import {
  cloneElement,
  Fragment,
  isValidElement,
  useCallback,
  useEffect,
  useState,
} from 'react';
import {browserHistory, RouteComponentProps} from 'react-router';
import styled from '@emotion/styled';
import * as Sentry from '@sentry/react';

import {fetchOrganizationEnvironments} from 'sentry/actionCreators/environments';
import LoadingError from 'sentry/components/loadingError';
import LoadingIndicator from 'sentry/components/loadingIndicator';
import PageFiltersContainer from 'sentry/components/organizations/pageFilters/container';
import MissingProjectMembership from 'sentry/components/projects/missingProjectMembership';
import SentryDocumentTitle from 'sentry/components/sentryDocumentTitle';
import {TabPanels, Tabs} from 'sentry/components/tabs';
import {t} from 'sentry/locale';
import GroupStore from 'sentry/stores/groupStore';
import {useLegacyStore} from 'sentry/stores/useLegacyStore';
import {space} from 'sentry/styles/space';
import {Group, IssueCategory, Organization, Project} from 'sentry/types';
import {Event} from 'sentry/types/event';
import {defined} from 'sentry/utils';
import {trackAnalytics} from 'sentry/utils/analytics';
import {getUtcDateString} from 'sentry/utils/dates';
import {
  getAnalyticsDataForEvent,
  getAnalyticsDataForGroup,
  getMessage,
  getTitle,
} from 'sentry/utils/events';
import {getAnalyicsDataForProject} from 'sentry/utils/projects';
import {useApiQuery} from 'sentry/utils/queryClient';
import recreateRoute from 'sentry/utils/recreateRoute';
import RequestError from 'sentry/utils/requestError/requestError';
import useRouteAnalyticsEventNames from 'sentry/utils/routeAnalytics/useRouteAnalyticsEventNames';
import useRouteAnalyticsParams from 'sentry/utils/routeAnalytics/useRouteAnalyticsParams';
import useApi from 'sentry/utils/useApi';
import {useLocation} from 'sentry/utils/useLocation';
import useOrganization from 'sentry/utils/useOrganization';
import usePrevious from 'sentry/utils/usePrevious';
import useProjects from 'sentry/utils/useProjects';
import useRouter from 'sentry/utils/useRouter';
import {normalizeUrl} from 'sentry/utils/withDomainRequired';

import {ERROR_TYPES} from './constants';
import GroupHeader from './header';
import SampleEventAlert from './sampleEventAlert';
import {Tab, TabPaths} from './types';
import {
  getGroupReprocessingStatus,
  markEventSeen,
  ReprocessingStatus,
  useFetchIssueTagsForDetailsPage,
} from './utils';

type Error = (typeof ERROR_TYPES)[keyof typeof ERROR_TYPES] | null;

type RouterParams = {groupId: string; eventId?: string};
type RouteProps = RouteComponentProps<RouterParams, {}>;

type GroupDetailsProps = {
  children: React.ReactNode;
  environments: string[];
  isGlobalSelectionReady: boolean;
  organization: Organization;
  projects: Project[];
};

type FetchGroupDetailsState = {
  error: boolean;
  errorType: Error;
  event: Event | null;
  eventError: boolean;
  fetchData: () => Promise<void>;
  group: Group | null;
  loadingEvent: boolean;
  loadingGroup: boolean;
  project: Project | null;
  refetchData: () => void;
  refetchGroup: () => void;
};

interface GroupDetailsContentProps extends GroupDetailsProps, FetchGroupDetailsState {
  group: Group;
  project: Project;
}

function getGroupQuery({
  environments,
}: Pick<GroupDetailsProps, 'environments'>): Record<string, string | string[]> {
  // Note, we do not want to include the environment key at all if there are no environments
  const query: Record<string, string | string[]> = {
    ...(environments ? {environment: environments} : {}),
    expand: ['inbox', 'owners'],
    collapse: ['release', 'tags'],
  };

  return query;
}

function getFetchDataRequestErrorType(status?: number | null): Error {
  if (!status) {
    return null;
  }

  if (status === 404) {
    return ERROR_TYPES.GROUP_NOT_FOUND;
  }

  if (status === 403) {
    return ERROR_TYPES.MISSING_MEMBERSHIP;
  }

  return null;
}

function getCurrentTab({router}: {router: RouteProps['router']}) {
  const currentRoute = router.routes[router.routes.length - 1];

