package com.deitel.favoritetwittersearches;

import java.util.Arrays;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.net.Uri;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TableLayout;
import android.widget.TableRow;


public class FavoriteTwitterSearches extends Activity {
    /** Called when the activity is first created. */
	private SharedPreferences savedSearches;
	private TableLayout queryTableLayout;
	private EditText queryEditText;
	private EditText tagEditText;

	@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        //get the SharedPreferences that contains the user's saved searches
        savedSearches = getSharedPreferences("searches", MODE_PRIVATE);

        //get references to the queryTableLayout
        queryTableLayout = (TableLayout) findViewById(R.id.queryTableLayout);

        //get references to the two EditTexts and Save Button
        queryEditText = (EditText) findViewById(R.id.queryEditText);
        tagEditText = (EditText) findViewById(R.id.tagEditText);

        //register listeners for the Save and Clear Tags Buttons
        Button saveButton = (Button) findViewById(R.id.saveButton);
        OnClickListener saveButtonListener = null;
		saveButton.setOnClickListener(saveButtonListener);
        Button clearTagsButton = (Button) findViewById(R.id.clearTagsButton);
        OnClickListener clearTagsButtonListener = null;
		clearTagsButton.setOnClickListener(clearTagsButtonListener);

        refreshButtons(null); //add previously save searches to GUI

    }

	private void refreshButtons(Object object) {
		// TODO Auto-generated method stub

	}
//end method onCreate

//recreate search tag and edit Buttons for all saved searches;
//pass null to create all the tag and edit Buttons.
private void refreshButtons(String newTag)
{
	//store saved tags in the tags array
	String[] tags = savedSearches.getAll().keySet().toArray(new String[0]);
	Arrays.sort(tags, String.CASE_INSENSITIVE_ORDER); //sort by tag

	//if a new tag was added, insert in GUI at the appropriate location
	if (newTag != null)
	{
		makeTagGUI(newTag, Arrays.binarySearch(tags, newTag));
	}
	else //display GUI for all tags
	{
		//display all saved searches
		for (int index = 0; index < tags.length; ++index)
			makeTagGUI(tags[index], index);
	} //end else
}
private void makeTagGUI(String newTag, int binarySearch) {
	// TODO Auto-generated method stub

} //end method refreshButtons
//add new search to the save file, then refresh all Buttons
private void makeTag(String query, String tag)
{
	//originalQuery will be null if we're modifying an existing search
	String originalQuery = savedSearches.getString(tag, null);

	//get a SharedPreferences.Editor to store new tag/query pair
	SharedPreferences.Editor preferencesEditor = savedSearches.edit();
	preferencesEditor.putString(tag, query); //store current search
	preferencesEditor.apply(); //store the updated preferences
	//if this is a new query, add its GUI
	if (originalQuery == null)
		refreshButtons(tag); //adds a new button for this tag
} //end method makeTag

//add a new tag button and corresponding edit button to the GUI
private void makeTagGUI1(String tag, int index)
{
	//get a reference to the LayoutInflater service
	LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);

	//inflate new_tag_view.xml to create new tag and edit Buttons
	View newTagView = inflater.inflate(R.layout.new_tag_view, null);

	//get newTagButton, set its text and register its listener
	Button newTagButton = (Button) newTagView.findViewById(R.id.newTagButton);
	newTagButton.setText(tag);
	OnClickListener queryButtonListener = null;
	newTagButton.setOnClickListener(queryButtonListener);

	//get newEditButton and register its listener
	Button newEditButton = (Button) newTagView.findViewById(R.id.newEditButton);
	OnClickListener editButtonListener = null;
	newEditButton.setOnClickListener(editButtonListener);

	//add new tag and edit buttons to queryTableLayout
	queryTableLayout.addView(newTagView, index);
} //end makeTagGUI1

//remove all saved search Buttons from the app
private void clearButtons()
{
	//remove all saved search Buttons
	queryTableLayout.removeAllViews();
} //ends method clearButtons

