/*!
 * 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 { isPrimaryPointerButton } from "../../utils/dom";
import { isActivationKey } from "../../utils/key";
export default class PopoverManager {
  constructor() {
    // --------------------------------------------------------------------------
    //
    //  Private Properties
    //
    // --------------------------------------------------------------------------
    this.registeredElements = new Map();
    this.registeredElementCount = 0;
    // --------------------------------------------------------------------------
    //
    //  Private Methods
    //
    // --------------------------------------------------------------------------
    this.queryPopover = (composedPath) => {
      const { registeredElements } = this;
      const registeredElement = composedPath.find((pathEl) => registeredElements.has(pathEl));
      return registeredElements.get(registeredElement);
    };
    this.togglePopovers = (event) => {
      const composedPath = event.composedPath();
      const togglePopover = this.queryPopover(composedPath);
      if (togglePopover && !togglePopover.triggerDisabled) {
        togglePopover.toggle();
      }
      Array.from(this.registeredElements.values())
        .filter((popover) => popover !== togglePopover && popover.autoClose && popover.open && !composedPath.includes(popover))
        .forEach((popover) => popover.toggle(false));
    };
    this.keyHandler = (event) => {
      if (event.defaultPrevented || !isActivationKey(event.key)) {
        return;
      }
      this.togglePopovers(event);
    };
    this.clickHandler = (event) => {
      if (isPrimaryPointerButton(event)) {
        this.togglePopovers(event);
      }
    };
  }
  // --------------------------------------------------------------------------
  //
  //  Public Methods
  //
  // --------------------------------------------------------------------------
  registerElement(referenceEl, popover) {
    this.registeredElementCount++;
    this.registeredElements.set(referenceEl, popover);
    if (this.registeredElementCount === 1) {
      this.addListeners();
    }
  }
  unregisterElement(referenceEl) {
    if (this.registeredElements.delete(referenceEl)) {
      this.registeredElementCount--;
    }
    if (this.registeredElementCount === 0) {
      this.removeListeners();
    }
  }
  addListeners() {
    document.addEventListener("pointerdown", this.clickHandler, { capture: true });
    document.addEventListener("keydown", this.keyHandler, { capture: true });
  }
  removeListeners() {
    document.removeEventListener("pointerdown", this.clickHandler, { capture: true });
    document.removeEventListener("keydown", this.keyHandler, { capture: true });
  }
}