/*

 * Copyright (C) 2008 Google Inc.

 * 

 * Licensed under the Apache License, Version 2.0 (the "License"); you may not

 * use this file except in compliance with the License. You may obtain a copy of

 * the License at

 * 

 * http://www.apache.org/licenses/LICENSE-2.0

 * 

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT

 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

 * License for the specific language governing permissions and limitations under

 * the License.

 */



package com.google.tts;



import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.net.URL;

import java.net.URLConnection;

import java.util.Enumeration;

import java.util.zip.ZipEntry;

import java.util.zip.ZipFile;



import android.app.Activity;

import android.content.Intent;

import android.os.Build;

import android.os.Bundle;



/**

 * Enables the user to configure TTS settings. This activity has not been

 * implemented yet.

 * 

 * @author clchen@google.com (Charles L. Chen)

 */

public class ConfigurationManager extends Activity {



    @Override

    public void onCreate(Bundle icicle) {

        super.onCreate(icicle);

        if (!allFilesExist()) {

            setContentView(R.layout.downloading);

            (new Thread(new dataDownloader())).start();

        } else {

            int version = Integer.parseInt(Build.VERSION.SDK);

            Intent intent = new Intent(this, TextToSpeechSettings.class);

            if (version < 4) {

                intent = new Intent(this, OldPrefsActivity.class);

            }

            startActivityForResult(intent, 42);

            finish();

        }

    }



    public class dataDownloader implements Runnable {

        public void run() {

            downloadEspeakData();

            finish();

        }

    }



    public static boolean allFilesExist() {

        String espeakDataDirStr = "/sdcard/espeak-data/";

        String[] datafiles = {

                "af_dict", "config", "cs_dict", "cy_dict", "de_dict", "el_dict", "en_dict",

                "eo_dict", "es_dict", "fi_dict", "fr_dict", "grc_dict", "hbs_dict", "hi_dict",

                "hu_dict", "id_dict", "is_dict", "it_dict", "jbo_dict", "ku_dict", "la_dict",

                "mk_dict", "nl_dict", "no_dict", "phondata", "phonindex", "phontab", "pl_dict",

                "pt_dict", "ro_dict", "ru_dict", "sk_dict", "sv_dict", "sw_dict", "ta_dict",

                "tr_dict", "vi_dict", "zh_dict", "zhy_dict", "mbrola/dummyfile",

                "mbrola_ph/af1_phtrans", "mbrola_ph/ca1_phtrans", "mbrola_ph/cr1_phtrans",

                "mbrola_ph/cs_phtrans", "mbrola_ph/de2_phtrans", "mbrola_ph/de4_phtrans",

                "mbrola_ph/de6_phtrans", "mbrola_ph/en1_phtrans", "mbrola_ph/es_phtrans",

                "mbrola_ph/es4_phtrans", "mbrola_ph/fr1_phtrans", "mbrola_ph/gr2_phtrans",

                "mbrola_ph/grc-de6_phtrans", "mbrola_ph/hu1_phtrans", "mbrola_ph/id1_phtrans",

                "mbrola_ph/in1_phtrans", "mbrola_ph/it3_phtrans", "mbrola_ph/la1_phtrans",

                "mbrola_ph/nl_phtrans", "mbrola_ph/pl1_phtrans", "mbrola_ph/pt_phtrans",

                "mbrola_ph/ptbr_phtrans", "mbrola_ph/ptbr4_phtrans", "mbrola_ph/ro1_phtrans",

                "mbrola_ph/sv_phtrans", "mbrola_ph/sv2_phtrans", "mbrola_ph/us_phtrans",

                "mbrola_ph/us3_phtrans", "soundicons/dummyfile", "voices/af", "voices/bs",

                "voices/cs", "voices/cy", "voices/de", "voices/default", "voices/el", "voices/eo",

                "voices/es", "voices/es-la", "voices/fi", "voices/fr", "voices/fr-be",

                "voices/grc", "voices/hi", "voices/hr", "voices/hu", "voices/id", "voices/is",

                "voices/it", "voices/jbo", "voices/ku", "voices/la", "voices/mk", "voices/nl",

                "voices/no", "voices/pl", "voices/pt", "voices/pt-pt", "voices/ro", "voices/ru",

                "voices/sk", "voices/sr", "voices/sv", "voices/sw", "voices/ta", "voices/tr",

                "voices/vi", "voices/zh", "voices/zhy", "voices/!v/croak", "voices/!v/f1",

                "voices/!v/f2", "voices/!v/f3", "voices/!v/f4", "voices/!v/m1", "voices/!v/m2",

                "voices/!v/m3", "voices/!v/m4", "voices/!v/m5", "voices/!v/m6",

                "voices/!v/whisper", "voices/en/en", "voices/en/en-n", "voices/en/en-r",

                "voices/en/en-rp", "voices/en/en-sc", "voices/en/en-wi", "voices/en/en-wm",

                "voices/mb/mb-af1", "voices/mb/mb-af1-en", "voices/mb/mb-br1", "voices/mb/mb-br3",

