openreplay/frontend/app/components/Dashboard/components/WidgetSessions/WidgetSessions.tsx

import React, {useEffect, useState} from 'react';
import {NoContent, Loader, Pagination, Button} from 'UI';
import Select from 'Shared/Select';
import cn from 'classnames';
import {useStore} from 'App/mstore';
import SessionItem from 'Shared/SessionItem';
import {observer} from 'mobx-react-lite';
import {DateTime} from 'luxon';
import {debounce} from 'App/utils';
import useIsMounted from 'App/hooks/useIsMounted';
import AnimatedSVG, {ICONS} from 'Shared/AnimatedSVG/AnimatedSVG';
import {numberWithCommas} from 'App/utils';
import {HEATMAP} from 'App/constants/card';
import {Tag} from 'antd';

interface Props {
    className?: string;
}

function WidgetSessions(props: Props) {
    const {className = ''} = props;
    const [activeSeries, setActiveSeries] = useState('all');
    const [data, setData] = useState<any>([]);
    const isMounted = useIsMounted();
    const [loading, setLoading] = useState(false);
    const filteredSessions = getListSessionsBySeries(data, activeSeries);
    const {dashboardStore, metricStore, sessionStore, customFieldStore} = useStore();
    const filter = dashboardStore.drillDownFilter;
    const widget = metricStore.instance;
    const startTime = DateTime.fromMillis(filter.startTimestamp).toFormat('LLL dd, yyyy HH:mm');
    const endTime = DateTime.fromMillis(filter.endTimestamp).toFormat('LLL dd, yyyy HH:mm');
    const [seriesOptions, setSeriesOptions] = useState([{label: 'All', value: 'all'}]);
    const hasFilters = filter.filters.length > 0 || (filter.startTimestamp !== dashboardStore.drillDownPeriod.start || filter.endTimestamp !== dashboardStore.drillDownPeriod.end);
    const filterText = filter.filters.length > 0 ? filter.filters[0].value : '';
    const metaList = customFieldStore.list.map((i: any) => i.key);

    const writeOption = ({value}: any) => setActiveSeries(value.value);
    useEffect(() => {
        if (!data) return;
        const seriesOptions = data.map((item: any) => ({
            label: item.seriesName,
            value: item.seriesId
        }));
        setSeriesOptions([{label: 'All', value: 'all'}, ...seriesOptions]);
    }, [data]);

    const fetchSessions = (metricId: any, filter: any) => {
        if (!isMounted()) return;
        setLoading(true);

        const filterCopy = {...filter};
        delete filterCopy.eventsOrderSupport;

        try {
            // Handle filters properly with null checks
            if (filterCopy.filters && filterCopy.filters.length > 0) {
                // Ensure the nested path exists before pushing
                if (filterCopy.series?.[0]?.filter) {
                    if (!filterCopy.series[0].filter.filters) {
                        filterCopy.series[0].filter.filters = [];
                    }
                    filterCopy.series[0].filter.filters.push(...filterCopy.filters);
                }
                filterCopy.filters = [];
            }
        } catch (e) {
            // do nothing
        }
        widget
            .fetchSessions(metricId, filterCopy)
            .then((res: any) => {
                setData(res);
            })
            .finally(() => {
                setLoading(false);
            });
    };
    
    const fetchClickmapSessions = (customFilters: Record<string, any>) => {
        sessionStore.getSessions(customFilters).then((data) => {
            setData([{...data, seriesId: 1, seriesName: 'Clicks'}]);
        });
    };
    const debounceRequest: any = React.useCallback(debounce(fetchSessions, 1000), []);
    const debounceClickMapSearch = React.useCallback(debounce(fetchClickmapSessions, 1000), []);

    const depsString = JSON.stringify(widget.series);

    const loadData = () => {
        if (widget.metricType === HEATMAP && metricStore.clickMapSearch) {
            const clickFilter = {
                value: [metricStore.clickMapSearch],
                type: 'CLICK',
                operator: 'onSelector',
                isEvent: true,
                // @ts-ignore
                filters: []
            };
            const timeRange = {
                rangeValue: dashboardStore.drillDownPeriod.rangeValue,
                startDate: dashboardStore.drillDownPeriod.start,
                endDate: dashboardStore.drillDownPeriod.end
            };
            const customFilter = {
                ...filter,
                ...timeRange,
                filters: [...sessionStore.userFilter.filters, clickFilter]
            };
            debounceClickMapSearch(customFilter);
        } else {
            debounceRequest(widget.metricId, {
                ...filter,
                series: widget.series.map((s) => s.toJson()),
                page: metricStore.sessionsPage,
                limit: metricStore.sessionsPageSize
            });
        }
    };
    useEffect(() => {
        metricStore.updateKey('sessionsPage', 1);
        loadData();
    }, [
        filter.startTimestamp,
        filter.endTimestamp,
        filter.filters,
        depsString,
        metricStore.clickMapSearch,
        activeSeries
    ]);
    useEffect(loadData, [metricStore.sessionsPage]);

