package com.localtransfer;

import android.Manifest;
import android.app.Activity;
import android.app.Notification;
import android.app.PendingIntent;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Toast;

import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import androidx.core.app.ActivityCompat;
import androidx.core.app.NotificationManagerCompat;
import androidx.core.content.ContextCompat;
import androidx.preference.PreferenceManager;
import androidx.viewpager.widget.ViewPager;

import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.google.android.material.tabs.TabLayout;

import java.io.File;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

    public static final int REQUEST_ID_CHOOSE_FILES = 2002;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Toolbar toolbar = findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        SectionsPagerAdapter sectionsPagerAdapter = new SectionsPagerAdapter(this, getSupportFragmentManager());
        ViewPager viewPager = findViewById(R.id.view_pager);
        viewPager.setAdapter(sectionsPagerAdapter);
        TabLayout tabs = findViewById(R.id.tabs);
        tabs.setupWithViewPager(viewPager);
        FloatingActionButton fab = findViewById(R.id.flotUpload);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent()
                        .setType("*/*")
                        .setAction(Intent.ACTION_GET_CONTENT)
                        .putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);

                startActivityForResult(Intent.createChooser(intent, "Select a file"), REQUEST_ID_CHOOSE_FILES);

            }
        });

        if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.Q) {
            checkAndRequestPermissions();
        }


        Transfer.notifBuilder = new Notification.Builder(this);
        Transfer.notifiManager = NotificationManagerCompat.from(this);
        Transfer.inflater = (LayoutInflater) this.getSystemService(this.LAYOUT_INFLATER_SERVICE);
        Transfer.resolver = this.getContentResolver();

        Intent notificationIntent = new Intent(this, MainActivity.class);
        Transfer.pendingIntent = PendingIntent.getActivity(this,0, notificationIntent, 0);

        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);

        if(prefs.getString("host", null) == null)
            prefs.edit()
                    .putString("host", getString(R.string.server_host_def))
                    .putString("port", getString(R.string.server_port_def))
                    .putString("root", getString(R.string.server_root_def))
                    .putString("shared_storage", getString(R.string.shared_storage_def))
                    .putBoolean("use_shared_storage", false)
                    .apply();

        Transfer.parameter(this);
        Transfer.activity = this;

        Intent intent = getIntent();
        String action = intent.getAction();
        String type = intent.getType();

        if (Intent.ACTION_SEND.equals(action) && type != null) {
            viewPager.setCurrentItem(2);
            if ("text/plain".equals(type)) {
                String sharedText = intent.getStringExtra(Intent.EXTRA_TEXT);
                UploadFile.handleSendText(sharedText);
            } else {
                Uri uri = intent.getParcelableExtra(Intent.EXTRA_STREAM);
                UploadFile.handleSendFile(uri);
            }
        } else if (Intent.ACTION_SEND_MULTIPLE.equals(action) && type != null) {
            viewPager.setCurrentItem(2);
            ArrayList<Uri> fileUris = intent.getParcelableArrayListExtra(Intent.EXTRA_STREAM);
            int nbItem = fileUris.size();
            Toast.makeText(this, "You select " + nbItem + " files", Toast.LENGTH_SHORT).show();
            if (fileUris != null)
                for(Uri uri : fileUris) UploadFile.handleSendFile(uri);
        }

    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        Log.d("RequestCode", String.valueOf(requestCode));
        if (requestCode == REQUEST_ID_CHOOSE_FILES && resultCode == Activity.RESULT_OK) {
            String type = data.getType();

