// Piter Gavrinev 20.01.2021 (v3.1)


const _MainPoint = "/Queries/AjaxDataSource/115732";
const _EventSourceURL = "/Queries/AjaxDataSource/94875";
const _NewsSourceURL = "/Queries/AjaxDataSource/94876";
const _DatesSource = "/Queries/AjaxDataSource/104031";



let _PageLoadding = false;
let _PageSize = 5;
let from_date_val = '';
let to_date_val = '';
let last_big = true;


let pageCounter = 0;

let tab_id = 100;
let IsEng = 0;
let News_last_day;
let DatesControl;


$(function () {

    CreateMainPoint();
});


function RestartTab(id) {
    tab_id = id;
    from_date_val = '';
    to_date_val = '';
    LoadTab(from_date_val, to_date_val, true);
    AjustDates();
   

}


function CreateTab(data, sw_tabs, num, RussName, EngName) {

    if (data.some(function (item) {
        return item.Part === num;
    })) {
        const nm = $("<a class=\"tab  " + (tab_id === num ? "_active" : "") + "\" href=\"#\" data-tabs-tab=\"" + num + "\" id=\"tab_" + num+"\" >" + (IsEng ? EngName : RussName) + "</a>");
        nm.click(function () {
            RestartTab(num);
        });
        if (num === 7) sw_tabs.append($("<span class=\"tab-separator\"></span>"));

        sw_tabs.append(nm);
    }

}

function CreateMainPoint() {

    tab_id = 0;
    const lang = $("meta[name='zoom:lang']").attr("content");
    moment.locale(lang);

    IsEng = 0;
    if (lang === 'en') {
        IsEng = 1;
    }


    const rootPoint = $("#mainPoint");

    const rp = $("<div class=\"tabs_filters_wrap tabs_wrap\" data-home-tabs=\"\" />");
    const sw_tabs = $(" <div class=\"tabs news-page_tabs\" />");
    rp.append(sw_tabs);
    rp.append($("<div class=\"tabs_filters_btn\"></div>"));

    rootPoint.append(rp);


    $.ajax({
        url: _MainPoint,
        data: {IsEng: (!!IsEng), Tid: CurrentThemaID, vol: press_vol}
    }).done(function (data) {

        if (data.length === 0) return;

        tab_id = data[0].Part;

        CreateTab(data, sw_tabs, 0, "Новости", "News");
        CreateTab(data, sw_tabs, 4, "Пресс-релизы", "Press releases");
        CreateTab(data, sw_tabs, 2, "Интервью", "Interview");
        CreateTab(data, sw_tabs, 1, "Выступления", "Speeches");
        CreateTab(data, sw_tabs, 7, "Новое на сайте", "What’s new");

        const news_page_row = $("<div class=\"news-page_row\"/>");
        const news_page_content = $("<div class=\"news-page_content _no-border\" />");
        const md_17 = $(" <div class=\"col-md-17\" />");

        md_17.append($("<div class=\"tabs_filters\"><form class=\"filters\"><div id=\"DatesFilterRange\"></div></form></div>"));

        $.each(data, function (index, d) {
            var itm = $("<div data-tabs-content=" + d.Part + " ><div class=\"" + (d.Part === 7 ? "home-previews" : "news-section_content") + "\" id=\"events_tab" + d.Part + "\" /></div>");
            md_17.append(itm);
        });

        news_page_content.append(md_17);
        news_page_row.append(news_page_content);
        rp.append(news_page_row);

        rp.trigger('new-html');
        if (!AutoTabSelect()) {
            LoadTab('', '', false);
            AjustDates();
        }


    });


}


function AutoTabSelect() {

    var tabidSelect;
    $("a.tab").click(function (e) {
        var tabid = $(this).data("tabs-tab");
        location.hash = "tab_" + tabid;
    });

    if (location.hash != "") {
        const tsel_hasch = location.hash.substring(1);
        const _tid = tsel_hasch.indexOf("tab_")
        if (_tid !== -1) {
            tabidSelect = tsel_hasch.substring(_tid + 4);
            var tabObj = $("a[data-tabs-tab='" + tabidSelect + "']");
            if (tabObj.length !== 0) {
                tab_id = tabidSelect;
                tabObj.click();
                return true;

