"use strict";

const conversions = require("webidl-conversions");
const utils = require("./utils.js");

const convertEventInit = require("./EventInit.js").convert;
const impl = utils.implSymbol;
const ctorRegistry = utils.ctorRegistrySymbol;

const interfaceName = "Event";

/**
 * When an interface-module that implements this interface as a mixin is loaded, it will append its own `.is()`
 * method into this array. It allows objects that directly implements *those* interfaces to be recognized as
 * implementing this mixin interface.
 */
exports._mixedIntoPredicates = [];
exports.is = function is(obj) {
  if (obj) {
    if (utils.hasOwn(obj, impl) && obj[impl] instanceof Impl.implementation) {
      return true;
    }
    for (const isMixedInto of exports._mixedIntoPredicates) {
      if (isMixedInto(obj)) {
        return true;
      }
    }
  }
  return false;
};
exports.isImpl = function isImpl(obj) {
  if (obj) {
    if (obj instanceof Impl.implementation) {
      return true;
    }

    const wrapper = utils.wrapperForImpl(obj);
    for (const isMixedInto of exports._mixedIntoPredicates) {
      if (isMixedInto(wrapper)) {
        return true;
      }
    }
  }
  return false;
};
exports.convert = function convert(obj, { context = "The provided value" } = {}) {
  if (exports.is(obj)) {
    return utils.implForWrapper(obj);
  }
  throw new TypeError(`${context} is not of type 'Event'.`);
};

exports.create = function create(globalObject, constructorArgs, privateData) {
  if (globalObject[ctorRegistry] === undefined) {
    throw new Error("Internal error: invalid global object");
  }

  const ctor = globalObject[ctorRegistry]["Event"];
  if (ctor === undefined) {
    throw new Error("Internal error: constructor Event is not installed on the passed global object");
  }

  let obj = Object.create(ctor.prototype);
  obj = exports.setup(obj, globalObject, constructorArgs, privateData);
  return obj;
};
exports.createImpl = function createImpl(globalObject, constructorArgs, privateData) {
  const obj = exports.create(globalObject, constructorArgs, privateData);
  return utils.implForWrapper(obj);
};
exports._internalSetup = function _internalSetup(obj) {
  Object.defineProperties(
    obj,
    Object.getOwnPropertyDescriptors({
      get isTrusted() {
        if (!this || !exports.is(this)) {
          throw new TypeError("Illegal invocation");
        }

        return obj[impl]["isTrusted"];
      }
    })
  );

  Object.defineProperties(obj, { isTrusted: { configurable: false } });
};
exports.setup = function setup(obj, globalObject, constructorArgs = [], privateData = {}) {
  privateData.wrapper = obj;

  exports._internalSetup(obj);
  Object.defineProperty(obj, impl, {
    value: new Impl.implementation(globalObject, constructorArgs, privateData),
    configurable: true
  });

  obj[impl][utils.wrapperSymbol] = obj;
  if (Impl.init) {
    Impl.init(obj[impl], privateData);
  }
  return obj;
};

exports.install = function install(globalObject) {
  class Event {
    constructor(type) {
      if (arguments.length < 1) {
        throw new TypeError(
          "Failed to construct 'Event': 1 argument required, but only " + arguments.length + " present."
        );
      }
      const args = [];
      {
        let curArg = arguments[0];
        curArg = conversions["DOMString"](curArg, { context: "Failed to construct 'Event': parameter 1" });
        args.push(curArg);
      }
      {
        let curArg = arguments[1];
        curArg = convertEventInit(curArg, { context: "Failed to construct 'Event': parameter 2" });
        args.push(curArg);
      }
      return exports.setup(Object.create(new.target.prototype), globalObject, args);
    }

    composedPath() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return utils.tryWrapperForImpl(this[impl].composedPath());
    }

    stopPropagation() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return this[impl].stopPropagation();
    }

    stopImmediatePropagation() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return this[impl].stopImmediatePropagation();
    }

    preventDefault() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return this[impl].preventDefault();
    }

