/*
 * SonarQube
 * Copyright (C) 2009-2024 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
import styled from '@emotion/styled';
import classNames from 'classnames';
import { isEqual } from 'date-fns';
import { Badge, HelperHintIcon, LightLabel, Spinner, themeColor } from 'design-system';
import * as React from 'react';
import Tooltip from '../../../components/controls/Tooltip';
import DateFormatter from '../../../components/intl/DateFormatter';
import { toShortISO8601String } from '../../../helpers/dates';
import { translate } from '../../../helpers/l10n';

import { ComponentQualifier } from '../../../types/component';
import { ParsedAnalysis } from '../../../types/project-activity';
import { AnalysesByDay, Query, activityQueryChanged, getAnalysesByVersionByDay } from '../utils';
import ProjectActivityAnalysis, { BaselineMarker } from './ProjectActivityAnalysis';

interface Props {
  analyses: ParsedAnalysis[];
  analysesLoading: boolean;
  canAdmin?: boolean;
  canDeleteAnalyses?: boolean;
  initializing: boolean;
  leakPeriodDate?: Date;
  project: { qualifier: string };
  query: Query;
  onUpdateQuery: (changes: Partial<Query>) => void;
}

const LIST_MARGIN_TOP = 24;

export default class ProjectActivityAnalysesList extends React.PureComponent<Props> {
  scrollContainer?: HTMLUListElement | null;

  componentDidUpdate(prevProps: Props) {
    const selectedDate = this.props.query.selectedDate
      ? this.props.query.selectedDate.valueOf()
      : null;

    if (
      this.scrollContainer &&
      activityQueryChanged(prevProps.query, this.props.query) &&
      !this.props.analyses.some(({ date }) => date.valueOf() === selectedDate)
    ) {
      this.scrollContainer.scrollTop = 0;
    }
  }

  handleUpdateSelectedDate = (date: Date) => {
    this.props.onUpdateQuery({ selectedDate: date });
  };

  getNewCodePeriodStartKey(versionByDay: AnalysesByDay[]): {
    firstNewCodeAnalysisKey: string | undefined;
    baselineAnalysisKey: string | undefined;
  } {
    const { leakPeriodDate } = this.props;
    if (!leakPeriodDate) {
      return { firstNewCodeAnalysisKey: undefined, baselineAnalysisKey: undefined };
    }
    // In response, the first new code analysis comes before the baseline analysis
    // This variable is to track the previous analysis and return when next is baseline analysis
    let prevAnalysis;
    for (const version of versionByDay) {
      const days = Object.keys(version.byDay);
      for (const day of days) {
        for (const analysis of version.byDay[day]) {
          if (isEqual(leakPeriodDate, analysis.date)) {
            return {
              firstNewCodeAnalysisKey: prevAnalysis?.key,
              baselineAnalysisKey: analysis.key,
            };
          }
          prevAnalysis = analysis;
        }
      }
    }

    return { firstNewCodeAnalysisKey: undefined, baselineAnalysisKey: undefined };
  }

  renderAnalysis(analysis: ParsedAnalysis, newCodeKey?: string) {
    const firstAnalysisKey = this.props.analyses[0].key;

    const selectedDate = this.props.query.selectedDate
      ? this.props.query.selectedDate.valueOf()
      : null;

    return (
      <ProjectActivityAnalysis
        analysis={analysis}
        canAdmin={this.props.canAdmin}
        canCreateVersion={this.props.project.qualifier === ComponentQualifier.Project}
        canDeleteAnalyses={this.props.canDeleteAnalyses}
        isBaseline={analysis.key === newCodeKey}
        isFirst={analysis.key === firstAnalysisKey}
        key={analysis.key}
        selected={analysis.date.valueOf() === selectedDate}
        onUpdateSelectedDate={this.handleUpdateSelectedDate}
      />
    );
  }

  render() {
    const byVersionByDay = getAnalysesByVersionByDay(this.props.analyses, this.props.query);
    const newCodePeriod = this.getNewCodePeriodStartKey(byVersionByDay);
    const hasFilteredData =
      byVersionByDay.length > 1 ||
      (byVersionByDay.length === 1 && Object.keys(byVersionByDay[0].byDay).length > 0);
    if (this.props.analyses.length === 0 || !hasFilteredData) {
      return (
        <div>
          {this.props.initializing ? (
            <div className="sw-p-4 sw-body-sm">
              <Spinner />
            </div>
          ) : (
            <div className="sw-p-4 sw-body-sm">
              <LightLabel>{translate('no_results')}</LightLabel>
            </div>
          )}
        </div>
      );
    }

    return (
      <ul
        className="it__project-activity-versions-list sw-box-border sw-overflow-auto sw-grow sw-shrink-0 sw-py-0 sw-px-4"
        ref={(element) => (this.scrollContainer = element)}
        style={{
          height: 'calc(100vh - 250px)',
          marginTop:
            this.props.project.qualifier === ComponentQualifier.Project
              ? LIST_MARGIN_TOP
              : undefined,
        }}
      >
        {newCodePeriod.baselineAnalysisKey !== undefined &&
          newCodePeriod.firstNewCodeAnalysisKey === undefined && (
            <BaselineMarker className="sw-body-sm sw-mb-2">
              <span className="sw-py-1/2 sw-px-1">
                {translate('project_activity.new_code_period_start')}
              </span>
              <Tooltip
                overlay={translate('project_activity.new_code_period_start.help')}
                placement="top"
              >
                <HelperHintIcon className="sw-ml-1" />
              </Tooltip>
            </BaselineMarker>
          )}

        {byVersionByDay.map((version, idx) => {
          const days = Object.keys(version.byDay);
          if (days.length <= 0) {
            return null;
          }

          return (
            <li key={version.key || 'noversion'}>
              {version.version && (
                <VersionTagStyled
                  className={classNames(
                    'sw-sticky sw-top-0 sw-left-0 sw-pb-1 -sw-ml-4 sw-z-normal',
                    {
                      'sw-top-0 sw-pt-0': idx === 0,
                    },
                  )}
                >
                  <Tooltip
                    mouseEnterDelay={0.5}
                    overlay={`${translate('version')} ${version.version}`}
                  >
                    <Badge className="sw-p-1">{version.version}</Badge>
                  </Tooltip>
                </VersionTagStyled>
              )}
              <ul className="it__project-activity-days-list">
                {days.map((day) => (
                  <li
                    className="it__project-activity-day sw-mt-1 sw-mb-4"
                    data-day={toShortISO8601String(Number(day))}
                    key={day}
                  >
                    <div className="sw-body-md-highlight sw-mb-3">
                      <DateFormatter date={Number(day)} long />
                    </div>
                    <ul className="it__project-activity-analyses-list">
                      {version.byDay[day]?.map((analysis) =>
                        this.renderAnalysis(analysis, newCodePeriod.firstNewCodeAnalysisKey),
                      )}
                    </ul>
                  </li>
                ))}
              </ul>
            </li>
          );
        })}
        {this.props.analysesLoading && (
          <li className="sw-text-center">
            <Spinner />
          </li>
        )}
      </ul>
    );
  }
}

const VersionTagStyled = styled.div`
  background-color: ${themeColor('backgroundSecondary')};
`;