  // If we're in the tag details page ("/tags/:tagKey/")
  if (router.params.tagKey) {
    return Tab.TAGS;
  }
  return (
    Object.values(Tab).find(tab => currentRoute.path === TabPaths[tab]) ?? Tab.DETAILS
  );
}

function getCurrentRouteInfo({
  group,
  event,
  organization,
  router,
}: {
  event: Event | null;
  group: Group;
  organization: Organization;
  router: RouteProps['router'];
}): {
  baseUrl: string;
  currentTab: Tab;
} {
  const currentTab = getCurrentTab({router});

  const baseUrl = normalizeUrl(
    `/organizations/${organization.slug}/issues/${group.id}/${
      router.params.eventId && event ? `events/${event.id}/` : ''
    }`
  );

  return {baseUrl, currentTab};
}

function getReprocessingNewRoute({
  group,
  event,
  organization,
  router,
}: {
  event: Event | null;
  group: Group;
  organization: Organization;
  router: RouteProps['router'];
}) {
  const {routes, params, location} = router;
  const {groupId} = params;
  const {currentTab, baseUrl} = getCurrentRouteInfo({group, event, organization, router});
  const hasReprocessingV2Feature = organization.features?.includes('reprocessing-v2');

  const {id: nextGroupId} = group;

  const reprocessingStatus = getGroupReprocessingStatus(group);

  if (groupId !== nextGroupId) {
    if (hasReprocessingV2Feature) {
      // Redirects to the Activities tab
      if (
        reprocessingStatus === ReprocessingStatus.REPROCESSED_AND_HASNT_EVENT &&
        currentTab !== Tab.ACTIVITY
      ) {
        return {
          pathname: `${baseUrl}${Tab.ACTIVITY}/`,
          query: {...params, groupId: nextGroupId},
        };
      }
    }

    return recreateRoute('', {
      routes,
      location,
      params: {...params, groupId: nextGroupId},
    });
  }

  if (hasReprocessingV2Feature) {
    if (
      reprocessingStatus === ReprocessingStatus.REPROCESSING &&
      currentTab !== Tab.DETAILS
    ) {
      return {
        pathname: baseUrl,
        query: params,
      };
    }

    if (
      reprocessingStatus === ReprocessingStatus.REPROCESSED_AND_HASNT_EVENT &&
      currentTab !== Tab.ACTIVITY &&
      currentTab !== Tab.USER_FEEDBACK
    ) {
      return {
        pathname: `${baseUrl}${Tab.ACTIVITY}/`,
        query: params,
      };
    }
  }
  return undefined;
}

function useRefetchGroupForReprocessing({
  refetchGroup,
}: Pick<FetchGroupDetailsState, 'refetchGroup'>) {
  const organization = useOrganization();
  const hasReprocessingV2Feature = organization.features?.includes('reprocessing-v2');

  useEffect(() => {
    let refetchInterval: number;

    if (hasReprocessingV2Feature) {
      refetchInterval = window.setInterval(refetchGroup, 30000);
    }

    return () => {
      window.clearInterval(refetchInterval);
    };
  }, [hasReprocessingV2Feature, refetchGroup]);
}

function useFetchOnMount({fetchData}: Pick<FetchGroupDetailsState, 'fetchData'>) {
  const api = useApi();
  const organization = useOrganization();

  useEffect(() => {
    fetchData();

    // Fetch environments early - used in GroupEventDetailsContainer
    fetchOrganizationEnvironments(api, organization.slug);
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, []);
}

function useEventApiQuery(
  eventID: string,
  queryKey: [string, {query: {environment?: string[]}}]
) {
  const isLatest = eventID === 'latest';
  const latestEventQuery = useApiQuery<Event>(queryKey, {
    staleTime: 30000,
    cacheTime: 30000,
    enabled: isLatest,
    retry: (_, error) => error.status !== 404,
  });
  const otherEventQuery = useApiQuery<Event>(queryKey, {
    staleTime: Infinity,
    enabled: !isLatest,
    retry: (_, error) => error.status !== 404,
  });

  return isLatest ? latestEventQuery : otherEventQuery;
}

function useFetchGroupDetails({
  isGlobalSelectionReady,
  environments,
}: Pick<
  GroupDetailsProps,
  'isGlobalSelectionReady' | 'environments'
>): FetchGroupDetailsState {
  const api = useApi();
  const organization = useOrganization();
  const router = useRouter();
  const params = router.params;
  const location = useLocation();
  const {projects} = useProjects();
  const allGroups = useLegacyStore(GroupStore);
  const group = allGroups.find(({id}) => id === params.groupId) as Group;

