import PropTypes from "prop-types";

import { injectIntl, defineMessages, FormattedMessage } from "react-intl";

import classNames from "classnames";

import ImmutablePropTypes from "react-immutable-proptypes";
import ImmutablePureComponent from "react-immutable-pure-component";

import { HotKeys } from "react-hotkeys";

import { Icon }  from "mastodon/components/icon";
import PictureInPicturePlaceholder from "mastodon/components/picture_in_picture_placeholder";

import Card from "../features/status/components/card";
// We use the component (and not the container) since we do not want
// to use the progress bar to show download progress
import Bundle from "../features/ui/components/bundle";
import { MediaGallery, Video, Audio } from "../features/ui/util/async-components";
import { displayMedia } from "../initial_state";

import { Avatar } from "./avatar";
import { AvatarOverlay } from "./avatar_overlay";
import { DisplayName } from "./display_name";
import { getHashtagBarForStatus } from "./hashtag_bar";
import { RelativeTimestamp } from "./relative_timestamp";
import StatusActionBar from "./status_action_bar";
import StatusContent from "./status_content";

const domParser = new DOMParser();

export const textForScreenReader = (intl, status, rebloggedByText = false) => {
  const displayName = status.getIn(["account", "display_name"]);

  const spoilerText = status.getIn(["translation", "spoiler_text"]) || status.get("spoiler_text");
  const contentHtml = status.getIn(["translation", "contentHtml"]) || status.get("contentHtml");
  const contentText = domParser.parseFromString(contentHtml, "text/html").documentElement.textContent;

  const values = [
    displayName.length === 0 ? status.getIn(["account", "acct"]).split("@")[0] : displayName,
    spoilerText && status.get("hidden") ? spoilerText : contentText,
    intl.formatDate(status.get("created_at"), { hour: "2-digit", minute: "2-digit", month: "short", day: "numeric" }),
    status.getIn(["account", "acct"]),
  ];

  if (rebloggedByText) {
    values.push(rebloggedByText);
  }

  return values.join(", ");
};

export const defaultMediaVisibility = (status) => {
  if (!status) {
    return undefined;
  }

  if (status.get("reblog", null) !== null && typeof status.get("reblog") === "object") {
    status = status.get("reblog");
  }

  return (displayMedia !== "hide_all" && !status.get("sensitive") || displayMedia === "show_all");
};

const messages = defineMessages({
  public_short: { id: "privacy.public.short", defaultMessage: "Public" },
  unlisted_short: { id: "privacy.unlisted.short", defaultMessage: "Unlisted" },
  private_short: { id: "privacy.private.short", defaultMessage: "Followers only" },
  direct_short: { id: "privacy.direct.short", defaultMessage: "Mentioned people only" },
  edited: { id: "status.edited", defaultMessage: "Edited {date}" },
});

class Status extends ImmutablePureComponent {

  static contextTypes = {
    router: PropTypes.object,
  };

  static propTypes = {
    status: ImmutablePropTypes.map,
    account: ImmutablePropTypes.map,
    previousId: PropTypes.string,
    nextInReplyToId: PropTypes.string,
    rootId: PropTypes.string,
    onClick: PropTypes.func,
    onReply: PropTypes.func,
    onFavourite: PropTypes.func,
    onReblog: PropTypes.func,
    onDelete: PropTypes.func,
    onDirect: PropTypes.func,
    onMention: PropTypes.func,
    onPin: PropTypes.func,
    onOpenMedia: PropTypes.func,
    onOpenVideo: PropTypes.func,
    onBlock: PropTypes.func,
    onAddFilter: PropTypes.func,
    onEmbed: PropTypes.func,
    onHeightChange: PropTypes.func,
    onToggleHidden: PropTypes.func,
    onToggleCollapsed: PropTypes.func,
    onTranslate: PropTypes.func,
    onInteractionModal: PropTypes.func,
    muted: PropTypes.bool,
    hidden: PropTypes.bool,
    unread: PropTypes.bool,
    onMoveUp: PropTypes.func,
    onMoveDown: PropTypes.func,
    showThread: PropTypes.bool,
    getScrollPosition: PropTypes.func,
    updateScrollBottom: PropTypes.func,
    cacheMediaWidth: PropTypes.func,
    cachedMediaWidth: PropTypes.number,
    scrollKey: PropTypes.string,
    deployPictureInPicture: PropTypes.func,
    pictureInPicture: ImmutablePropTypes.contains({
      inUse: PropTypes.bool,
      available: PropTypes.bool,
    }),
  };

