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");

    }

}