/*!
FullCalendar Multi-Month Plugin v6.1.8
Docs & License: https://fullcalendar.io/docs/multimonth-grid
(c) 2023 Adam Shaw
*/
FullCalendar.MultiMonth = (function (exports, core, internal$1, internal, preact) {
    'use strict';

    class SingleMonth extends internal.DateComponent {
        constructor() {
            super(...arguments);
            this.buildDayTableModel = internal.memoize(internal$1.buildDayTableModel);
            this.slicer = new internal$1.DayTableSlicer();
            this.state = {
                labelId: internal.getUniqueDomId(),
            };
        }
        render() {
            const { props, state, context } = this;
            const { dateProfile, forPrint } = props;
            const { options } = context;
            const dayTableModel = this.buildDayTableModel(dateProfile, context.dateProfileGenerator);
            const slicedProps = this.slicer.sliceProps(props, dateProfile, options.nextDayThreshold, context, dayTableModel);
            // ensure single-month has aspect ratio
            const tableHeight = props.tableWidth != null ? props.tableWidth / options.aspectRatio : null;
            const rowCnt = dayTableModel.cells.length;
            const rowHeight = tableHeight != null ? tableHeight / rowCnt : null;
            return (preact.createElement("div", { ref: props.elRef, "data-date": props.isoDateStr, className: "fc-multimonth-month", style: { width: props.width }, role: "grid", "aria-labelledby": state.labelId },
                preact.createElement("div", { className: "fc-multimonth-header", style: { marginBottom: rowHeight }, role: "presentation" },
                    preact.createElement("div", { className: "fc-multimonth-title", id: state.labelId }, context.dateEnv.format(props.dateProfile.currentRange.start, props.titleFormat)),
                    preact.createElement("table", { className: [
                            'fc-multimonth-header-table',
                            context.theme.getClass('table'),
                        ].join(' '), role: "presentation" },
                        preact.createElement("thead", { role: "rowgroup" },
                            preact.createElement(internal.DayHeader, { dateProfile: props.dateProfile, dates: dayTableModel.headerDates, datesRepDistinctDays: false })))),
                preact.createElement("div", { className: [
                        'fc-multimonth-daygrid',
                        'fc-daygrid',
                        'fc-daygrid-body',
                        !forPrint && 'fc-daygrid-body-balanced',
                        forPrint && 'fc-daygrid-body-unbalanced',
                        forPrint && 'fc-daygrid-body-natural',
                    ].join(' '), style: { marginTop: -rowHeight } },
                    preact.createElement("table", { className: [
                            'fc-multimonth-daygrid-table',
                            context.theme.getClass('table'),
                        ].join(' '), style: { height: forPrint ? '' : tableHeight }, role: "presentation" },
                        preact.createElement("tbody", { role: "rowgroup" },
                            preact.createElement(internal$1.TableRows, Object.assign({}, slicedProps, { dateProfile: dateProfile, cells: dayTableModel.cells, eventSelection: props.eventSelection, dayMaxEvents: !forPrint, dayMaxEventRows: !forPrint, showWeekNumbers: options.weekNumbers, clientWidth: props.clientWidth, clientHeight: props.clientHeight, forPrint: forPrint })))))));
        }
    }

