import {Fragment, useCallback, useEffect, useState} from 'react';
import styled from '@emotion/styled';

import {addSuccessMessage} from 'sentry/actionCreators/indicator';
import {Button} from 'sentry/components/button';
import ButtonBar from 'sentry/components/buttonBar';
import EmptyMessage from 'sentry/components/emptyMessage';
import FeatureBadge from 'sentry/components/featureBadge';
import {feedbackClient} from 'sentry/components/featureFeedback/feedbackModal';
import LoadingError from 'sentry/components/loadingError';
import {Panel, PanelBody, PanelFooter, PanelHeader} from 'sentry/components/panels';
import {IconFile, IconFlag, IconHappy, IconMeh, IconSad} from 'sentry/icons';
import {IconChevron} from 'sentry/icons/iconChevron';
import {t} from 'sentry/locale';
import ConfigStore from 'sentry/stores/configStore';
import {space} from 'sentry/styles/space';
import {isActiveSuperuser} from 'sentry/utils/isActiveSuperuser';
import marked from 'sentry/utils/marked';
import {useApiQuery} from 'sentry/utils/queryClient';
import useOrganization from 'sentry/utils/useOrganization';
import useRouter from 'sentry/utils/useRouter';
import {AiLoaderMessage} from 'sentry/views/issueDetails/openAIFixSuggestion/aiLoaderMessage';
import {useOpenAISuggestionLocalStorage} from 'sentry/views/issueDetails/openAIFixSuggestion/useOpenAISuggestionLocalStorage';
import {experimentalFeatureTooltipDesc} from 'sentry/views/issueDetails/openAIFixSuggestion/utils';

enum OpenAISatisfactoryLevel {
  HELPED = 'helped',
  PARTIALLY_HELPED = 'partially_helped',
  DID_NOT_HELP = 'did_not_help',
}

const openAIFeedback = {
  [OpenAISatisfactoryLevel.HELPED]: t('It helped me solve the issue'),
  [OpenAISatisfactoryLevel.PARTIALLY_HELPED]: t('It partially helped me solve the issue'),
  [OpenAISatisfactoryLevel.DID_NOT_HELP]: t('It did not help me solve the issue'),
};

type Props = {
  eventID: string;
  projectSlug: string;
};

export function OpenAIFixSuggestionPanel({eventID, projectSlug}: Props) {
  const user = ConfigStore.get('user');
  const organization = useOrganization();
  const router = useRouter();
  const showSuggestedFix = router.location.query.showSuggestedFix === 'true';
  const [individualConsent, setIndividualConsent] = useOpenAISuggestionLocalStorage();
  const [expandedSuggestedFix, setExpandedSuggestedFix] = useState(showSuggestedFix);

  useEffect(() => {
    setExpandedSuggestedFix(!!router.location.query.showSuggestedFix);
  }, [router.location.query.showSuggestedFix]);

  const handleOpenAISuggestionFeedback = useCallback(
    (openAISatisfactoryLevel: OpenAISatisfactoryLevel) => {
      feedbackClient.captureEvent({
        request: {
          url: window.location.href, // gives the full url (origin + pathname)
        },
        tags: {
          featureName: 'open-ai-suggestion',
        },
        user,
        level: 'info',
        message: `OpenAI Suggestion Feedback - ${openAIFeedback[openAISatisfactoryLevel]}`,
      });

      addSuccessMessage('Thank you for your feedback!');

      setExpandedSuggestedFix(false);
    },
    [user]
  );

  const {
    data,
    isLoading: dataIsLoading,
    isError: dataIsError,
    refetch: dataRefetch,
    error,
  } = useApiQuery<{suggestion: string}>(
    [
      `/projects/${organization.slug}/${projectSlug}/events/${eventID}/ai-fix-suggest/`,
      {query: {consent: individualConsent ? 'yes' : undefined}},
    ],
    {
      staleTime: Infinity,
      retry: false,
      enabled: showSuggestedFix,
    }
  );

  let PolicyErrorState;
  if (error?.responseJSON?.restriction === 'subprocessor') {
    PolicyErrorState = (
      <EmptyMessage
        icon={<IconFile size="xl" />}
        title={t('OpenAI Subprocessor Acknowledgment')}
        description={t(
          'In order to use this feature, your organization needs to accept the OpenAI Subprocessor Acknowledgment.'
        )}
        action={
          <ButtonBar gap={2}>
            <Button
              to={{
                pathname: router.location.pathname,
                query: {...router.location.query, showSuggestedFix: undefined},
              }}
            >
              {t('Dismiss')}
            </Button>
            <Button priority="primary" to={`/settings/${organization.slug}/legal/`}>
              {t('Accept in Settings')}
            </Button>
          </ButtonBar>
        }
      />
    );
  }

  if (error?.responseJSON?.restriction === 'individual_consent') {
    const activeSuperUser = isActiveSuperuser();