  const [project, setProject] = useState<Project | null>(null);
  const [loadingGroup, setLoadingGroup] = useState<boolean>(false);
  const [error, setError] = useState<boolean>(false);
  const [errorType, setErrorType] = useState<Error | null>(null);
  const [event, setEvent] = useState<Event | null>(null);

  const groupId = params.groupId;
  const eventId = params.eventId ?? 'latest';

  const eventUrl = `/issues/${groupId}/events/${eventId}/`;

  const eventQuery: {environment?: string[]} = {};
  if (environments.length !== 0) {
    eventQuery.environment = environments;
  }

  const {
    data: eventData,
    isLoading: loadingEvent,
    isError,
    refetch: refetchEvent,
  } = useEventApiQuery(eventId, [eventUrl, {query: eventQuery}]);

  useEffect(() => {
    if (eventData) {
      setEvent(eventData);
    }
  }, [eventData]);

  const fetchGroupReleases = useCallback(async () => {
    const releases = await api.requestPromise(
      `/issues/${params.groupId}/first-last-release/`
    );
    GroupStore.onPopulateReleases(params.groupId, releases);
  }, [api, params.groupId]);

  const handleError = useCallback((e: RequestError) => {
    Sentry.captureException(e);

    setLoadingGroup(false);
    setErrorType(getFetchDataRequestErrorType(e?.status));
    setError(true);
  }, []);

  const fetchData = useCallback(async () => {
    // Need to wait for global selection store to be ready before making request
    if (!isGlobalSelectionReady) {
      return;
    }

    try {
      const groupResponse = await api.requestPromise(`/issues/${params.groupId}/`, {
        query: getGroupQuery({environments}),
      });
      fetchGroupReleases();

      const reprocessingNewRoute = getReprocessingNewRoute({
        group: groupResponse,
        event,
        router,
        organization,
      });

      if (reprocessingNewRoute) {
        browserHistory.push(reprocessingNewRoute);
        return;
      }

      const matchingProject = projects?.find(p => p.id === groupResponse.project.id);

      if (!matchingProject) {
        Sentry.withScope(scope => {
          const projectIds = projects.map(item => item.id);
          scope.setContext('missingProject', {
            projectId: groupResponse.project.id,
            availableProjects: projectIds,
          });
          Sentry.captureException(new Error('Project not found'));
        });
      } else {
        markEventSeen(api, organization.slug, matchingProject.slug, params.groupId);
        const locationQuery = {...location.query};
        if (locationQuery.project === undefined && locationQuery._allp === undefined) {
          // We use _allp as a temporary measure to know they came from the
          // issue list page with no project selected (all projects included in
          // filter).
          //
          // If it is not defined, we add the locked project id to the URL
          // (this is because if someone navigates directly to an issue on
          // single-project priveleges, then goes back - they were getting
          // assigned to the first project).
          //
          // If it is defined, we do not so that our back button will bring us
          // to the issue list page with no project selected instead of the
          // locked project.
          locationQuery.project = matchingProject.id;
        }
        // We delete _allp from the URL to keep the hack a bit cleaner, but
        // this is not an ideal solution and will ultimately be replaced with
        // something smarter.
        delete locationQuery._allp;
        browserHistory.replace({...window.location, query: locationQuery});
      }

      setProject(matchingProject || groupResponse.project);
      setLoadingGroup(false);

      GroupStore.loadInitialData([groupResponse]);
    } catch (e) {
      handleError(e);
    }
  }, [
    api,
    environments,
    fetchGroupReleases,
    handleError,
    isGlobalSelectionReady,
    location,
    organization,
    params,
    projects,
    event,
    router,
  ]);

  // Refetch when group is stale
  useEffect(() => {
    if (group) {
      // TODO(ts) This needs a better approach. issueActions is splicing attributes onto
      // group objects to cheat here.
      if ((group as Group & {stale?: boolean}).stale) {
        fetchData();
        return;
      }
    }
  }, [fetchData, group]);

  useTrackView({group, event, project});

  const refetchData = useCallback(() => {
    // Set initial state
    setLoadingGroup(true);
    setError(false);
    setErrorType(null);

