package in.celest.xash3d;

import android.app.*;
import android.content.*;
import android.graphics.*;
import android.graphics.drawable.*;
import android.net.*;
import android.os.*;
import android.text.*;
import android.text.method.*;
import android.text.style.*;
import android.util.*;
import android.view.*;
import android.widget.*;
import in.celest.xash3d.hl.*;
import java.io.*;
import java.net.*;
import org.json.*;
import android.preference.*;
import su.xash.fwgslib.*;

public class LauncherActivity extends Activity {
   // public final static String ARGV = "in.celest.xash3d.MESSAGE";
   	public final static int sdk = FWGSLib.sdk;
	public final static String UPDATE_LINK = "https://api.github.com/repos/FWGS/xash3d-android-project/releases"; // releases/latest doesn't return prerelease and drafts
	static EditText cmdArgs;
	static EditText resPath;
	static ToggleButton useVolume;
	static ToggleButton resizeWorkaround;
	static CheckBox	checkUpdates;
	//static CheckBox updateToBeta;
	static CheckBox immersiveMode;
	static SharedPreferences mPref;
	static Spinner pixelSpinner;
	static TextView tvResPath;
	static TextView resResult;
	static EditText resScale, resWidth, resHeight;
	static RadioButton radioScale, radioCustom;
	static RadioGroup scaleGroup;
	static CheckBox resolution;
	
	static int mEngineWidth, mEngineHeight;
	
	public static void changeButtonsStyle( ViewGroup parent )
	{
		if( sdk >= 21 )
			return;
		
		for( int i = parent.getChildCount() - 1; i >= 0; i-- ) 
		{
			try
			{
				final View child = parent.getChildAt(i);
				
				if( child == null )
					continue;
				
				if( child instanceof ViewGroup )
				{
					changeButtonsStyle((ViewGroup) child);
					// DO SOMETHING WITH VIEWGROUP, AFTER CHILDREN HAS BEEN LOOPED
				} 
				else if( child instanceof Button )
				{
					final Button b = (Button)child;
					final Drawable bg = b.getBackground();
					if(bg!= null)bg.setAlpha( 96 );
					b.setTextColor( 0xFFFFFFFF );
					b.setTextSize( 15f );
					//b.setText(b.getText().toString().toUpperCase());
					b.setTypeface( b.getTypeface(),Typeface.BOLD );
				}
				else if( child instanceof EditText )
				{
					final EditText b = ( EditText )child;
					b.setBackgroundColor( 0xFF353535 );
					b.setTextColor( 0xFFFFFFFF );
					b.setTextSize( 15f );
				}
			}
			catch( Exception e )
			{
			}
        }
    }
    
    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
		super.onCreate(savedInstanceState);
		this.requestWindowFeature(Window.FEATURE_NO_TITLE);
		//super.setTheme( 0x01030005 );
		if ( sdk >= 21 )
			super.setTheme( 0x01030224 );
		else super.setTheme( 0x01030005 );
		
		if( CertCheck.dumbAntiPDALifeCheck( this ) )
		{
			finish();
			return;
		}
		
		setContentView(R.layout.activity_launcher);

		TabHost tabHost = (TabHost) findViewById(R.id.tabhost);

		tabHost.setup();
		
		TabHost.TabSpec tabSpec;
		tabSpec = tabHost.newTabSpec("tabtag1");
		tabSpec.setIndicator(getString(R.string.text_tab1));
		tabSpec.setContent(R.id.tab1);
		tabHost.addTab(tabSpec);

		tabSpec = tabHost.newTabSpec("tabtag2");
		tabSpec.setIndicator(getString(R.string.text_tab2));
		tabSpec.setContent(R.id.tab2);
		tabHost.addTab(tabSpec);
		if( sdk < 21 )
		{
			try
			{
				tabHost.invalidate();
				for(int i = 0; i < tabHost.getTabWidget().getChildCount(); i++)
				{
				tabHost.getTabWidget().getChildAt(i).getBackground().setAlpha(96);
				tabHost.getTabWidget().getChildAt(i).getLayoutParams().height = (int) (40 * this.getResources().getDisplayMetrics().density);
				}
			}
			catch(Exception e){}
		}
		

