/*
 * Copyright 2013-2017 Amazon.com,
 * Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Amazon Software License (the "License").
 * You may not use this file except in compliance with the
 * License. A copy of the License is located at
 *
 *      http://aws.amazon.com/asl/
 *
 * or in the "license" file accompanying this file. This file is
 * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, express or implied. See the License
 * for the specific language governing permissions and
 * limitations under the License.
 */

package com.amazonaws.youruserpools;

import android.app.DownloadManager;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.support.design.widget.NavigationView;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoDevice;
import com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUser;
import com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserAttributes;
import com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserCodeDeliveryDetails;
import com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserDetails;
import com.amazonaws.mobileconnectors.cognitoidentityprovider.CognitoUserSession;
import com.amazonaws.mobileconnectors.cognitoidentityprovider.handlers.GenericHandler;
import com.amazonaws.mobileconnectors.cognitoidentityprovider.handlers.GetDetailsHandler;
import com.amazonaws.mobileconnectors.cognitoidentityprovider.handlers.UpdateAttributesHandler;
import com.amazonaws.youruserpools.CognitoYourUserPoolsDemo.R;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonArrayRequest;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.List;

public class UserActivity extends AppCompatActivity {
    private final String TAG="UserActivity";

    private NavigationView nDrawer;
    private DrawerLayout mDrawer;
    private ActionBarDrawerToggle mDrawerToggle;
    private Toolbar toolbar;
    private AlertDialog userDialog;
    private ProgressDialog waitDialog;
    private ListView attributesList;

    // Cognito user objects
    private CognitoUser user;
    private CognitoUserSession session;
    private CognitoUserDetails details;

    // User details
    private String username;

    // To track changes to user details
    private final List<String> attributesToDelete = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_user);
        Log.d("t","help us");
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

        // Set toolbar for this screen
        toolbar = (Toolbar) findViewById(R.id.main_toolbar);
        toolbar.setTitle("");
        TextView main_title = (TextView) findViewById(R.id.main_toolbar_title);
        main_title.setText("Account");
        setSupportActionBar(toolbar);

        // Set navigation drawer for this screen
        mDrawer = (DrawerLayout) findViewById(R.id.user_drawer_layout);
        mDrawerToggle = new ActionBarDrawerToggle(this,mDrawer, toolbar, R.string.nav_drawer_open, R.string.nav_drawer_close);
        mDrawer.addDrawerListener(mDrawerToggle);
        mDrawerToggle.syncState();

        nDrawer = (NavigationView) findViewById(R.id.nav_view);
        setNavDrawer();
        init();
        View navigationHeader = nDrawer.getHeaderView(0);
        TextView navHeaderSubTitle = (TextView) navigationHeader.findViewById(R.id.textViewNavUserSub);
        navHeaderSubTitle.setText(username);
    }

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

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Find which menu item was selected
        int menuItem = item.getItemId();

        // Do the task
        if(menuItem == R.id.user_update_attribute) {
            //updateAllAttributes();
            showWaitDialog("Updating...");
            getDetails();
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onBackPressed() {
        exit();
    }

    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);

        switch (requestCode) {
            case 20:
                // Settings
                if(resultCode == RESULT_OK) {
                    boolean refresh = data.getBooleanExtra("refresh", true);
                    if (refresh) {
                        showAttributes();
                    }
                }
                break;
            case 21:
                // Verify attributes
                if(resultCode == RESULT_OK) {
                    boolean refresh = data.getBooleanExtra("refresh", true);
                    if (refresh) {
                        showAttributes();
                    }
                }
                break;
            case 22:
                // Add attributes
                if(resultCode == RESULT_OK) {
                    boolean refresh = data.getBooleanExtra("refresh", true);
                    if (refresh) {
                        showAttributes();
                    }
                }
                break;
        }
    }

    // Handle when the a navigation item is selected
    private void setNavDrawer() {
        nDrawer.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
            @Override
            public boolean onNavigationItemSelected(MenuItem item) {
                performAction(item);
                return true;
            }
        });
    }

