/*
 * (C) Copyright 2017 OpenVidu (http://openvidu.io/)
 *
 * 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 { OpenViduInternal } from '../OpenViduInternal/OpenViduInternal';

import { Session } from './Session';
import { Publisher } from './Publisher';
import { OpenViduError, OpenViduErrorName } from '../OpenViduInternal/OpenViduError';
import { Stream } from '../OpenViduInternal/Stream';
import { LocalRecorder } from '../OpenViduInternal/LocalRecorder';

import * as adapter from 'webrtc-adapter';
import * as screenSharing from '../ScreenSharing/Screen-Capturing.js';
import * as screenSharingAuto from '../ScreenSharing/Screen-Capturing-Auto.js';
import * as DetectRTC from '../KurentoUtils/DetectRTC';

if (window) {
    window["adapter"] = adapter;
}

export class OpenVidu {

    openVidu: OpenViduInternal;

    constructor() {
        this.openVidu = new OpenViduInternal();
        console.info("'OpenVidu' initialized");
    };

    initSession(apiKey: string, sessionId: string): Session;
    initSession(sessionId: string): Session;

    initSession(param1, param2?): any {
        if (typeof param2 == "string") {
            return new Session(this.openVidu.initSession(param2), this);
        } else {
            return new Session(this.openVidu.initSession(param1), this);
        }
    }

    initPublisher(parentId: string): Publisher;
    initPublisher(parentId: string, cameraOptions: any): Publisher;
    initPublisher(parentId: string, cameraOptions: any, callback: any): Publisher;

    initPublisher(parentId: string, cameraOptions?: any, callback?: Function): any {

        let publisher: Publisher;
        if (cameraOptions != null) {

            cameraOptions.audio = cameraOptions.audio != null ? cameraOptions.audio : true;
            cameraOptions.video = cameraOptions.video != null ? cameraOptions.video : true;

            if (!cameraOptions.screen) {

                // Webcam and/or microphone is being requested

                let cameraOptionsAux = {
                    sendAudio: cameraOptions.audio != null ? cameraOptions.audio : true,
                    sendVideo: cameraOptions.video != null ? cameraOptions.video : true,
                    activeAudio: cameraOptions.audioActive != null ? cameraOptions.audioActive : true,
                    activeVideo: cameraOptions.videoActive != null ? cameraOptions.videoActive : true,
                    mediaConstraints: this.openVidu.generateMediaConstraints(cameraOptions)
                };
                cameraOptions = cameraOptionsAux;

                publisher = new Publisher(this.openVidu.initPublisherTagged(parentId, cameraOptions, true, callback), parentId, false);
                console.info("'Publisher' initialized");

                return publisher;

            } else {

                // Screen share is being requested

                publisher = new Publisher(this.openVidu.initPublisherScreen(parentId, true, callback), parentId, true);
                if (DetectRTC.browser.name === 'Firefox' && DetectRTC.browser.version >= 52) {
                    screenSharingAuto.getScreenId((error, sourceId, screenConstraints) => {
                        cameraOptions = {
                            sendAudio: cameraOptions.audio,
                            sendVideo: cameraOptions.video,
                            activeAudio: cameraOptions.audioActive != null ? cameraOptions.audioActive : true,
                            activeVideo: cameraOptions.videoActive != null ? cameraOptions.videoActive : true,
                            mediaConstraints: {
                                video: screenConstraints.video,
                                audio: false
                            }
                        }

                        publisher.stream.configureScreenOptions(cameraOptions);
                        console.info("'Publisher' initialized");

                        publisher.stream.ee.emitEvent('can-request-screen');
                    });
                    return publisher;
                } else if (DetectRTC.browser.name === 'Chrome') {
                    // Screen is being requested

                    /*screenSharing.isChromeExtensionAvailable((availability) => {
                        switch (availability) {
                            case 'available':
                                console.warn('EXTENSION AVAILABLE!!!');
                                screenSharing.getScreenConstraints((error, screenConstraints) => {
                                    if (!error) {
                                        console.warn(screenConstraints);
                                    }
                                });
                                break;
                            case 'unavailable':
                                console.warn('EXTENSION NOT AVAILABLE!!!');
                                break;
                            case 'isFirefox':
                                console.warn('IT IS FIREFOX!!!');
                                screenSharing.getScreenConstraints((error, screenConstraints) => {
                                    if (!error) {
                                        console.warn(screenConstraints);
                                    }
                                });
                                break;
                        }
                    });*/
                    screenSharingAuto.getScreenId((error, sourceId, screenConstraints) => {

                        if (error === 'not-installed') {
                            let error = new OpenViduError(OpenViduErrorName.SCREEN_EXTENSION_NOT_INSTALLED, 'https://chrome.google.com/webstore/detail/screen-capturing/ajhifddimkapgcifgcodmmfdlknahffk');
                            console.error(error);
                            if (callback) callback(error);
                            return;
                        } else if (error === 'permission-denied') {
                            let error = new OpenViduError(OpenViduErrorName.SCREEN_CAPTURE_DENIED, 'You must allow access to one window of your desktop');
                            console.error(error);
                            if (callback) callback(error);
                            return;
                        }

