Neovici/cosmoz-omnitable

/* eslint-disable max-lines-per-function */
import { useEffect, useMemo } from '@pionjs/pion';

export const useHeader = ({
    host,
    selectedItems,
    data,
    sortAndGroupOptions,
    collapsedColumns,
    settings,
    filterFunctions,
    settingS,
    filters,
    ...rest
}) => {
    const allSelected =
            data && data.length > 0 && selectedItems.length === data.length,
        onAllCheckboxChange = (event) => {
            if (event.target.checked) {
                host.shadowRoot.querySelector('#groupedList').selectAll();
            } else {
                host.shadowRoot.querySelector('#groupedList').deselectAll();
            }
        },
        { groupOnColumn } = sortAndGroupOptions,
        hasHiddenFilter = useMemo(
            () =>
                [
                    groupOnColumn,
                    ...collapsedColumns,
                    ...settings.columns.filter((s) => s.disabled),
                ].some(
                    (column) =>
                        column && Object.keys(filterFunctions).includes(column.name)
                ),
            [filterFunctions, settings, collapsedColumns]
        ),
        settingsConfig = useMemo(
            () => ({
                ...settingS,
                collapsed: collapsedColumns,
                badge: hasHiddenFilter,
                filters,
            }),
            [settingS, collapsedColumns, hasHiddenFilter, filters]
        );

    useEffect(() => {
        const el = host.shadowRoot.querySelector('#tableContent'),
            observer = new ResizeObserver((entries) =>
                requestAnimationFrame(() => {
                    host.style.setProperty(
                        '--ot-height',
                        entries[0]?.contentRect.height + 'px'
                    );
                })
            );
        observer.observe(el);
        return () => observer.unobserve(el);
    }, []);

    return {
        allSelected,
        onAllCheckboxChange,
        data,
        settingsConfig,
        filters,
        groupOnColumn,
        sortAndGroup: sortAndGroupOptions.sortAndGroup,
        ...rest,
    };
};