    // refetchEvent comes from useApiQuery since event and group data are separately fetched
    refetchEvent();
    fetchData();
  }, [fetchData, refetchEvent]);

  const refetchGroup = useCallback(async () => {
    if (
      group?.status !== ReprocessingStatus.REPROCESSING ||
      loadingGroup ||
      loadingEvent
    ) {
      return;
    }

    setLoadingGroup(true);

    try {
      const updatedGroup = await api.requestPromise(`/issues/${params.groupId}/`, {
        query: getGroupQuery({environments}),
      });

      const reprocessingNewRoute = getReprocessingNewRoute({
        group: updatedGroup,
        event,
        organization,
        router,
      });

      if (reprocessingNewRoute) {
        browserHistory.push(reprocessingNewRoute);
        return;
      }

      setLoadingGroup(false);
      GroupStore.loadInitialData([updatedGroup]);
    } catch (e) {
      handleError(e);
    }
  }, [
    api,
    environments,
    group?.status,
    handleError,
    loadingEvent,
    loadingGroup,
    params.groupId,
    event,
    organization,
    router,
  ]);

  useFetchOnMount({fetchData});
  useRefetchGroupForReprocessing({refetchGroup});

  useEffect(() => {
    return () => {
      GroupStore.reset();
    };
  }, []);

  return {
    project,
    loadingGroup,
    loadingEvent,
    fetchData,
    group,
    event,
    errorType,
    error,
    eventError: isError,
    refetchData,
    refetchGroup,
  };
}

function useTrackView({
  group,
  event,
  project,
}: {
  event: Event | null;
  group: Group | null;
  project: Project | null;
}) {
  const location = useLocation();
  const {alert_date, alert_rule_id, alert_type, ref_fallback, stream_index, query} =
    location.query;

  useRouteAnalyticsEventNames('issue_details.viewed', 'Issue Details: Viewed');
  useRouteAnalyticsParams({
    ...getAnalyticsDataForGroup(group),
    ...getAnalyticsDataForEvent(event),
    ...getAnalyicsDataForProject(project),
    stream_index: typeof stream_index === 'string' ? Number(stream_index) : undefined,
    query: typeof query === 'string' ? query : undefined,
    // Alert properties track if the user came from email/slack alerts
    alert_date:
      typeof alert_date === 'string' ? getUtcDateString(Number(alert_date)) : undefined,
    alert_rule_id: typeof alert_rule_id === 'string' ? alert_rule_id : undefined,
    alert_type: typeof alert_type === 'string' ? alert_type : undefined,
    ref_fallback,
    // Will be updated by StacktraceLink if there is a stacktrace link
    stacktrace_link_viewed: false,
    // Will be updated by IssueQuickTrace if there is a trace
    trace_status: 'none',
    // Will be updated in GroupDetailsHeader if there are replays
    group_has_replay: false,
  });
}

const trackTabChanged = ({
  organization,
  project,
  group,
  event,
  tab,
}: {
  event: Event | null;
  group: Group;
  organization: Organization;
  project: Project;
  tab: Tab;
}) => {
  if (!project || !group) {
    return;
  }

  trackAnalytics('issue_details.tab_changed', {
    organization,
    project_id: parseInt(project.id, 10),
    tab,
    ...getAnalyticsDataForGroup(group),
  });

  if (group.issueCategory !== IssueCategory.ERROR) {
    return;
  }

  const analyticsData = event
    ? event.tags
        .filter(({key}) => ['device', 'os', 'browser'].includes(key))
        .reduce((acc, {key, value}) => {
          acc[key] = value;
          return acc;
        }, {})
    : {};

  trackAnalytics('issue_group_details.tab.clicked', {
    organization,
    tab,
    platform: project.platform,
    ...analyticsData,
  });
};

function GroupDetailsContentError({
  errorType,
  onRetry,
}: {
  errorType: Error;
  onRetry: () => void;
}) {
  const organization = useOrganization();
  const location = useLocation();
  const projectId = location.query.project;

  const {projects} = useProjects();
  const project = projects.find(proj => proj.id === projectId);

  switch (errorType) {
    case ERROR_TYPES.GROUP_NOT_FOUND:
      return (
        <StyledLoadingError
          message={t('The issue you were looking for was not found.')}
        />
      );

    case ERROR_TYPES.MISSING_MEMBERSHIP:
      return <MissingProjectMembership organization={organization} project={project} />;
    default:
      return <StyledLoadingError onRetry={onRetry} />;
  }
}

function GroupDetailsContent({
  environments,
  children,
  group,
  project,
  loadingEvent,
  eventError,
  event,
  refetchData,
}: GroupDetailsContentProps) {
  const organization = useOrganization();
  const router = useRouter();

  const {currentTab, baseUrl} = getCurrentRouteInfo({group, event, router, organization});
  const groupReprocessingStatus = getGroupReprocessingStatus(group);

