package nextrek.minstrek.activity;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import nextrek.minstrek.R;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.AssetManager;
import android.os.Bundle;
import android.text.Html;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class CreditsActivity extends Activity {

    static String credits;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.credits);
        Button closeButton = (Button) findViewById(R.id.closeButton);
        closeButton.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                Intent newPageIntent = new Intent(getApplicationContext(), BookPageActivity.class);
                // newPageIntent.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS | Intent.FLAG_ACTIVITY_CLEAR_TOP);
                startActivity(newPageIntent);
                finish();
                overridePendingTransition(android.R.anim.slide_in_left, android.R.anim.slide_out_right);
            }
        });

        if (credits == null) {
            credits = readCredits();
        }

        TextView creditsText = (TextView) findViewById(R.id.creditsText);

        creditsText.setText(Html.fromHtml(credits));

    }

    protected String readCredits() {
        Context context = getApplicationContext();
        String bookName = null;
        try {
            String[] fileList = context.getAssets().list("book");
            if (fileList.length > 0) {
                bookName = "book" + File.separatorChar + fileList[0];
            }
        } catch (IOException e1) {
            e1.printStackTrace();
            finish();
        }

        return readStringFile(bookName + File.separatorChar + "credits.txt");
    }

    protected String readStringFile(String filename) {
        Context context = getApplicationContext();

        InputStream fis = null;
        try {
            fis = context.getAssets().open(filename, AssetManager.ACCESS_STREAMING); // context.openFileInput(strName);

            return readAsString(fis);
        } catch (IOException e) {
            e.printStackTrace();
            finish();
        } finally {
            try {
                if (fis != null) {
                    fis.close();
                }
            } catch (IOException e) {

            }
        }

        return null;
    }

    protected static String readAsString(InputStream in) throws IOException {
        StringBuilder sb = new StringBuilder();

        InputStreamReader isr = new InputStreamReader(in);
        try {
            BufferedReader r = new BufferedReader(isr, 8192);
            try {
                for (String line = r.readLine(); line != null; line = r.readLine()) {
                    sb.append(line);
                }
                return sb.toString();
            } finally {
                if (r != null) {
                    r.close();
                    r = null;
                }
            }
        } finally {
            if (isr != null) {
                isr.close();
                isr = null;
            }
        }
    }
}