  // Avoid checking props that are functions (and whose equality will always
  // evaluate to false. See react-immutable-pure-component for usage.
  updateOnProps = [
    "status",
    "account",
    "muted",
    "hidden",
    "unread",
    "pictureInPicture",
  ];

  state = {
    showMedia: defaultMediaVisibility(this.props.status),
    statusId: undefined,
    forceFilter: undefined,
  };

  static getDerivedStateFromProps(nextProps, prevState) {
    if (nextProps.status && nextProps.status.get("id") !== prevState.statusId) {
      return {
        showMedia: defaultMediaVisibility(nextProps.status),
        statusId: nextProps.status.get("id"),
      };
    } else {
      return null;
    }
  }

  handleToggleMediaVisibility = () => {
    this.setState({ showMedia: !this.state.showMedia });
  };

  handleClick = e => {
    if (e && (e.button !== 0 || e.ctrlKey || e.metaKey)) {
      return;
    }

    if (e) {
      e.preventDefault();
    }

    this.handleHotkeyOpen();
  };

  handlePrependAccountClick = e => {
    this.handleAccountClick(e, false);
  };

  handleAccountClick = (e, proper = true) => {
    if (e && (e.button !== 0 || e.ctrlKey || e.metaKey))  {
      return;
    }

    if (e) {
      e.preventDefault();
      e.stopPropagation();
    }

    this._openProfile(proper);
  };

  handleExpandedToggle = () => {
    this.props.onToggleHidden(this._properStatus());
  };

  handleCollapsedToggle = isCollapsed => {
    this.props.onToggleCollapsed(this._properStatus(), isCollapsed);
  };

  handleTranslate = () => {
    this.props.onTranslate(this._properStatus());
  };

  getAttachmentAspectRatio () {
    const attachments = this._properStatus().get("media_attachments");

    if (attachments.getIn([0, "type"]) === "video") {
      return `${attachments.getIn([0, "meta", "original", "width"])} / ${attachments.getIn([0, "meta", "original", "height"])}`;
    } else if (attachments.getIn([0, "type"]) === "audio") {
      return "16 / 9";
    } else {
      return (attachments.size === 1 && attachments.getIn([0, "meta", "small", "aspect"])) ? attachments.getIn([0, "meta", "small", "aspect"]) : "3 / 2";
    }
  }

  renderLoadingMediaGallery = () => {
    return (
      <div className='media-gallery' style={{ aspectRatio: this.getAttachmentAspectRatio() }} />
    );
  };

  renderLoadingVideoPlayer = () => {
    return (
      <div className='video-player' style={{ aspectRatio: this.getAttachmentAspectRatio() }} />
    );
  };

  renderLoadingAudioPlayer = () => {
    return (
      <div className='audio-player' style={{ aspectRatio: this.getAttachmentAspectRatio() }} />
    );
  };

  handleOpenVideo = (options) => {
    const status = this._properStatus();
    const lang = status.getIn(["translation", "language"]) || status.get("language");
    this.props.onOpenVideo(status.get("id"), status.getIn(["media_attachments", 0]), lang, options);
  };

  handleOpenMedia = (media, index) => {
    const status = this._properStatus();
    const lang = status.getIn(["translation", "language"]) || status.get("language");
    this.props.onOpenMedia(status.get("id"), media, index, lang);
  };

  handleHotkeyOpenMedia = e => {
    const { onOpenMedia, onOpenVideo } = this.props;
    const status = this._properStatus();

    e.preventDefault();

    if (status.get("media_attachments").size > 0) {
      const lang = status.getIn(["translation", "language"]) || status.get("language");
      if (status.getIn(["media_attachments", 0, "type"]) === "video") {
        onOpenVideo(status.get("id"), status.getIn(["media_attachments", 0]), lang, { startTime: 0 });
      } else {
        onOpenMedia(status.get("id"), status.get("media_attachments"), 0, lang);
      }
    }
  };

  handleDeployPictureInPicture = (type, mediaProps) => {
    const { deployPictureInPicture } = this.props;
    const status = this._properStatus();

    deployPictureInPicture(status, type, mediaProps);
  };

  handleHotkeyReply = e => {
    e.preventDefault();
    this.props.onReply(this._properStatus(), this.context.router.history);
  };

  handleHotkeyFavourite = () => {
    this.props.onFavourite(this._properStatus());
  };

  handleHotkeyBoost = e => {
    this.props.onReblog(this._properStatus(), e);
  };

  handleHotkeyMention = e => {
    e.preventDefault();
    this.props.onMention(this._properStatus().get("account"), this.context.router.history);
  };

  handleHotkeyOpen = () => {
    if (this.props.onClick) {
      this.props.onClick();
      return;
    }

    const { router } = this.context;
    const status = this._properStatus();

    if (!router) {
      return;
    }

    router.history.push(`/@${status.getIn(["account", "acct"])}/${status.get("id")}`);
  };

  handleHotkeyOpenProfile = () => {
    this._openProfile();
  };

