package com.logship.mobile;

import android.app.DownloadManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;

import androidx.core.content.FileProvider;

import com.getcapacitor.JSObject;
import com.getcapacitor.Plugin;
import com.getcapacitor.PluginCall;
import com.getcapacitor.PluginMethod;
import com.getcapacitor.annotation.CapacitorPlugin;

import java.io.File;

@CapacitorPlugin(name = "AppUpdate")
public class AppUpdatePlugin extends Plugin {

    private DownloadManager downloadManager;
    private long downloadId = -1;
    private PluginCall pendingCall;

    @PluginMethod
    public void getAppVersion(PluginCall call) {
        try {
            PackageInfo pInfo = getContext().getPackageManager().getPackageInfo(getContext().getPackageName(), 0);
            JSObject ret = new JSObject();
            ret.put("versionName", pInfo.versionName);
            ret.put("versionCode", pInfo.versionCode);
            call.resolve(ret);
        } catch (PackageManager.NameNotFoundException e) {
            call.reject("Could not get app version", e);
        }
    }

    @PluginMethod
    public void downloadAndInstall(PluginCall call) {
        String apkUrl = call.getString("url");
        if (apkUrl == null || apkUrl.isEmpty()) {
            call.reject("URL is required");
            return;
        }

        try {
            // Delete old APK if exists
            File oldApk = new File(getContext().getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "app-update.apk");
            if (oldApk.exists()) {
                oldApk.delete();
            }

            downloadManager = (DownloadManager) getContext().getSystemService(Context.DOWNLOAD_SERVICE);

            DownloadManager.Request request = new DownloadManager.Request(Uri.parse(apkUrl));
            request.setTitle("LogShip Mobile Update");
            request.setDescription("Downloading update...");
            request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
            request.setDestinationInExternalFilesDir(getContext(), Environment.DIRECTORY_DOWNLOADS, "app-update.apk");
            request.setMimeType("application/vnd.android.package-archive");

            downloadId = downloadManager.enqueue(request);
            pendingCall = call;

            // Register receiver for download complete
            BroadcastReceiver onComplete = new BroadcastReceiver() {
                @Override
                public void onReceive(Context context, Intent intent) {
                    if (downloadId == intent.getLongExtra(DownloadManager.EXTRA_DOWNLOAD_ID, -1)) {
                        context.unregisterReceiver(this);
                        installApk();
                    }
                }
            };

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
                getContext().registerReceiver(onComplete, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE), Context.RECEIVER_EXPORTED);
            } else {
                getContext().registerReceiver(onComplete, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));
            }

        } catch (Exception e) {
            call.reject("Download failed: " + e.getMessage(), e);
        }
    }

    private void installApk() {
        try {
            File apkFile = new File(getContext().getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS), "app-update.apk");

            if (!apkFile.exists()) {
                if (pendingCall != null) {
                    pendingCall.reject("APK file not found");
                    pendingCall = null;
                }
                return;
            }

            Intent intent = new Intent(Intent.ACTION_VIEW);
            Uri apkUri;

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                apkUri = FileProvider.getUriForFile(getContext(),
                        getContext().getPackageName() + ".fileprovider", apkFile);
                intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
            } else {
                apkUri = Uri.fromFile(apkFile);
            }

            intent.setDataAndType(apkUri, "application/vnd.android.package-archive");
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

            getContext().startActivity(intent);

            if (pendingCall != null) {
                JSObject ret = new JSObject();
                ret.put("success", true);
                pendingCall.resolve(ret);
                pendingCall = null;
            }

        } catch (Exception e) {
            if (pendingCall != null) {
                pendingCall.reject("Install failed: " + e.getMessage(), e);
                pendingCall = null;
            }
        }
    }
}