		mPref        = getSharedPreferences("engine", 0);
		cmdArgs      = (EditText) findViewById(R.id.cmdArgs);
		useVolume    = (ToggleButton) findViewById( R.id.useVolume );
		resPath      = (EditText) findViewById( R.id.cmdPath );
		checkUpdates = (CheckBox)findViewById( R.id.check_updates );
		//updateToBeta = (CheckBox)findViewById( R.id.check_betas );
		pixelSpinner = (Spinner) findViewById( R.id.pixelSpinner );
		resizeWorkaround = (ToggleButton) findViewById( R.id.enableResizeWorkaround );
		tvResPath    = (TextView) findViewById( R.id.textView_path );
		immersiveMode = (CheckBox) findViewById( R.id.immersive_mode );
		resolution = (CheckBox) findViewById(R.id.resolution);
		resWidth = (EditText) findViewById(R.id.resolution_width);
		resHeight = (EditText) findViewById(R.id.resolution_height);
		resScale = (EditText) findViewById(R.id.resolution_scale);
		radioCustom = (RadioButton) findViewById(R.id.resolution_custom_r);
		radioScale = (RadioButton) findViewById(R.id.resolution_scale_r);
		scaleGroup = (RadioGroup) findViewById( R.id.scale_group );
		resResult = (TextView) findViewById( R.id.resolution_result );
		
		final String[] list = {
			"32 bit (RGBA8888)",
			"24 bit (RGB888)",
			"16 bit (RGB565)",
			"16 bit (RGBA5551)",
			"16 bit (RGBA4444)",
			"8 bit (RGB332)"
		};
		ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_spinner_dropdown_item, list);
		adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
		pixelSpinner.setAdapter(adapter);
		Button selectFolderButton = ( Button ) findViewById( R.id.button_select );
		selectFolderButton.setOnClickListener(new View.OnClickListener()
		{
			@Override
			public void onClick(View v) 
			{
				selectFolder(v);
			}
		});
		((Button)findViewById( R.id.button_launch )).setOnClickListener(new View.OnClickListener()
		{
			@Override
			public void onClick(View v) 
			{
				startXash(v);
			}
		});
		((Button)findViewById( R.id.button_shortcut )).setOnClickListener(new View.OnClickListener()
		{
			@Override
			public void onClick(View v) 
			{
				createShortcut(v);
			}
		});
		((Button)findViewById( R.id.button_about )).setOnClickListener(new View.OnClickListener()
		{
			@Override
			public void onClick(View v) 
			{
				aboutXash(v);
			}
		});
		useVolume.setChecked(mPref.getBoolean("usevolume",true));
		checkUpdates.setChecked(mPref.getBoolean("check_updates",true));
		//updateToBeta.setChecked(mPref.getBoolean("check_betas", false));
		updatePath(mPref.getString("basedir", FWGSLib.getDefaultXashPath() ) );
		cmdArgs.setText(mPref.getString("argv","-dev 3 -log"));
		pixelSpinner.setSelection(mPref.getInt("pixelformat", 0));
		resizeWorkaround.setChecked(mPref.getBoolean("enableResizeWorkaround", true));
		
		boolean enableResolutionChange = mPref.getBoolean("resolution_fixed", false );
		resolution.setChecked( enableResolutionChange );
		
		DisplayMetrics metrics = new DisplayMetrics();
		getWindowManager().getDefaultDisplay().getMetrics(metrics);
		
		// Swap resolution here, because engine is always(should be always) run in landscape mode
		if( FWGSLib.isLandscapeOrientation( this ) )
		{
			mEngineWidth = metrics.widthPixels;
			mEngineHeight = metrics.heightPixels;
		}
		else
		{
			mEngineWidth = metrics.heightPixels;
			mEngineHeight = metrics.widthPixels;
		}		
		
		resWidth.setText(String.valueOf(mPref.getInt("resolution_width", mEngineWidth )));
		resHeight.setText(String.valueOf(mPref.getInt("resolution_height", mEngineHeight )));
		resScale.setText(String.valueOf(mPref.getFloat("resolution_scale", 2.0f)));
		
		resWidth.addTextChangedListener( resTextChangeWatcher );
		resHeight.addTextChangedListener( resTextChangeWatcher );
		resScale.addTextChangedListener( resTextChangeWatcher );
		
