/*!
 * All material copyright ESRI, All Rights Reserved, unless otherwise specified.
 * See https://github.com/Esri/calcite-components/blob/master/LICENSE.md for details.
 * v1.0.0-beta.97
 */
import { proxyCustomElement, HTMLElement, createEvent, h, Fragment } from '@stencil/core/internal/client/index.js';
import { e as getOrder, b as dateFromRange, n as nextMonth, f as prevMonth } from './date.js';
import { H as Heading } from './Heading.js';
import { i as isActivationKey } from './key.js';
import { n as numberStringFormatter } from './locale.js';
import { o as closestElementCrossShadowBoundary } from './dom.js';
import { d as defineCustomElement$1 } from './icon.js';

const BUDDHIST_CALENDAR_YEAR_OFFSET = 543;

const datePickerMonthHeaderCss = "@keyframes in{0%{opacity:0}100%{opacity:1}}@keyframes in-down{0%{opacity:0;transform:translate3D(0, -5px, 0)}100%{opacity:1;transform:translate3D(0, 0, 0)}}@keyframes in-up{0%{opacity:0;transform:translate3D(0, 5px, 0)}100%{opacity:1;transform:translate3D(0, 0, 0)}}@keyframes in-scale{0%{opacity:0;transform:scale3D(0.95, 0.95, 1)}100%{opacity:1;transform:scale3D(1, 1, 1)}}:root{--calcite-animation-timing:calc(150ms * var(--calcite-internal-duration-factor));--calcite-internal-duration-factor:var(--calcite-duration-factor, 1);--calcite-internal-animation-timing-fast:calc(100ms * var(--calcite-internal-duration-factor));--calcite-internal-animation-timing-medium:calc(200ms * var(--calcite-internal-duration-factor));--calcite-internal-animation-timing-slow:calc(300ms * var(--calcite-internal-duration-factor))}.calcite-animate{opacity:0;animation-fill-mode:both;animation-duration:var(--calcite-animation-timing)}.calcite-animate__in{animation-name:in}.calcite-animate__in-down{animation-name:in-down}.calcite-animate__in-up{animation-name:in-up}.calcite-animate__in-scale{animation-name:in-scale}@media (prefers-reduced-motion: reduce){:root{--calcite-internal-duration-factor:0.01}}:root{--calcite-floating-ui-transition:var(--calcite-animation-timing)}:host([hidden]){display:none}:host{display:block}.header{display:flex;justify-content:space-between;padding-block:0px;padding-inline:0.25rem}:host([scale=s]) .text{margin-block:0.5rem;font-size:var(--calcite-font-size--1);line-height:1rem}:host([scale=s]) .chevron{block-size:2.25rem}:host([scale=m]) .text{margin-block:0.75rem;font-size:var(--calcite-font-size-0);line-height:1.25rem}:host([scale=m]) .chevron{block-size:3rem}:host([scale=l]) .text{margin-block:1rem;font-size:var(--calcite-font-size-1);line-height:1.5rem}:host([scale=l]) .chevron{block-size:3.5rem}.chevron{margin-inline:-0.25rem;box-sizing:content-box;display:flex;flex-grow:0;cursor:pointer;align-items:center;justify-content:center;border-style:none;background-color:var(--calcite-ui-foreground-1);padding-inline:0.25rem;color:var(--calcite-ui-text-3);outline:2px solid transparent;outline-offset:2px;outline-color:transparent;transition:all var(--calcite-animation-timing) ease-in-out 0s, outline 0s, outline-offset 0s;inline-size:14.2857142857%}.chevron:focus{outline:2px solid var(--calcite-ui-brand);outline-offset:-2px}.chevron:hover,.chevron:focus{background-color:var(--calcite-ui-foreground-2);fill:var(--calcite-ui-text-1);color:var(--calcite-ui-text-1)}.chevron:active{background-color:var(--calcite-ui-foreground-3)}.chevron[aria-disabled=true]{pointer-events:none;opacity:0}.text{margin-block:auto;display:flex;inline-size:100%;flex:1 1 auto;align-items:center;justify-content:center;text-align:center;line-height:1}.text--reverse{flex-direction:row-reverse}.month,.year,.suffix{margin-inline:0.25rem;margin-block:auto;display:inline-block;background-color:var(--calcite-ui-foreground-1);font-weight:var(--calcite-font-weight-medium);line-height:1.25;color:var(--calcite-ui-text-1);font-size:inherit}.year{position:relative;inline-size:2.5rem;border-style:none;background-color:transparent;text-align:center;font-family:inherit;outline-color:transparent}.year:hover{transition-duration:100ms;transition-timing-function:cubic-bezier(0.4, 0, 0.2, 1);transition-property:outline-color;outline:2px solid var(--calcite-ui-border-2);outline-offset:2px}.year:focus{outline:2px solid var(--calcite-ui-brand);outline-offset:2px}.year--suffix{text-align:start}.year-wrap{position:relative}.suffix{inset-block-start:0px;white-space:nowrap;text-align:start;inset-inline-start:0}";

