styled('div')`
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  gap: ${space(1)};
  align-items: center;
`;

const HeaderRow = styled('div')`
  display: flex;
  gap: ${space(2)};
  justify-content: space-between;
  margin-top: ${space(2)};

  @media (max-width: ${p => p.theme.breakpoints.small}) {
    flex-direction: column;
  }
`;

const TitleWrapper = styled('div')`
  @media (min-width: ${p => p.theme.breakpoints.small}) {
    max-width: 65%;
  }
`;

const TitleHeading = styled('div')`
  display: flex;
  line-height: 2;
  gap: ${space(1)};
`;

const StyledEventOrGroupTitle = styled(EventOrGroupTitle)`
  font-size: inherit;
`;

const StatsWrapper = styled('div')`
  display: grid;
  grid-template-columns: repeat(2, min-content);
  gap: calc(${space(3)} + ${space(3)});

  @media (min-width: ${p => p.theme.breakpoints.small}) {
    justify-content: flex-end;
  }
`;

const StyledTagAndMessageWrapper = styled(TagAndMessageWrapper)`
  display: flex;
  gap: ${space(1)};
  justify-content: flex-start;
  line-height: 1.2;
`;

const IconBadge = styled(Badge)`
  display: flex;
  align-items: center;
  gap: ${space(0.5)};
`;

const StyledTabList = styled(TabList)`
  margin-top: ${space(2)};
`;