    // Perform the action for the selected navigation item
    private void performAction(MenuItem item) {
        // Close the navigation drawer
        mDrawer.closeDrawers();

        // Find which item was selected
        switch(item.getItemId()) {
            case R.id.nav_user_add_attribute:
                // Add a new attribute
                addAttribute();
                break;

            case R.id.nav_user_change_password:
                // Change password
                changePassword();
                break;
            case R.id.nav_user_verify_attribute:
                // Confirm new user
                // confirmUser();
                attributesVerification();
                break;
            case R.id.nav_user_settings:
                // Show user settings
                showSettings();
                break;
            case R.id.nav_user_sign_out:
                // Sign out from this account
                signOut();
                break;
            case R.id.nav_user_trusted_devices:
                showTrustedDevices();
                break;
            case R.id.nav_user_about:
                // For the inquisitive
                Intent aboutAppActivity = new Intent(this, AboutApp.class);
                startActivity(aboutAppActivity);
                break;
        }
    }

    // Get user details from CIP service
    private void getDetails() {
        AppHelper.getPool().getUser(username).getDetailsInBackground(detailsHandler);
    }

    // Show user attributes from CIP service
    private void showAttributes() {

        /*
        final UserAttributesAdapter attributesAdapter = new UserAttributesAdapter(getApplicationContext());
        final ListView attributesListView;
        attributesListView = (ListView) findViewById(R.id.listViewUserAttributes);
        attributesListView.setAdapter(attributesAdapter);
        attributesList = attributesListView;


        attributesListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                TextView data = (TextView) view.findViewById(R.id.editTextUserDetailInput);
                String attributeType = data.getHint().toString();
                String attributeValue = data.getText().toString();
                showUserDetail(attributeType, attributeValue);
            }
        });

        */
        final ListView attributesListView;
        attributesListView = (ListView) findViewById(R.id.listViewUserAttributes);
        final List<String> your_array_list = new ArrayList<String>();


        final ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(
                this,
                android.R.layout.simple_list_item_1,
                your_array_list );

        attributesListView.setAdapter(arrayAdapter);

        //setContentView(R.layout.activity_user);
        final TextView display = (TextView) findViewById(R.id.textViewUserDetailMessage);



        //Request
        String url = "https://anapioficeandfire.com/api/characters/583";
        final String url2 = "https://0d1mc6d1fk.execute-api.us-west-2.amazonaws.com/production/playlists?userId=1";
        final String url3 = "https://0d1mc6d1fk.execute-api.us-west-2.amazonaws.com/production/playlists?userId=1&playlistName=";
        final RequestQueue queue = Volley.newRequestQueue(this);

        JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(
                Request.Method.GET,
                url2,
                null,
                new Response.Listener<JSONArray>() {
                    @Override
                    public void onResponse(JSONArray response) {
                        // Do something with response
                        //mTextView.setText(response.toString());

                        // Process the JSON
                        try{
                            // Loop through the array elements
                            for(int i=0;i<response.length();i++){
                                // Get current json object
                                JSONObject student = response.getJSONObject(i);
                                your_array_list.add(student.getString("playlistName"));
                            }
                        }catch (JSONException e){
                            e.printStackTrace();
                        }

                        attributesListView.setAdapter(arrayAdapter);

                        attributesListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                            @Override
                            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                                String playlistname = your_array_list.get(position);

                                JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(
                                        Request.Method.GET,
                                        url3.concat(playlistname),
                                        null,
                                        new Response.Listener<JSONObject>() {
                                            @Override
                                            public void onResponse(JSONObject response) {
                                                // Do something with response
                                                //mTextView.setText(response.toString());

                                                // Process the JSON
                                                try{

                                                        JSONObject songs = response.getJSONObject("songs");
                                                        your_array_list.clear();
                                                        for (int i=0; i<songs.names().length(); i++){
                                                            your_array_list.add(songs.names().getString(i).toString());

                                                        }
                                                }catch (JSONException e){
                                                    e.printStackTrace();
                                                }
                                                attributesListView.setAdapter(arrayAdapter);
                                            }
                                        },
                                        new Response.ErrorListener(){
                                            @Override
                                            public void onErrorResponse(VolleyError error){
                                                // Do something when error occurred
                                            }
                                        }
                                );