const DatePickerMonthHeader = /*@__PURE__*/ proxyCustomElement(class extends HTMLElement {
  constructor() {
    super();
    this.__registerHost();
    this.__attachShadow();
    this.calciteDatePickerSelect = createEvent(this, "calciteDatePickerSelect", 6);
    //--------------------------------------------------------------------------
    //
    //  Private State/Props
    //
    //--------------------------------------------------------------------------
    this.globalAttributes = {};
    //--------------------------------------------------------------------------
    //
    //  Private Methods
    //
    //--------------------------------------------------------------------------
    /**
     * Increment year on UP/DOWN keys
     *
     * @param event
     */
    this.onYearKey = (event) => {
      const localizedYear = this.parseCalendarYear(event.target.value);
      switch (event.key) {
        case "ArrowDown":
          event.preventDefault();
          this.setYear({ localizedYear, offset: -1 });
          break;
        case "ArrowUp":
          event.preventDefault();
          this.setYear({ localizedYear, offset: 1 });
          break;
      }
    };
    this.onYearChange = (event) => {
      this.setYear({
        localizedYear: this.parseCalendarYear(event.target.value)
      });
    };
    this.onYearInput = (event) => {
      this.setYear({
        localizedYear: this.parseCalendarYear(event.target.value),
        commit: false
      });
    };
    this.prevMonthClick = (event) => {
      this.handleArrowClick(event, this.prevMonthDate);
    };
    this.prevMonthKeydown = (event) => {
      if (isActivationKey(event.key)) {
        this.prevMonthClick(event);
      }
    };
    this.nextMonthClick = (event) => {
      this.handleArrowClick(event, this.nextMonthDate);
    };
    this.nextMonthKeydown = (event) => {
      if (isActivationKey(event.key)) {
        this.nextMonthClick(event);
      }
    };
    /*
     * Update active month on clicks of left/right arrows
     */
    this.handleArrowClick = (event, date) => {
      event.preventDefault();
      this.calciteDatePickerSelect.emit(date);
    };
  }
  //--------------------------------------------------------------------------
  //
  //  Lifecycle
  //
  //--------------------------------------------------------------------------
  componentWillLoad() {
    this.parentDatePickerEl = closestElementCrossShadowBoundary(this.el, "calcite-date-picker");
  }
  connectedCallback() {
    this.setNextPrevMonthDates();
  }
  render() {
    return h("div", { class: "header" }, this.renderContent());
  }
  renderContent() {
    var _a;
    if (!this.activeDate || !this.localeData) {
      return null;
    }
    if (this.parentDatePickerEl) {
      const { numberingSystem, lang: locale } = this.parentDatePickerEl;
      numberStringFormatter.numberFormatOptions = {
        useGrouping: false,
        ...(numberingSystem && { numberingSystem }),
        ...(locale && { locale })
      };
    }
    const activeMonth = this.activeDate.getMonth();
    const { months, unitOrder } = this.localeData;
    const localizedMonth = (months.wide || months.narrow || months.abbreviated)[activeMonth];
    const localizedYear = this.formatCalendarYear(this.activeDate.getFullYear());
    const iconScale = this.scale === "l" ? "m" : "s";
    const order = getOrder(unitOrder);
    const reverse = order.indexOf("y") < order.indexOf("m");
    const suffix = (_a = this.localeData.year) === null || _a === void 0 ? void 0 : _a.suffix;
    return (h(Fragment, null, h("a", { "aria-disabled": `${this.prevMonthDate.getMonth() === activeMonth}`, "aria-label": this.intlPrevMonth, class: "chevron", href: "#", onClick: this.prevMonthClick, onKeyDown: this.prevMonthKeydown, role: "button", tabindex: this.prevMonthDate.getMonth() === activeMonth ? -1 : 0 }, h("calcite-icon", { "flip-rtl": true, icon: "chevron-left", scale: iconScale })), h("div", { class: { text: true, "text--reverse": reverse } }, h(Heading, { class: "month", level: this.headingLevel }, localizedMonth), h("span", { class: "year-wrap" }, h("input", { "aria-label": this.intlYear, class: {
