import RegionBehaviorType from "./base.mjs";
import {REGION_EVENTS} from "../../../common/constants.mjs";
import * as fields from "../../../common/data/fields.mjs";

/**
 * The data model for a behavior that toggles Region Behaviors when one of the subscribed events occurs.
 *
 * @property {Set<string>} enable     The Region Behavior UUIDs that are enabled.
 * @property {Set<string>} disable    The Region Behavior UUIDs that are disabled.
 */
export default class ToggleBehaviorRegionBehaviorType extends RegionBehaviorType {

  /** @override */
  static LOCALIZATION_PREFIXES = ["BEHAVIOR.TYPES.toggleBehavior", "BEHAVIOR.TYPES.base"];

  /* ---------------------------------------- */

  /** @override */
  static defineSchema() {
    return {
      events: this._createEventsField({events: [
        REGION_EVENTS.TOKEN_ENTER,
        REGION_EVENTS.TOKEN_EXIT,
        REGION_EVENTS.TOKEN_MOVE,
        REGION_EVENTS.TOKEN_MOVE_IN,
        REGION_EVENTS.TOKEN_MOVE_OUT,
        REGION_EVENTS.TOKEN_TURN_START,
        REGION_EVENTS.TOKEN_TURN_END,
        REGION_EVENTS.TOKEN_ROUND_START,
        REGION_EVENTS.TOKEN_ROUND_END
      ]}),
      enable: new fields.SetField(new fields.DocumentUUIDField({type: "RegionBehavior"})),
      disable: new fields.SetField(new fields.DocumentUUIDField({type: "RegionBehavior"}))
    };
  }

  /* -------------------------------------------- */

  /** @override */
  static validateJoint(data) {
    if ( new Set(data.enable).intersection(new Set(data.disable)).size !== 0 ) {
      throw new Error("A RegionBehavior cannot be both enabled and disabled");
    }
  }

  /* ---------------------------------------- */

  /** @override */
  async _handleRegionEvent(event) {
    if ( !game.users.activeGM?.isSelf ) return;
    const toggle = async (uuid, disabled) => {
      const behavior = await fromUuid(uuid);
      if ( !(behavior instanceof RegionBehavior) ) {
        console.error(`${uuid} does not exist`);
        return;
      }
      await behavior.update({disabled});
    }
    await Promise.allSettled(this.disable.map(uuid => toggle(uuid, true)));
    await Promise.allSettled(this.enable.map(uuid => toggle(uuid, false)));
  }
}