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/*** module: node_modules/absol-tutor/js/engine/AsyncCommand.js ***/
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = exports.STATE_FINISH = void 0;

var _OOP = _interopRequireDefault(require("absol/src/HTML5/OOP"));

var _TState = _interopRequireDefault(require("./TState"));

var _noop = _interopRequireDefault(require("absol/src/Code/noop"));


var STATE_FINISH = 'finish';
/***
 * @extends TState
 * @param command
 * @constructor
 */

exports.STATE_FINISH = STATE_FINISH;

function StateFinish(command) {
  _TState.default.apply(this, arguments);
}

_OOP.default.mixClass(StateFinish, _TState.default);

StateFinish.prototype.onStart = function () {
  this.command.resolve();
};
/***
 *
 * @param {TProcess}process
 * @param {{}} args
 * @constructor
 */


function AsyncCommand(process, args) {
  this.process = process;
  this.args = args;
  this.state = null;
  this.promise = new Promise(function (resolve, reject) {
    this._resolveCb = resolve;
    this._rejectCb = reject;
  }.bind(this));
}

AsyncCommand.prototype.type = 'async';
AsyncCommand.prototype.argNames = [];
AsyncCommand.prototype.onStart = _noop.default;
AsyncCommand.prototype.onStop = _noop.default;

AsyncCommand.prototype.goto = function (state) {
  if (!this.state) return; // stop or not start, can not goto

  var clazz = this.stateClasses[state];
  this.state.onStop();
  this.state = new clazz(this);
  this.state.onStart();
};

AsyncCommand.prototype.resolve = function (result) {
  var stackIdx;

  if (this.state) {
    this.state.onStop();
    this.onStop();
    this.state = null;
    stackIdx = this.process.stack.indexOf(this);

    if (stackIdx >= 0) {
      this.process.stack.splice(stackIdx, 1);
    } else {
      throw new Error('Stack error: process.stack run incorrectly!');
    }
  }

  if (this._resolveCb) {
    this._resolveCb(result);

    this._rejectCb = null;
    this._resolveCb = null;
  }
};

AsyncCommand.prototype.reject = function (err) {
  if (this.state) {
    this.state.onStop();
    this.state = null;
    this.onStop();
  }

  if (this._rejectCb) {
    this._rejectCb(err);

    this._rejectCb = null;
    this._resolveCb = null;
  }
};

AsyncCommand.prototype.exec = function () {
  if (!this.state) {
    this.process.stack.push(this);
    this.onStart();
    this.state = new this.stateClasses.entry(this);
    this.state.onStart();
  }

  return this.promise;
};

AsyncCommand.prototype.stateClasses = {};
AsyncCommand.prototype.stateClasses.finish = StateFinish;
AsyncCommand.prototype.stateClasses.entry = StateFinish;
var _default = AsyncCommand;
exports.default = _default;