package com.nasageek.utexasutilities;
import android.content.Context;
import android.widget.ImageView;
import android.widget.Toast;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.Response;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.util.UUID;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Utility {
private static String sID = null;
private static final String INSTALLATION = "UUID";
public static String id(Context context) {
if (sID == null) {
File installation = new File(context.getFilesDir(), INSTALLATION);
try {
if (!installation.exists()) {
writeInstallationFile(installation);
}
sID = readInstallationFile(installation);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
return sID;
}
private static String readInstallationFile(File installation) throws IOException {
RandomAccessFile f = new RandomAccessFile(installation, "r");
byte[] bytes = new byte[(int) f.length()];
f.readFully(bytes);
f.close();
return new String(bytes);
}
private static void writeInstallationFile(File installation) throws IOException {
FileOutputStream out = new FileOutputStream(installation);
String id = UUID.randomUUID().toString();
out.write(id.getBytes());
out.close();
}
public static void updateBusStops(Context con) throws IOException {
new StopParseTask(con).execute();
}
// TODO: check resulting files against regex to confirm they are correct?
static class StopParseTask extends AsyncTask<Void, Void, Void> {
String errorText;
Context con;
public StopParseTask(Context con) {
this.con = con;
}
@Override
protected void onPreExecute() {
Toast.makeText(con, "Fetching stops", Toast.LENGTH_SHORT).show();
}
@Override
protected Void doInBackground(Void... v) {
// 675, 684, 685 were retired on 1/7/14
// 651, 652 retired in 8/14
int[] routes = {
640, 641, 642, 653, 656, 661, 663, 670, 671, 672, 680, 681
};
// FileOutputStream fos = con.openFileOutput("stops",
// Context.MODE_PRIVATE);
File folder = con.getDir("stops", Context.MODE_PRIVATE);
OkHttpClient client = UTilitiesApplication.getInstance(con).getHttpClient();
for (int route : routes) {
// BufferedOutputStream bos = new
// BufferedOutputStream(con.openFileOutput(route+"_stops.txt",
// Context.MODE_PRIVATE));
String reqUrl = "http://www.capmetro.org/schedulemap-ut.aspx?f1="
+ route + "&map=stops";
Request request = new Request.Builder()
.url(reqUrl)
.build();
String pagedata;
try {
Response response = client.newCall(request).execute();
pagedata = response.body().string();
} catch (IOException e) {
errorText = "Connection to CapMetro failed.";
e.printStackTrace();
cancel(true);
return null;
}
File stopsfile = new File(folder, route + "_stops.txt");
BufferedOutputStream bos;
try {
bos = new BufferedOutputStream(new FileOutputStream(stopsfile));
} catch (FileNotFoundException e) {
errorText = "Stop files could not be created.";
cancel(true);
e.printStackTrace();
return null;
}
// out of date as of 7/27/2013
// Pattern scriptPattern =
// Pattern.compile("<script type=\"text/javascript\">.*?/\\* <!\\[CDATA\\[ \\*/.*function initMap()",
// Pattern.DOTALL);
Pattern scriptPattern = Pattern.compile("var markers = \\[(.*?)\\];",
Pattern.DOTALL);
Matcher scriptMatcher = scriptPattern.matcher(pagedata);
if (scriptMatcher.find()) {
String script = scriptMatcher.group(1);
// out of date as of 9/1/2013
// Pattern coordPattern =
// Pattern.compile("(30\\.\\d*);(-97\\.\\d*);");
Pattern coordPattern = Pattern
.compile("lat: (3[0-9]\\.\\d+), lng: (-9[0-9]\\.\\d+),");
Matcher coordMatcher = coordPattern.matcher(script);
Pattern namePattern = Pattern.compile("Stop Name - (.*?)</b>");
Matcher nameMatcher = namePattern.matcher(script);
Pattern idPattern = Pattern.compile("Stop ID - (\\d*)");
Matcher idMatcher = idPattern.matcher(script);
try {
while (coordMatcher.find() && nameMatcher.find() && idMatcher.find()) {
bos.write((coordMatcher.group(1) + ", " + coordMatcher.group(2) + "\t")
.getBytes());
bos.write((nameMatcher.group(1) + "\t").getBytes());
bos.write((idMatcher.group(1) + "\n").getBytes());
}
bos.flush();
bos.close();
} catch (IOException e) {
errorText = "IO Error.";
cancel(true);
e.printStackTrace();
return null;
}
} else {
errorText = "Stop data could not be found on CapMetro.";
cancel(true);
return null;
}
}
return null;
}
// TODO: progressdialog!
@Override
protected void onCancelled(Void result) {
Toast.makeText(con, errorText, Toast.LENGTH_LONG).show();
}
@Override
protected void onPostExecute(Void result) {
// TODO: will need to set a flag here so campus map knows where to
// fetch the new stops
// (private data folder instead of assets)
Toast.makeText(con, "Stops have been updated.", Toast.LENGTH_LONG).show();
}
}
/*
* this method copies the ViewPager method of the same name (perhaps I
* should just use reflection?) to generate the necessary fragment tags for
* the purpose of restoring them
*/
public static String makeFragmentName(int viewId, int position) {
return "android:switcher:" + viewId + ":" + position;
}
public static <P> void parallelExecute(AsyncTask<P, ?, ?> task, P... params) {
// always call executeOnExecutor because I pulled in a current AsyncTask
task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, params);
}
public static void setImageAlpha(ImageView iv, int alpha) {
// imageView#setImageAlpha method seems to be broken on 4.x, so use the View.setAlpha
// method instead.
iv.setAlpha(alpha/255f);
}
}
