package com.freerdp.freerdpcore.presentation;

import android.content.pm.PackageManager;

import android.content.res.Configuration;

import android.nfc.FormatException;

import android.os.Build;

import android.os.Bundle;

import android.support.v4.text.TextUtilsCompat;

import android.support.v7.app.AppCompatActivity;

import android.util.Log;

import android.webkit.WebSettings;

import android.webkit.WebView;

import com.freerdp.freerdpcore.R;

import com.freerdp.freerdpcore.services.LibFreeRDP;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.util.Formatter;

import java.util.IllegalFormatException;

import java.util.Locale;

public class AboutActivity extends AppCompatActivity

{

	private static final String TAG = AboutActivity.class.toString();

	private WebView mWebView;

	@Override protected void onCreate(Bundle savedInstanceState)

	{

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_about);

		mWebView = (WebView)findViewById(R.id.activity_about_webview);

	}

	@Override protected void onResume()

	{

		populate();

		super.onResume();

	}

	private void populate()

	{

		StringBuilder total = new StringBuilder();

		String filename = "about_phone.html";

		if ((getResources().getConfiguration().screenLayout &

		     Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_LARGE)

		{

			filename = "about.html";

		}

		Locale def = Locale.getDefault();

		String prefix = def.getLanguage().toLowerCase(def);

		String dir = prefix + "_about_page/";

		String file = dir + filename;

		InputStream is;

		try

		{

			is = getAssets().open(file);

			is.close();

		}

		catch (IOException e)

		{

			Log.e(TAG, "Missing localized asset " + file, e);

			dir = "about_page/";

			file = dir + filename;

		}

		try

		{

			BufferedReader r = new BufferedReader(new InputStreamReader(getAssets().open(file)));

			try

			{

				String line;

				while ((line = r.readLine()) != null)

				{

					total.append(line);

					total.append("\n");

				}

			}

			finally

			{

				r.close();

			}

		}

		catch (IOException e)

		{

			Log.e(TAG, "Could not read about page " + file, e);

		}

		// append FreeRDP core version to app version

		// get app version

		String version;

		try

		{

			version = getPackageManager().getPackageInfo(getPackageName(), 0).versionName;

		}

		catch (PackageManager.NameNotFoundException e)

		{

			version = "unknown";

		}

		version = version + " (" + LibFreeRDP.getVersion() + ")";

		WebSettings settings = mWebView.getSettings();

		settings.setDomStorageEnabled(true);

		settings.setUseWideViewPort(true);

		settings.setLoadWithOverviewMode(true);

		settings.setSupportZoom(true);

		final String base = "file:///android_asset/" + dir;

		final String rawHtml = total.toString();

		final String html = rawHtml.replaceAll("%AFREERDP_VERSION%", version)

		                        .replaceAll("%SYSTEM_VERSION%", Build.VERSION.RELEASE)

		                        .replaceAll("%DEVICE_MODEL%", Build.MODEL);

		mWebView.loadDataWithBaseURL(base, html, "text/html", null, "about:blank");

	}

}