package tlc.savetosd; // my package name ; activity package

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.text.Editable;
import android.view.Menu;
import android.widget.EditText;
import android.widget.Toast;

public class Savetosd extends Activity { // my class name is: (short) Savetosd; (long) tlc.savetosd.Savetosd; you will have to enter the long name as the activityclass in app inventor
		
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_savetosd);			
              
        final EditText input = new EditText(this);

        /****
         * This Alert Dialog prompts the user for a file name to save          
        ****/
       
        new AlertDialog.Builder(this)
            .setTitle("Save As: ")
            .setMessage("Enter File Name: ")
            .setView(input)
            .setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                 public void onClick(DialogInterface dialog, int whichButton) {
                	 String filename;             	 
                     Editable name = input.getText(); 	//gets the text from the input box
                     filename = name+".txt";	// creates the filename with .txt extension
                     savefile(filename);    	 // calls the procedure to write the file with the filename as parameter           	
                 }

				private void savefile(String filename) {
					
					String input = "nothing passed in";	 
			        Bundle extras = getIntent().getExtras(); 	// gets the extra data from the intent that started the activity(aka the AI app)
			        input = extras.getString("test"); 		// this gets the data that has an "Extra Key" of name "test"(this can be anything as long as it is the same in both App Inventor and Eclipse				   
				        try {
				        	File myFile = new File("/sdcard/TLC/"+ filename); // designates the path to save to (note that if the folder is not found it will pass an error and the app will crash)
				        			// todo
				        			//add exception handler for when the path does not exist
				        	myFile.createNewFile();
				        	FileOutputStream fOut = new FileOutputStream(myFile);  // creates the file
				        	OutputStreamWriter myOutWriter = 
				        	new OutputStreamWriter(fOut);
				        	myOutWriter.append(input); // writes the received data to the file
				        	myOutWriter.close();
				        	fOut.close();
				        	Bundle bundle = new Bundle();
				            bundle.putCharSequence("APP_INVENTOR_RESULT",filename); 
				            Intent mIntent = new Intent();  // creates an intent to send app inventor a result
				            mIntent.putExtras(bundle);
				            setResult(RESULT_OK, mIntent);
				            finish(); // closes the app and returns to app inventor
							} catch (Exception e) {
								Toast.makeText(getBaseContext(), e.getMessage(),
								Toast.LENGTH_SHORT).show();
							}		
				        finish();
				}
				}
            )
            .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                 public void onClick(DialogInterface dialog, int whichButton) {
                	 Bundle bundle = new Bundle();
			            bundle.putCharSequence("APP_INVENTOR_RESULT", "Opperation Cancelled, please try again");
			            Intent mIntent = new Intent();
			            mIntent.putExtras(bundle);
			            setResult(RESULT_OK, mIntent);
			            finish();
                 }
            }).show();
	}      
	
	@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_savetosd, menu);
		return true;	
	}
}