    initEvent(type) {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      if (arguments.length < 1) {
        throw new TypeError(
          "Failed to execute 'initEvent' on 'Event': 1 argument required, but only " + arguments.length + " present."
        );
      }
      const args = [];
      {
        let curArg = arguments[0];
        curArg = conversions["DOMString"](curArg, { context: "Failed to execute 'initEvent' on 'Event': parameter 1" });
        args.push(curArg);
      }
      {
        let curArg = arguments[1];
        if (curArg !== undefined) {
          curArg = conversions["boolean"](curArg, { context: "Failed to execute 'initEvent' on 'Event': parameter 2" });
        } else {
          curArg = false;
        }
        args.push(curArg);
      }
      {
        let curArg = arguments[2];
        if (curArg !== undefined) {
          curArg = conversions["boolean"](curArg, { context: "Failed to execute 'initEvent' on 'Event': parameter 3" });
        } else {
          curArg = false;
        }
        args.push(curArg);
      }
      return this[impl].initEvent(...args);
    }

    get type() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return this[impl]["type"];
    }

    get target() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return utils.tryWrapperForImpl(this[impl]["target"]);
    }

    get srcElement() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return utils.tryWrapperForImpl(this[impl]["srcElement"]);
    }

    get currentTarget() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return utils.tryWrapperForImpl(this[impl]["currentTarget"]);
    }

    get eventPhase() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return this[impl]["eventPhase"];
    }

    get cancelBubble() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return this[impl]["cancelBubble"];
    }

    set cancelBubble(V) {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      V = conversions["boolean"](V, {
        context: "Failed to set the 'cancelBubble' property on 'Event': The provided value"
      });

      this[impl]["cancelBubble"] = V;
    }

    get bubbles() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return this[impl]["bubbles"];
    }

    get cancelable() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return this[impl]["cancelable"];
    }

    get returnValue() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return this[impl]["returnValue"];
    }

    set returnValue(V) {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      V = conversions["boolean"](V, {
        context: "Failed to set the 'returnValue' property on 'Event': The provided value"
      });

      this[impl]["returnValue"] = V;
    }

    get defaultPrevented() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return this[impl]["defaultPrevented"];
    }

    get composed() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return this[impl]["composed"];
    }

    get timeStamp() {
      if (!this || !exports.is(this)) {
        throw new TypeError("Illegal invocation");
      }

      return this[impl]["timeStamp"];
    }
  }
  Object.defineProperties(Event.prototype, {
    composedPath: { enumerable: true },
    stopPropagation: { enumerable: true },
    stopImmediatePropagation: { enumerable: true },
    preventDefault: { enumerable: true },
    initEvent: { enumerable: true },
    type: { enumerable: true },
    target: { enumerable: true },
    srcElement: { enumerable: true },
    currentTarget: { enumerable: true },
    eventPhase: { enumerable: true },
    cancelBubble: { enumerable: true },
    bubbles: { enumerable: true },
    cancelable: { enumerable: true },
    returnValue: { enumerable: true },
    defaultPrevented: { enumerable: true },
    composed: { enumerable: true },
    timeStamp: { enumerable: true },
    [Symbol.toStringTag]: { value: "Event", configurable: true },
    NONE: { value: 0, enumerable: true },
    CAPTURING_PHASE: { value: 1, enumerable: true },
    AT_TARGET: { value: 2, enumerable: true },
    BUBBLING_PHASE: { value: 3, enumerable: true }
  });
  Object.defineProperties(Event, {
    NONE: { value: 0, enumerable: true },
    CAPTURING_PHASE: { value: 1, enumerable: true },
    AT_TARGET: { value: 2, enumerable: true },
    BUBBLING_PHASE: { value: 3, enumerable: true }
  });
  if (globalObject[ctorRegistry] === undefined) {
    globalObject[ctorRegistry] = Object.create(null);
  }
  globalObject[ctorRegistry][interfaceName] = Event;

  Object.defineProperty(globalObject, interfaceName, {
    configurable: true,
    writable: true,
    value: Event
  });
};

const Impl = require("../events/Event-impl.js");