import PropTypes from "prop-types";

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

import classNames from "classnames";
import { Link } from "react-router-dom";

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

import { HotKeys } from "react-hotkeys";

import AttachmentList from "mastodon/components/attachment_list";
import AvatarComposite from "mastodon/components/avatar_composite";
import { IconButton } from "mastodon/components/icon_button";
import { RelativeTimestamp } from "mastodon/components/relative_timestamp";
import StatusContent from "mastodon/components/status_content";
import DropdownMenuContainer from "mastodon/containers/dropdown_menu_container";
import { autoPlayGif } from "mastodon/initial_state";

const messages = defineMessages({
  more: { id: "status.more", defaultMessage: "More" },
  open: { id: "conversation.open", defaultMessage: "View conversation" },
  reply: { id: "status.reply", defaultMessage: "Reply" },
  markAsRead: { id: "conversation.mark_as_read", defaultMessage: "Mark as read" },
  delete: { id: "conversation.delete", defaultMessage: "Delete conversation" },
  muteConversation: { id: "status.mute_conversation", defaultMessage: "Mute conversation" },
  unmuteConversation: { id: "status.unmute_conversation", defaultMessage: "Unmute conversation" },
});

class Conversation extends ImmutablePureComponent {

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

  static propTypes = {
    conversationId: PropTypes.string.isRequired,
    accounts: ImmutablePropTypes.list.isRequired,
    lastStatus: ImmutablePropTypes.map,
    unread:PropTypes.bool.isRequired,
    scrollKey: PropTypes.string,
    onMoveUp: PropTypes.func,
    onMoveDown: PropTypes.func,
    markRead: PropTypes.func.isRequired,
    delete: PropTypes.func.isRequired,
    intl: PropTypes.object.isRequired,
  };

  handleMouseEnter = ({ currentTarget }) => {
    if (autoPlayGif) {
      return;
    }

    const emojis = currentTarget.querySelectorAll(".custom-emoji");

    for (var i = 0; i < emojis.length; i++) {
      let emoji = emojis[i];
      emoji.src = emoji.getAttribute("data-original");
    }
  };

  handleMouseLeave = ({ currentTarget }) => {
    if (autoPlayGif) {
      return;
    }

    const emojis = currentTarget.querySelectorAll(".custom-emoji");

    for (var i = 0; i < emojis.length; i++) {
      let emoji = emojis[i];
      emoji.src = emoji.getAttribute("data-static");
    }
  };

  handleClick = () => {
    if (!this.context.router) {
      return;
    }

    const { lastStatus, unread, markRead } = this.props;

    if (unread) {
      markRead();
    }

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

  handleMarkAsRead = () => {
    this.props.markRead();
  };

  handleReply = () => {
    this.props.reply(this.props.lastStatus, this.context.router.history);
  };

  handleDelete = () => {
    this.props.delete();
  };

  handleHotkeyMoveUp = () => {
    this.props.onMoveUp(this.props.conversationId);
  };

  handleHotkeyMoveDown = () => {
    this.props.onMoveDown(this.props.conversationId);
  };

  handleConversationMute = () => {
    this.props.onMute(this.props.lastStatus);
  };

  handleShowMore = () => {
    this.props.onToggleHidden(this.props.lastStatus);
  };

  render () {
    const { accounts, lastStatus, unread, scrollKey, intl } = this.props;

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

    const menu = [
      { text: intl.formatMessage(messages.open), action: this.handleClick },
      null,
    ];

    menu.push({ text: intl.formatMessage(lastStatus.get("muted") ? messages.unmuteConversation : messages.muteConversation), action: this.handleConversationMute });

    if (unread) {
      menu.push({ text: intl.formatMessage(messages.markAsRead), action: this.handleMarkAsRead });
      menu.push(null);
    }

    menu.push({ text: intl.formatMessage(messages.delete), action: this.handleDelete });

    const names = accounts.map(a => <Link to={`/@${a.get("acct")}`} key={a.get("id")} title={a.get("acct")}><bdi><strong className='display-name__html' dangerouslySetInnerHTML={{ __html: a.get("display_name_html") }} /></bdi></Link>).reduce((prev, cur) => [prev, ", ", cur]);

    const handlers = {
      reply: this.handleReply,
      open: this.handleClick,
      moveUp: this.handleHotkeyMoveUp,
      moveDown: this.handleHotkeyMoveDown,
      toggleHidden: this.handleShowMore,
    };

    return (
      <HotKeys handlers={handlers}>
        <div className={classNames("conversation focusable muted", { "conversation--unread": unread })} tabIndex={0}>
          <div className='conversation__avatar' onClick={this.handleClick} role='presentation'>
            <AvatarComposite accounts={accounts} size={48} />
          </div>

          <div className='conversation__content'>
            <div className='conversation__content__info'>
              <div className='conversation__content__relative-time'>
                {unread && <span className='conversation__unread' />} <RelativeTimestamp timestamp={lastStatus.get("created_at")} />
              </div>

              <div className='conversation__content__names' onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
                <FormattedMessage id='conversation.with' defaultMessage='With {names}' values={{ names: <span>{names}</span> }} />
              </div>
            </div>

            <StatusContent
              status={lastStatus}
              onClick={this.handleClick}
              expanded={!lastStatus.get("hidden")}
              onExpandedToggle={this.handleShowMore}
              collapsible
            />

            {lastStatus.get("media_attachments").size > 0 && (
              <AttachmentList
                compact
                media={lastStatus.get("media_attachments")}
              />
            )}

            <div className='status__action-bar'>
              <IconButton className='status__action-bar-button' title={intl.formatMessage(messages.reply)} icon='reply' onClick={this.handleReply} />

              <div className='status__action-bar-dropdown'>
                <DropdownMenuContainer
                  scrollKey={scrollKey}
                  status={lastStatus}
                  items={menu}
                  icon='ellipsis-h'
                  size={18}
                  direction='right'
                  title={intl.formatMessage(messages.more)}
                />
              </div>
            </div>
          </div>
        </div>
      </HotKeys>
    );
  }

}

export default injectIntl(Conversation);