import React, {Fragment, useState} from 'react';
import styled from '@emotion/styled';
import omit from 'lodash/omit';

import Alert from 'sentry/components/alert';
import {Breadcrumbs} from 'sentry/components/breadcrumbs';
import {Button} from 'sentry/components/button';
import ButtonBar from 'sentry/components/buttonBar';
import FeedbackWidgetButton from 'sentry/components/feedback/widget/feedbackWidgetButton';
import * as Layout from 'sentry/components/layouts/thirds';
import ExternalLink from 'sentry/components/links/externalLink';
import {DatePageFilter} from 'sentry/components/organizations/datePageFilter';
import {EnvironmentPageFilter} from 'sentry/components/organizations/environmentPageFilter';
import PageFilterBar from 'sentry/components/organizations/pageFilterBar';
import {ProjectPageFilter} from 'sentry/components/organizations/projectPageFilter';
import {PageHeadingQuestionTooltip} from 'sentry/components/pageHeadingQuestionTooltip';
import {Tooltip} from 'sentry/components/tooltip';
import {t, tct} from 'sentry/locale';
import {space} from 'sentry/styles/space';
import {MutableSearch} from 'sentry/utils/tokenizeSearch';
import {useLocation} from 'sentry/utils/useLocation';
import useOrganization from 'sentry/utils/useOrganization';
import useRouter from 'sentry/utils/useRouter';
import WebVitalMeters from 'sentry/views/performance/browser/webVitals/components/webVitalMeters';
import {PagePerformanceTable} from 'sentry/views/performance/browser/webVitals/pagePerformanceTable';
import {PerformanceScoreChart} from 'sentry/views/performance/browser/webVitals/performanceScoreChart';
import {
  MODULE_DESCRIPTION,
  MODULE_DOC_LINK,
  MODULE_TITLE,
} from 'sentry/views/performance/browser/webVitals/settings';
import {useProjectRawWebVitalsQuery} from 'sentry/views/performance/browser/webVitals/utils/queries/rawWebVitalsQueries/useProjectRawWebVitalsQuery';
import {calculatePerformanceScoreFromStoredTableDataRow} from 'sentry/views/performance/browser/webVitals/utils/queries/storedScoreQueries/calculatePerformanceScoreFromStored';
import {useProjectWebVitalsScoresQuery} from 'sentry/views/performance/browser/webVitals/utils/queries/storedScoreQueries/useProjectWebVitalsScoresQuery';
import type {WebVitals} from 'sentry/views/performance/browser/webVitals/utils/types';
import {useOnboardingProject} from 'sentry/views/performance/browser/webVitals/utils/useOnboardingProject';
import {WebVitalsDetailPanel} from 'sentry/views/performance/browser/webVitals/webVitalsDetailPanel';
import {ModulePageProviders} from 'sentry/views/performance/modulePageProviders';
import Onboarding from 'sentry/views/performance/onboarding';
import {useHasDataTrackAnalytics} from 'sentry/views/performance/utils/analytics/useHasDataTrackAnalytics';
import {useModuleBreadcrumbs} from 'sentry/views/performance/utils/useModuleBreadcrumbs';

export function WebVitalsLandingPage() {
  const organization = useOrganization();
  const location = useLocation();
  const onboardingProject = useOnboardingProject();

  const router = useRouter();

  const [state, setState] = useState<{webVital: WebVitals | null}>({
    webVital: (location.query.webVital as WebVitals) ?? null,
  });

  const {data: projectData, isLoading} = useProjectRawWebVitalsQuery({});
  const {data: projectScores, isLoading: isProjectScoresLoading} =
    useProjectWebVitalsScoresQuery();

  const noTransactions = !isLoading && !projectData?.data?.[0]?.['count()'];

  const projectScore =
    isProjectScoresLoading || isLoading || noTransactions
      ? undefined
      : calculatePerformanceScoreFromStoredTableDataRow(projectScores?.data?.[0]);

  useHasDataTrackAnalytics(
    new MutableSearch(
      // TODO: check for all possible WebVital data sources
      'span.op:[ui.interaction.click,ui.interaction.hover,ui.interaction.drag,ui.interaction.press]'
    ),
    'api.performance.vital.vital-landing',
    'insight.page_loads.vital'
  );

  const crumbs = useModuleBreadcrumbs('vital');

  return (
    <React.Fragment>
      <Layout.Header>
        <Layout.HeaderContent>
          <Breadcrumbs crumbs={crumbs} />