		if( mPref.getBoolean("resolution_custom", false) )
			radioCustom.setChecked(true);
		else radioScale.setChecked(true);
		
		radioCustom.setOnCheckedChangeListener( new CompoundButton.OnCheckedChangeListener()
		{
			@Override
			public void onCheckedChanged( CompoundButton v, boolean isChecked )
			{
				updateResolutionResult();
				toggleResolutionFields();
			}
		} );
		resolution.setOnCheckedChangeListener( new CompoundButton.OnCheckedChangeListener()
		{
			@Override
			public void onCheckedChanged( CompoundButton v, boolean isChecked )
			{
				hideResolutionSettings( !isChecked );
			}
		});
		
		if( sdk >= 19 )
		{
			immersiveMode.setChecked(mPref.getBoolean("immersive_mode", true));
		}
		else
		{
			immersiveMode.setVisibility(View.GONE); // not available
		}
				
		resPath.setOnFocusChangeListener( new View.OnFocusChangeListener()
		{
			@Override
			public void onFocusChange(View v, boolean hasFocus)
			{
				updatePath( resPath.getText().toString() );
				
				// I know what I am doing, so don't ask me about folder!
				XashActivity.setFolderAsk( LauncherActivity.this, false );
			}
		} );

		if( !XashConfig.GP_VERSION && // disable autoupdater for Google Play
			mPref.getBoolean("check_updates", true))
		{
			new CheckUpdate(true, false).execute(UPDATE_LINK);
		}
		changeButtonsStyle((ViewGroup)tabHost.getParent());
		hideResolutionSettings( !enableResolutionChange );
		updateResolutionResult();
		toggleResolutionFields();
		if( !mPref.getBoolean("successfulRun",false) )
			showFirstRun();
	}

	void updatePath( String text )
	{
		tvResPath.setText(getString(R.string.text_res_path) + ":\n" + text );
		resPath.setText(text);
	}
	
	void hideResolutionSettings( boolean hide )
	{
		scaleGroup.setVisibility( hide ? View.GONE : View.VISIBLE );
	}
		
	TextWatcher resTextChangeWatcher = new TextWatcher()
	{
		@Override
		public void afterTextChanged(Editable s){}
		
		@Override
		public void beforeTextChanged(CharSequence s, int start, int count, int after){}
		
		@Override
		public void onTextChanged(CharSequence s, int start, int before, int count)
		{
			updateResolutionResult();
		}
	};
	
	void updateResolutionResult( )
	{
		int w, h;
		if( radioCustom.isChecked() )
		{
			w = getCustomEngineWidth();
			h = getCustomEngineHeight();
		}
		else
		{
			final float scale = getResolutionScale();
			w = (int)((float)mEngineWidth / scale);
			h = (int)((float)mEngineHeight / scale);
		}
		
		resResult.setText( getString( R.string.resolution_result ) + w + "x" + h );
	}
	
	void toggleResolutionFields()
	{
		boolean isChecked = radioCustom.isChecked();
		resWidth.setEnabled( isChecked );
		resHeight.setEnabled( isChecked );
		resScale.setEnabled( !isChecked );
	}
	
	float getResolutionScale()
	{
		return FWGSLib.atof( resScale.getText().toString(), 1.0f );
	}
	
	int getCustomEngineHeight()
	{
		return FWGSLib.atoi( resHeight.getText().toString(), mEngineHeight );
	}
	
	int getCustomEngineWidth()
	{
		return FWGSLib.atoi( resWidth.getText().toString(), mEngineWidth );
	}
	
    public void startXash(View view)
    {
		Intent intent = new Intent(this, XashActivity.class);
		intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