  _openProfile = (proper = true) => {
    const { router } = this.context;
    const status = proper ? this._properStatus() : this.props.status;

    if (!router) {
      return;
    }

    router.history.push(`/@${status.getIn(["account", "acct"])}`);
  };

  handleHotkeyMoveUp = e => {
    this.props.onMoveUp(this.props.status.get("id"), e.target.getAttribute("data-featured"));
  };

  handleHotkeyMoveDown = e => {
    this.props.onMoveDown(this.props.status.get("id"), e.target.getAttribute("data-featured"));
  };

  handleHotkeyToggleHidden = () => {
    this.props.onToggleHidden(this._properStatus());
  };

  handleHotkeyToggleSensitive = () => {
    this.handleToggleMediaVisibility();
  };

  handleUnfilterClick = e => {
    this.setState({ forceFilter: false });
    e.preventDefault();
  };

  handleFilterClick = () => {
    this.setState({ forceFilter: true });
  };

  _properStatus () {
    const { status } = this.props;

    if (status.get("reblog", null) !== null && typeof status.get("reblog") === "object") {
      return status.get("reblog");
    } else {
      return status;
    }
  }

  handleRef = c => {
    this.node = c;
  };

  render () {
    const { intl, hidden, featured, unread, showThread, scrollKey, pictureInPicture, previousId, nextInReplyToId, rootId } = this.props;

    let { status, account, ...other } = this.props;

    if (status === null) {
      return null;
    }

    const handlers = this.props.muted ? {} : {
      reply: this.handleHotkeyReply,
      favourite: this.handleHotkeyFavourite,
      boost: this.handleHotkeyBoost,
      mention: this.handleHotkeyMention,
      open: this.handleHotkeyOpen,
      openProfile: this.handleHotkeyOpenProfile,
      moveUp: this.handleHotkeyMoveUp,
      moveDown: this.handleHotkeyMoveDown,
      toggleHidden: this.handleHotkeyToggleHidden,
      toggleSensitive: this.handleHotkeyToggleSensitive,
      openMedia: this.handleHotkeyOpenMedia,
    };

    let media, statusAvatar, prepend, rebloggedByText;

    if (hidden) {
      return (
        <HotKeys handlers={handlers}>
          <div ref={this.handleRef} className={classNames("status__wrapper", { focusable: !this.props.muted })} tabIndex={0}>
            <span>{status.getIn(["account", "display_name"]) || status.getIn(["account", "username"])}</span>
            <span>{status.get("content")}</span>
          </div>
        </HotKeys>
      );
    }

    const connectUp = previousId && previousId === status.get("in_reply_to_id");
    const connectToRoot = rootId && rootId === status.get("in_reply_to_id");
    const connectReply = nextInReplyToId && nextInReplyToId === status.get("id");
    const matchedFilters = status.get("matched_filters");

    if (this.state.forceFilter === undefined ? matchedFilters : this.state.forceFilter) {
      const minHandlers = this.props.muted ? {} : {
        moveUp: this.handleHotkeyMoveUp,
        moveDown: this.handleHotkeyMoveDown,
      };

      return (
        <HotKeys handlers={minHandlers}>
          <div className='status__wrapper status__wrapper--filtered focusable' tabIndex={0} ref={this.handleRef}>
            <FormattedMessage id='status.filtered' defaultMessage='Filtered' />: {matchedFilters.join(", ")}.
            {" "}
            <button className='status__wrapper--filtered__button' onClick={this.handleUnfilterClick}>
              <FormattedMessage id='status.show_filter_reason' defaultMessage='Show anyway' />
            </button>
          </div>
        </HotKeys>
      );
    }

    if (featured) {
      prepend = (
        <div className='status__prepend'>
          <div className='status__prepend-icon-wrapper'><Icon id='thumb-tack' className='status__prepend-icon' fixedWidth /></div>
          <FormattedMessage id='status.pinned' defaultMessage='Pinned post' />
        </div>
      );
    } else if (status.get("reblog", null) !== null && typeof status.get("reblog") === "object") {
      const display_name_html = { __html: status.getIn(["account", "display_name_html"]) };

