//class chat
public class Chat implements Serializable {
    private String id, username, pesan;

    public Chat(String id, String username, String pesan) {
        this.id = id;
        this.username = username;
        this.pesan = pesan;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPesan() {
        return pesan;
    }

    public void setPesan(String pesan) {
        this.pesan = pesan;
    }
}

//class CustomAdapter
public class CustomAdapter extends ArrayAdapter<Chat> {
    private final Activity context;
    ArrayList<Chat> chats = new ArrayList<>();

    public CustomAdapter(Activity activity, ArrayList<Chat> chats){
        super(activity, R.layout.chat_layout, chats);
        this.context = activity;
        this.chats = chats;
    }

    public View getView(int pos, View view, ViewGroup parent){
        LayoutInflater inflater = context.getLayoutInflater();
        View rowView = inflater.inflate(R.layout.chat_layout, null, true);

        TextView txtPengirim = (TextView) rowView.findViewById(R.id.txtPengirim);
        TextView txtPesan = (TextView) rowView.findViewById(R.id.txtPesan);

        txtPengirim.setText(chats.get(pos).getUsername());
        txtPesan.setText(chats.get(pos).getPesan());
        return rowView;
    }
}

//class JsonParser
public class JsonParser {
    private static InputStream is=null;
    private static String result=null;
    private static String line=null;
    private static JSONObject json_data;
    private static String url;

    public static JSONObject aksesHttp(String urlFromActivity, ArrayList<NameValuePair> nameValuePairs){
        url = "http://ramlivan.esy.es/chat/";
        url += urlFromActivity;
        Log.d("url", url);
        if (android.os.Build.VERSION.SDK_INT > 9) {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);
        }
        ArrayList<NameValuePair> valuePairs = new ArrayList<>();
        if(nameValuePairs != null){
            valuePairs = nameValuePairs;
        }
        try
        {
            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost(url);
            httppost.setEntity(new UrlEncodedFormEntity(valuePairs));
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity entity = response.getEntity();
            is = entity.getContent();
            Log.e("pass 1", "connection success ");
        }
        catch(Exception e)
        {
            Log.e("Fail 1", e.toString());
        }

        try
        {
            BufferedReader reader = new BufferedReader
                    (new InputStreamReader(is,"iso-8859-1"),8);
            StringBuilder sb = new StringBuilder();
            while ((line = reader.readLine()) != null)
            {
                sb.append(line + "\n");
            }
            is.close();
            result = sb.toString();
            Log.e("pass 2", "connection success ");
        }
        catch(Exception e)
        {
            Log.e("Fail 2", e.toString());
        }

        try
        {
            json_data = new JSONObject(result);
            String query = json_data.getString("query");
            Log.d("query", query);
        }
        catch(Exception e)
        {
            Log.e("Fail 3", e.toString());
        }
        return json_data;
    }
}

//class user
public class User implements Serializable{
    private String username, password;

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public User(String username, String password) {

        this.username = username;
        this.password = password;
    }
}

//ActivityChat
public class ChatActivity extends AppCompatActivity {
    User olUser;
    ArrayList<Chat> allChat = new ArrayList<>();

    ListView lvChat;
    Button btnKirim;
    EditText editPesan;



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

        olUser = (User) getIntent().getSerializableExtra("olUser");

        lvChat = (ListView) findViewById(R.id.lvChat);
        editPesan = (EditText) findViewById(R.id.editPesan);
        btnKirim = (Button) findViewById(R.id.btnKirim);

        btnKirim.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String username = olUser.getUsername();
                String pesan = editPesan.getText().toString();
                String url = "latuasmobile/sendchat.php";
                ArrayList<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
                nameValuePairs.add(new BasicNameValuePair("username", username));
                nameValuePairs.add(new BasicNameValuePair("pesan", pesan));
                JSONObject object = JsonParser.aksesHttp(url, nameValuePairs);
                editPesan.setText("");
            }
        });

        reloadChat();
    }

    JSONObject jsonObject;
    private void reloadChat(){
        new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    Thread.sleep(1000);
                    String url = "latuasmobile/chat.php";
                    allChat = new ArrayList<Chat>();
                    jsonObject = JsonParser.aksesHttp(url, null);
                    JSONArray allChatJSONArray = jsonObject.getJSONArray("allChat");
                    for(int i=0; i<allChatJSONArray.length(); i++){
                        JSONObject newJsonObj = allChatJSONArray.getJSONObject(i);
                        String id = newJsonObj.getString("id");
                        String username = newJsonObj.getString("username");
                        String pesan = newJsonObj.getString("pesan");
                        allChat.add(new Chat(id, username, pesan));
                    }