    const clearFilters = () => {
        metricStore.updateKey('sessionsPage', 1);
        dashboardStore.resetDrillDownFilter();
    };

    return (
        <div className={cn(className, 'bg-white p-3 pb-0 rounded-lg shadow-sm border mt-3')}>
            <div className="flex items-center justify-between">
                <div>
                    <div className="flex items-baseline">
                        <h2 className="text-xl">{metricStore.clickMapSearch ? 'Clicks' : 'Sessions'}</h2>
                        <div className="ml-2 color-gray-medium">
                            {metricStore.clickMapLabel ? `on "${metricStore.clickMapLabel}" ` : null}
                            between <span className="font-medium color-gray-darkest">{startTime}</span> and{' '}
                            <span className="font-medium color-gray-darkest">{endTime}</span>{' '}
                        </div>
                    </div>

                    {hasFilters && widget.metricType === 'table' &&
                        <div className="py-2"><Tag closable onClose={clearFilters}>{filterText}</Tag></div>}
                </div>

                <div className="flex items-center gap-4">
                    {hasFilters && <Button variant="text-primary" onClick={clearFilters}>Clear Filters</Button>}
                    {widget.metricType !== 'table' && widget.metricType !== HEATMAP && (
                        <div className="flex items-center ml-6">
                            <span className="mr-2 color-gray-medium">Filter by Series</span>
                            <Select options={seriesOptions} defaultValue={'all'} onChange={writeOption} plain/>
                        </div>
                    )}
                </div>
            </div>

            <div className="mt-3">
                <Loader loading={loading}>
                    <NoContent
                        title={
                            <div className="flex items-center justify-center flex-col">
                                <AnimatedSVG name={ICONS.NO_SESSIONS} size={60}/>
                                <div className="mt-4"/>
                                <div className="text-center">
                                    No relevant sessions found for the selected time period
                                </div>
                            </div>
                        }
                        show={filteredSessions.sessions.length === 0}
                    >
                        {filteredSessions.sessions.map((session: any) => (
                            <React.Fragment key={session.sessionId}>
                                <SessionItem session={session} metaList={metaList}/>
                                <div className="border-b"/>
                            </React.Fragment>
                        ))}

                        <div className="flex items-center justify-between p-5">
                            <div>
                                Showing{' '}
                                <span className="font-medium">
                  {(metricStore.sessionsPage - 1) * metricStore.sessionsPageSize + 1}
                </span>{' '}
                                to{' '}
                                <span className="font-medium">
                  {(metricStore.sessionsPage - 1) * metricStore.sessionsPageSize +
                      filteredSessions.sessions.length}
                </span>{' '}
                                of <span className="font-medium">{numberWithCommas(filteredSessions.total)}</span>{' '}
                                sessions.
                            </div>
                            <Pagination
                                page={metricStore.sessionsPage}
                                total={filteredSessions.total}
                                onPageChange={(page: any) => metricStore.updateKey('sessionsPage', page)}
                                limit={metricStore.sessionsPageSize}
                                debounceRequest={500}
                            />
                        </div>
                    </NoContent>
                </Loader>
            </div>
        </div>
    );
}

const getListSessionsBySeries = (data: any, seriesId: any) => {
    const arr = data.reduce(
        (arr: any, element: any) => {
            if (seriesId === 'all') {
                const sessionIds = arr.sessions.map((i: any) => i.sessionId);
                const sessions = element.sessions.filter((i: any) => !sessionIds.includes(i.sessionId));
                arr.sessions.push(...sessions);
            } else if (element.seriesId === seriesId) {
                const sessionIds = arr.sessions.map((i: any) => i.sessionId);
                const sessions = element.sessions.filter((i: any) => !sessionIds.includes(i.sessionId));
                const duplicates = element.sessions.length - sessions.length;
                arr.sessions.push(...sessions);
                arr.total = element.total - duplicates;
            }
            return arr;
        },
        {sessions: []}
    );
    arr.total =
        seriesId === 'all'
            ? Math.max(...data.map((i: any) => i.total))
            : data.find((i: any) => i.seriesId === seriesId).total;
    return arr;
};

export default observer(WidgetSessions);