package com.atlassian.webdriver.browsers.profile;
   
   import com.google.common.collect.ImmutableMap;
   import com.google.common.collect.Maps;
   import com.google.common.io.Closeables;
   import com.google.common.io.LineReader;
   import org.openqa.selenium.WebDriverException;
   
   import java.io.File;
  import java.io.FileReader;
  import java.io.IOException;
  import java.util.Map;
  import java.util.regex.Matcher;
  import java.util.regex.Pattern;
  
  /**
   * A class for reading a preferences file for a profile and extracting the
   * properties.
   *
   * The format for preferences is
   * value=key
   *
   * @since 2.1
   */
  public class ProfilePreferences
  {
      private final Pattern PREFERENCE_PATTERN = Pattern.compile("^([^=]+)=(.*)$");
  
      private final Map<String, Object> allPreferences = Maps.newHashMap();
  
      public ProfilePreferences(File preferencesFile)
      {
          FileReader reader = null;
          try {
            reader = new FileReader(preferencesFile);
            readPreferences(reader);
          } catch (IOException e) {
            throw new WebDriverException(e);
          } finally {
            Closeables.closeQuietly(reader);
          }
      }
  
      public Map<String, Object> getPreferences()
      {
          return ImmutableMap.copyOf(allPreferences);
      }
  
      private void readPreferences(FileReader reader) throws IOException
      {
          LineReader allLines = new LineReader(reader);
          String line = allLines.readLine();
          while (line != null) {
            Matcher matcher = PREFERENCE_PATTERN.matcher(line);
            if (matcher.matches()) {
              allPreferences.put(matcher.group(1), preferenceAsValue(matcher.group(2)));
            }
            line = allLines.readLine();
          }
      }
  
      private Object preferenceAsValue(String value)
      {
          if ("false".equals(value) || "true".equals(value)) {
              return Boolean.parseBoolean(value);
          }
          else if (value.matches("^[0-9]+$"))
          {
            return Integer.parseInt(value);
          }
          else
          {
              return value;
          }
      }
  
  
  }