                    ChatActivity.this.runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            CustomAdapter adapter;
                            adapter = new CustomAdapter(ChatActivity.this, allChat);
                            lvChat.setAdapter(adapter);
                            lvChat.setSelection(lvChat.getCount());
                        }
                    });
                    reloadChat();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }).start();

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

//ActivityLogin
public class LoginActivity extends AppCompatActivity {
    ArrayList<User> allUsers = new ArrayList<>();

    EditText editUsername, editPassword;
    Button btnLogin, btnSignUp;
    User olUser;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);

        new GetAllDataFromDB().execute();

        editUsername = (EditText) findViewById(R.id.editUsername);
        editPassword = (EditText) findViewById(R.id.editPassword);
        btnLogin = (Button) findViewById(R.id.btnLogin);
        btnLogin.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String username = editUsername.getText().toString();
                String password = editPassword.getText().toString();
                int loginFlag = 0;
                for(User idx: allUsers){
                    if(username.equals(idx.getUsername()) && password.equals(idx.getPassword())){
                        loginFlag = 1;
                        olUser = idx;
                        break;
                    }
                }
                if(loginFlag == 1){
                    Log.d("login status", "benar");
                    Intent intent = new Intent(getApplicationContext(), MenuActivity.class);
                    intent.putExtra("olUser", olUser);
                    startActivity(intent);
                } else {
                    Log.d("login status", "salah");
                }
            }
        });

        btnSignUp = (Button) findViewById(R.id.btnSignUp);
        btnSignUp.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                startActivity(new Intent(getApplicationContext(), SignUpActivity.class));
            }
        });
    }

    private class GetAllDataFromDB extends AsyncTask<String, String, String>{
        JSONObject jsonObject;
        JSONArray jsonArrayAllUser;

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            allUsers = new ArrayList<>();
        }

        @Override
        protected String doInBackground(String... params) {
            String url = "latuasmobile/login.php";
            jsonObject = JsonParser.aksesHttp(url, null);
            try{
                jsonArrayAllUser = jsonObject.getJSONArray("allUser");
                for(int i=0; i<jsonArrayAllUser.length(); i++){
                    JSONObject objFromArr = jsonArrayAllUser.getJSONObject(i);
                    String username = objFromArr.getString("username");
                    String password = objFromArr.getString("password");
                    Log.d("user", username + "-" + password);
                    allUsers.add(new User(username, password));
                }
            } catch (Exception ex){
                ex.printStackTrace();
            }

            return null;
        }

        @Override
        protected void onPostExecute(String s) {
            super.onPostExecute(s);
        }
    }
}

//ActivityMain
public class MainActivity extends AppCompatActivity {

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

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater menuInflater = new MenuInflater(MainActivity.this);
        menuInflater.inflate(R.menu.menu_login, menu);
        return true;
        //return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if(item.getItemId() == R.id.menuLogin){
            startActivity(new Intent(getApplicationContext(), LoginActivity.class));
        }
        return super.onOptionsItemSelected(item);


    }
}

//ActivityMenu
public class MenuActivity extends AppCompatActivity {
    User olUser;

    Button btnChat, btnLogout;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_menu);

        olUser = (User) getIntent().getSerializableExtra("olUser");
        btnChat = (Button) findViewById(R.id.btnChat);

        btnChat.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(getApplicationContext(), ChatActivity.class);
                intent.putExtra("olUser", olUser);
                startActivity(intent);
            }
        });

        btnLogout = (Button) findViewById(R.id.btnLogout);
        btnLogout.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
    }

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


//ActivitySignUp
public class SignUpActivity extends AppCompatActivity {
    EditText editUsername, editPassword;
    Button btnCancel, btnSignUp;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sign_up);

        editUsername = (EditText) findViewById(R.id.editUsername);
        editPassword = (EditText) findViewById(R.id.editPassword);
        btnSignUp = (Button) findViewById(R.id.btnSignUp);
        btnSignUp.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String username = editUsername.getText().toString();
                String password = editPassword.getText().toString();
                ArrayList<NameValuePair> valuePairs = new ArrayList<NameValuePair>();
                valuePairs.add(new BasicNameValuePair("username", username));
                valuePairs.add(new BasicNameValuePair("password", password));
                JSONObject obj = JsonParser.aksesHttp("latuasmobile/signup.php", valuePairs);
                finish();
            }
        });

        btnCancel = (Button) findViewById(R.id.btnCancel);
        btnCancel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
    }

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