using System;
using System.Collections.Generic;
using UnityEngine;

namespace Ubisoft.Hotel.Device
{
    public class NativeDeviceAndroid : INativeDevice
    {
        private static readonly HashSet<string> LEGIT_INSTALLERS = new HashSet<string>
        {
            // Google Play
            "com.android.vending",

            // Old Google Play
            "com.google.android.feedback",

            // Amazon
            "com.amazon.venezia",

            // Samsung Store
            "com.sec.android.app.samsungapps"
        };

        public long GetFreeDiskSpace(string path)
        {
            using (AndroidJavaObject statsFs = new AndroidJavaObject("android.os.StatFs", path))
            {
                return statsFs.Call<long>("getBlockSizeLong") * statsFs.Call<long>("getAvailableBlocksLong");
            }
        }

        public AdvertisingInfo GetAdvertisingId()
        {
            AdvertisingInfo adInfo = new AdvertisingInfo();

            try
            {
                AndroidJavaClass unityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
                AndroidJavaObject currentActivity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity");

                // We don't use androidX lib (androidx.ads.identifier) because it's still in alpha version (androidx.ads:ads-identifier:1.0.0-alpha04)
                AndroidJavaClass adClient = new AndroidJavaClass("com.google.android.gms.ads.identifier.AdvertisingIdClient");

                bool isAvailable = true; // For some reason this always returns false: adClient.CallStatic<bool>("isAdvertisingIdProviderAvailable", currentActivity);

                if (isAvailable)
                {
                    AndroidJavaObject androidAdInfo = adClient.CallStatic<AndroidJavaObject>("getAdvertisingIdInfo", currentActivity);

                    // When the value returned by isLimitAdTrackingEnabled() is 'true', getId() returns '00000000-0000-0000-0000-000000000000' (starting from Android 12)
                    bool trackingEnabled = !androidAdInfo.Call<bool>("isLimitAdTrackingEnabled");
                    string advertisingId = androidAdInfo.Call<string>("getId").ToString();

                    DeviceLogger.Channel.LogInformation($"AdvertisingID {advertisingId} - TrackingEnabled {trackingEnabled}");

                    adInfo.RequestSuccess = true;
                    adInfo.AdvertisingId = advertisingId;
                    adInfo.TrackingEnabled = trackingEnabled;

                }
                else
                {
                    DeviceLogger.Channel.LogInformation("AdvertisingID is not available");
                }
            }
            catch (Exception e)
            {
                DeviceLogger.Channel.LogWarning($"Error retrieving AdvertisingID: {e.Message}");
            }

            return adInfo;
        }

        public void OpenAppInStore()
        {
            OpenAppInStore(Application.identifier);
        }

        public void OpenAppInStore(string appId)
        {
            Application.OpenURL($"market://details?id={appId}");
        }

        public bool IsLegitInstallation()
        {
            try
            {
                bool returnValue = false;
                string installer = null;

                // Check which apk (software) has installed this build/apk (Play Store or sideloaded or ...)
                AndroidJavaClass unityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
                AndroidJavaObject activity = unityPlayer.GetStatic<AndroidJavaObject>("currentActivity");
                AndroidJavaObject context = activity.Call<AndroidJavaObject>("getApplicationContext");
                if (context == null)
                {
                    DeviceLogger.Channel.LogError($"IsLegitInstallation: context is null");
                }
                else
                {
                    AndroidJavaObject packageManager = context.Call<AndroidJavaObject>("getPackageManager");
                    if (packageManager == null)
                    {
                        DeviceLogger.Channel.LogError($"IsLegitInstallation: packageManager is null");
                    }
                    else
                    {
                        string pckName = context.Call<string>("getPackageName");
                        if (string.IsNullOrEmpty(pckName))
                        {
                            DeviceLogger.Channel.LogError($"IsLegitInstallation: packageName is null");
                        }
                        else
                        {
                            installer = packageManager.Call<string>("getInstallerPackageName", pckName);
                        }
                    }

                    returnValue = !string.IsNullOrEmpty(installer) && LEGIT_INSTALLERS.Contains(installer);
                }

                DeviceLogger.Channel.LogInformation($"IsLegitInstallation installer: {installer} isLegit: {returnValue}");

                return returnValue;
            }
            catch (Exception e)
            {
                DeviceLogger.Channel.LogWarning($"Error retrieving IsLegitInstallation: {e.Message}\n{e.StackTrace}");
                return false;
            }
        }
    }
}