/*!
FullCalendar Moment Plugin v6.1.8
Docs & License: https://fullcalendar.io/docs/moment-plugin
(c) 2023 Adam Shaw
*/
FullCalendar.Moment = (function (exports, core, moment, internal) {
    'use strict';

    function _interopDefault (e) { return e && e.__esModule ? e : { 'default': e }; }

    var moment__default = /*#__PURE__*/_interopDefault(moment);

    function toMoment(date, calendar) {
        if (!(calendar instanceof internal.CalendarImpl)) {
            throw new Error('must supply a CalendarApi instance');
        }
        let { dateEnv } = calendar.getCurrentData();
        return convertToMoment(date, dateEnv.timeZone, null, dateEnv.locale.codes[0]);
    }
    function toMomentDuration(fcDuration) {
        return moment__default["default"].duration(fcDuration); // moment accepts all the props that fc.Duration already has!
    }
    // Internal Utils
    function convertToMoment(input, timeZone, timeZoneOffset, locale) {
        let mom;
        if (timeZone === 'local') {
            mom = moment__default["default"](input);
        }
        else if (timeZone === 'UTC') {
            mom = moment__default["default"].utc(input);
        }
        else if (moment__default["default"].tz) {
            mom = moment__default["default"].tz(input, timeZone);
        }
        else {
            mom = moment__default["default"].utc(input);
            if (timeZoneOffset != null) {
                mom.utcOffset(timeZoneOffset);
            }
        }
        mom.locale(locale);
        return mom;
    }

    function formatWithCmdStr(cmdStr, arg) {
        let cmd = parseCmdStr(cmdStr);
        if (arg.end) {
            let startMom = convertToMoment(arg.start.array, arg.timeZone, arg.start.timeZoneOffset, arg.localeCodes[0]);
            let endMom = convertToMoment(arg.end.array, arg.timeZone, arg.end.timeZoneOffset, arg.localeCodes[0]);
            return formatRange(cmd, createMomentFormatFunc(startMom), createMomentFormatFunc(endMom), arg.defaultSeparator);
        }
        return convertToMoment(arg.date.array, arg.timeZone, arg.date.timeZoneOffset, arg.localeCodes[0]).format(cmd.whole); // TODO: test for this
    }
    function createMomentFormatFunc(mom) {
        return (cmdStr) => (cmdStr ? mom.format(cmdStr) : '' // because calling with blank string results in ISO8601 :(
        );
    }
    function parseCmdStr(cmdStr) {
        let parts = cmdStr.match(/^(.*?)\{(.*)\}(.*)$/); // TODO: lookbehinds for escape characters
        if (parts) {
            let middle = parseCmdStr(parts[2]);
            return {
                head: parts[1],
                middle,
                tail: parts[3],
                whole: parts[1] + middle.whole + parts[3],
            };
        }
        return {
            head: null,
            middle: null,
            tail: null,
            whole: cmdStr,
        };
    }
    function formatRange(cmd, formatStart, formatEnd, separator) {
        if (cmd.middle) {
            let startHead = formatStart(cmd.head);
            let startMiddle = formatRange(cmd.middle, formatStart, formatEnd, separator);
            let startTail = formatStart(cmd.tail);
            let endHead = formatEnd(cmd.head);
            let endMiddle = formatRange(cmd.middle, formatStart, formatEnd, separator);
            let endTail = formatEnd(cmd.tail);
            if (startHead === endHead && startTail === endTail) {
                return startHead +
                    (startMiddle === endMiddle ? startMiddle : startMiddle + separator + endMiddle) +
                    startTail;
            }
        }
        let startWhole = formatStart(cmd.whole);
        let endWhole = formatEnd(cmd.whole);
        if (startWhole === endWhole) {
            return startWhole;
        }
        return startWhole + separator + endWhole;
    }

    var plugin = core.createPlugin({
        name: '@fullcalendar/moment',
        cmdFormatter: formatWithCmdStr,
    });

    core.globalPlugins.push(plugin);

    exports["default"] = plugin;
    exports.toMoment = toMoment;
    exports.toMomentDuration = toMomentDuration;

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

    return exports;

})({}, FullCalendar, moment, FullCalendar.Internal);
