/*!
 * 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.82
 */
import { proxyCustomElement, HTMLElement, createEvent, h } from '@stencil/core/internal/client';

const stepperCss = "@-webkit-keyframes in{0%{opacity:0}100%{opacity:1}}@keyframes in{0%{opacity:0}100%{opacity:1}}@-webkit-keyframes in-down{0%{opacity:0;-webkit-transform:translate3D(0, -5px, 0);transform:translate3D(0, -5px, 0)}100%{opacity:1;-webkit-transform:translate3D(0, 0, 0);transform:translate3D(0, 0, 0)}}@keyframes in-down{0%{opacity:0;-webkit-transform:translate3D(0, -5px, 0);transform:translate3D(0, -5px, 0)}100%{opacity:1;-webkit-transform:translate3D(0, 0, 0);transform:translate3D(0, 0, 0)}}@-webkit-keyframes in-up{0%{opacity:0;-webkit-transform:translate3D(0, 5px, 0);transform:translate3D(0, 5px, 0)}100%{opacity:1;-webkit-transform:translate3D(0, 0, 0);transform:translate3D(0, 0, 0)}}@keyframes in-up{0%{opacity:0;-webkit-transform:translate3D(0, 5px, 0);transform:translate3D(0, 5px, 0)}100%{opacity:1;-webkit-transform:translate3D(0, 0, 0);transform:translate3D(0, 0, 0)}}@-webkit-keyframes in-scale{0%{opacity:0;-webkit-transform:scale3D(0.95, 0.95, 1);transform:scale3D(0.95, 0.95, 1)}100%{opacity:1;-webkit-transform:scale3D(1, 1, 1);transform:scale3D(1, 1, 1)}}@keyframes in-scale{0%{opacity:0;-webkit-transform:scale3D(0.95, 0.95, 1);transform:scale3D(0.95, 0.95, 1)}100%{opacity:1;-webkit-transform:scale3D(1, 1, 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;-webkit-animation-fill-mode:both;animation-fill-mode:both;-webkit-animation-duration:var(--calcite-animation-timing);animation-duration:var(--calcite-animation-timing)}.calcite-animate__in{-webkit-animation-name:in;animation-name:in}.calcite-animate__in-down{-webkit-animation-name:in-down;animation-name:in-down}.calcite-animate__in-up{-webkit-animation-name:in-up;animation-name:in-up}.calcite-animate__in-scale{-webkit-animation-name:in-scale;animation-name:in-scale}:root{--calcite-popper-transition:var(--calcite-animation-timing)}:host([hidden]){display:none}:host{position:relative;display:-ms-flexbox;display:flex;width:100%;min-width:100%;-ms-flex-direction:row;flex-direction:row;-ms-flex-wrap:wrap;flex-wrap:wrap;-ms-flex-align:stretch;align-items:stretch;-ms-flex-pack:justify;justify-content:space-between}:host([layout=vertical]){-ms-flex:1 1 auto;flex:1 1 auto;-ms-flex-direction:column;flex-direction:column}:host ::slotted(.calcite-stepper-content){display:-ms-flexbox;display:flex;width:100%;min-width:100%;-ms-flex-direction:column;flex-direction:column;-ms-flex-wrap:wrap;flex-wrap:wrap}";

