import React from 'react';
import { findDOMNode } from 'react-dom';
import cn from 'classnames';
import { WebStackEventPanel } from 'Shared/DevTools/StackEventPanel/StackEventPanel';
import { EscapeButton } from 'UI';
import {
  NONE,
  CONSOLE,
  NETWORK,
  STACKEVENTS,
  STORAGE,
  PROFILER,
  PERFORMANCE,
  GRAPHQL,
  EXCEPTIONS,
  INSPECTOR,
  OVERVIEW,
  BACKENDLOGS,
} from 'App/mstore/uiPlayerStore';
import { WebNetworkPanel } from 'Shared/DevTools/NetworkPanel';
import Storage from 'Components/Session_/Storage';
import { ConnectedPerformance } from 'Components/Session_/Performance';
import GraphQL from 'Components/Session_/GraphQL';
import { Exceptions } from 'Components/Session_/Exceptions/Exceptions';
import Controls from 'Components/Session_/Player/Controls';
import Overlay from 'Components/Session_/Player/Overlay';
import stl from 'Components/Session_/Player/player.module.css';
import { OverviewPanel } from 'Components/Session_/OverviewPanel';
import ConsolePanel from 'Shared/DevTools/ConsolePanel';
import ProfilerPanel from 'Shared/DevTools/ProfilerPanel';
import { PlayerContext } from 'App/components/Session/playerContext';
import { debounce } from 'App/utils';
import { observer } from 'mobx-react-lite';
import { useStore } from 'App/mstore';
import BackendLogsPanel from '../SharedComponents/BackendLogs/BackendLogsPanel';

interface IProps {
  fullView: boolean;
  isMultiview?: boolean;
  activeTab: string;
  setActiveTab: (tab: string) => void;
}

export const heightKey = 'playerPanelHeight';
export const debounceUpdate = debounce((height: number) => {
  localStorage.setItem(heightKey, height.toString());
}, 500);
export const getDefaultPanelHeight = () => {
  const storageHeight = localStorage.getItem(heightKey);
  if (storageHeight) {
    const height = parseInt(storageHeight, 10);
    return height > window.innerHeight / 2 ? window.innerHeight / 2 : height;
  }
  return 300;
};

function Player(props: IProps) {
  const { uiPlayerStore, sessionStore } = useStore();
  const { nextId } = sessionStore;
  const { sessionId } = sessionStore.current;
  const { updateLastPlayedSession } = sessionStore;
  const { fullscreenOff } = uiPlayerStore;
  const { bottomBlock } = uiPlayerStore;
  const { fullscreen } = uiPlayerStore;
  const defaultHeight = getDefaultPanelHeight();
  const [panelHeight, setPanelHeight] = React.useState(defaultHeight);
  const { activeTab, fullView } = props;
  const playerContext = React.useContext(PlayerContext);
  const isReady = playerContext.store.get().ready;
  const screenWrapper = React.useRef<HTMLDivElement>(null);
  const bottomBlockIsActive = !fullscreen && bottomBlock !== NONE;
  const isAttached = React.useRef(false);

  React.useEffect(() => {
    updateLastPlayedSession(sessionId);
    if (isReady && !isAttached.current) {
      const parentElement = findDOMNode(
        screenWrapper.current,
      ) as HTMLDivElement | null; // TODO: good architecture
      if (parentElement) {
        playerContext.player.attach(parentElement);
        isAttached.current = true;
      }
    }
  }, [isReady]);

  React.useEffect(() => {
    playerContext.player.scale();
  }, [bottomBlock, fullscreen, playerContext.player, activeTab, fullView]);

  if (!playerContext.player) return null;

  const activeTabWidth = activeTab === 'EXPORT' ? 360 : 270
  const maxWidth = activeTab ? `calc(100vw - ${activeTabWidth}px)` : '100vw';

  const handleResize = (e: React.MouseEvent<HTMLDivElement>) => {
    e.preventDefault();
    const startY = e.clientY;
    const startHeight = panelHeight;

    const handleMouseUp = () => {
      document.removeEventListener('mousemove', handleMouseMove);
      document.removeEventListener('mouseup', handleMouseUp);
    };

    const handleMouseMove = (e: MouseEvent) => {
      const deltaY = e.clientY - startY;
      const diff = startHeight - deltaY;
      const max = diff > window.innerHeight / 2 ? window.innerHeight / 2 : diff;
      const newHeight = Math.max(50, max);
      setPanelHeight(newHeight);
      playerContext.player.scale();
      debounceUpdate(newHeight);
    };

    document.addEventListener('mousemove', handleMouseMove);
    document.addEventListener('mouseup', handleMouseUp);
  };
  const isInspMode = playerContext.store.get().inspectorMode;

  return (
    <div
      className={cn(
        stl.playerBody,
        'flex-1 flex flex-col relative',
        fullscreen && 'pb-2',
      )}
      data-bottom-block={bottomBlockIsActive}
    >
      {fullscreen && <EscapeButton onClose={fullscreenOff} />}
      <div
        className={cn('relative flex-1', 'overflow-hidden')}
        id="player-container"
      >
        {activeTab === 'HIGHLIGHT' ? (
          <div
            style={{ background: 'rgba(0,0,0, 0.3)' }}
            className="w-full h-full z-50 absolute top-0 left-0"
          />
        ) : undefined}
        <Overlay nextId={nextId} />
        <div
          className={cn(
            stl.screenWrapper,
            isInspMode ? stl.solidBg : stl.checkers,
          )}
          ref={screenWrapper}
        />
      </div>
      {!fullscreen && !!bottomBlock && (
        <div
          style={{
            height: panelHeight,
            maxWidth,
            width: '100%',
            position: 'relative',
            overflow: 'hidden',
          }}
        >
          <div
            onMouseDown={handleResize}
            className="w-full h-2 cursor-ns-resize absolute top-0 left-0 z-20"
          />
          {bottomBlock === OVERVIEW && <OverviewPanel />}
          {bottomBlock === CONSOLE && <ConsolePanel />}
          {bottomBlock === NETWORK && (
            <WebNetworkPanel panelHeight={panelHeight} />
          )}
          {bottomBlock === STACKEVENTS && <WebStackEventPanel />}
          {bottomBlock === STORAGE && <Storage />}
          {bottomBlock === PROFILER && (
            <ProfilerPanel panelHeight={panelHeight} />
          )}
          {bottomBlock === PERFORMANCE && <ConnectedPerformance />}
          {bottomBlock === GRAPHQL && <GraphQL panelHeight={panelHeight} />}
          {bottomBlock === EXCEPTIONS && <Exceptions />}
          {bottomBlock === BACKENDLOGS && <BackendLogsPanel />}
        </div>
      )}
      {!fullView ? (
        <Controls
          setActiveTab={(tab: string) =>
            activeTab === tab ? props.setActiveTab('') : props.setActiveTab(tab)
          }
          activeTab={activeTab}
          speedDown={playerContext.player.speedDown}
          speedUp={playerContext.player.speedUp}
          jump={playerContext.player.jump}
        />
      ) : null}
    </div>
  );
}

export default observer(Player);