          <Layout.Title>
            {MODULE_TITLE}
            <PageHeadingQuestionTooltip
              docsUrl={MODULE_DOC_LINK}
              title={MODULE_DESCRIPTION}
            />
          </Layout.Title>
        </Layout.HeaderContent>
        <Layout.HeaderActions>
          <ButtonBar gap={1}>
            <FeedbackWidgetButton />
          </ButtonBar>
        </Layout.HeaderActions>
      </Layout.Header>

      <Layout.Body>
        <Layout.Main fullWidth>
          <TopMenuContainer>
            <PageFilterBar condensed>
              <ProjectPageFilter />
              <EnvironmentPageFilter />
              <DatePageFilter />
            </PageFilterBar>
          </TopMenuContainer>

          {onboardingProject && (
            <OnboardingContainer>
              <Onboarding organization={organization} project={onboardingProject} />
            </OnboardingContainer>
          )}
          {!onboardingProject && (
            <Fragment>
              <PerformanceScoreChartContainer>
                <PerformanceScoreChart
                  projectScore={projectScore}
                  isProjectScoreLoading={isLoading || isProjectScoresLoading}
                  webVital={state.webVital}
                />
              </PerformanceScoreChartContainer>
              <WebVitalMetersContainer>
                <WebVitalMeters
                  projectData={projectData}
                  projectScore={projectScore}
                  onClick={webVital => setState({...state, webVital})}
                />
              </WebVitalMetersContainer>
              <PagePerformanceTable />
              <PagesTooltipContainer>
                <Tooltip
                  isHoverable
                  title={
                    <div>
                      <div>
                        {tct(
                          'If pages you expect to see are missing, your framework is most likely not supported by the SDK, or your traffic is coming from unsupported browsers. Find supported browsers and frameworks [link:here].',
                          {
                            link: (
                              <ExternalLink href="https://docs.sentry.io/product/insights/web-vitals/#prerequisites-and-limitations" />
                            ),
                          }
                        )}
                      </div>
                      <br />
                      <div>
                        {t(
                          'Keep your JavaScript SDK updated to the latest version for the best Web Vitals support.'
                        )}
                      </div>
                    </div>
                  }
                >
                  <PagesTooltip>{t('Why are my pages not showing up?')}</PagesTooltip>
                </Tooltip>
              </PagesTooltipContainer>
            </Fragment>
          )}
        </Layout.Main>
      </Layout.Body>
      <WebVitalsDetailPanel
        webVital={state.webVital}
        onClose={() => {
          router.replace({
            pathname: router.location.pathname,
            query: omit(router.location.query, 'webVital'),
          });
          setState({...state, webVital: null});
        }}
      />
    </React.Fragment>
  );
}

function PageWithProviders() {
  return (
    <ModulePageProviders moduleName="vital" features="insights-initial-modules">
      <WebVitalsLandingPage />
    </ModulePageProviders>
  );
}

export default PageWithProviders;

const TopMenuContainer = styled('div')`
  display: flex;
`;

const PerformanceScoreChartContainer = styled('div')`
  margin-bottom: ${space(1)};
`;

const OnboardingContainer = styled('div')`
  margin-top: ${space(2)};
`;

const WebVitalMetersContainer = styled('div')`
  margin-bottom: ${space(4)};
`;

export const AlertContent = styled('div')`
  display: grid;
  grid-template-columns: 1fr max-content;
  gap: ${space(1)};
  align-items: center;
`;

export const DismissButton = styled(Button)`
  color: ${p => p.theme.alert.info.color};
  pointer-events: all;
  &:hover {
    opacity: 0.5;
  }
`;

export const StyledAlert = styled(Alert)`
  margin-top: ${space(2)};
`;

export const PagesTooltip = styled('span')`
  font-size: ${p => p.theme.fontSizeSmall};
  color: ${p => p.theme.gray300};
  text-decoration: underline dotted ${p => p.theme.gray300};
`;

export const PagesTooltipContainer = styled('div')`
  display: flex;
`;