		SharedPreferences.Editor editor = mPref.edit();
		editor.putString("argv", cmdArgs.getText().toString());
		editor.putBoolean("usevolume",useVolume.isChecked());
		editor.putString("basedir", resPath.getText().toString());
		editor.putInt("pixelformat", pixelSpinner.getSelectedItemPosition());
		editor.putBoolean("enableResizeWorkaround",resizeWorkaround.isChecked());
		editor.putBoolean("check_updates", checkUpdates.isChecked());
		editor.putBoolean("resolution_fixed", resolution.isChecked());
		editor.putBoolean("resolution_custom", radioCustom.isChecked());
		editor.putFloat("resolution_scale", getResolutionScale() );
		editor.putInt("resolution_width", getCustomEngineWidth() );
		editor.putInt("resolution_height", getCustomEngineHeight() );
		
		if( sdk >= 19 )
			editor.putBoolean("immersive_mode", immersiveMode.isChecked());
		else
			editor.putBoolean("immersive_mode", false); // just in case...
		editor.commit();
		startActivity(intent);
    }

	public void aboutXash(View view)
	{
		final Activity a = this;
		this.runOnUiThread(new Runnable() 
		{
			public void run()
			{
				final Dialog dialog = new Dialog(a);
				dialog.setContentView(R.layout.about);
				dialog.setCancelable(true);
				dialog.show();
				TextView tView6 = (TextView) dialog.findViewById(R.id.textView6);
				tView6.setMovementMethod(LinkMovementMethod.getInstance());
				((Button)dialog.findViewById( R.id.button_about_ok )).setOnClickListener(new View.OnClickListener(){
	       			@Override
	    			public void onClick(View v) {
	    				dialog.cancel();
					}
				});
				((Button)dialog.findViewById( R.id.show_firstrun )).setOnClickListener(new View.OnClickListener(){
						@Override
						public void onClick(View v) {
							dialog.cancel();
							Intent intent = new Intent(a, XashTutorialActivity.class);
							startActivity(intent);
						}
					});

			}
		});
	}

	int m_iFirstRunCounter = 0;
	public void showFirstRun()
	{
		if( m_iFirstRunCounter < 0 )
			m_iFirstRunCounter = 0;
		
		final int titleres = getResources().getIdentifier("page_title" + String.valueOf(m_iFirstRunCounter), "string", getPackageName());
		final int contentres = getResources().getIdentifier("page_content" + String.valueOf(m_iFirstRunCounter), "string", getPackageName());
		final Activity a = this;
		if( titleres == 0 || contentres == 0 )
			return;
		this.runOnUiThread(new Runnable() 
		{
			public void run()
			{
				final TextView content = new TextView(LauncherActivity.this);
				content.setMovementMethod(LinkMovementMethod.getInstance());
				AlertDialog.Builder builder = new AlertDialog.Builder(a)
					.setTitle(titleres)
					.setView(content);
				DialogInterface.OnClickListener nextClick = new DialogInterface.OnClickListener()
				{
					public void onClick(DialogInterface d, int p1)
					{
						m_iFirstRunCounter++;
						showFirstRun();
					}
				};
				DialogInterface.OnClickListener prevClick = new DialogInterface.OnClickListener()
				{
					public void onClick(DialogInterface d, int p1)
					{
						m_iFirstRunCounter--;
						showFirstRun();
					}
				};
				
				if( sdk >= 21 )
				{
					builder.setPositiveButton(R.string.next, nextClick);
					if( m_iFirstRunCounter > 0 )
					{
						builder.setNegativeButton(R.string.prev, prevClick);
					}
					builder.setNeutralButton(R.string.skip, null);
				}
				else
				{
					builder.setNegativeButton(R.string.next, nextClick);
					if( m_iFirstRunCounter > 0 )
					{
						builder.setNeutralButton(R.string.prev, prevClick);
					}
					builder.setPositiveButton(R.string.skip, null);
				}
				builder.setCancelable(false);
				final AlertDialog dialog = builder.create();
				dialog.show();
				content.setText(Html.fromHtml(getResources().getText(contentres).toString(),
					new Html.ImageGetter()
					{
						@Override
						public Drawable getDrawable(String source)
						{
							int dourceId = getApplicationContext().getResources().getIdentifier(source, "drawable", getPackageName());
							Drawable drawable = getApplicationContext().getResources().getDrawable(dourceId);
							final int visibleWidth = dialog.getWindow().getDecorView().getWidth();
							final int picWidth = drawable.getIntrinsicWidth();
							final int picHeight = drawable.getIntrinsicHeight();
							
							final int calcWidth = visibleWidth < picWidth ? visibleWidth : picWidth;
							// final int calcHeight = (int)((float)picHeight * ((float)calcWidth / (float)picWidth));
							final int calcHeight = (int)((float)picHeight);
							
