/**
 * This class may be considered under GPL v3 License.
 *
 * @author Diego Stamigni
 * @date 18/May 2011
 */

package com.telecom.nuvolait.homedoctor.utility;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.SharedPreferences;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.TextView;

public class LoginDialog extends Activity {
    private Context mContext;
    private String username, password;
    private SharedPreferences prefs;
    public int layoutResId, userETid, passETid, reloginCBid, TextViewErrorMessageId;
    private final static String RELOGIN_VALUE = "reloginvalue";
    private final static String RELOGIN_USERID = "userid";
    private final static String RELOGIN_PWD = "password";
    public Class<?> activityclassname;
    public String helpUser, helpPass, errorMessage, titleMessage;
    public int logmessagetextview, idResource;
    public Dialog dialog;
    public int icon;
    public ViewGroup currentViewGroup;

    /**
     *
     * @param context
     * @param resId is the resource id of the layout for the logindialog
     * @param prefMode 0 means DefaultSharedPreferences mode (better)
     */
    public LoginDialog(Context context, int LoginLayoutResId, ViewGroup v)  {
        this.mContext = context;
        this.layoutResId = LoginLayoutResId;
        this.currentViewGroup = v;
    }

    public View inflateLayout () {
        LayoutInflater inflater = (LayoutInflater) this.mContext.getSystemService(LAYOUT_INFLATER_SERVICE);
        return inflater.inflate(this.layoutResId, this.getViewGroup());
    }

    public boolean checkEmptyElements(View layout, int userId, int passId) {
        EditText user = (EditText) layout.findViewById(userId);
        EditText pass = (EditText) (EditText) layout.findViewById(passId);
        this.username = new String(user.getText().toString().trim());
        this.password = new String(pass.getText().toString().trim());

        if (user.length()>0 && pass.length()>0)
            return true;
        else
            return false;
    }

    public Context getContext() {
        return mContext;
    }

    /**
     * @param errorMessage
     */
    public Dialog create(final String okTextButton, final String notTextButton, final String warningTitle,
            final String warningMess, final int iconWaResId) {
        final AlertDialog.Builder builder = new AlertDialog.Builder(this.mContext);
        final View layout = this.inflateLayout();

        final CheckBox cbrelogin = (CheckBox) layout.findViewById(this.getReLoginCheckBoxResId());
        cbrelogin.setChecked(this.prefs.getBoolean(RELOGIN_VALUE, false));

        final EditText userET = (EditText) layout.findViewById(getUsernameEditBoxResId());
        final EditText passET = (EditText) (EditText) layout.findViewById(getPasswordEditBoxResId());

        if (cbrelogin.isChecked()) {
            userET.setText(getPreferences().getString(RELOGIN_USERID, ""));
            passET.setText(getPreferences().getString(RELOGIN_PWD, ""));
        }

        TextView error = (TextView) layout.findViewById(getTextViewIdForError());
        error.setText(getErrorMessage());

        builder.setPositiveButton(okTextButton, new OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                username = new String(userET.getText().toString().trim());
                password = new String(passET.getText().toString().trim());

                if (!checkEmptyElements(layout, getUsernameEditBoxResId(), getPasswordEditBoxResId())) {
                    infoDialog(warningTitle, warningMess, iconWaResId);
                } else {
                    ///////////////////////////////////////////////////////////////////////////
                    // salvo i dati, attenzione salvo nelle preferenze la password in chiaro //
                    ///////////////////////////////////////////////////////////////////////////
                    saveUserPreferencesData(layout, prefs, username, password, getReLoginCheckBoxResId());
                }
            }
        });

        builder.setNegativeButton(notTextButton, new OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                if (!cbrelogin.isChecked()) {
                    System.gc();
                    System.exit(1);
                }
            }
        });


        builder.setIcon(getLoginDialogIcon());
        builder.setView(layout);
        this.dialog = builder.create();
        this.dialog.setTitle(getLoginDialogTitle());
        this.dialog.setCancelable(false);
        return this.dialog;
    }

    public CharSequence getErrorMessage() {
        return errorMessage;
    }

    public Dialog getLoginDialog() {
        return this.dialog;
    }

    public void showLoginDialog() {
        this.dialog.show();
    }

    public void setErrorMessage(String text) {
        this.errorMessage = text;
    }

    public int getTextViewIdForError() {
        return TextViewErrorMessageId;
    }

    public void setTextViewIdForError(int resId) {
        this.TextViewErrorMessageId = resId;
    }

    public void setPreferences(SharedPreferences prefs) {
        this.prefs = prefs;
    }

    public Class<?> getActivityClassName() {
        return this.activityclassname;
    }

    public void setLoginDialogIcon(int icon) {
        this.icon = icon;
    }

    public int getLoginDialogIcon() {
        return this.icon;
    }

    public void setLoginDialogTitle(String s) {
        this.titleMessage = s;
    }

    public String getLoginDialogTitle() {
        return this.titleMessage;
    }

    public void setActivityClassName(Class<?> t) {
        this.activityclassname = t;
    }
    public SharedPreferences getPreferences() {
        return this.prefs;
    }

    public String getUsername() {
        if (this.username != null)
            return this.username;
        else
            return "";
    }

    public void setUsernameEditBoxResId(int resId){
        this.userETid = resId;
    }

    public void setPasswordEditBoxResId(int resId){
        this.passETid = resId;
    }

    public void setReLoginCheckBoxResId(int resId){
        this.reloginCBid = resId;
    }

    public int getUsernameEditBoxResId(){
        return this.userETid;
    }

    public int getPasswordEditBoxResId(){
        return this.passETid;
    }

    public int getReLoginCheckBoxResId(){
        return this.reloginCBid;
    }

    public String getPassword() {
        if (this.password != null)
            return this.password;
        else
            return "";
    }

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

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

    public int getLayoutResId() {
        return this.layoutResId;
    }

    public int getLogMessageTextViewResId() {
        return logmessagetextview;
    }

    public void setLogMessageTextViewResId(int resId) {
        this.logmessagetextview = resId;
    }

    /**
     * This method is used for save username, password and checkbox autologin value in the preference file
     *
     * @param v is the view where's the widget
     * @param prefs is the SharedPreferences file
     * @param user is the string that you want to save
     * @param pass is the other string, used as above
     * @param resId is the resource of the checkbox
     * @see res/layout/logdialog.xml
     */
    public void saveUserPreferencesData(View v, SharedPreferences prefs, String user, String pass, int resId) {
        SharedPreferences.Editor editor = prefs.edit();
        CheckBox cbrelogin = (CheckBox) v.findViewById(resId);

        editor.putBoolean(RELOGIN_VALUE, cbrelogin.isChecked());
        editor.putString(RELOGIN_USERID, user);
        editor.putString(RELOGIN_PWD, pass);
        editor.commit();
    }

    /**
     * This is an info Alert Dialog with Ok (Neutral) Button for ReLogin Dialog
     * @param message means the message you would display
     * @param title means the title you would display
     * @param resId means the resource for the icon you would display
     */
    public void infoDialog(String title, String message, int resId) {
        AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
        builder
        .setMessage(message)
        .setCancelable(false)
        .setNeutralButton("Ok", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int id) {
                dialog.cancel();
                showLoginDialog();
            }
        });
        builder.setTitle(title);
        builder.setIcon(resId);
        AlertDialog alert = builder.create();
        alert.show();
    }

    public void setViewGroup(ViewGroup v) {
        this.currentViewGroup = v;
    }

    public ViewGroup getViewGroup() {
        return this.currentViewGroup;
    }
}