import type {ReactNode} from 'react';
import {Fragment, useEffect, useMemo, useState} from 'react';
import styled from '@emotion/styled';
import {PlatformIcon} from 'platformicons';

import HighlightTopRightPattern from 'sentry-images/pattern/highlight-top-right.svg';

import {LinkButton} from 'sentry/components/button';
import {CompactSelect} from 'sentry/components/compactSelect';
import {FeedbackOnboardingLayout} from 'sentry/components/feedback/feedbackOnboarding/feedbackOnboardingLayout';
import {CRASH_REPORT_HASH} from 'sentry/components/feedback/useFeedbackOnboarding';
import RadioGroup from 'sentry/components/forms/controls/radioGroup';
import IdBadge from 'sentry/components/idBadge';
import LoadingIndicator from 'sentry/components/loadingIndicator';
import {FeedbackOnboardingWebApiBanner} from 'sentry/components/onboarding/gettingStartedDoc/utils/feedbackOnboarding';
import useCurrentProjectState from 'sentry/components/onboarding/gettingStartedDoc/utils/useCurrentProjectState';
import {useLoadGettingStarted} from 'sentry/components/onboarding/gettingStartedDoc/utils/useLoadGettingStarted';
import {PlatformOptionDropdown} from 'sentry/components/replaysOnboarding/platformOptionDropdown';
import {replayJsFrameworkOptions} from 'sentry/components/replaysOnboarding/utils';
import SidebarPanel from 'sentry/components/sidebar/sidebarPanel';
import type {CommonSidebarProps} from 'sentry/components/sidebar/types';
import {SidebarPanelKey} from 'sentry/components/sidebar/types';
import TextOverflow from 'sentry/components/textOverflow';
import {
  feedbackCrashApiPlatforms,
  feedbackNpmPlatforms,
  feedbackOnboardingPlatforms,
  feedbackWebApiPlatforms,
  feedbackWidgetPlatforms,
  replayBackendPlatforms,
  replayJsLoaderInstructionsPlatformList,
} from 'sentry/data/platformCategories';
import platforms, {otherPlatform} from 'sentry/data/platforms';
import {t, tct} from 'sentry/locale';
import {space} from 'sentry/styles/space';
import type {SelectValue} from 'sentry/types/core';
import type {PlatformKey, Project} from 'sentry/types/project';
import {trackAnalytics} from 'sentry/utils/analytics';
import {useLocation} from 'sentry/utils/useLocation';
import useOrganization from 'sentry/utils/useOrganization';
import useUrlParams from 'sentry/utils/useUrlParams';

function FeedbackOnboardingSidebar(props: CommonSidebarProps) {
  const {currentPanel, collapsed, hidePanel, orientation} = props;
  const organization = useOrganization();

  const isActive = currentPanel === SidebarPanelKey.FEEDBACK_ONBOARDING;
  const hasProjectAccess = organization.access.includes('project:read');

  const {allProjects, currentProject, setCurrentProject} = useCurrentProjectState({
    currentPanel,
    targetPanel: SidebarPanelKey.FEEDBACK_ONBOARDING,
    onboardingPlatforms: feedbackOnboardingPlatforms,
    allPlatforms: feedbackOnboardingPlatforms,
  });

  const projectSelectOptions = useMemo(() => {
    const supportedProjectItems: SelectValue<string>[] = allProjects
      .sort((aProject, bProject) => {
        // if we're comparing two projects w/ or w/o feedback alphabetical sort
        if (aProject.hasNewFeedbacks === bProject.hasNewFeedbacks) {
          return aProject.slug.localeCompare(bProject.slug);
        }
        // otherwise sort by whether or not they have feedback
        return aProject.hasNewFeedbacks ? 1 : -1;
      })
      .map(project => {
        return {
          value: project.id,
          textValue: project.id,
          label: (
            <StyledIdBadge project={project} avatarSize={16} hideOverflow disableLink />
          ),
        };
      });

    return [
      {
        label: t('Supported'),
        options: supportedProjectItems,
      },
    ];
  }, [allProjects]);

  useEffect(() => {
    if (isActive && currentProject && hasProjectAccess) {
      // this tracks clicks from any source: feedback index, issue details feedback tab, banner callout, etc
      trackAnalytics('feedback.list-view-setup-sidebar', {
        organization,
        platform: currentProject?.platform ?? 'unknown',
      });
    }
  }, [organization, currentProject, isActive, hasProjectAccess]);