                                // Add JsonArrayRequest to the RequestQueue
                                queue.add(jsonObjectRequest);

                                attributesListView.setAdapter(arrayAdapter);
                            }
                        });

                    }
                },
                new Response.ErrorListener(){
                    @Override
                    public void onErrorResponse(VolleyError error){
                        // Do something when error occurred

                    }
                }
        );

        // Add JsonArrayRequest to the RequestQueue
        queue.add(jsonArrayRequest);

    }

    // Update attributes
    private void updateAttribute(String attributeType, String attributeValue) {

        if(attributeType == null || attributeType.length() < 1) {
            return;
        }
        CognitoUserAttributes updatedUserAttributes = new CognitoUserAttributes();
        updatedUserAttributes.addAttribute(attributeType, attributeValue);
        Toast.makeText(getApplicationContext(), attributeType + ": " + attributeValue, Toast.LENGTH_LONG);
        showWaitDialog("Updating...");
        AppHelper.getPool().getUser(AppHelper.getCurrUser()).updateAttributesInBackground(updatedUserAttributes, updateHandler);
    }

    // Show user MFA Settings
    private void showSettings() {
        Intent userSettingsActivity = new Intent(this,SettingsActivity.class);
        startActivityForResult(userSettingsActivity, 20);
    }

    // Add a new attribute
    private void addAttribute() {
        Intent addAttrbutesActivity = new Intent(this,AddAttributeActivity.class);
        startActivityForResult(addAttrbutesActivity, 22);
    }

    // Delete attribute
    private void deleteAttribute(String attributeName) {
        showWaitDialog("Deleting...");
        List<String> attributesToDelete = new ArrayList<>();
        attributesToDelete.add(attributeName);
        AppHelper.getPool().getUser(AppHelper.getCurrUser()).deleteAttributesInBackground(attributesToDelete, deleteHandler);
    }

    // Change user password
    private void changePassword() {
        Intent changePssActivity = new Intent(this, ChangePasswordActivity.class);
        startActivity(changePssActivity);
    }

    // Verify attributes
    private void attributesVerification() {
        Intent attrbutesActivity = new Intent(this,VerifyActivity.class);
        startActivityForResult(attrbutesActivity, 21);
    }

    private void showTrustedDevices() {
        Intent trustedDevicesActivity = new Intent(this, DeviceSettings.class);
        startActivity(trustedDevicesActivity);
    }

    // Sign out user
    private void signOut() {
        user.signOut();
        exit();
    }

    // Initialize this activity
    private void init() {
        // Get the user name
        Bundle extras = getIntent().getExtras();
        username = AppHelper.getCurrUser();
        user = AppHelper.getPool().getUser(username);
        getDetails();
    }

    GetDetailsHandler detailsHandler = new GetDetailsHandler() {
        @Override
        public void onSuccess(CognitoUserDetails cognitoUserDetails) {

            closeWaitDialog();
            // Store details in the AppHandler
            AppHelper.setUserDetails(cognitoUserDetails);
            showAttributes();
            // Trusted devices?
            handleTrustedDevice();
        }

        @Override
        public void onFailure(Exception exception) {
            closeWaitDialog();
            showDialogMessage("Could not fetch user details!", AppHelper.formatException(exception), true);
        }
    };

    private void handleTrustedDevice() {
        CognitoDevice newDevice = AppHelper.getNewDevice();
        if (newDevice != null) {
            AppHelper.newDevice(null);
            trustedDeviceDialog(newDevice);
        }
    }

    private void updateDeviceStatus(CognitoDevice device) {
        device.rememberThisDeviceInBackground(trustedDeviceHandler);
    }

    private void trustedDeviceDialog(final CognitoDevice newDevice) {
        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("Remember this device?");
        //final EditText input = new EditText(UserActivity.this);

        LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.MATCH_PARENT,
                LinearLayout.LayoutParams.MATCH_PARENT);

