/*
 * Copyright 2014 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { ASXML } from "./xml";
import { release, warning, somewhatImplemented } from "../../base/utilities/Debug";
import { axCoerceString } from "../run/axCoerceString";
import { defineNonEnumerableProperty } from "../../base/utilities/ObjectUtilities";
import { ASObject } from "../nat/ASObject";
import { initializeBuiltins } from "../nat/initializeBuiltins";
import { ClipboardService } from "../../base/utilities/ClipboardService";

export class IME extends ASObject /* flash.events.EventDispatcher */ {
  constructor () {
    super();
  }
  static get enabled(): boolean {
    release || release || somewhatImplemented("public flash.system.IME::static get enabled");
    return false;
  }
  static set enabled(enabled: boolean) {
    release || release || somewhatImplemented("public flash.system.IME::static set enabled");
    enabled = !!enabled;
  }
  static get conversionMode(): string {
    release || somewhatImplemented("public flash.system.IME::static get conversionMode");
    return 'UNKNOWN';
  }
  static set conversionMode(mode: string) {
    mode = axCoerceString(mode);
    release || somewhatImplemented("public flash.system.IME::static set conversionMode");
  }
  static setCompositionString(composition: string): void {
    composition = axCoerceString(composition);
    release || somewhatImplemented("public flash.system.IME::static setCompositionString");
  }
  static doConversion(): void {
    release || somewhatImplemented("public flash.system.IME::static doConversion");
  }
  static compositionSelectionChanged(start: number /*int*/, end: number /*int*/): void {
    start = start | 0; end = end | 0;
    release || somewhatImplemented("public flash.system.IME::static compositionSelectionChanged");
  }
  static compositionAbandoned(): void {
    release || somewhatImplemented("public flash.system.IME::static compositionAbandoned");
  }
  static get isSupported(): boolean {
    release || somewhatImplemented("public flash.system.IME::static get isSupported");
    return false;
  }
}

export class System extends ASObject {
  private static _useCodePage: boolean = false;

  static classInitializer() {
    defineNonEnumerableProperty(this, '$Bgargv', this.sec.createArray([]));
  }

  static get ime(): IME {
    release || somewhatImplemented("public flash.system.System::get ime");
    return null;
  }

  static setClipboard(string: string): void {
    string = axCoerceString(string);
    if (ClipboardService === null) {
      warning('setClipboard is only available in the Firefox extension');
      return;
    }
    ClipboardService.setClipboard(string);
  }

  static get totalMemoryNumber(): number {
    release || somewhatImplemented("public flash.system.System::get totalMemoryNumber");
    return 1024 * 1024 * 2;
  }

  static get freeMemory(): number {
    release || somewhatImplemented("public flash.system.System::get freeMemory");
    return 1024 * 1024;
  }

  static get privateMemory(): number {
    release || somewhatImplemented("public flash.system.System::get privateMemory");
    return 1024*1024;
  }

  static get useCodePage(): boolean {
    return this._useCodePage;
  }

  static set useCodePage(value: boolean) {
    release || somewhatImplemented("public flash.system.System::set useCodePage");
    this._useCodePage = !!value;
  }

  static get vmVersion(): string {
    return "1.0 Shumway - Mozilla Research";
  }

  static pause(): void {
    // Debugging-only function we can just ignore.
  }

  static resume(): void {
    // Debugging-only function we can just ignore.
  }

  static exit(code: number /*uint*/): void {
    // Debugging-only function we can just ignore.
  }

  static gc(): void {
    // Debugging-only function we can just ignore.
  }

  static pauseForGCIfCollectionImminent(imminence: number = 0.75): void {
    // Not gonna happen, probably ever.
  }

  static disposeXML(node: ASXML): void {
    // We have a cycle collector, so we can ignore this. \o/
  }

  static get swfVersion(): number {
    return 19;
  }

  static get apiVersion(): number {
    return 26;
  }

  static getArgv(): any [] {
    return [];
  }

  static getRunmode(): string {
    return "mixed";
  }
}

export var OriginalSystem = System;
export function initSystem(){
  // Do this here temporarily until we find a nicer place.
  initializeBuiltins();
}