            }
        }
    }


    return false;
}


function AjustDates() {

    $.ajax({
        url: _DatesSource,
        data: {IsEng: (!!IsEng), type: tab_id, Tid: CurrentThemaID, vol: press_vol},
        cache: false
    }).done(function (data) {

        from_date_val = data[0].DTMin;
        to_date_val = data[0].DTMax;

        const pu = $(".page-info_last-update");
        if (pu.length !== 0) {
            pu.text(IsEng ? "Last updated on: " + moment(to_date_val).format("DD/MM/YYYY") : "Последнее обновление страницы: " + moment(to_date_val).format("DD.MM.YYYY"));
        }

        DatesControl = new AIC_TwoDateControlEXT(IsEng);
        const dateRangeObj = $("#DatesFilterRange");
        dateRangeObj.empty();
        DatesControl.AppendTo(dateRangeObj);
        DatesControl.SetDatesRange(from_date_val, to_date_val);


        DatesControl.click(function (fdate, tdate) {

            if (fdate !== null && tdate !== null) {
                from_date_val = fdate;
                to_date_val = tdate;
                LoadTab(from_date_val, to_date_val, true);
            } else {
                from_date_val = '';
                to_date_val = '';
                LoadTab(from_date_val, to_date_val, true);
            }


        });

    });

}


function LoadTab(dateFrom, dateTo, reset) {

    const lang = $("meta[name='zoom:lang']").attr("content");
    moment.locale(lang);

    pageCounter = 0;

    let loadPageText = 'Загрузить еще';
    IsEng = 0;
    if (lang === 'en') {
        loadPageText = 'Load more';
        IsEng = 1;
    }

    const idiv = $("#events_tab" + tab_id);
    const vrap = idiv.parent();
    if (vrap.children(".more-button").length > 0 && reset === false) return;
    idiv.empty();

    if (reset) {
        News_last_day = null;
    }

    if (vrap.children(".more-button").length === 0) {
        const nexButton = $('<button id="_buttonLoadNextEvt" class="more-button _small  _loading" >' + loadPageText + '</button>');
        vrap.append(nexButton);
        nexButton.click(function () {
            if (_PageLoadding) return;
            _PageLoadding = true;
            pageCounter++;
            if (tab_id === 7) {
                NLoadPage(idiv, pageCounter, IsEng, from_date_val, to_date_val);
            } else {
                EPLoadPage(idiv, pageCounter, IsEng, tab_id, from_date_val, to_date_val);
            }
        });
    }

    if (tab_id === 7) {
        NLoadPage(idiv, 0, IsEng, dateFrom, dateTo);
    } else {
        EPLoadPage(idiv, 0, IsEng, tab_id, dateFrom, dateTo);
    }
}


function EPLoadPage(idiv, page, IsEng, tab_id, dateFrom, dateTo) {
    const nexButton = idiv.parent().children(".more-button");
    nexButton.addClass("_loading");

    $.ajax({
        url: _EventSourceURL,
        data: {
            page: page,
            IsEng: (!!IsEng),
            type: tab_id,
            dateFrom: dateFrom,
            dateTo: dateTo,
            Tid: CurrentThemaID,
            vol: press_vol
        },
        cache: false
    }).done(function (data) {

        _PageLoadding = false;
        nexButton.removeClass("_loading");

        if (data.length !== _PageSize) {
            nexButton.hide();
        } else {
            nexButton.show();
        }

        let firstOrImportant = false;
        const fo = data.filter(function (item) {
            return (item.ImageId > 0 || item.ImageCId > 0);
        });

        // вставляем важную новость или новость с картинкой

        if (fo.length > 0 && page === 0) {
            // превая строка
            firstOrImportant = fo[0];
            idiv.append(MakeEventRow(fo[0], true));
            last_big = true;
        }


        $.each(data, function (index, k) {

            if (k === firstOrImportant) {
                return null;
            }


            var MakeBig = k.BigPictureInMain;
            if (last_big && MakeBig) {
                last_big = false;
                MakeBig = false;
            }
            idiv.append(MakeEventRow(k, MakeBig));
            last_big = MakeBig;

        });


    }).fail(function () {
        alert("Error load data");
        _PageLoadding = false;

