/*

   Main/Home Activity

   Copyright 2013 Thincast Technologies GmbH, Author: Martin Fleisz

   This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.

   If a copy of the MPL was not distributed with this file, You can obtain one at

   http://mozilla.org/MPL/2.0/.

*/

package com.freerdp.freerdpcore.presentation;

import android.app.AlertDialog;

import android.content.DialogInterface;

import android.content.Intent;

import android.content.res.Configuration;

import android.net.Uri;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.text.Editable;

import android.text.TextWatcher;

import android.util.Log;

import android.view.ContextMenu;

import android.view.ContextMenu.ContextMenuInfo;

import android.view.Menu;

import android.view.MenuInflater;

import android.view.MenuItem;

import android.view.View;

import android.view.View.OnClickListener;

import android.view.View.OnCreateContextMenuListener;

import android.widget.AdapterView;

import android.widget.AdapterView.AdapterContextMenuInfo;

import android.widget.Button;

import android.widget.CheckBox;

import android.widget.EditText;

import android.widget.ListView;

import com.freerdp.freerdpcore.R;

import com.freerdp.freerdpcore.application.GlobalApp;

import com.freerdp.freerdpcore.domain.BookmarkBase;

import com.freerdp.freerdpcore.domain.ConnectionReference;

import com.freerdp.freerdpcore.domain.PlaceholderBookmark;

import com.freerdp.freerdpcore.domain.QuickConnectBookmark;

import com.freerdp.freerdpcore.utils.BookmarkArrayAdapter;

import com.freerdp.freerdpcore.utils.SeparatedListAdapter;

import java.util.ArrayList;

public class HomeActivity extends AppCompatActivity

{

	private final static String ADD_BOOKMARK_PLACEHOLDER = "add_bookmark";

	private static final String TAG = "HomeActivity";

	private static final String PARAM_SUPERBAR_TEXT = "superbar_text";

	private ListView listViewBookmarks;

	private Button clearTextButton;

	private EditText superBarEditText;

	private BookmarkArrayAdapter manualBookmarkAdapter;

	private SeparatedListAdapter separatedListAdapter;

	private PlaceholderBookmark addBookmarkPlaceholder;

	private String sectionLabelBookmarks;

	View mDecor;

	@Override public void onCreate(Bundle savedInstanceState)

	{

		setTitle(R.string.title_home);

		super.onCreate(savedInstanceState);

		setContentView(R.layout.home);

		mDecor = getWindow().getDecorView();

		mDecor.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION |

		                             View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);

		long heapSize = Runtime.getRuntime().maxMemory();

		Log.i(TAG, "Max HeapSize: " + heapSize);

		Log.i(TAG, "App data folder: " + getFilesDir().toString());

		// load strings

		sectionLabelBookmarks = getResources().getString(R.string.section_bookmarks);

		// create add bookmark/quick connect bookmark placeholder

		addBookmarkPlaceholder = new PlaceholderBookmark();

		addBookmarkPlaceholder.setName(ADD_BOOKMARK_PLACEHOLDER);

		addBookmarkPlaceholder.setLabel(

		    getResources().getString(R.string.list_placeholder_add_bookmark));

		// check for passed .rdp file and open it in a new bookmark

		Intent caller = getIntent();

		Uri callParameter = caller.getData();

		if (Intent.ACTION_VIEW.equals(caller.getAction()) && callParameter != null)

		{

			String refStr = ConnectionReference.getFileReference(callParameter.getPath());

			Bundle bundle = new Bundle();

			bundle.putString(BookmarkActivity.PARAM_CONNECTION_REFERENCE, refStr);

			Intent bookmarkIntent =

			    new Intent(this.getApplicationContext(), BookmarkActivity.class);

			bookmarkIntent.putExtras(bundle);

			startActivity(bookmarkIntent);

		}

		// load views

		clearTextButton = (Button)findViewById(R.id.clear_search_btn);

		superBarEditText = (EditText)findViewById(R.id.superBarEditText);

		listViewBookmarks = (ListView)findViewById(R.id.listViewBookmarks);

		// set listeners for the list view

		listViewBookmarks.setOnItemClickListener(new AdapterView.OnItemClickListener() {

			public void onItemClick(AdapterView parent, View view, int position, long id)

			{

				String curSection = separatedListAdapter.getSectionForPosition(position);

				Log.v(TAG, "Clicked on item id " + separatedListAdapter.getItemId(position) +

				               " in section " + curSection);

				if (curSection.equals(sectionLabelBookmarks))