const Stepper = /*@__PURE__*/ proxyCustomElement(class extends HTMLElement {
  constructor() {
    super();
    this.__registerHost();
    this.__attachShadow();
    this.calciteStepperItemChange = createEvent(this, "calciteStepperItemChange", 7);
    //--------------------------------------------------------------------------
    //
    //  Public Properties
    //
    //--------------------------------------------------------------------------
    /** optionally display a status icon next to the step title */
    this.icon = false;
    /** specify the layout of stepper, defaults to horizontal */
    this.layout = "horizontal";
    /** optionally display the number next to the step title */
    this.numbered = false;
    /** specify the scale of stepper, defaults to m */
    this.scale = "m";
    //--------------------------------------------------------------------------
    //
    //  Private State/Props
    //
    //--------------------------------------------------------------------------
    this.itemMap = new Map();
    /** list of sorted Stepper items */
    this.items = [];
    /** list of enabled Stepper items */
    this.enabledItems = [];
  }
  // watch for removal of disabled to register step
  contentWatcher() {
    if (this.layout === "horizontal") {
      if (!this.stepperContentContainer && this.requestedContent) {
        this.addHorizontalContentContainer();
      }
      this.updateContent(this.requestedContent);
    }
  }
  //--------------------------------------------------------------------------
  //
  //  Lifecycle
  //
  //--------------------------------------------------------------------------
  componentDidLoad() {
    // if no stepper items are set as active, default to the first one
    if (!this.currentPosition) {
      this.calciteStepperItemChange.emit({
        position: 0
      });
    }
  }
  componentWillLoad() {
    if (this.layout === "horizontal" && !this.stepperContentContainer) {
      this.addHorizontalContentContainer();
    }
  }
  render() {
    return h("slot", null);
  }
  //--------------------------------------------------------------------------
  //
  //  Event Listeners
  //
  //--------------------------------------------------------------------------
  calciteStepperItemKeyEvent(e) {
    const item = e.detail.item;
    const itemToFocus = e.target;
    const isFirstItem = this.itemIndex(itemToFocus) === 0;
    const isLastItem = this.itemIndex(itemToFocus) === this.enabledItems.length - 1;
    switch (item.key) {
      case "ArrowDown":
      case "ArrowRight":
        if (isLastItem) {
          this.focusFirstItem();
        }
        else {
          this.focusNextItem(itemToFocus);
        }
        break;
      case "ArrowUp":
      case "ArrowLeft":
        if (isFirstItem) {
          this.focusLastItem();
        }
        else {
          this.focusPrevItem(itemToFocus);
        }
        break;
      case "Home":
        this.focusFirstItem();
        break;
      case "End":
        this.focusLastItem();
        break;
    }
  }
  registerItem(event) {
    const item = event.target;
    const { content, position } = event.detail;
    if (content && item.active) {
      this.requestedContent = content;
    }
    this.itemMap.set(item, position);
    this.items = this.sortItems();
    this.enabledItems = this.filterItems();
  }
  updateItem(event) {
    if (event.detail.content) {
      this.requestedContent = event.detail.content;
    }
    this.currentPosition = event.detail.position;
    this.calciteStepperItemChange.emit({
      position: this.currentPosition
    });
  }
  //--------------------------------------------------------------------------
  //
  //  Public Methods
  //
  //--------------------------------------------------------------------------
  /** set the next step as active */
  async nextStep() {
    const enabledStepIndex = this.getEnabledStepIndex(this.currentPosition + 1, "next");
    if (typeof enabledStepIndex !== "number") {
      return;
    }
    this.emitChangedItem(enabledStepIndex);
  }
  /** set the previous step as active */
  async prevStep() {
    const enabledStepIndex = this.getEnabledStepIndex(this.currentPosition - 1, "previous");
    if (typeof enabledStepIndex !== "number") {
      return;
    }
    this.emitChangedItem(enabledStepIndex);
  }
  /** set the requested step as active */
  async goToStep(step) {
    const position = step - 1;
    if (this.currentPosition !== position) {
      this.emitChangedItem(position);
    }
  }
  /** set the first step as active */
  async startStep() {
    const enabledStepIndex = this.getEnabledStepIndex(0, "next");
    if (typeof enabledStepIndex !== "number") {
      return;
    }
    this.emitChangedItem(enabledStepIndex);
  }
  /** set the last step as active */
  async endStep() {
    const enabledStepIndex = this.getEnabledStepIndex(this.items.length - 1, "previous");
    if (typeof enabledStepIndex !== "number") {
      return;
    }
    this.emitChangedItem(enabledStepIndex);
  }
  //--------------------------------------------------------------------------
  //
  //  Private Methods
  //
  //--------------------------------------------------------------------------
  getEnabledStepIndex(startIndex, direction = "next") {
    var _a;
    const { items, currentPosition } = this;
    let newIndex = startIndex;
    while ((_a = items[newIndex]) === null || _a === void 0 ? void 0 : _a.disabled) {
      newIndex = newIndex + (direction === "previous" ? -1 : 1);
    }
    return newIndex !== currentPosition && newIndex < items.length && newIndex >= 0
      ? newIndex
      : null;
  }
  addHorizontalContentContainer() {
    this.stepperContentContainer = document.createElement("div");
    this.stepperContentContainer.classList.add("calcite-stepper-content");
    this.el.insertAdjacentElement("beforeend", this.stepperContentContainer);
  }
  emitChangedItem(position) {
    this.currentPosition = position;
    this.calciteStepperItemChange.emit({
      position
    });
  }
  focusFirstItem() {
    const firstItem = this.enabledItems[0];
    this.focusElement(firstItem);
  }
  focusLastItem() {
    const lastItem = this.enabledItems[this.enabledItems.length - 1];
    this.focusElement(lastItem);
  }
  focusNextItem(e) {
    const index = this.itemIndex(e);
    const nextItem = this.enabledItems[index + 1] || this.enabledItems[0];
    this.focusElement(nextItem);
  }
  focusPrevItem(e) {
    const index = this.itemIndex(e);
    const prevItem = this.enabledItems[index - 1] || this.enabledItems[this.enabledItems.length - 1];
    this.focusElement(prevItem);
  }
  itemIndex(e) {
    return this.enabledItems.indexOf(e);
  }
  focusElement(item) {
    item.focus();
  }
  sortItems() {
    const { itemMap } = this;
    return Array.from(itemMap.keys()).sort((a, b) => itemMap.get(a) - itemMap.get(b));
  }
  filterItems() {
    return this.items.filter((item) => !item.disabled);
  }
  updateContent(content) {
    this.stepperContentContainer.innerHTML = "";
    this.stepperContentContainer.append(...content);
  }
  get el() { return this; }
  static get watchers() { return {
    "requestedContent": ["contentWatcher"]
  }; }
  static get style() { return stepperCss; }
}, [1, "calcite-stepper", {
    "icon": [516],
    "layout": [513],
    "numbered": [516],
    "scale": [513],
    "requestedContent": [1040],
    "nextStep": [64],
    "prevStep": [64],
    "goToStep": [64],
    "startStep": [64],
    "endStep": [64]
  }, [[0, "calciteStepperItemKeyEvent", "calciteStepperItemKeyEvent"], [0, "calciteStepperItemRegister", "registerItem"], [0, "calciteStepperItemSelect", "updateItem"]]]);
function defineCustomElement$1() {
  if (typeof customElements === "undefined") {
    return;
  }
  const components = ["calcite-stepper"];
  components.forEach(tagName => { switch (tagName) {
    case "calcite-stepper":
      if (!customElements.get(tagName)) {
        customElements.define(tagName, Stepper);
      }
      break;
  } });
}
defineCustomElement$1();

const CalciteStepper = Stepper;
const defineCustomElement = defineCustomElement$1;

export { CalciteStepper, defineCustomElement };