                "voices/mb/mb-br4", "voices/mb/mb-cr1", "voices/mb/mb-cz2", "voices/mb/mb-de2",

                "voices/mb/mb-de4", "voices/mb/mb-de4-en", "voices/mb/mb-de5",

                "voices/mb/mb-de5-en", "voices/mb/mb-de6", "voices/mb/mb-de6-grc",

                "voices/mb/mb-de7", "voices/mb/mb-en1", "voices/mb/mb-es1", "voices/mb/mb-es2",

                "voices/mb/mb-fr1", "voices/mb/mb-fr1-en", "voices/mb/mb-fr4",

                "voices/mb/mb-fr4-en", "voices/mb/mb-gr2", "voices/mb/mb-gr2-en",

                "voices/mb/mb-hu1", "voices/mb/mb-hu1-en", "voices/mb/mb-id1", "voices/mb/mb-it3",

                "voices/mb/mb-it4", "voices/mb/mb-la1", "voices/mb/mb-nl2", "voices/mb/mb-nl2-en",

                "voices/mb/mb-pl1", "voices/mb/mb-pl1-en", "voices/mb/mb-ro1",

                "voices/mb/mb-ro1-en", "voices/mb/mb-sw1", "voices/mb/mb-sw1-en",

                "voices/mb/mb-sw2", "voices/mb/mb-sw2-en", "voices/mb/mb-us1", "voices/mb/mb-us2",

                "voices/mb/mb-us3"

        };



        File espeakDataDir = new File(espeakDataDirStr);

        boolean directoryExists = espeakDataDir.isDirectory();



        if (!directoryExists) {

            return false;

        } else {

            for (int i = 0; i < datafiles.length; i++) {

                File tempFile = new File(espeakDataDirStr + datafiles[i]);

                if (!tempFile.exists()) {

                    for (int j = 0; j < datafiles.length; j++) {

                        File delFile = new File(espeakDataDirStr + datafiles[j]);

                        delFile.delete();

                    }

                    return false;

                }

            }

        }

        return true;

    }



    public static void downloadEspeakData() {

        try {

            // Make sure the SD card is writable

            if (!new File("/sdcard/").canWrite()) {

                return;

            }



            // Create the espeak-data directory

            File espeakDataDir = new File("/sdcard/espeak-data/");

            espeakDataDir.mkdir();



            // Download the espeak-data zip file

            String fileUrl = "http://eyes-free.googlecode.com/svn/trunk/thirdparty/espeak-data.zip";

            fileUrl = (new URL(new URL(fileUrl), fileUrl)).toString();

            URL url = new URL(fileUrl);

            URLConnection cn = url.openConnection();

            cn.connect();

            InputStream stream = cn.getInputStream();



            File dlFile = new File("/sdcard/espeak-data/data.zip");

            dlFile.createNewFile();

            FileOutputStream out = new FileOutputStream(dlFile);



            byte buf[] = new byte[16384];

            do {

                int numread = stream.read(buf);

                if (numread <= 0) {

                    break;

                } else {

                    out.write(buf, 0, numread);

                }

            } while (true);



            stream.close();

            out.close();



            // Unzip into the espeak-data directory on the SD card

            ZipFile zip = new ZipFile("/sdcard/espeak-data/data.zip");

            Enumeration<? extends ZipEntry> zippedFiles = zip.entries();

            while (zippedFiles.hasMoreElements()) {

                ZipEntry entry = zippedFiles.nextElement();

                if (entry.isDirectory()) {

                    File newDir = new File(espeakDataDir + entry.getName());

                    newDir.mkdir();

                } else {

                    InputStream is = zip.getInputStream(entry);

                    String name = entry.getName();

                    File outputFile = new File("/sdcard/espeak-data/" + name);

                    String outputPath = outputFile.getCanonicalPath();

                    name = outputPath.substring(outputPath.lastIndexOf("/") + 1);

                    outputPath = outputPath.substring(0, outputPath.lastIndexOf("/"));

                    File outputDir = new File(outputPath);

                    outputDir.mkdirs();

                    outputFile = new File(outputPath, name);

                    outputFile.createNewFile();

                    out = new FileOutputStream(outputFile);



                    buf = new byte[16384];

                    do {

                        int numread = is.read(buf);

                        if (numread <= 0) {

                            break;

                        } else {

                            out.write(buf, 0, numread);

                        }

                    } while (true);



                    is.close();

                    out.close();

                }

            }

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

}