      prepend = (
        <div className='status__prepend'>
          <div className='status__prepend-icon-wrapper'><Icon id='retweet' className='status__prepend-icon' fixedWidth /></div>
          <FormattedMessage id='status.reblogged_by' defaultMessage='{name} boosted' values={{ name: <a onClick={this.handlePrependAccountClick} data-id={status.getIn(["account", "id"])} href={`/@${status.getIn(["account", "acct"])}`} className='status__display-name muted'><bdi><strong dangerouslySetInnerHTML={display_name_html} /></bdi></a> }} />
        </div>
      );

      rebloggedByText = intl.formatMessage({ id: "status.reblogged_by", defaultMessage: "{name} boosted" }, { name: status.getIn(["account", "acct"]) });

      account = status.get("account");
      status  = status.get("reblog");
    } else if (status.get("visibility") === "direct") {
      prepend = (
        <div className='status__prepend'>
          <div className='status__prepend-icon-wrapper'><Icon id='at' className='status__prepend-icon' fixedWidth /></div>
          <FormattedMessage id='status.direct_indicator' defaultMessage='Private mention' />
        </div>
      );
    } else if (showThread && status.get("in_reply_to_id") && status.get("in_reply_to_account_id") === status.getIn(["account", "id"])) {
      const display_name_html = { __html: status.getIn(["account", "display_name_html"]) };

      prepend = (
        <div className='status__prepend'>
          <div className='status__prepend-icon-wrapper'><Icon id='reply' className='status__prepend-icon' fixedWidth /></div>
          <FormattedMessage id='status.replied_to' defaultMessage='Replied to {name}' values={{ name: <a onClick={this.handlePrependAccountClick} data-id={status.getIn(["account", "id"])} href={`/@${status.getIn(["account", "acct"])}`} className='status__display-name muted'><bdi><strong dangerouslySetInnerHTML={display_name_html} /></bdi></a> }} />
        </div>
      );
    }

    if (pictureInPicture.get("inUse")) {
      media = <PictureInPicturePlaceholder aspectRatio={this.getAttachmentAspectRatio()} />;
    } else if (status.get("media_attachments").size > 0) {
      const language = status.getIn(["translation", "language"]) || status.get("language");

      if (status.getIn(["media_attachments", 0, "type"]) === "audio") {
        const attachment = status.getIn(["media_attachments", 0]);
        const description = attachment.getIn(["translation", "description"]) || attachment.get("description");

        media = (
          <Bundle fetchComponent={Audio} loading={this.renderLoadingAudioPlayer} >
            {Component => (
              <Component
                src={attachment.get("url")}
                alt={description}
                lang={language}
                poster={attachment.get("preview_url") || status.getIn(["account", "avatar_static"])}
                backgroundColor={attachment.getIn(["meta", "colors", "background"])}
                foregroundColor={attachment.getIn(["meta", "colors", "foreground"])}
                accentColor={attachment.getIn(["meta", "colors", "accent"])}
                duration={attachment.getIn(["meta", "original", "duration"], 0)}
                width={this.props.cachedMediaWidth}
                height={110}
                cacheWidth={this.props.cacheMediaWidth}
                deployPictureInPicture={pictureInPicture.get("available") ? this.handleDeployPictureInPicture : undefined}
                sensitive={status.get("sensitive")}
                blurhash={attachment.get("blurhash")}
                visible={this.state.showMedia}
                onToggleVisibility={this.handleToggleMediaVisibility}
              />
            )}
          </Bundle>
        );
      } else if (status.getIn(["media_attachments", 0, "type"]) === "video") {
        const attachment = status.getIn(["media_attachments", 0]);
        const description = attachment.getIn(["translation", "description"]) || attachment.get("description");