        //input.setLayoutParams(lp);
        //input.requestFocus();
        //builder.setView(input);

        builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                try {
                    //String newValue = input.getText().toString();
                    showWaitDialog("Remembering this device...");
                    updateDeviceStatus(newDevice);
                    userDialog.dismiss();
                } catch (Exception e) {
                    // Log failure
                }
            }
        }).setNegativeButton("No", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                try {
                    userDialog.dismiss();
                } catch (Exception e) {
                    // Log failure
                }
            }
        });
        userDialog = builder.create();
        userDialog.show();
    }

    // Callback handlers

    UpdateAttributesHandler updateHandler = new UpdateAttributesHandler() {
        @Override
        public void onSuccess(List<CognitoUserCodeDeliveryDetails> attributesVerificationList) {
            // Update successful
            if(attributesVerificationList.size() > 0) {
                showDialogMessage("Updated", "The updated attributes has to be verified",  false);
            }
            getDetails();
        }

        @Override
        public void onFailure(Exception exception) {
            // Update failed
            closeWaitDialog();
            showDialogMessage("Update failed", AppHelper.formatException(exception), false);
        }
    };

    GenericHandler deleteHandler = new GenericHandler() {
        @Override
        public void onSuccess() {
            closeWaitDialog();
            // Attribute was deleted
            Toast.makeText(getApplicationContext(), "Deleted", Toast.LENGTH_SHORT);

            // Fetch user details from the the service
            getDetails();
        }

        @Override
        public void onFailure(Exception e) {
            closeWaitDialog();
            // Attribute delete failed
            showDialogMessage("Delete failed", AppHelper.formatException(e), false);

            // Fetch user details from the service
            getDetails();
        }
    };

    GenericHandler trustedDeviceHandler = new GenericHandler() {
        @Override
        public void onSuccess() {
            // Close wait dialog
            closeWaitDialog();
        }

        @Override
        public void onFailure(Exception exception) {
            closeWaitDialog();
            showDialogMessage("Failed to update device status", AppHelper.formatException(exception), true);
        }
    };

    private void showUserDetail(final String attributeType, final String attributeValue) {

        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle(attributeType);
        final EditText input = new EditText(UserActivity.this);
        input.setText(attributeValue);

        LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
                LinearLayout.LayoutParams.MATCH_PARENT,
                LinearLayout.LayoutParams.MATCH_PARENT);

        input.setLayoutParams(lp);
        input.requestFocus();
        builder.setView(input);

        builder.setNeutralButton("OK", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                try {
                    String newValue = input.getText().toString();
                    if(!newValue.equals(attributeValue)) {
                        showWaitDialog("Updating...");
                        updateAttribute(AppHelper.getSignUpFieldsC2O().get(attributeType), newValue);
                    }
                    userDialog.dismiss();
                } catch (Exception e) {
                    // Log failure
                }
            }
        }).setPositiveButton("Delete", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                try {
                    userDialog.dismiss();
                    deleteAttribute(AppHelper.getSignUpFieldsC2O().get(attributeType));
                } catch (Exception e) {
                    // Log failure
                }
            }
        });
        userDialog = builder.create();
        userDialog.show();
    }

    private void showWaitDialog(String message) {
        closeWaitDialog();
        waitDialog = new ProgressDialog(this);
        waitDialog.setTitle(message);
        waitDialog.show();
    }

    private void showDialogMessage(String title, String body, final boolean exit) {
        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle(title).setMessage(body).setNeutralButton("OK", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                try {
                    userDialog.dismiss();
                    if(exit) {
                        exit();
                    }
                } catch (Exception e) {
                    // Log failure
                    Log.e(TAG," -- Dialog dismiss failed");
                    if(exit) {
                        exit();
                    }
                }
            }
        });
        userDialog = builder.create();
        userDialog.show();
    }

    private void closeWaitDialog() {
        try {
            waitDialog.dismiss();
        }
        catch (Exception e) {
            //
        }
    }

    private void exit () {
        Intent intent = new Intent();
        if(username == null)
            username = "";
        intent.putExtra("name",username);
        setResult(RESULT_OK, intent);
        finish();
    }
}