    PolicyErrorState = (
      <EmptyMessage
        icon={<IconFlag size="xl" />}
        title={t('We need your consent')}
        description={t(
          'By using this feature, you agree that OpenAI is a subprocessor and may process the data that you’ve chosen to submit. Sentry makes no guarantees as to the accuracy of the feature’s AI-generated recommendations.'
        )}
        action={
          <ButtonBar gap={2}>
            <Button
              to={{
                pathname: router.location.pathname,
                query: {...router.location.query, showSuggestedFix: undefined},
              }}
            >
              {t('Dismiss')}
            </Button>
            <Button
              priority="primary"
              onClick={() => {
                setIndividualConsent(true);
                dataRefetch();
              }}
              disabled={activeSuperUser}
              title={
                activeSuperUser ? t("Superusers can't consent to policies") : undefined
              }
            >
              {t('Confirm')}
            </Button>
          </ButtonBar>
        }
      />
    );
  }

  if (!organization.features.includes('open-ai-suggestion')) {
    return null;
  }

  if (!showSuggestedFix) {
    return null;
  }

  return (
    <FixSuggestionPanel>
      <FixSuggestionPanelHeader isExpanded={expandedSuggestedFix}>
        <HeaderDescription>
          {t('Suggested Fix')}
          <FeatureBadgeNotUppercase
            type="experimental"
            title={experimentalFeatureTooltipDesc}
          />
        </HeaderDescription>
        <Button
          size="xs"
          title={t('Toggle Suggested Fix Panel')}
          aria-label={t('Toggle Suggested Fix Panel')}
          icon={<IconChevron direction={expandedSuggestedFix ? 'up' : 'down'} />}
          onClick={() => setExpandedSuggestedFix(!expandedSuggestedFix)}
        />
      </FixSuggestionPanelHeader>
      {expandedSuggestedFix && (
        <Fragment>
          <StyledPanelBody withPadding whiteBg={dataIsLoading}>
            {dataIsLoading ? (
              <AiLoaderWrapper>
                <div className="ai-loader" />
                <AiLoaderMessage />
              </AiLoaderWrapper>
            ) : dataIsError ? (
              PolicyErrorState ? (
                PolicyErrorState
              ) : (
                <LoadingErrorWithoutMarginBottom onRetry={dataRefetch} />
              )
            ) : (
              <div
                dangerouslySetInnerHTML={{
                  __html: marked(data.suggestion, {
                    gfm: true,
                    breaks: true,
                  }),
                }}
              />
            )}
          </StyledPanelBody>
          {!dataIsLoading && !dataIsError && (
            <PanelFooter>
              <Feedback>
                <strong>{t('Was this helpful?')}</strong>
                <div>
                  <Button
                    title={openAIFeedback[OpenAISatisfactoryLevel.DID_NOT_HELP]}
                    aria-label={openAIFeedback[OpenAISatisfactoryLevel.DID_NOT_HELP]}
                    icon={<IconSad color="red300" />}
                    size="xs"
                    borderless
                    onClick={() =>
                      handleOpenAISuggestionFeedback(OpenAISatisfactoryLevel.DID_NOT_HELP)
                    }
                  />
                  <Button
                    title={openAIFeedback[OpenAISatisfactoryLevel.PARTIALLY_HELPED]}
                    aria-label={openAIFeedback[OpenAISatisfactoryLevel.PARTIALLY_HELPED]}
                    icon={<IconMeh color="yellow300" />}
                    size="xs"
                    borderless
                    onClick={() =>
                      handleOpenAISuggestionFeedback(
                        OpenAISatisfactoryLevel.PARTIALLY_HELPED
                      )
                    }
                  />
                  <Button
                    title={openAIFeedback[OpenAISatisfactoryLevel.HELPED]}
                    aria-label={openAIFeedback[OpenAISatisfactoryLevel.HELPED]}
                    icon={<IconHappy color="green300" />}
                    size="xs"
                    borderless
                    onClick={() =>
                      handleOpenAISuggestionFeedback(OpenAISatisfactoryLevel.HELPED)
                    }
                  />
                </div>
              </Feedback>
            </PanelFooter>
          )}
        </Fragment>
      )}
    </FixSuggestionPanel>
  );
}

const FixSuggestionPanel = styled(Panel)`
  margin-top: ${space(1.5)};
  margin-bottom: ${space(1.5)};
  overflow: hidden;
`;

const StyledPanelBody = styled(PanelBody)<{whiteBg: boolean}>`
  background: ${p => (p.whiteBg ? 'white' : undefined)};
  min-height: 268px;
`;

const FixSuggestionPanelHeader = styled(PanelHeader)<{isExpanded: boolean}>`
  border-bottom: ${p => (p.isExpanded ? 'inherit' : 'none')};
`;

const HeaderDescription = styled('div')`
  display: flex;
  align-items: center;
`;

const Feedback = styled('div')`
  padding: ${space(1)} ${space(2)};
  display: grid;
  grid-template-columns: 1fr max-content max-content max-content;
  align-items: center;
  text-align: right;
  gap: ${space(1)};
`;

const LoadingErrorWithoutMarginBottom = styled(LoadingError)`
  margin-bottom: 0;
`;

const FeatureBadgeNotUppercase = styled(FeatureBadge)`
  text-transform: capitalize;
`;

const AiLoaderWrapper = styled('div')`
  text-align: center;
  padding-bottom: ${space(1.5)};
`;