//create a new Button and add it to the ScrollView
public OnClickListener saveButtonListener = new OnClickListener()
{
	@Override
	public void onClick(View v)
	{
		//create tag if both queryEditText and tagEditText are not empty
		if (queryEditText.getText().length() > 0 && tagEditText.getText().length() > 0)
		{
			makeTag(queryEditText.getText().toString(), tagEditText.getText().toString());
			queryEditText.setText(""); // clear queryEditText
			tagEditText.setText(""); // clear tagEditText

			//hide the soft keyboard
			((InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE)).hideSoftInputFromWindow(tagEditText.getWindowToken(), 0);
		} // end if
		else // display message asking user to provide a query and a tag
		{
			// create a new AlertDialog Builder
			AlertDialog.Builder builder = new AlertDialog.Builder(FavoriteTwitterSearches.this);

			builder.setTitle(R.string.missingTitle); // title bar string

			// provide an OK button that simply dismisses the dialog
			builder.setPositiveButton(R.string.OK, null);

			// set the message to display
			builder.setMessage(R.string.missingMessage);

			// create AlertDialog from the AlertDialog Builder
			AlertDialog errorDialog = builder.create();
			errorDialog.show(); // display the Dialog
		} //  end else
	} // end method OnClick
}; // end OnClickListener anonymous inner class

// clears all saved searches
public OnClickListener clearTagsButtonListener = new OnClickListener()
{
	@Override
	public void onClick(View v)
	{
		// create a new AlertDialog Builder
		AlertDialog.Builder builder = new AlertDialog.Builder(FavoriteTwitterSearches.this);

		builder.setTitle(R.string.confirmTitle); // title bar string

		// provide an OK button that simply dismisses the dialog
		builder.setPositiveButton(R.string.erase, new DialogInterface.OnClickListener()
		{
			@Override
			public void onClick(DialogInterface dialog, int button)
			{
				clearButtons(); // clears all saved searches from the map

				// get a SharedPreferences.Editor to clear searches
				SharedPreferences.Editor preferencesEditor = savedSearches.edit();

				preferencesEditor.clear(); // removes all tag/query pairs
				preferencesEditor.apply(); // commit the changes
			} // end method onClick
		} // end anonymous inner class
	); // end call to method setPositiveButton

	builder.setCancelable(true);
	builder.setNegativeButton(R.string.cancel, null);

	//set the message to display
	builder.setMessage(R.string.confirmMessage);

	//create AlertDialog from the AlertDialog.Builder
	AlertDialog confirmDialog = builder.create();
	confirmDialog.show(); // display the Dialog
	} // end method onClick
}; // end On Click Listener anonymous inner class

// load selected search in a web browser
public OnClickListener queryButtonListener = new OnClickListener()
{
	@Override
	public void onClick(View v)
	{
		// get the query
		String buttonText = ((Button)v).getText().toString();
		String query = savedSearches.getString(buttonText, null);

		// create the URL corresponding to the touched Button's query
		String urlString = getString(R.string.searchURL) + query;

		//create an Intent to launch a web browser
		Intent getUrl = new Intent(Intent.ACTION_VIEW, Uri.parse(urlString));

		Intent getURL = null;
		startActivity(getURL); // execute the Intent
		} // end method OnClick
}; // end OnClickListener anonymous inner class

// edit selected search
public OnClickListener editButtonListener = new OnClickListener()
{
	@Override
	public void onClick(View v)
	{
		// get all necessary GUI components
		TableRow buttonTableRow = (TableRow) v.getParent();
		Button searchButton = (Button) buttonTableRow.findViewById(R.id.newTagButton);

		String tag = searchButton.getText().toString();

		//set EditTexts to match the chosen tag and query
		tagEditText.setText(tag);
		queryEditText.setText(savedSearches.getString(tag, null));
	} // end method onClick
}; // end OnClickListener anonymous inner class
} // end class FavoriteTwitteSearches