import {MediaConfig, RecentItems} from '../Config/MediaConfig';

export class Helpers {
    static getUrlParam(paramName, url = null) {
        if (!url) {
            url = window.location.search;
        }
        let reParam = new RegExp('(?:[\?&]|&)' + paramName + '=([^&]+)', 'i');
        let match = url.match(reParam);
        return (match && match.length > 1) ? match[1] : null;
    }

    static asset(url) {
        if (url.substring(0, 2) === '//' || url.substring(0, 7) === 'http://' || url.substring(0, 8) === 'https://') {
            return url;
        }

        let baseUrl = RV_MEDIA_URL.base_url.substr(-1, 1) !== '/' ? RV_MEDIA_URL.base_url + '/' : RV_MEDIA_URL.base_url;

        if (url.substring(0, 1) === '/') {
            return baseUrl + url.substring(1);
        }

        return baseUrl + url;
    }

    static showAjaxLoading($element = $('.rv-media-main')) {
        $element
            .addClass('on-loading')
            .append($('#rv_media_loading').html());
    }

    static hideAjaxLoading($element = $('.rv-media-main')) {
        $element
            .removeClass('on-loading')
            .find('.loading-wrapper').remove();
    }

    static isOnAjaxLoading($element = $('.rv-media-items')) {
        return $element.hasClass('on-loading');
    }

    static jsonEncode(object) {
        if (typeof object === 'undefined') {
            object = null;
        }
        return JSON.stringify(object);
    };

    static jsonDecode(jsonString, defaultValue) {
        if (!jsonString) {
            return defaultValue;
        }
        if (typeof jsonString === 'string') {
            let result;
            try {
                result = $.parseJSON(jsonString);
            } catch (err) {
                result = defaultValue;
            }
            return result;
        }
        return jsonString;
    };

    static getRequestParams() {
        if (window.rvMedia.options && window.rvMedia.options.open_in === 'modal') {
            return $.extend(true, MediaConfig.request_params, window.rvMedia.options || {});
        }
        return MediaConfig.request_params;
    }

    static setSelectedFile(fileId) {
        if (typeof window.rvMedia.options !== 'undefined') {
            window.rvMedia.options.selected_file_id = fileId;
        } else {
            MediaConfig.request_params.selected_file_id = fileId;
        }
    }

    static getConfigs() {
        return MediaConfig;
    }

    static storeConfig() {
        localStorage.setItem('MediaConfig', Helpers.jsonEncode(MediaConfig));
    }

    static storeRecentItems() {
        localStorage.setItem('RecentItems', Helpers.jsonEncode(RecentItems));
    }

    static addToRecent(id) {
        if (id instanceof Array) {
            _.each(id, (value) => {
                RecentItems.push(value);
            });
        } else {
            RecentItems.push(id);
            this.storeRecentItems();
        }
    }

    static getItems() {
        let items = [];
        $('.js-media-list-title').each((index, el) => {
            let $box = $(el);
            let data = $box.data() || {};
            data.index_key = $box.index();
            items.push(data);
        });
        return items;
    }

    static getSelectedItems() {
        let selected = [];
        $('.js-media-list-title input[type=checkbox]:checked').each((index, el) => {
            let $box = $(el).closest('.js-media-list-title');
            let data = $box.data() || {};
            data.index_key = $box.index();
            selected.push(data);
        });
        return selected;
    }

    static getSelectedFiles() {
        let selected = [];
        $('.js-media-list-title[data-context=file] input[type=checkbox]:checked').each((index, el) => {
            let $box = $(el).closest('.js-media-list-title');
            let data = $box.data() || {};
            data.index_key = $box.index();
            selected.push(data);
        });
        return selected;
    }

    static getSelectedFolder() {
        let selected = [];
        $('.js-media-list-title[data-context=folder] input[type=checkbox]:checked').each((index, el) => {
            let $box = $(el).closest('.js-media-list-title');
            let data = $box.data() || {};
            data.index_key = $box.index();
            selected.push(data);
        });
        return selected;
    }

    static isUseInModal() {
        return Helpers.getUrlParam('media-action') === 'select-files' || (window.rvMedia && window.rvMedia.options && window.rvMedia.options.open_in === 'modal');
    }

    static resetPagination() {
        RV_MEDIA_CONFIG.pagination = {paged: 1, posts_per_page: 40, in_process_get_media: false, has_more: true};
    }
}
