/*
 * Copyright (c) 2017 Samsung Electronics Co., Ltd
 *
 * Licensed under the Flora License, Version 1.1 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://floralicense.org/license/
 *
 * 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.
 */

using Tizen.Applications;
using LibTVRefCommonPortable.Utils;
using LibTVRefCommonTizen.Ports;
using Tizen.Xamarin.Forms.Extension.Renderer;
using CoreApp;
using System;

namespace TVHome.TizenTV
{
    /// <summary>
    /// TV Home application main entry point
    /// </summary>
    class Program : global::Xamarin.Forms.Platform.Tizen.FormsApplication
    {
        /// <summary>
        /// An interface for the  platform notification
        /// </summary>
        IPlatformNotification notification;
        /// <summary>
        /// A port for handling Window APIs
        /// </summary>
        WindowPort windowPort;

        /// <summary>
        /// A method will be called when application is created
        /// </summary>
        protected override void OnCreate()
        {
            base.OnCreate();

            FileSystemPort.AppDataStroagePath = DirectoryInfo.Data;
            FileSystemPort.AppResourceStoragePath = DirectoryInfo.Resource;
            string platformShareStoragePath = "/opt/usr/home/owner/share/";
            FileSystemPort.PlatformShareStroagePath = platformShareStoragePath;

            var app = new App(MainWindow.ScreenSize.Width,
                MainWindow.ScreenSize.Height,
                MainWindow.ScreenDpi.X,
                ElmSharp.Elementary.GetScale());

            notification = app;

            DbgPort.D("-----------------------------------");
            DbgPort.D("Home application is being loaded...");
            DbgPort.D("-----------------------------------");
            LoadApplication(app);

            PackageManagerPort.RegisterCallbacks(notification);

            MainWindow.KeyUp += KeyUpListener;
            MainWindow.Alpha = true;

            windowPort = new WindowPort();
            windowPort.MainWindow = MainWindow;

            /// Grab key events
            MainWindow.KeyGrab(ElmSharp.EvasKeyEventArgs.PlatformHomeButtonName, true);
            MainWindow.KeyGrab(ElmSharp.EvasKeyEventArgs.PlatformMenuButtonName, true);
            MainWindow.KeyGrab("XF86Info", true);
            MainWindow.KeyGrab("Up", false);
            MainWindow.KeyGrab("Down", false);
            MainWindow.KeyGrab("Left", false);
            MainWindow.KeyGrab("Right", false);
            windowPort.SetKeyGrabExclusively(ElmSharp.EvasKeyEventArgs.PlatformHomeButtonName);

            /// Sniper
            try
            {
                Sniper sniper = new Sniper((IntPtr)MainWindow, platformShareStoragePath, 960, 540);
                sniper.UpdatedEvent += OnScreenUpdate;
                sniper.AddRemoveEvent += SniperAddRemoveEvent;
                sniper.SkipUpdateEvent += SniperSkipUpdateEvent;
                sniper.StartMonitor();
            }
            catch (SniperException e)
            {
                DbgPort.E("Failed to create sniper object : " + e.Message);
            }
        }

        private void SniperSkipUpdateEvent(object sender, Sniper.Event e)
        {
            DbgPort.D(" [Sniper SkipUpdateEvent] : " + e.Info);
            (sender as Sniper).SkipUpdateFlag = true;
        }

        private void SniperAddRemoveEvent(object sender, Sniper.Event e)
        {
            DbgPort.D(" [Sniper SniperAddRemoveEvent] : " + e.Info);
        }

        private void OnScreenUpdate(object sender, Sniper.Event e)
        {
            DbgPort.D(" [Sniper OnScreenUpdate] : " + e.Info);
        }

        /// <summary>
        /// A method will be called when application receives KeyUp event
        /// </summary>
        /// <param name="sender">The source of the event</param>
        /// <param name="e">A EvasKey event's argument</param>
        private void KeyUpListener(object sender, ElmSharp.EvasKeyEventArgs e)
        {
            DbgPort.D("Key Pressed :" + e.KeyName);
            if (e.KeyName.CompareTo(ElmSharp.EvasKeyEventArgs.PlatformHomeButtonName) == 0)
            {
                if (notification != null)
                {
                    notification.OnHomeKeyPressed();
                }
            }
            else if (e.KeyName.CompareTo(ElmSharp.EvasKeyEventArgs.PlatformMenuButtonName) == 0 ||
                e.KeyName.CompareTo("XF86Info") == 0)
            {
                if (notification != null)
                {
                    notification.OnMenuKeyPressed();
                }
            }
            else if (e.KeyName.Equals("Up") || e.KeyName.Equals("Down") || e.KeyName.Equals("Left") || e.KeyName.Equals("Right"))
            {
                if (notification != null)
                {
                    notification.OnNavigationKeyPressed(e.KeyName);
                }
            }
        }

        /// <summary>
        /// A method will be called when application is terminated
        /// </summary>
        protected override void OnTerminate()
        {
            base.OnTerminate();

            notification = null;
            PackageManagerPort.UnregisterCallbacks();
            MainWindow.KeyUngrab(ElmSharp.EvasKeyEventArgs.PlatformHomeButtonName);
            MainWindow.KeyUngrab(ElmSharp.EvasKeyEventArgs.PlatformMenuButtonName);
            MainWindow.KeyUngrab("XF86Info");
            MainWindow.KeyUngrab("Up");
            MainWindow.KeyUngrab("Down");
            MainWindow.KeyUngrab("Left");
            MainWindow.KeyUngrab("Right");
        }

        /// <summary>
        /// A method will be called when application receives app control
        /// </summary>
        /// <param name="e">AppControl event argument</param>
        protected override void OnAppControlReceived(AppControlReceivedEventArgs e)
        {
            if (AppControlPort.AppAddedNotifyOperation.CompareTo(e.ReceivedAppControl.Operation) == 0)
            {
                DbgPort.D("App Added Notification");
                string pinnedApp;
                if (e.ReceivedAppControl.ExtraData.TryGet(AppControlPort.KeyAddedAppID, out pinnedApp))
                {
                    notification.OnAppPinnedNotificationReceived(pinnedApp);
                }
                else
                {
                    notification.OnAppPinnedNotificationReceived("");
                }
            }
        }

        /// <summary>
        /// The entry point for the application
        /// </summary>
        /// <param name="args">A list of command line arguments</param>
        static void Main(string[] args)
        {
            var app = new Program();

            DbgPort.Prefix = "Home";

            global::Xamarin.Forms.DependencyService.Register<DbgPort>();
            global::Xamarin.Forms.DependencyService.Register<AppControlPort>();
            global::Xamarin.Forms.DependencyService.Register<PackageManagerPort>();
            global::Xamarin.Forms.DependencyService.Register<FileSystemWatcherPort>();
            global::Xamarin.Forms.DependencyService.Register<ApplicationManagerPort>();
            global::Xamarin.Forms.DependencyService.Register<FileSystemPort>();
            global::Xamarin.Forms.DependencyService.Register<WindowPort>();
            global::Xamarin.Forms.DependencyService.Register<SystemSettingsPort>();
            global::Xamarin.Forms.DependencyService.Register<MediaContentPort>();
            TizenFormsExtension.Init();
            global::Xamarin.Forms.Platform.Tizen.Forms.Init(app);
            app.Run(args);
        }
    }
}