            ViewPager viewPager = this.findViewById(R.id.view_pager);
            viewPager.setCurrentItem(2);


            if (type != null) {
                String sharedText = data.getStringExtra(Intent.EXTRA_TEXT);
                UploadFile.handleSendText(sharedText);
            }
            else {
                ArrayList<Uri> fileUris = new ArrayList<>();
                if (data.getClipData() != null) { // Checking for selection multiple files
                    int nbItem = data.getClipData().getItemCount();
                    Toast.makeText(this, "You select " + nbItem + " files", Toast.LENGTH_SHORT).show();
                    for (int i = 0; i < nbItem; i++) {
                        Uri uri = data.getClipData().getItemAt(i).getUri();
                        fileUris.add(uri);
                    }
                } else {
                    Uri uri = data.getData(); //The uri with the location of the file
                    fileUris.add(uri);
                }
                for (Uri uri : fileUris) {
                    UploadFile.handleSendFile(uri);
                }
            }
        }
    }

    @Override
    public void onResume(){
        super.onResume();

        Transfer.app_started = true;
    }

    @Override
    public void onPause(){
        super.onPause();

        Transfer.app_started = false;
    }

    @Override
    public void onDestroy() {
        super.onDestroy();

        File dir = getCacheDir();
        deleteDirContent(dir);
    }

    private static void deleteDirContent(File dir) {
        if (dir != null && dir.isDirectory()) {
            String[] children = dir.list();
            for (int i = 0; i < children.length; i++) {
                File file = new File(dir, children[i]);
                if (file.isFile())
                    file.delete();
            }
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        switch (id) {
            case R.id.action_settings:
                Intent settings = new Intent(this, SettingsActivity.class);
                startActivity(settings);
                break;
            case R.id.action_folder:
                String save_location = Environment.getExternalStorageDirectory() + "/" + Transfer.shared_storage;
                Uri selectedUri = Uri.parse(save_location.toString());
                boolean intentSuccess = false;
                try {
                    Intent intent = new Intent(Intent.ACTION_VIEW);
                    intent.setDataAndType(selectedUri, "resource/folder");
                    intent.setFlags(Intent.FLAG_ACTIVITY_LAUNCH_ADJACENT |
                            Intent.FLAG_ACTIVITY_NEW_TASK |
                            Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
                    startActivity(intent);
                    intentSuccess = true;
                } catch (ActivityNotFoundException e) {
                    e.printStackTrace();
                    intentSuccess = false;
                }
                if( ! intentSuccess && isPackageInstalled("com.sec.android.app.myfiles", getPackageManager())){

                    Intent intent = getPackageManager().getLaunchIntentForPackage("com.sec.android.app.myfiles");
                    intent.setData(selectedUri);
                    startActivity(intent);
                }
                else if(! intentSuccess)
                    Toast.makeText(this, "No file Manager", Toast.LENGTH_SHORT).show();
                break;
        }

        return super.onOptionsItemSelected(item);
    }

    public static final int REQUEST_ID_READ_EXTERNAL_STORAGE = 2001;

    private  boolean checkAndRequestPermissions() {

        if (ContextCompat.checkSelfPermission(
                this, Manifest.permission.READ_EXTERNAL_STORAGE) ==
                PackageManager.PERMISSION_GRANTED) {
            Log.d("READ_EXTERNAL_STORAGE", "already granted");
        }
        else {
            ActivityCompat.requestPermissions(this, new String[] {android.Manifest.permission.READ_EXTERNAL_STORAGE}, REQUEST_ID_READ_EXTERNAL_STORAGE);
        }
        return true;
    }

    @Override
    public void onRequestPermissionsResult(int requestCode,
                                           String permissions[],
                                           int[] grantResults) {
        switch (requestCode) {
            case REQUEST_ID_READ_EXTERNAL_STORAGE:
                if (grantResults.length > 0 &&
                        grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    Log.d("READ_EXTERNAL_STORAGE", "granted");
                }  else {
                    Log.d("READ_EXTERNAL_STORAGE", "No granted");
                    System.exit(1);
                }
                return;
        }
    }

    private boolean isPackageInstalled(String packageName, PackageManager packageManager) {
        try {
            packageManager.getPackageInfo(packageName, 0);
            return true;
        } catch (PackageManager.NameNotFoundException e) {
            return false;
        }
    }
}