    class MultiMonthView extends internal.DateComponent {
        constructor() {
            super(...arguments);
            this.splitDateProfileByMonth = internal.memoize(splitDateProfileByMonth);
            this.buildMonthFormat = internal.memoize(buildMonthFormat);
            this.scrollElRef = preact.createRef();
            this.firstMonthElRef = preact.createRef();
            this.needsScrollReset = false;
            this.handleSizing = (isForced) => {
                if (isForced) {
                    this.updateSize();
                }
            };
        }
        render() {
            const { context, props, state } = this;
            const { options } = context;
            const { clientWidth, clientHeight } = state;
            const monthHPadding = state.monthHPadding || 0;
            const colCount = Math.min(clientWidth != null ?
                Math.floor(clientWidth / (options.multiMonthMinWidth + monthHPadding)) :
                1, options.multiMonthMaxColumns) || 1;
            const monthWidthPct = (100 / colCount) + '%';
            const monthTableWidth = clientWidth == null ? null :
                (clientWidth / colCount) - monthHPadding;
            const isLegitSingleCol = clientWidth != null && colCount === 1;
            const monthDateProfiles = this.splitDateProfileByMonth(context.dateProfileGenerator, props.dateProfile, context.dateEnv, isLegitSingleCol ? false : options.fixedWeekCount, options.showNonCurrentDates);
            const monthTitleFormat = this.buildMonthFormat(options.multiMonthTitleFormat, monthDateProfiles);
            const rootClassNames = [
                'fc-multimonth',
                isLegitSingleCol ?
                    'fc-multimonth-singlecol' :
                    'fc-multimonth-multicol',
                (monthTableWidth != null && monthTableWidth < 400) ?
                    'fc-multimonth-compact' :
                    '',
            ];
            return (preact.createElement(internal.ViewContainer, { elRef: this.scrollElRef, elClasses: rootClassNames, viewSpec: context.viewSpec }, monthDateProfiles.map((monthDateProfile, i) => {
                const monthStr = internal.formatIsoMonthStr(monthDateProfile.currentRange.start);
                return (preact.createElement(SingleMonth, Object.assign({}, props, { key: monthStr, isoDateStr: monthStr, elRef: i === 0 ? this.firstMonthElRef : undefined, titleFormat: monthTitleFormat, dateProfile: monthDateProfile, width: monthWidthPct, tableWidth: monthTableWidth, clientWidth: clientWidth, clientHeight: clientHeight })));
            })));
        }
        componentDidMount() {
            this.updateSize();
            this.context.addResizeHandler(this.handleSizing);
            this.requestScrollReset();
        }
        componentDidUpdate(prevProps) {
            if (!internal.isPropsEqual(prevProps, this.props)) { // an external change?
                this.handleSizing(false);
            }
            if (prevProps.dateProfile !== this.props.dateProfile) {
                this.requestScrollReset();
            }
            else {
                this.flushScrollReset();
            }
        }
        componentWillUnmount() {
            this.context.removeResizeHandler(this.handleSizing);
        }
        updateSize() {
            const scrollEl = this.scrollElRef.current;
            const firstMonthEl = this.firstMonthElRef.current;
            if (scrollEl) {
                this.setState({
                    clientWidth: scrollEl.clientWidth,
                    clientHeight: scrollEl.clientHeight,
                });
            }
            if (firstMonthEl && scrollEl) {
                if (this.state.monthHPadding == null) { // always remember initial non-zero value
                    this.setState({
                        monthHPadding: scrollEl.clientWidth - // go within padding
                            firstMonthEl.firstChild.offsetWidth,
                    });
                }
            }
        }
        requestScrollReset() {
            this.needsScrollReset = true;
            this.flushScrollReset();
        }
        flushScrollReset() {
            if (this.needsScrollReset &&
                this.state.monthHPadding != null // indicates sizing already happened
            ) {
                const { currentDate } = this.props.dateProfile;
                const scrollEl = this.scrollElRef.current;
                const monthEl = scrollEl.querySelector(`[data-date="${internal.formatIsoMonthStr(currentDate)}"]`);
                scrollEl.scrollTop = monthEl.getBoundingClientRect().top -
                    this.firstMonthElRef.current.getBoundingClientRect().top;
                this.needsScrollReset = false;
            }
        }
        // workaround for when queued setState render (w/ clientWidth) gets cancelled because
        // subsequent update and shouldComponentUpdate says not to render :(
        shouldComponentUpdate() {
            return true;
        }
    }
    // date profile
    // -------------------------------------------------------------------------------------------------
    const oneMonthDuration = internal.createDuration(1, 'month');
    function splitDateProfileByMonth(dateProfileGenerator, dateProfile, dateEnv, fixedWeekCount, showNonCurrentDates) {
        const { start, end } = dateProfile.currentRange;
        let monthStart = start;
        const monthDateProfiles = [];
        while (monthStart.valueOf() < end.valueOf()) {
            const monthEnd = dateEnv.add(monthStart, oneMonthDuration);
            const currentRange = {
                // yuck
                start: dateProfileGenerator.skipHiddenDays(monthStart),
                end: dateProfileGenerator.skipHiddenDays(monthEnd, -1, true),
            };
            let renderRange = internal$1.buildDayTableRenderRange({
                currentRange,
                snapToWeek: true,
                fixedWeekCount,
                dateEnv,
            });
            renderRange = {
                // yuck
                start: dateProfileGenerator.skipHiddenDays(renderRange.start),
                end: dateProfileGenerator.skipHiddenDays(renderRange.end, -1, true),
            };
            const activeRange = dateProfile.activeRange ?
                internal.intersectRanges(dateProfile.activeRange, showNonCurrentDates ? renderRange : currentRange) :
                null;
            monthDateProfiles.push({
                currentDate: dateProfile.currentDate,
                isValid: dateProfile.isValid,
                validRange: dateProfile.validRange,
                renderRange,
                activeRange,
                currentRange,
                currentRangeUnit: 'month',
                isRangeAllDay: true,
                dateIncrement: dateProfile.dateIncrement,
                slotMinTime: dateProfile.slotMaxTime,
                slotMaxTime: dateProfile.slotMinTime,
            });
            monthStart = monthEnd;
        }
        return monthDateProfiles;
    }
    // date formatting
    // -------------------------------------------------------------------------------------------------
    const YEAR_MONTH_FORMATTER = internal.createFormatter({ year: 'numeric', month: 'long' });
    const YEAR_FORMATTER = internal.createFormatter({ month: 'long' });
    function buildMonthFormat(formatOverride, monthDateProfiles) {
        return formatOverride ||
            ((monthDateProfiles[0].currentRange.start.getUTCFullYear() !==
                monthDateProfiles[monthDateProfiles.length - 1].currentRange.start.getUTCFullYear())
                ? YEAR_MONTH_FORMATTER
                : YEAR_FORMATTER);
    }