        media = (
          <Bundle fetchComponent={Video} loading={this.renderLoadingVideoPlayer} >
            {Component => (
              <Component
                preview={attachment.get("preview_url")}
                frameRate={attachment.getIn(["meta", "original", "frame_rate"])}
                aspectRatio={`${attachment.getIn(["meta", "original", "width"])} / ${attachment.getIn(["meta", "original", "height"])}`}
                blurhash={attachment.get("blurhash")}
                src={attachment.get("url")}
                alt={description}
                lang={language}
                sensitive={status.get("sensitive")}
                onOpenVideo={this.handleOpenVideo}
                deployPictureInPicture={pictureInPicture.get("available") ? this.handleDeployPictureInPicture : undefined}
                visible={this.state.showMedia}
                onToggleVisibility={this.handleToggleMediaVisibility}
              />
            )}
          </Bundle>
        );
      } else {
        media = (
          <Bundle fetchComponent={MediaGallery} loading={this.renderLoadingMediaGallery}>
            {Component => (
              <Component
                media={status.get("media_attachments")}
                lang={language}
                sensitive={status.get("sensitive")}
                height={110}
                onOpenMedia={this.handleOpenMedia}
                cacheWidth={this.props.cacheMediaWidth}
                defaultWidth={this.props.cachedMediaWidth}
                visible={this.state.showMedia}
                onToggleVisibility={this.handleToggleMediaVisibility}
              />
            )}
          </Bundle>
        );
      }
    } else if (status.get("spoiler_text").length === 0 && status.get("card")) {
      media = (
        <Card
          onOpenMedia={this.handleOpenMedia}
          card={status.get("card")}
          compact
          sensitive={status.get("sensitive")}
        />
      );
    }

    if (account === undefined || account === null) {
      statusAvatar = <Avatar account={status.get("account")} size={46} />;
    } else {
      statusAvatar = <AvatarOverlay account={status.get("account")} friend={account} />;
    }

    const visibilityIconInfo = {
      "public": { icon: "globe", text: intl.formatMessage(messages.public_short) },
      "unlisted": { icon: "unlock", text: intl.formatMessage(messages.unlisted_short) },
      "private": { icon: "lock", text: intl.formatMessage(messages.private_short) },
      "direct": { icon: "at", text: intl.formatMessage(messages.direct_short) },
    };

    const visibilityIcon = visibilityIconInfo[status.get("visibility")];

    const {statusContentProps, hashtagBar} = getHashtagBarForStatus(status);
    const expanded = !status.get("hidden") || status.get("spoiler_text").length === 0;

    return (
      <HotKeys handlers={handlers}>
        <div className={classNames("status__wrapper", `status__wrapper-${status.get("visibility")}`, { "status__wrapper-reply": !!status.get("in_reply_to_id"), unread, focusable: !this.props.muted })} tabIndex={this.props.muted ? null : 0} data-featured={featured ? "true" : null} aria-label={textForScreenReader(intl, status, rebloggedByText)} ref={this.handleRef} data-nosnippet={status.getIn(["account", "noindex"], true) || undefined}>
          {prepend}

          <div className={classNames("status", `status-${status.get("visibility")}`, { "status-reply": !!status.get("in_reply_to_id"), "status--in-thread": !!rootId, "status--first-in-thread": previousId && (!connectUp || connectToRoot), muted: this.props.muted })} data-id={status.get("id")}>
            {(connectReply || connectUp || connectToRoot) && <div className={classNames("status__line", { "status__line--full": connectReply, "status__line--first": !status.get("in_reply_to_id") && !connectToRoot })} />}

            {/* eslint-disable-next-line jsx-a11y/no-static-element-interactions */}
            <div onClick={this.handleClick} className='status__info'>
              <a href={`/@${status.getIn(["account", "acct"])}/${status.get("id")}`} className='status__relative-time' target='_blank' rel='noopener noreferrer'>
                <span className='status__visibility-icon'><Icon id={visibilityIcon.icon} title={visibilityIcon.text} /></span>
                <RelativeTimestamp timestamp={status.get("created_at")} />{status.get("edited_at") && <abbr title={intl.formatMessage(messages.edited, { date: intl.formatDate(status.get("edited_at"), { hour12: false, year: "numeric", month: "short", day: "2-digit", hour: "2-digit", minute: "2-digit" }) })}> *</abbr>}
              </a>

              <a onClick={this.handleAccountClick} href={`/@${status.getIn(["account", "acct"])}`} title={status.getIn(["account", "acct"])} className='status__display-name' target='_blank' rel='noopener noreferrer'>
                <div className='status__avatar'>
                  {statusAvatar}
                </div>

                <DisplayName account={status.get("account")} />
              </a>
            </div>

            <StatusContent
              status={status}
              onClick={this.handleClick}
              expanded={expanded}
              onExpandedToggle={this.handleExpandedToggle}
              onTranslate={this.handleTranslate}
              collapsible
              onCollapsedToggle={this.handleCollapsedToggle}
              {...statusContentProps}
            />

            {media}

            {expanded && hashtagBar}

            <StatusActionBar scrollKey={scrollKey} status={status} account={account} onFilter={matchedFilters ? this.handleFilterClick : null} {...other} />
          </div>
        </div>
      </HotKeys>
    );
  }

}

export default injectIntl(Status);