                        cameraOptions = {
                            sendAudio: cameraOptions.audio != null ? cameraOptions.audio : true,
                            sendVideo: cameraOptions.video != null ? cameraOptions.video : true,
                            activeAudio: cameraOptions.audioActive != null ? cameraOptions.audioActive : true,
                            activeVideo: cameraOptions.videoActive != null ? cameraOptions.videoActive : true,
                            mediaConstraints: {
                                video: screenConstraints.video,
                                audio: false
                            }
                        }

                        publisher.stream.configureScreenOptions(cameraOptions);

                        publisher.stream.ee.emitEvent('can-request-screen');
                    }, (error) => {
                        console.error('getScreenId error', error);
                        return;
                    });
                    console.info("'Publisher' initialized");
                    return publisher;
                } else {
                    console.error('Screen sharing not supported on ' + DetectRTC.browser.name);
                    if (!!callback) callback(new OpenViduError(OpenViduErrorName.SCREEN_SHARING_NOT_SUPPORTED, 'Screen sharing not supported on ' + DetectRTC.browser.name + ' ' + DetectRTC.browser.version));
                }
            }
        } else {
            cameraOptions = {
                sendAudio: true,
                sendVideo: true,
                activeAudio: true,
                activeVideo: true,
                mediaConstraints: {
                    audio: true,
                    video: { width: { ideal: 1280 } }
                }
            }
            publisher = new Publisher(this.openVidu.initPublisherTagged(parentId, cameraOptions, true, callback), parentId, false);
            console.info("'Publisher' initialized");

            return publisher;
        }
    }

    reinitPublisher(publisher: Publisher): any {
        if (publisher.stream.typeOfVideo !== 'SCREEN') {
            publisher = new Publisher(this.openVidu.initPublisherTagged(publisher.stream.getParentId(), publisher.stream.outboundOptions, false), publisher.stream.getParentId(), false);
            console.info("'Publisher' initialized");
            return publisher;
        } else {
            publisher = new Publisher(this.openVidu.initPublisherScreen(publisher.stream.getParentId(), false), publisher.stream.getParentId(), true);
            if (DetectRTC.browser.name === 'Firefox' && DetectRTC.browser.version >= 52) {
                screenSharingAuto.getScreenId((error, sourceId, screenConstraints) => {

                    publisher.stream.outboundOptions.mediaConstraints.video = screenConstraints.video;
                    publisher.stream.configureScreenOptions(publisher.stream.outboundOptions);
                    console.info("'Publisher' initialized");

                    publisher.stream.ee.emitEvent('can-request-screen');
                });
                return publisher;
            } else if (DetectRTC.browser.name === 'Chrome') {
                screenSharingAuto.getScreenId((error, sourceId, screenConstraints) => {
                    if (error === 'not-installed') {
                        let error = new OpenViduError(OpenViduErrorName.SCREEN_EXTENSION_NOT_INSTALLED, 'https://chrome.google.com/webstore/detail/screen-capturing/ajhifddimkapgcifgcodmmfdlknahffk');
                        console.error(error);
                        return;
                    } else if (error === 'permission-denied') {
                        let error = new OpenViduError(OpenViduErrorName.SCREEN_CAPTURE_DENIED, 'You must allow access to one window of your desktop');
                        console.error(error);
                        return;
                    }
                    publisher.stream.outboundOptions.mediaConstraints.video = screenConstraints.video;
                    publisher.stream.configureScreenOptions(publisher.stream.outboundOptions);

                    publisher.stream.ee.emitEvent('can-request-screen');
                }, (error) => {
                    console.error('getScreenId error', error);
                    return;
                });
                console.info("'Publisher' initialized");
                return publisher;
            } else {
                console.error('Screen sharing not supported on ' + DetectRTC.browser.name);
            }
        }
    }

    checkSystemRequirements(): number {

        let defaultWebRTCSupport: boolean = DetectRTC.isWebRTCSupported;
        let browser = DetectRTC.browser.name;
        let version = DetectRTC.browser.version;

        if ((browser !== 'Chrome') && (browser !== 'Firefox') && (browser !== 'Opera') && (browser !== 'Safari')) {
            return 0;
        } else {
            return defaultWebRTCSupport ? 1 : 0;
        }
    }

    getDevices(callback) {
        navigator.mediaDevices.enumerateDevices().then((deviceInfos) => {
            callback(null, deviceInfos);
        }).catch((error) => {
            console.error("Error getting devices", error);
            callback(error, null);
        });
    }

    enableProdMode() {
        console.log = function () { };
        console.debug = function () { };
        console.info = function () { };
        console.warn = function () { };
    }

    initLocalRecorder(stream: Stream): LocalRecorder {
        return new LocalRecorder(stream);
    }

}