				{

					String refStr = view.getTag().toString();

					if (ConnectionReference.isManualBookmarkReference(refStr) ||

					    ConnectionReference.isHostnameReference(refStr))

					{

						Bundle bundle = new Bundle();

						bundle.putString(SessionActivity.PARAM_CONNECTION_REFERENCE, refStr);

						Intent sessionIntent = new Intent(view.getContext(), SessionActivity.class);

						sessionIntent.putExtras(bundle);

						startActivity(sessionIntent);

						// clear any search text

						superBarEditText.setText("");

						superBarEditText.clearFocus();

					}

					else if (ConnectionReference.isPlaceholderReference(refStr))

					{

						// is this the add bookmark placeholder?

						if (ConnectionReference.getPlaceholder(refStr).equals(

						        ADD_BOOKMARK_PLACEHOLDER))

						{

							Intent bookmarkIntent =

							    new Intent(view.getContext(), BookmarkActivity.class);

							startActivity(bookmarkIntent);

						}

					}

				}

			}

		});

		listViewBookmarks.setOnCreateContextMenuListener(new OnCreateContextMenuListener() {

			@Override

			public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo)

			{

				// if the selected item is not a session item (tag == null) and not a quick connect

				// entry (not a hostname connection reference) inflate the context menu

				View itemView = ((AdapterContextMenuInfo)menuInfo).targetView;

				String refStr = itemView.getTag() != null ? itemView.getTag().toString() : null;

				if (refStr != null && !ConnectionReference.isHostnameReference(refStr) &&

				    !ConnectionReference.isPlaceholderReference(refStr))

				{

					getMenuInflater().inflate(R.menu.bookmark_context_menu, menu);

					menu.setHeaderTitle(getResources().getString(R.string.menu_title_bookmark));

				}

			}

		});

		superBarEditText.addTextChangedListener(new SuperBarTextWatcher());

		clearTextButton.setOnClickListener(new OnClickListener() {

			@Override public void onClick(View v)

			{

				superBarEditText.setText("");

			}

		});

	}

	@Override public void onConfigurationChanged(Configuration newConfig)

	{

		// ignore orientation/keyboard change

		super.onConfigurationChanged(newConfig);

		mDecor.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION |

		                             View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);

	}

	@Override public boolean onSearchRequested()

	{

		superBarEditText.requestFocus();

		return true;

	}

	@Override public boolean onContextItemSelected(MenuItem aItem)

	{

		// get connection reference

		AdapterContextMenuInfo menuInfo = (AdapterContextMenuInfo)aItem.getMenuInfo();

		String refStr = menuInfo.targetView.getTag().toString();

		// refer to http://tools.android.com/tips/non-constant-fields why we can't use switch/case

		// here ..

		int itemId = aItem.getItemId();

		if (itemId == R.id.bookmark_connect)

		{

			Bundle bundle = new Bundle();

			bundle.putString(SessionActivity.PARAM_CONNECTION_REFERENCE, refStr);

			Intent sessionIntent = new Intent(this, SessionActivity.class);

			sessionIntent.putExtras(bundle);

			startActivity(sessionIntent);

			return true;

		}

		else if (itemId == R.id.bookmark_edit)

		{

			Bundle bundle = new Bundle();

			bundle.putString(BookmarkActivity.PARAM_CONNECTION_REFERENCE, refStr);

			Intent bookmarkIntent =

			    new Intent(this.getApplicationContext(), BookmarkActivity.class);

			bookmarkIntent.putExtras(bundle);

			startActivity(bookmarkIntent);

			return true;

		}

		else if (itemId == R.id.bookmark_delete)

		{

			if (ConnectionReference.isManualBookmarkReference(refStr))

			{

				long id = ConnectionReference.getManualBookmarkId(refStr);

				GlobalApp.getManualBookmarkGateway().delete(id);

				manualBookmarkAdapter.remove(id);

				separatedListAdapter.notifyDataSetChanged();

			}

			else

			{

				assert false;

			}

			// clear super bar text

			superBarEditText.setText("");

			return true;

		}

		return false;

	}

	@Override protected void onResume()

	{

		super.onResume();

		Log.v(TAG, "HomeActivity.onResume");

		// create bookmark cursor adapter

		manualBookmarkAdapter = new BookmarkArrayAdapter(

		    this, R.layout.bookmark_list_item, GlobalApp.getManualBookmarkGateway().findAll());

		// add add bookmark item to manual adapter

		manualBookmarkAdapter.insert(addBookmarkPlaceholder, 0);