							drawable.setBounds( 0, 0, calcWidth, calcHeight);
							return drawable;
						}
					}, null));
			}
		});
	}

	public void selectFolder(View view)
	{
		Intent intent = new Intent(this, in.celest.xash3d.FPicker.class);
		//intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		//Intent intent = new Intent("android.intent.action.OPEN_DOCUMENT_TREE");
		startActivityForResult(intent, 42);
		resPath.setEnabled(false);
		XashActivity.setFolderAsk( this, false );
	}

	public void onActivityResult(int requestCode, int resultCode, Intent resultData) 
	{
		if (resultCode == RESULT_OK) 
		{
			try	
			{
				if( resPath == null )
					return;
				updatePath(resultData.getStringExtra("GetPath"));
				resPath.setEnabled( true );
			}
			catch(Exception e)
			{
				e.printStackTrace();
			}
		}
		resPath.setEnabled(true);
	}

	public void createShortcut(View view)
	{
		Intent intent = new Intent(this, ShortcutActivity.class);
		intent.putExtra( "basedir", resPath.getText().toString() );
		intent.putExtra( "name", "Xash3D" );
		intent.putExtra( "argv", cmdArgs.getText().toString() );
		startActivity(intent);
	}

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        //getMenuInflater().inflate(R.menu.menu_launcher, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        /*if (id == R.id.action_settings) {
            return true;
        }*/

        return super.onOptionsItemSelected(item);
    }

	private class CheckUpdate extends AsyncTask<String, Void, String> {
		InputStream is = null;
		ByteArrayOutputStream os = null;
		boolean mSilent;
		boolean mBeta;

		public CheckUpdate( boolean silent, boolean beta )
		{
			mSilent = silent;
			mBeta = beta;
		}

		protected String doInBackground(String... urls) 
		{
			try
			{
				URL url = new URL(urls[0]);
				is = url.openConnection().getInputStream();
				os = new ByteArrayOutputStream();

				byte[] buffer = new byte[8196];
				int len;

				while ((len = is.read(buffer)) > 0)
				{
					os.write(buffer, 0, len);
				}
				os.flush();
				
				return os.toString();
			}
			catch(Exception e)
			{
				e.printStackTrace();
				return null;
			}
		}

		protected void onPostExecute(String result)
		{
			JSONArray releases = null;
			try
			{
				if (is != null)
				{
					is.close();
					is = null;
				}
			}
			catch(Exception e)
			{
				e.printStackTrace();
			}

			try
			{
				if (os != null) 
				{
					releases = new JSONArray(os.toString());
					os.close();
					os = null;
				}
			}
			catch(Exception e)
			{
				e.printStackTrace();
				return;
			}
			
			if( releases == null )
				return;
			
			for( int i = 0; i < releases.length(); i++ )
			{
				final JSONObject obj;
				try 
				{
					obj = releases.getJSONObject(i);

					final String version, url, name;
					final boolean beta = obj.getBoolean("prerelease");

					if( beta && !mBeta )
						continue;

					version = obj.getString("tag_name");
					url = obj.getString("html_url");
					name = obj.getString("name");
					Log.d("Xash", "Found: " + version +
						", I: " + getString(R.string.version_string));

					// this is an update
					if( getString(R.string.version_string).compareTo(version) < 0 )
					{
						String dialog_message = String.format(getString(R.string.update_message), name);
						AlertDialog.Builder builder = new AlertDialog.Builder(getBaseContext());
						builder.setMessage(dialog_message)
							.setPositiveButton(R.string.update, new DialogInterface.OnClickListener()
							{
								public void onClick(DialogInterface dialog, int id)
								{
									final Intent intent = new Intent(Intent.ACTION_VIEW).setData(Uri.parse(url));
									startActivity(intent);
								}
							})
							.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener()
								{ public void onClick(DialogInterface dialog, int id) {} } );
						builder.create().show();
					}
					else if( !mSilent )
					{
						Toast.makeText(getBaseContext(), R.string.no_updates, Toast.LENGTH_SHORT).show();
					}

					// No need to check other releases, so we will stop here.
					break;
				}
				catch(Exception e)
				{
					e.printStackTrace();
					continue;
				}
			}
		}
	}
}