    });
}


function decodeType(name, IsEng) {

    let tpName;
    switch (name) {
        case "events":
            tpName = IsEng ? 'News' : 'Новость';
            break;
        case "performance":
            tpName = IsEng ? 'Speech' : 'Выступление';
            break;
        case "interview":
            tpName = IsEng ? 'Interview' : 'Интервью';
            break;
        case "press":
            tpName = IsEng ? 'Press release' : 'Пресс-релиз';
            break;
        default:
            tpName = IsEng ? 'News' : 'Новость';
    }
    return tpName;
}

function NLoadPage(idiv, page, IsEng, dateFrom, dateTo) {

    const more_button = idiv.parent().children(".more-button");
    more_button.addClass("_loading");
    $.ajax({
        url: _NewsSourceURL,
        data: {page: page, IsEng: (!!IsEng), dateFrom: dateFrom, dateTo: dateTo, Tid: CurrentThemaID},
        cache: false
    }).done(function (data) {
        _PageLoadding = false;
        more_button.removeClass("_loading");

        if (data.length !== _PageSize) {
            more_button.hide();
        } else {
            more_button.show();
        }

        let divday = $('<div class="home-previews_day">');


        $.each(data, function (index, k) {


            if (News_last_day !== k.DT) {
                News_last_day = k.DT;
                divday = $('<div class="home-previews_day">');

                dt = $('<div class="home-previews_day-date">' + moment(k.DT).format("DD MMMM") + '</div>');
                divday.append(dt);
                idiv.append(divday);
            }

            const press_root = $('<div class="home-previews_item"></div>');
            const row = $('<div class="row flex-md-nowrap"></div>');
            row.append($(' <div class="col-md-2"><div class="home-previews_item-time">' + k.dateupdate + '</div></div>'));
            const titleInfo = $('<div class="home-previews_item-title"><a target="_blank" href="' + k.doc_htm.trim() + '">' + k.name_doc.trim() + '</a></div>');
            row.append(titleInfo);
            if (k.Important !== 0) {
                row.append($('<div class="home-previews_item-icon offset-md-1 icon-important"></div>'));
            }
            press_root.append(row);
            if (k.MenuTitle !== null) {
                press_root.append($('<div class="offset-md-2 row home-previews_item-source_wrap"><div class="home-previews_item-source">' + k.MenuTitle.trim() + '</div></div>'));
            }
            divday.append(press_root);

        });

    }).fail(function () {
        alert("Error load data");
        _PageLoadding = false;

    });

}


function MakeEventRow(k, IsImportantRow) {


    let dtm = moment(k.DT).format("DD MMMM YYYY");
    if (moment(k.DT).format("DD.MM.YYYY") === moment().format("DD.MM.YYYY")) {
        dtm = IsEng === 1 ? "Today" : "Сегодня";
    }
    let tpName = decodeType(k.TBLType, IsEng);

    let _link;
    if (k.TBLType === 'press') {
        _link = '/press/pr/?file=' + k.doc_htm;
    } else {
        _link = '/press/event/?id=' + k.doc_htm;
    }
    _link = (IsEng ? '/eng' + _link : _link);

    let press_root = $('<div class="news _in-feed col-md-17 ' + (k.Video === 1 ? '_with-video' : '') + (IsImportantRow ? ' _big' : '') + '"></div>');
    let bkgimg = '';
    if (IsImportantRow) {
        if (k.ImageId > 0) {
            bkgimg = 'style="background-image:url(/legacy/PhotoStore/getimgid/' + k.ImageId + '.png);"';
        } else {
            bkgimg = 'style="background-image:url(/legacy/PhotoStore/getimgid/' + k.ImageCId + '.png);"';
        }
    }
    const news_inner = $('<div class="news_inner"  ' + bkgimg + '></div>');

    const rtp = $('<div class="news_text"></div>');

    rtp.append($('<div class="news_info"><div class= "news_date"> ' + dtm + '</div><div class="news_category">' + tpName + '</div></div>'));
    rtp.append($('<a class="news_title" href="' + _link + '">' + k.name_doc + '</a>'));

    news_inner.append(rtp);

    if (k.ImageId > 0) {
        news_inner.append('<a target="_blank" href="' + _link + '" class="col-md-5 offset-md-1 news_image"><img src="/legacy/PhotoStore/getimgid/' + k.ImageId + '.png" alt=""></a>');
    } else {
        // елси есть кроп то еего
        if (k.ImageCId > 0) {
            news_inner.append('<a target="_blank" href="' + _link + '" class="col-md-5 offset-md-1 news_image"><img src="/legacy/PhotoStore/getimgid/' + k.ImageCId + '.png" alt=""></a>');

        }


    }

    press_root.append(news_inner);
    return press_root;
}