  if (!isActive || !hasProjectAccess || !currentProject) {
    return null;
  }

  return (
    <TaskSidebarPanel
      orientation={orientation}
      collapsed={collapsed}
      hidePanel={hidePanel}
    >
      <TopRightBackgroundImage src={HighlightTopRightPattern} />
      <TaskList>
        <Heading>{t('Getting Started with User Feedback')}</Heading>
        <HeaderActions>
          <div
            onClick={e => {
              // we need to stop bubbling the CompactSelect click event
              // failing to do so will cause the sidebar panel to close
              // the event.target will be unmounted by the time the panel listener
              // receives the event and assume the click was outside the panel
              e.stopPropagation();
            }}
          >
            <CompactSelect
              triggerLabel={
                currentProject ? (
                  <StyledIdBadge
                    project={currentProject}
                    avatarSize={16}
                    hideOverflow
                    disableLink
                  />
                ) : (
                  t('Select a project')
                )
              }
              value={currentProject?.id}
              onChange={opt =>
                setCurrentProject(allProjects.find(p => p.id === opt.value))
              }
              triggerProps={{'aria-label': currentProject?.slug}}
              options={projectSelectOptions}
              position="bottom-end"
            />
          </div>
        </HeaderActions>
        <OnboardingContent currentProject={currentProject} />
      </TaskList>
    </TaskSidebarPanel>
  );
}

function OnboardingContent({currentProject}: {currentProject: Project}) {
  const organization = useOrganization();
  const jsFrameworkSelectOptions = replayJsFrameworkOptions().map(platform => {
    return {
      value: platform.id,
      textValue: platform.name,
      label: (
        <PlatformLabel>
          <PlatformIcon platform={platform.id} size={16} />
          <TextOverflow>{platform.name}</TextOverflow>
        </PlatformLabel>
      ),
    };
  });

  const [jsFramework, setJsFramework] = useState<{
    value: PlatformKey;
    label?: ReactNode;
    textValue?: string;
  }>(jsFrameworkSelectOptions[0]);

  const defaultTab = 'npm';
  const location = useLocation();
  const crashReportOnboarding = location.hash === CRASH_REPORT_HASH;

  const {getParamValue: setupMode, setParamValue: setSetupMode} = useUrlParams(
    'mode',
    defaultTab
  );

  const currentPlatform = currentProject.platform
    ? platforms.find(p => p.id === currentProject.platform) ?? otherPlatform
    : otherPlatform;

  const webBackendPlatform = replayBackendPlatforms.includes(currentPlatform.id);
  const showJsFrameworkInstructions = webBackendPlatform && setupMode() === 'npm';

  const crashApiPlatform = feedbackCrashApiPlatforms.includes(currentPlatform.id);
  const widgetPlatform = feedbackWidgetPlatforms.includes(currentPlatform.id);
  const webApiPlatform = feedbackWebApiPlatforms.includes(currentPlatform.id);

  const npmOnlyFramework = feedbackNpmPlatforms
    .filter((p): p is PlatformKey => p !== 'javascript')
    .includes(currentPlatform.id);

  const showRadioButtons =
    replayJsLoaderInstructionsPlatformList.includes(currentPlatform.id) &&
    !crashReportOnboarding;

  const jsFrameworkPlatform =
    replayJsFrameworkOptions().find(p => p.id === jsFramework.value) ??
    replayJsFrameworkOptions()[0];

  const {
    isLoading,
    docs: newDocs,
    dsn,
    projectKeyId,
  } = useLoadGettingStarted({
    platform:
      showJsFrameworkInstructions && !crashReportOnboarding
        ? jsFrameworkPlatform
        : currentPlatform,
    projSlug: currentProject.slug,
    productType: 'feedback',
    orgSlug: organization.slug,
  });

  // New onboarding docs for initial loading of JS Framework options
  const {docs: jsFrameworkDocs} = useLoadGettingStarted({
    platform: jsFrameworkPlatform,
    projSlug: currentProject.slug,
    orgSlug: organization.slug,
  });

  if (webApiPlatform && !crashReportOnboarding) {
    return <FeedbackOnboardingWebApiBanner />;
  }

