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");
    }

}
