/*
 * SonarQube
 * Copyright (C) 2009-2023 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 { keyframes } from '@emotion/react';
import styled from '@emotion/styled';
import React from 'react';
import { useIntl } from 'react-intl';
import ReactJoyride, {
  Props as JoyrideProps,
  Step as JoyrideStep,
  TooltipRenderProps,
} from 'react-joyride';
import tw from 'twin.macro';
import { GLOBAL_POPUP_Z_INDEX, PopupZLevel, themeColor } from '../helpers';
import { ButtonLink, ButtonPrimary, WrapperButton } from './buttons';
import { CloseIcon } from './icons';
import { PopupWrapper } from './popups';

type Placement = 'left' | 'right' | 'top' | 'bottom' | 'center';

export interface SpotlightTourProps extends Omit<JoyrideProps, 'steps'> {
  backLabel?: string;
  closeLabel?: string;
  nextLabel?: string;
  skipLabel?: string;
  stepXofYLabel?: (x: number, y: number) => string;
  steps: SpotlightTourStep[];
}

export type SpotlightTourStep = Pick<JoyrideStep, 'target' | 'content' | 'title'> & {
  placement?: Placement;
};

// React Joyride needs a "global" property to be defined on window. It will throw an error if it cannot find it.
// eslint-disable-next-line @typescript-eslint/no-unsafe-assignment, @typescript-eslint/no-unsafe-member-access
(window as any).global = (window as any).global ?? {};

const PULSE_SIZE = 8;
const ARROW_LENGTH = 40;
const DEFAULT_PLACEMENT = 'bottom';

function TooltipComponent({
  continuous,
  index,
  step,
  size,
  isLastStep,
  backProps,
  skipProps,
  closeProps,
  primaryProps,
  stepXofYLabel,
  tooltipProps,
}: TooltipRenderProps & {
  step: SpotlightTourStep;
  stepXofYLabel: SpotlightTourProps['stepXofYLabel'];
}) {
  const [arrowPosition, setArrowPosition] = React.useState({ left: 0, top: 0, rotate: '0deg' });
  const ref = React.useRef<HTMLDivElement | null>(null);
  const setRef = React.useCallback((node: HTMLDivElement) => {
    ref.current = node;
  }, []);
  const placement = step.placement ?? DEFAULT_PLACEMENT;
  const intl = useIntl();

  React.useEffect(() => {
    // We don't compute for "center"; "center" will simply not show any arrow.
    if (placement !== 'center' && ref.current?.parentNode) {
      let left = 0;
      let top = 0;
      let rotate = '0deg';

      const rect = (ref.current.parentNode as HTMLDivElement).getBoundingClientRect();
      // In case target is null for some reason we use mocking object
      const targetRect = (typeof step.target === 'string'
        ? document.querySelector(step.target)?.getBoundingClientRect()
        : step.target.getBoundingClientRect()) ?? { height: 0, y: 0, x: 0, width: 0 };

      if (placement === 'right') {
        left = -ARROW_LENGTH - PULSE_SIZE;
        top = Math.abs(targetRect.y - rect.y) + targetRect.height / 2 - PULSE_SIZE / 2;
        rotate = '0deg';
      } else if (placement === 'left') {
        left = rect.width + ARROW_LENGTH + PULSE_SIZE;
        top = Math.abs(targetRect.y - rect.y) + targetRect.height / 2 - PULSE_SIZE / 2;
        rotate = '180deg';
      } else if (placement === 'bottom') {
        left = Math.abs(targetRect.x - rect.x) + targetRect.width / 2 - PULSE_SIZE / 2;
        top = -ARROW_LENGTH - PULSE_SIZE;
        rotate = '90deg';
      } else if (placement === 'top') {
        left = Math.abs(targetRect.x - rect.x) + targetRect.width / 2 - PULSE_SIZE / 2;
        top = rect.height + ARROW_LENGTH + PULSE_SIZE;
        rotate = '-90deg';
      }

      setArrowPosition({ left, top, rotate });
    }
  }, [step, ref, setArrowPosition, placement]);

  return (
    <StyledPopupWrapper
      className="sw-p-3 sw-body-sm sw-w-[315px] sw-relative sw-border-0"
      placement={(step.placement as Placement | undefined) ?? DEFAULT_PLACEMENT}
      zLevel={PopupZLevel.Absolute}
      {...tooltipProps}
    >
      {placement !== 'center' && (
        <SpotlightArrowWrapper left={arrowPosition.left} top={arrowPosition.top}>
          <SpotlightArrow rotate={arrowPosition.rotate} />
        </SpotlightArrowWrapper>
      )}