		// attach all adapters to the separatedListView adapter and assign it to the list view

		separatedListAdapter = new SeparatedListAdapter(this);

		separatedListAdapter.addSection(sectionLabelBookmarks, manualBookmarkAdapter);

		listViewBookmarks.setAdapter(separatedListAdapter);

		// if we have a filter text entered cause an update to be caused here

		String filter = superBarEditText.getText().toString();

		if (filter.length() > 0)

			superBarEditText.setText(filter);

	}

	@Override protected void onPause()

	{

		super.onPause();

		Log.v(TAG, "HomeActivity.onPause");

		// reset adapters

		listViewBookmarks.setAdapter(null);

		separatedListAdapter = null;

		manualBookmarkAdapter = null;

	}

	@Override public void onBackPressed()

	{

		// if back was pressed - ask the user if he really wants to exit

		if (ApplicationSettingsActivity.getAskOnExit(this))

		{

			final CheckBox cb = new CheckBox(this);

			cb.setChecked(!ApplicationSettingsActivity.getAskOnExit(this));

			cb.setText(R.string.dlg_dont_show_again);

			AlertDialog.Builder builder = new AlertDialog.Builder(this);

			builder.setTitle(R.string.dlg_title_exit)

			    .setMessage(R.string.dlg_msg_exit)

			    .setView(cb)

			    .setPositiveButton(R.string.yes,

			                       new DialogInterface.OnClickListener() {

				                       public void onClick(DialogInterface dialog, int which)

				                       {

					                       finish();

				                       }

			                       })

			    .setNegativeButton(R.string.no,

			                       new DialogInterface.OnClickListener() {

				                       public void onClick(DialogInterface dialog, int which)

				                       {

					                       dialog.dismiss();

				                       }

			                       })

			    .create()

			    .show();

		}

		else

		{

			super.onBackPressed();

		}

	}

	@Override protected void onSaveInstanceState(Bundle outState)

	{

		super.onSaveInstanceState(outState);

		outState.putString(PARAM_SUPERBAR_TEXT, superBarEditText.getText().toString());

	}

	@Override protected void onRestoreInstanceState(Bundle inState)

	{

		super.onRestoreInstanceState(inState);

		superBarEditText.setText(inState.getString(PARAM_SUPERBAR_TEXT));

	}

	@Override public boolean onCreateOptionsMenu(Menu menu)

	{

		MenuInflater inflater = getMenuInflater();

		inflater.inflate(R.menu.home_menu, menu);

		return true;

	}

	@Override public boolean onOptionsItemSelected(MenuItem item)

	{

		// refer to http://tools.android.com/tips/non-constant-fields why we can't use switch/case

		// here ..

		int itemId = item.getItemId();

		if (itemId == R.id.newBookmark)

		{

			Intent bookmarkIntent = new Intent(this, BookmarkActivity.class);

			startActivity(bookmarkIntent);

		}

		else if (itemId == R.id.appSettings)

		{

			Intent settingsIntent = new Intent(this, ApplicationSettingsActivity.class);

			startActivity(settingsIntent);

		}

		else if (itemId == R.id.help)

		{

			Intent helpIntent = new Intent(this, HelpActivity.class);

			startActivity(helpIntent);

		}

		else if (itemId == R.id.about)

		{

			Intent aboutIntent = new Intent(this, AboutActivity.class);

			startActivity(aboutIntent);

		}

		return true;

	}

	private class SuperBarTextWatcher implements TextWatcher

	{

		@Override public void afterTextChanged(Editable s)

		{

			if (separatedListAdapter != null)

			{

				String text = s.toString();

				if (text.length() > 0)

				{

					ArrayList<BookmarkBase> computers_list =

					    GlobalApp.getQuickConnectHistoryGateway().findHistory(text);

					computers_list.addAll(

					    GlobalApp.getManualBookmarkGateway().findByLabelOrHostnameLike(text));

					manualBookmarkAdapter.replaceItems(computers_list);

					QuickConnectBookmark qcBm = new QuickConnectBookmark();

					qcBm.setLabel(text);

					qcBm.setHostname(text);

					manualBookmarkAdapter.insert(qcBm, 0);

				}

				else

				{

					manualBookmarkAdapter.replaceItems(

					    GlobalApp.getManualBookmarkGateway().findAll());

					manualBookmarkAdapter.insert(addBookmarkPlaceholder, 0);

				}

				separatedListAdapter.notifyDataSetChanged();

			}

		}

		@Override public void beforeTextChanged(CharSequence s, int start, int count, int after)

		{

		}

		@Override public void onTextChanged(CharSequence s, int start, int before, int count)

		{

		}

	}

}