package com.example.rahul.mychatapp;

import android.app.ProgressDialog;
import android.content.Intent;
import android.net.Uri;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
import com.google.firebase.storage.FirebaseStorage;
import com.google.firebase.storage.StorageReference;
import com.google.firebase.storage.UploadTask;
import com.squareup.picasso.Picasso;
import com.theartofdev.edmodo.cropper.CropImage;

import java.util.Random;

import de.hdodenhof.circleimageview.CircleImageView;

public class AccountSettingsActivity extends AppCompatActivity {

    private TextView displayName;
    private TextView userStatus;
    private CircleImageView mImage;

    private Button changeStatusButton;
    private Button changeImageButton;

    //integer variable for galary intent
    private static final int GALLARY_PICK = 1;

    //firebase database reference
    private DatabaseReference accountDb;

    //firebase user
    private FirebaseUser user;

    //firebase storage reference
    private StorageReference imageReference;

    //for progress dialog
    private ProgressDialog dialog;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_account_settings);

        //java object for xml components
        displayName = (TextView) findViewById(R.id.displayName_setting);
        userStatus = (TextView) findViewById(R.id.status_setting);
        mImage = (CircleImageView) findViewById(R.id.settings_image);

        //firebase storage reference
        imageReference = FirebaseStorage.getInstance().getReference();

        //firebase user
        user = FirebaseAuth.getInstance().getCurrentUser();

        //retrieving userid
        String uid = user.getUid();

        //firebase database reference
        accountDb = FirebaseDatabase.getInstance().getReference().child("Users").child(uid);

        //get data from the firebase database
        accountDb.addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {

                //getting values form database and storing it in local variables
                String name = dataSnapshot.child("name").getValue().toString();
                String image = dataSnapshot.child("image").getValue().toString();
                String status = dataSnapshot.child("status").getValue().toString();
                String thumbnail = dataSnapshot.child("thumbnail").getValue().toString();

                //setting the retrieved values from database into xml components
                displayName.setText(name);
                userStatus.setText(status);

                //showing the image in circle image view with the help of picasso library
                Picasso.with(AccountSettingsActivity.this).load(image).into(mImage);
            }

            @Override
            public void onCancelled(DatabaseError databaseError) {

            }
        });


        //java object for xml button
        changeStatusButton = (Button) findViewById(R.id.changeStatusButton);

        //on button click
        changeStatusButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                //getting the status from status field to send it to status activity
                String statusToPass = userStatus.getText().toString();

                //making intent to status activity
                Intent intent = new Intent(AccountSettingsActivity.this, StatusActivity.class);
                intent.putExtra("statusValue", statusToPass);   //sending data from current intent to different intent
                startActivity(intent);
            }
        });

        //java object for changeImageButton xml button
        changeImageButton = (Button) findViewById(R.id.changeImageButton);

        //on change image button click
        changeImageButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                //making a galary intent
                Intent galleryIntent = new Intent();
                galleryIntent.setType("image/*");
                galleryIntent.setAction(Intent.ACTION_GET_CONTENT);
                startActivityForResult(Intent.createChooser(galleryIntent, "SELECT IMAGE"), GALLARY_PICK);
            }
        });
    }


    //this method works while setting image
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == GALLARY_PICK && resultCode == RESULT_OK) {
            Uri imageUri = data.getData();
            CropImage.activity(imageUri).setAspectRatio(1,1).start(this);
        }

        if (requestCode == CropImage.CROP_IMAGE_ACTIVITY_REQUEST_CODE) {
            CropImage.ActivityResult result = CropImage.getActivityResult(data);
            if (resultCode == RESULT_OK) {

                //dialog bar
                dialog = new ProgressDialog(AccountSettingsActivity.this);
                dialog.setTitle("Uploading");
                dialog.setMessage("Please Wait");
                dialog.setCanceledOnTouchOutside(false);
                dialog.show();

                Uri resultUri = result.getUri();

                //getting the userId of user so that we can store image name with UID
                String uid = user.getUid();

                //storage reference to store the profile pictures of user
                StorageReference reference = imageReference.child("profile_images").child(uid + ".jpg");
                reference.putFile(resultUri).addOnCompleteListener(new OnCompleteListener<UploadTask.TaskSnapshot>() {
                    @Override
                    public void onComplete(@NonNull Task<UploadTask.TaskSnapshot> task) {
                        if (task.isSuccessful()) {

                            //if the image is successfully uploaded store it in database
                            String imageUrl = String.valueOf(task.getResult().getDownloadUrl());
                            accountDb.child("image").setValue(imageUrl).addOnCompleteListener(new OnCompleteListener<Void>() {
                                @Override
                                public void onComplete(@NonNull Task<Void> task) {
                                    if (task.isSuccessful()) {
                                        dialog.dismiss();
                                        Toast.makeText(AccountSettingsActivity.this,"Picture Updated Successfully", Toast.LENGTH_LONG).show();
                                    }else{
                                        dialog.dismiss();
                                        Toast.makeText(AccountSettingsActivity.this, task.getException().getLocalizedMessage(), Toast.LENGTH_LONG);
                                    }
                                }
                            });

                        }else{
                            Toast.makeText(AccountSettingsActivity.this, task.getException().getLocalizedMessage(), Toast.LENGTH_LONG).show();
                            dialog.dismiss();
                        }
                    }
                });

            } else if (resultCode == CropImage.CROP_IMAGE_ACTIVITY_RESULT_ERROR_CODE) {
                Exception error = result.getError();
            }
        }
    }

}