  useEffect(() => {
    if (
      currentTab === Tab.DETAILS &&
      group &&
      event &&
      group.id !== event?.groupID &&
      !eventError
    ) {
      // if user pastes only the event id into the url, but it's from another group, redirect to correct group/event
      const redirectUrl = `/organizations/${organization.slug}/issues/${event.groupID}/events/${event.id}/`;

      router.push(normalizeUrl(redirectUrl));
    }
  }, [currentTab, event, eventError, group, organization.slug, router]);

  const childProps = {
    environments,
    group,
    project,
    event,
    loadingEvent,
    eventError,
    groupReprocessingStatus,
    onRetry: refetchData,
    baseUrl,
  };

  return (
    <Tabs
      value={currentTab}
      onChange={tab => trackTabChanged({tab, group, project, event, organization})}
    >
      <GroupHeader
        organization={organization}
        groupReprocessingStatus={groupReprocessingStatus}
        event={event ?? undefined}
        group={group}
        baseUrl={baseUrl}
        project={project as Project}
      />
      <GroupTabPanels>
        <TabPanels.Item key={currentTab}>
          {isValidElement(children) ? cloneElement(children, childProps) : children}
        </TabPanels.Item>
      </GroupTabPanels>
    </Tabs>
  );
}

function GroupDetailsPageContent(props: GroupDetailsProps & FetchGroupDetailsState) {
  const {
    projects,
    initiallyLoaded: projectsLoaded,
    fetchError: errorFetchingProjects,
  } = useProjects({slugs: props.project?.slug ? [props.project.slug] : []});

  const project =
    (props.project?.slug
      ? projects.find(({slug}) => slug === props.project?.slug)
      : undefined) ?? projects[0];

  if (props.error) {
    return (
      <GroupDetailsContentError errorType={props.errorType} onRetry={props.refetchData} />
    );
  }

  if (errorFetchingProjects) {
    return <StyledLoadingError message={t('Error loading the specified project')} />;
  }

  if (!projectsLoaded || !project || !props.group) {
    return <LoadingIndicator />;
  }

  return <GroupDetailsContent {...props} project={project} group={props.group} />;
}

function GroupDetails(props: GroupDetailsProps) {
  const organization = useOrganization();
  const location = useLocation();
  const router = useRouter();

  const {fetchData, project, group, ...fetchGroupDetailsProps} =
    useFetchGroupDetails(props);

  const previousPathname = usePrevious(location.pathname);
  const previousEventId = usePrevious(router.params.eventId);
  const previousIsGlobalSelectionReady = usePrevious(props.isGlobalSelectionReady);

  const {data} = useFetchIssueTagsForDetailsPage(
    {
      groupId: router.params.groupId,
      environment: props.environments,
    },
    // Don't want this query to take precedence over the main requests
    {enabled: props.isGlobalSelectionReady && defined(group)}
  );
  const isSampleError = data?.some(tag => tag.key === 'sample_event') ?? false;

  useEffect(() => {
    const globalSelectionReadyChanged =
      previousIsGlobalSelectionReady !== props.isGlobalSelectionReady;

    if (globalSelectionReadyChanged || location.pathname !== previousPathname) {
      fetchData();
    }
  }, [
    fetchData,
    group,
    location.pathname,
    previousEventId,
    previousIsGlobalSelectionReady,
    previousPathname,
    props.isGlobalSelectionReady,
    router.params.eventId,
  ]);

  const getGroupDetailsTitle = () => {
    const defaultTitle = 'Sentry';

    if (!group) {
      return defaultTitle;
    }

    const {title} = getTitle(group, organization?.features);
    const message = getMessage(group);

    const eventDetails = `${organization.slug} - ${group.project.slug}`;

    if (title && message) {
      return `${title}: ${message} - ${eventDetails}`;
    }

    return `${title || message || defaultTitle} - ${eventDetails}`;
  };

  return (
    <Fragment>
      {isSampleError && project && (
        <SampleEventAlert project={project} organization={organization} />
      )}
      <SentryDocumentTitle noSuffix title={getGroupDetailsTitle()}>
        <PageFiltersContainer skipLoadLastUsed forceProject={project} shouldForceProject>
          <GroupDetailsPageContent
            {...props}
            {...{
              group,
              project,
              fetchData,
              ...fetchGroupDetailsProps,
            }}
          />
        </PageFiltersContainer>
      </SentryDocumentTitle>
    </Fragment>
  );
}

export default Sentry.withProfiler(GroupDetails);

const StyledLoadingError = styled(LoadingError)`
  margin: ${space(2)};
`;

const GroupTabPanels = styled(TabPanels)`
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: stretch;
`;