import {Fragment} from 'react';
import styled from '@emotion/styled';

import {LinkButton} from 'sentry/components/button';
import TextOverflow from 'sentry/components/textOverflow';
import TimeSince from 'sentry/components/timeSince';
import Version from 'sentry/components/version';
import {IconReleases} from 'sentry/icons';
import {t} from 'sentry/locale';
import {space} from 'sentry/styles/space';
import type {Project} from 'sentry/types/project';
import type {Deploy as DeployType} from 'sentry/types/release';
import getDynamicText from 'sentry/utils/getDynamicText';

const DEPLOY_COUNT = 2;

type Props = {
  project: Project;
  shorten?: boolean;
};

function Deploys({project, shorten}: Props) {
  const flattenedDeploys = Object.entries(project.latestDeploys || {}).map(
    ([environment, value]): Pick<
      DeployType,
      'version' | 'dateFinished' | 'environment'
    > => ({environment, ...value})
  );

  const deploys = (flattenedDeploys || [])
    .sort(
      (a, b) => new Date(b.dateFinished).getTime() - new Date(a.dateFinished).getTime()
    )
    .slice(0, DEPLOY_COUNT);

  if (!deploys.length) {
    return <NoDeploys />;
  }

  return (
    <DeployRows>
      {deploys.map(deploy => (
        <Deploy
          key={`${deploy.environment}-${deploy.version}`}
          deploy={deploy}
          project={project}
          shorten={shorten}
        />
      ))}
    </DeployRows>
  );
}

export default Deploys;

type DeployProps = Props & {
  deploy: Pick<DeployType, 'version' | 'dateFinished' | 'environment'>;
};

function Deploy({deploy, project, shorten}: DeployProps) {
  return (
    <Fragment>
      <IconReleases size="sm" />
      <TextOverflow>
        <Environment>{deploy.environment}</Environment>
        <Version
          version={deploy.version}
          projectId={project.id}
          tooltipRawVersion
          truncate
        />
      </TextOverflow>

      <DeployTime>
        {getDynamicText({
          fixed: '3 hours ago',
          value: (
            <TimeSince
              date={deploy.dateFinished}
              unitStyle={shorten ? 'short' : 'human'}
            />
          ),
        })}
      </DeployTime>
    </Fragment>
  );
}

function NoDeploys() {
  return (
    <GetStarted>
      <LinkButton size="sm" href="https://docs.sentry.io/product/releases/" external>
        {t('Track Deploys')}
      </LinkButton>
    </GetStarted>
  );
}
const DeployContainer = styled('div')`
  padding: ${space(2)};
  height: 115px;
`;

const DeployRows = styled(DeployContainer)`
  display: grid;
  grid-template-columns: 30px 1fr 1fr;
  grid-template-rows: auto;
  grid-column-gap: ${space(1)};
  grid-row-gap: ${space(1)};
  font-size: ${p => p.theme.fontSizeMedium};
  line-height: 1.2;
`;

const Environment = styled('div')`
  color: ${p => p.theme.textColor};
  margin: 0;
`;

const DeployTime = styled('div')`
  color: ${p => p.theme.gray300};
  overflow: hidden;
  text-align: right;
  text-overflow: ellipsis;
`;

const GetStarted = styled(DeployContainer)`
  display: flex;
  align-items: center;
  justify-content: center;
`;

export {DeployRows, GetStarted, TextOverflow};