        year: true,
        "year--suffix": !!suffix
      }, inputmode: "numeric", maxlength: "4", minlength: "1", onChange: this.onYearChange, onInput: this.onYearInput, onKeyDown: this.onYearKey, pattern: "\\d*", ref: (el) => (this.yearInput = el), type: "text", value: localizedYear }), suffix && h("span", { class: "suffix" }, suffix))), h("a", { "aria-disabled": `${this.nextMonthDate.getMonth() === activeMonth}`, "aria-label": this.intlNextMonth, class: "chevron", href: "#", onClick: this.nextMonthClick, onKeyDown: this.nextMonthKeydown, role: "button", tabindex: this.nextMonthDate.getMonth() === activeMonth ? -1 : 0 }, h("calcite-icon", { "flip-rtl": true, icon: "chevron-right", scale: iconScale }))));
  }
  setNextPrevMonthDates() {
    if (!this.activeDate) {
      return;
    }
    this.nextMonthDate = dateFromRange(nextMonth(this.activeDate), this.min, this.max);
    this.prevMonthDate = dateFromRange(prevMonth(this.activeDate), this.min, this.max);
  }
  formatCalendarYear(year) {
    const { localeData } = this;
    const buddhistCalendar = localeData["default-calendar"] === "buddhist";
    const yearOffset = buddhistCalendar ? BUDDHIST_CALENDAR_YEAR_OFFSET : 0;
    return numberStringFormatter.localize(`${year + yearOffset}`);
  }
  parseCalendarYear(year) {
    const { localeData } = this;
    const buddhistCalendar = localeData["default-calendar"] === "buddhist";
    const yearOffset = buddhistCalendar ? BUDDHIST_CALENDAR_YEAR_OFFSET : 0;
    const parsedYear = Number(numberStringFormatter.delocalize(year)) - yearOffset;
    return numberStringFormatter.localize(`${parsedYear}`);
  }
  getInRangeDate({ localizedYear, offset = 0 }) {
    const { min, max, activeDate } = this;
    const parsedYear = Number(numberStringFormatter.delocalize(localizedYear));
    const length = parsedYear.toString().length;
    const year = isNaN(parsedYear) ? false : parsedYear + offset;
    const inRange = year && (!min || min.getFullYear() <= year) && (!max || max.getFullYear() >= year);
    // if you've supplied a year and it's in range
    if (year && inRange && length === localizedYear.length) {
      const nextDate = new Date(activeDate);
      nextDate.setFullYear(year);
      return dateFromRange(nextDate, min, max);
    }
  }
  /**
   * Parse localized year string from input,
   * set to active if in range
   *
   * @param root0
   * @param root0.localizedYear
   * @param root0.commit
   * @param root0.offset
   */
  setYear({ localizedYear, commit = true, offset = 0 }) {
    const { yearInput, activeDate } = this;
    const inRangeDate = this.getInRangeDate({ localizedYear, offset });
    // if you've supplied a year and it's in range, update active date
    if (inRangeDate) {
      this.calciteDatePickerSelect.emit(inRangeDate);
    }
    if (commit) {
      yearInput.value = this.formatCalendarYear((inRangeDate || activeDate).getFullYear());
    }
  }
  get el() { return this; }
  static get watchers() { return {
    "min": ["setNextPrevMonthDates"],
    "max": ["setNextPrevMonthDates"],
    "activeDate": ["setNextPrevMonthDates"]
  }; }
  static get style() { return datePickerMonthHeaderCss; }
}, [1, "calcite-date-picker-month-header", {
    "selectedDate": [16],
    "activeDate": [16],
    "headingLevel": [2, "heading-level"],
    "min": [16],
    "max": [16],
    "intlPrevMonth": [1, "intl-prev-month"],
    "intlNextMonth": [1, "intl-next-month"],
    "intlYear": [1, "intl-year"],
    "scale": [513],
    "localeData": [16],
    "globalAttributes": [32],
    "nextMonthDate": [32],
    "prevMonthDate": [32]
  }]);
function defineCustomElement() {
  if (typeof customElements === "undefined") {
    return;
  }
  const components = ["calcite-date-picker-month-header", "calcite-icon"];
  components.forEach(tagName => { switch (tagName) {
    case "calcite-date-picker-month-header":
      if (!customElements.get(tagName)) {
        customElements.define(tagName, DatePickerMonthHeader);
      }
      break;
    case "calcite-icon":
      if (!customElements.get(tagName)) {
        defineCustomElement$1();
      }
      break;
  } });
}
defineCustomElement();

export { DatePickerMonthHeader as D, defineCustomElement as d };