/**
 * Get the first day of the week
 *
 * @return {number}
 */
export function getFirstDay(): number {
    if (typeof window.firstDay === 'undefined') {
        console.warn('No firstDay found');
        return 1;
    }

    return window.firstDay;
}

/**
 * Get a list of day names (full names)
 *
 * @return {string[]}
 */
export function getDayNames(): string[] {
    if (typeof window.dayNames === 'undefined') {
        console.warn('No dayNames found');
        return ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
    }

    return window.dayNames;
}

/**
 * Get a list of day names (short names)
 *
 * @return {string[]}
 */
export function getDayNamesShort(): string[] {
    if (typeof window.dayNamesShort === 'undefined') {
        console.warn('No dayNamesShort found');
        return ['Sun.', 'Mon.', 'Tue.', 'Wed.', 'Thu.', 'Fri.', 'Sat.'];
    }

    return window.dayNamesShort;
}

/**
 * Get a list of day names (minified names)
 *
 * @return {string[]}
 */
export function getDayNamesMin(): string[] {
    if (typeof window.dayNamesMin === 'undefined') {
        console.warn('No dayNamesMin found');
        return ['Su', 'Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa'];
    }

    return window.dayNamesMin;
}

/**
 * Get a list of month names (full names)
 *
 * @return {string[]}
 */
export function getMonthNames(): string[] {
    if (typeof window.monthNames === 'undefined') {
        console.warn('No monthNames found');
        return ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];
    }

    return window.monthNames;
}

/**
 * Get a list of month names (short names)
 *
 * @return {string[]}
 */
export function getMonthNamesShort(): string[] {
    if (typeof window.monthNamesShort === 'undefined') {
        console.warn('No monthNamesShort found');
        return ['Jan.', 'Feb.', 'Mar.', 'Apr.', 'May.', 'Jun.', 'Jul.', 'Aug.', 'Sep.', 'Oct.', 'Nov.', 'Dec.'];
    }

    return window.monthNamesShort;
}