    const OPTION_REFINERS = {
        multiMonthTitleFormat: internal.createFormatter,
        multiMonthMaxColumns: Number,
        multiMonthMinWidth: Number,
    };

    var css_248z = ".fc .fc-multimonth{border:1px solid var(--fc-border-color);display:flex;flex-wrap:wrap;overflow-x:hidden;overflow-y:auto}.fc .fc-multimonth-title{font-size:1.2em;font-weight:700;padding:1em 0;text-align:center}.fc .fc-multimonth-daygrid{background:var(--fc-page-bg-color)}.fc .fc-multimonth-daygrid-table,.fc .fc-multimonth-header-table{table-layout:fixed;width:100%}.fc .fc-multimonth-daygrid-table{border-top-style:hidden!important}.fc .fc-multimonth-singlecol .fc-multimonth{position:relative}.fc .fc-multimonth-singlecol .fc-multimonth-header{background:var(--fc-page-bg-color);position:relative;top:0;z-index:2}.fc .fc-multimonth-singlecol .fc-multimonth-daygrid{position:relative;z-index:1}.fc .fc-multimonth-singlecol .fc-multimonth-daygrid-table,.fc .fc-multimonth-singlecol .fc-multimonth-header-table{border-left-style:hidden;border-right-style:hidden}.fc .fc-multimonth-singlecol .fc-multimonth-month:last-child .fc-multimonth-daygrid-table{border-bottom-style:hidden}.fc .fc-multimonth-multicol{line-height:1}.fc .fc-multimonth-multicol .fc-multimonth-month{padding:0 1.2em 1.2em}.fc .fc-multimonth-multicol .fc-daygrid-more-link{border:1px solid var(--fc-event-border-color);display:block;float:none;padding:1px}.fc .fc-multimonth-compact{line-height:1}.fc .fc-multimonth-compact .fc-multimonth-daygrid-table,.fc .fc-multimonth-compact .fc-multimonth-header-table{font-size:.9em}.fc-media-screen .fc-multimonth-singlecol .fc-multimonth-header{position:sticky}.fc-media-print .fc-multimonth{overflow:visible}";
    internal.injectStyles(css_248z);

    var plugin = core.createPlugin({
        name: '@fullcalendar/multimonth',
        initialView: 'multiMonthYear',
        optionRefiners: OPTION_REFINERS,
        views: {
            multiMonth: {
                component: MultiMonthView,
                dateProfileGeneratorClass: internal$1.TableDateProfileGenerator,
                multiMonthMinWidth: 350,
                multiMonthMaxColumns: 3,
            },
            multiMonthYear: {
                type: 'multiMonth',
                duration: { years: 1 },
                fixedWeekCount: true,
                showNonCurrentDates: false,
            },
        },
    });

    core.globalPlugins.push(plugin);

    exports["default"] = plugin;

    Object.defineProperty(exports, '__esModule', { value: true });

    return exports;

})({}, FullCalendar, FullCalendar.DayGrid.Internal, FullCalendar.Internal, FullCalendar.Preact);
