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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
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package helper;

import lib.TestParameters;
import java.util.Properties;
import java.util.Enumeration;
import java.io.FileInputStream;
import util.PropertyName;

/**
 * This class parses the ini files and stores the data
 * <br>
 * inside TestParameters
 */
public class CfgParser
{

    protected boolean debug = false;
    protected String iniFile = "";

    public CfgParser(String ini)
    {
        if (ini != null)
        {
            this.iniFile = ini;
        }
    }

    public void getIniParameters(TestParameters param)
    {
        debug = param.DebugIsActive;
        Properties cfg = null;
        if (iniFile.equals(""))
        {
            //no iniFile given, search one in the users home directory
            cfg = getProperties(getDefaultFileName(true));
            //try to search the user dir if no iniFile could be found yet
            if (cfg == null)
            {
                cfg = getProperties(getDefaultFileName(false));
            }
        }
        else
        {
            cfg = getProperties(iniFile);
        }

        if (cfg != null)
        {
            Enumeration cfgEnum = cfg.keys();
            while (cfgEnum.hasMoreElements())
            {
                String pName = (String) cfgEnum.nextElement();
                Object pValue = cfg.getProperty(pName);

                if (pValue instanceof String)
                {
                    pValue = ((String) pValue).trim();
                }

                param.put(pName.trim(), pValue);

                if (pName.equals(PropertyName.TEST_DOCUMENT_PATH))
                {

                    param.put("DOCPTH", (String) pValue);
                    System.setProperty("DOCPTH", (String) pValue);

                }
                else if (pName.equals(PropertyName.SRC_ROOT))
                {

                    System.setProperty(pName, (String) pValue);

                }
            }
        }

        debug = param.DebugIsActive;

        //check for platform dependend parameters
        //this would have a $OperatingSystem as prefix
        String os = (String) param.get(PropertyName.OPERATING_SYSTEM);
        if (os != null && os.length() > 1)
        {

            //found something that could be a prefex
            //check all parameters for this
            Enumeration keys = param.keys();
            while (keys.hasMoreElements())
            {
                String key = (String) keys.nextElement();
                if (key.startsWith(os))
                {
                    Object oldValue = param.get(key);
                    String newKey = key.substring(os.length() + 1);
                    param.remove(key);
                    param.put(newKey, oldValue);
                }
            }

        }
    }

    protected Properties getProperties(String name)
    {
        // get the resource file
        Properties prop = new Properties();
        if (debug)
        {
            System.out.println("Looking for " + name);
        }
        try
        {
            FileInputStream propFile = new FileInputStream(name);
            prop.load(propFile);
            System.out.println("Parsing properties from " + name);
            propFile.close();
        }
        catch (Exception e)
        {
            try
            {
                java.net.URL url = this.getClass().getResource("/" + name);
                if (url != null)
                {
                    System.out.println("Parsing properties from " + name);
                    java.net.URLConnection connection = url.openConnection();
                    java.io.InputStream in = connection.getInputStream();
                    prop.load(in);
                }
            }
            catch (Exception ex)
            {
                //Exception while reading prop-file, returning null
                return null;
            }
        }

        return prop;
    }

    protected String getDefaultFileName(boolean home)
    {
        String fileSeparator = System.getProperty("file.separator");
        String path = "";
        if (home)
        {
            //look inside the home directory
            path = System.getProperty("user.home");
        }
        else
        {
            path = System.getProperty("user.dir");
        }
        if (fileSeparator.equals("/"))
        {
            //suppose I'm on Unix-platform
            return path + fileSeparator + ".runner.props";
        }
        else
        {
            //suppose I'm on Windows
            return path + fileSeparator + "runner.props";
        }
    }
}