      <div className="sw-flex sw-justify-between" ref={setRef}>
        <strong className="sw-body-md-highlight sw-mb-2">{step.title}</strong>
        <WrapperButton
          className="sw-w-[30px] sw-h-[30px] sw--mt-2 sw--mr-2 sw-flex sw-justify-center"
          {...skipProps}
        >
          <CloseIcon className="sw-mr-0" />
        </WrapperButton>
      </div>
      <div>{step.content}</div>
      <div className="sw-flex sw-justify-between sw-items-center sw-mt-3">
        <strong>
          {stepXofYLabel
            ? stepXofYLabel(index + 1, size)
            : intl.formatMessage({ id: 'guiding.step_x_of_y' }, { '0': index + 1, '1': size })}
        </strong>
        <div>
          {index > 0 && (
            <ButtonLink className="sw-mr-4" {...backProps}>
              {backProps.title}
            </ButtonLink>
          )}
          {continuous && !isLastStep && (
            <ButtonPrimary {...primaryProps}>{primaryProps.title}</ButtonPrimary>
          )}
          {(!continuous || isLastStep) && (
            <ButtonPrimary {...closeProps}>{closeProps.title}</ButtonPrimary>
          )}
        </div>
      </div>
    </StyledPopupWrapper>
  );
}

export function SpotlightTour(props: SpotlightTourProps) {
  const { steps, skipLabel, backLabel, closeLabel, nextLabel, stepXofYLabel, ...otherProps } =
    props;

  const intl = useIntl();

  return (
    <ReactJoyride
      disableOverlay
      floaterProps={{
        styles: {
          floater: {
            zIndex: GLOBAL_POPUP_Z_INDEX,
          },
        },
        hideArrow: true,
        offset: 0,
      }}
      locale={{
        skip: skipLabel ?? intl.formatMessage({ id: 'skip' }),
        back: backLabel ?? intl.formatMessage({ id: 'go_back' }),
        close: closeLabel ?? intl.formatMessage({ id: 'close' }),
        next: nextLabel ?? intl.formatMessage({ id: 'next' }),
      }}
      scrollDuration={0}
      scrollOffset={250}
      steps={steps.map((s) => ({
        ...s,
        disableScrolling: true,
        disableBeacon: true,
        floaterProps: {
          disableAnimation: true,
          offset: 0,
        },
      }))}
      tooltipComponent={(
        tooltipProps: React.PropsWithChildren<TooltipRenderProps & { step: SpotlightTourStep }>,
      ) => <TooltipComponent stepXofYLabel={stepXofYLabel} {...tooltipProps} />}
      {...otherProps}
    />
  );
}

const StyledPopupWrapper = styled(PopupWrapper)<{ placement: Placement }>`
  background-color: ${themeColor('spotlightBackgroundColor')};
  ${tw`sw-overflow-visible`};
  ${tw`sw-rounded-1`};
  ${({ placement }) => getStyledPopupWrapperMargin(placement)};
`;

function getStyledPopupWrapperMargin(placement: Placement) {
  switch (placement) {
    case 'left':
      return `margin-right: 2rem`;

    case 'right':
      return `margin-left: 2rem`;

    case 'bottom':
      return `margin-top: 2rem`;

    case 'top':
      return `margin-bottom: 2rem`;

    default:
      return null;
  }
}

const SpotlightArrowWrapper = styled.div<{ left: number; top: number }>`
  ${tw`sw-absolute`}
  ${tw`sw-z-popup`}

  width: ${PULSE_SIZE}px;
  height: ${PULSE_SIZE}px;
  left: ${({ left }) => left}px;
  top: ${({ top }) => top}px;
`;

const pulseKeyFrame = keyframes`
  0% { transform: scale(.50) }
  80%, 100% { opacity: 0 }
`;

const SpotlightArrow = styled.div<{ rotate: string }>`
  ${tw`sw-w-full sw-h-full`}
  ${tw`sw-rounded-pill`}
  background: ${themeColor('spotlightPulseBackground')};
  opacity: 1;
  transform: rotate(${({ rotate }) => rotate});

  &::after {
    ${tw`sw-block sw-absolute`}
    ${tw`sw-rounded-pill`}

    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background-color: ${themeColor('spotlightPulseBackground')};
    animation: ${pulseKeyFrame} 1.25s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
    content: '';
  }

  &::before {
    ${tw`sw-block sw-absolute`}

    width: ${ARROW_LENGTH}px;
    height: 0.125rem;
    background-color: ${themeColor('spotlightPulseBackground')};
    left: 100%;
    top: calc(50% - calc(0.125rem / 2));
    transition:
      margin 0.3s,
      left 0.3s;
    content: '';
  }
`;