import { getCurrentConference } from '../base/conference';
import { openDialog } from '../base/dialog/actions';
import { getLocalParticipant } from '../base/participants';
import { SharedVideoDialog } from '../shared-video/components';

import { RESET_SHARED_VIDEO_STATUS, SET_SHARED_VIDEO_STATUS } from './actionTypes';

/**
 * Resets the status of the shared video.
 *
 * @returns {{
 *     type: SET_SHARED_VIDEO_STATUS,
 * }}
 */
export function resetSharedVideoStatus() {
    return {
        type: RESET_SHARED_VIDEO_STATUS
    };
}

/**
 * Updates the current known status of the shared video.
 *
 * @param {{
 *     muted: boolean,
 *     ownerId: string,
 *     status: string,
 *     time: number,
 *     videoUrl: string
 * }} options - The options.
 *
 * @returns {{
 *     type: SET_SHARED_VIDEO_STATUS,
 *     muted: boolean,
 *     ownerId: string,
 *     status: string,
 *     time: number,
 *     videoUrl: string,
 * }}
 */
export function setSharedVideoStatus({ videoUrl, status, time, ownerId, muted }) {
    return {
        type: SET_SHARED_VIDEO_STATUS,
        ownerId,
        status,
        time,
        videoUrl,
        muted
    };
}

/**
 * Displays the dialog for entering the video link.
 *
 * @param {Function} onPostSubmit - The function to be invoked when a valid link is entered.
 * @returns {Function}
 */
export function showSharedVideoDialog(onPostSubmit) {
    return openDialog(SharedVideoDialog, { onPostSubmit });
}

/**
 *
 * Stops playing a shared video.
 *
 * @returns {Function}
 */
export function stopSharedVideo() {
    return (dispatch, getState) => {
        const state = getState();
        const { ownerId } = state['features/shared-video'];
        const localParticipant = getLocalParticipant(state);

        if (ownerId === localParticipant.id) {
            dispatch(resetSharedVideoStatus());
        }
    };
}

/**
 *
 * Plays a shared video.
 *
 * @param {string} videoUrl - The video url to be played.
 *
 * @returns {Function}
 */
export function playSharedVideo(videoUrl) {
    return (dispatch, getState) => {
        const conference = getCurrentConference(getState());

        if (conference) {
            const localParticipant = getLocalParticipant(getState());

            dispatch(setSharedVideoStatus({
                videoUrl,
                status: 'start',
                time: 0,
                ownerId: localParticipant.id
            }));
        }
    };
}

/**
 *
 * Stops playing a shared video.
 *
 * @returns {Function}
 */
export function toggleSharedVideo() {
    return (dispatch, getState) => {
        const state = getState();
        const { status } = state['features/shared-video'];

        if ([ 'playing', 'start', 'pause' ].includes(status)) {
            dispatch(stopSharedVideo());
        } else {
            dispatch(showSharedVideoDialog(id => dispatch(playSharedVideo(id))));
        }
    };
}