  const radioButtons = (
    <Header>
      {showRadioButtons ? (
        <StyledRadioGroup
          label="mode"
          choices={[
            [
              'npm',
              webBackendPlatform ? (
                <PlatformSelect key="platform-select">
                  {tct('I use [platformSelect]', {
                    platformSelect: (
                      <CompactSelect
                        triggerLabel={jsFramework.label}
                        value={jsFramework.value}
                        onChange={setJsFramework}
                        options={jsFrameworkSelectOptions}
                        position="bottom-end"
                        key={jsFramework.textValue}
                        disabled={setupMode() === 'jsLoader'}
                      />
                    ),
                  })}
                  {jsFrameworkDocs?.platformOptions && (
                    <PlatformOptionDropdown
                      platformOptions={jsFrameworkDocs?.platformOptions}
                      disabled={setupMode() === 'jsLoader'}
                    />
                  )}
                </PlatformSelect>
              ) : (
                t('I use NPM or Yarn')
              ),
            ],
            ['jsLoader', t('I use HTML templates (Loader Script)')],
          ]}
          value={setupMode()}
          onChange={setSetupMode}
          tooltipPosition={'top-start'}
        />
      ) : (
        newDocs?.platformOptions &&
        widgetPlatform &&
        !crashReportOnboarding &&
        !isLoading && (
          <PlatformSelect>
            {tct("I'm using [platformSelect]", {
              platformSelect: (
                <PlatformOptionDropdown platformOptions={newDocs?.platformOptions} />
              ),
            })}
          </PlatformSelect>
        )
      )}
    </Header>
  );

  if (isLoading) {
    return (
      <Fragment>
        {radioButtons}
        <LoadingIndicator />
      </Fragment>
    );
  }

  // No platform or not supported or no docs
  if (
    !currentPlatform ||
    !feedbackOnboardingPlatforms.includes(currentPlatform.id) ||
    !newDocs ||
    !dsn ||
    !projectKeyId
  ) {
    return (
      <Fragment>
        <div>
          {tct(
            'Fiddlesticks. This checklist isn’t available for your [project] project yet, but for now, go to Sentry docs for installation details.',
            {project: currentProject.slug}
          )}
        </div>
        <div>
          <LinkButton
            size="sm"
            href="https://docs.sentry.io/platforms/javascript/user-feedback/"
            external
          >
            {t('Read Docs')}
          </LinkButton>
        </div>
      </Fragment>
    );
  }

  function getConfig() {
    if (crashReportOnboarding) {
      return 'crashReportOnboarding';
    }
    if (crashApiPlatform) {
      return 'feedbackOnboardingCrashApi';
    }
    if (
      setupMode() === 'npm' || // switched to NPM option
      (!setupMode() && defaultTab === 'npm' && widgetPlatform) || // default value for FE frameworks when ?mode={...} in URL is not set yet
      npmOnlyFramework // even if '?mode=jsLoader', only show npm instructions for FE frameworks)
    ) {
      return 'feedbackOnboardingNpm';
    }
    return 'feedbackOnboardingJsLoader';
  }

  return (
    <Fragment>
      {radioButtons}
      <FeedbackOnboardingLayout
        docsConfig={newDocs}
        dsn={dsn}
        activeProductSelection={[]}
        platformKey={currentPlatform.id}
        projectId={currentProject.id}
        projectSlug={currentProject.slug}
        configType={getConfig()}
        projectKeyId={projectKeyId}
      />
    </Fragment>
  );
}

const Header = styled('div')`
  padding: ${space(1)} 0;
`;

const TaskSidebarPanel = styled(SidebarPanel)`
  width: 600px;
  max-width: 100%;
`;

const TopRightBackgroundImage = styled('img')`
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  user-select: none;
`;

const TaskList = styled('div')`
  display: grid;
  grid-auto-flow: row;
  grid-template-columns: 100%;
  gap: ${space(1)};
  margin: 50px ${space(4)} ${space(4)} ${space(4)};
`;

const Heading = styled('div')`
  display: flex;
  color: ${p => p.theme.activeText};
  font-size: ${p => p.theme.fontSizeExtraSmall};
  text-transform: uppercase;
  font-weight: ${p => p.theme.fontWeightBold};
  line-height: 1;
  margin-top: ${space(3)};
`;

const StyledIdBadge = styled(IdBadge)`
  overflow: hidden;
  white-space: nowrap;
  flex-shrink: 1;
`;

const HeaderActions = styled('div')`
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  gap: ${space(3)};
`;

const PlatformLabel = styled('div')`
  display: flex;
  gap: ${space(1)};
  align-items: center;
`;

const PlatformSelect = styled('div')`
  display: flex;
  gap: ${space(1)};
  align-items: center;
  flex-wrap: wrap;
`;

const StyledRadioGroup = styled(RadioGroup)`
  padding: ${space(1)} 0;
`;

export default FeedbackOnboardingSidebar;