/*
 *                 Sun Public License Notice
 *
 * The contents of this file are subject to the Sun Public License
 * Version 1.0 (the "License"). You may not use this file except in
 * compliance with the License. A copy of the License is available at
 * http://www.sun.com/
 *
 * The Original Code is NetBeans. The Initial Developer of the Original
 * Code is Sun Microsystems, Inc. Portions Copyright 1997-2002 Sun
 * Microsystems, Inc. All Rights Reserved.
 */
package org.netbeans.test.web.editor.completion;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Properties;
import java.util.StringTokenizer;
import java.util.Vector;

/**
 *
 * @author  Marek Fukala
 */
public class ProjectInfo {
    
    private File projectPath;
    
    private TestFileInfo[] tfis;
    
    /** Creates a new instance of ProjectInfo */
    public ProjectInfo(File projectPath) throws IOException {
        this.projectPath = projectPath;
        parseTestConfig();
    }
    
    private void parseTestConfig() throws IOException {
        //where to place created TFIS
        Vector tfisv = new Vector();
        
        //load config file
        File testConfigFile = new File(getProjectPath(), TEST_CONFIG_NAME);
        Properties props = new Properties();
        props.load(new FileInputStream(testConfigFile));
        
        //parse the config file
        //example of the parsed line: afolder/test.jsp=test.jsp.golden:10,15
        Enumeration keys = props.propertyNames();
        while(keys.hasMoreElements()) {
            String testFileName = (String)keys.nextElement();
            String value = props.getProperty(testFileName);
            //System.out.println(key + " = " + value);
            
            //parse the config file
            StringTokenizer prim = new StringTokenizer(value, ":");
            String goldenFileName = null;
            String elements = null;
            while(prim.hasMoreTokens()) {
                goldenFileName = prim.nextToken();
                elements = prim.nextToken();
            }
            
            //parse the test elements
            StringTokenizer sec = new StringTokenizer(elements, ";");
            
            int[][]indexes = null;
            Vector idx = new Vector();
            
            while(sec.hasMoreTokens()) {
                String item = sec.nextToken();
                //parse the pair
                StringTokenizer pair = new StringTokenizer(item, ",");
                
                while(pair.hasMoreTokens()) {
                    String row = pair.nextToken();
                    String lineOffset = pair.nextToken();
                    idx.addElement(new Pair(row, lineOffset));
                }
                
            }
            
            //create a two-dimensional array for the indexes
            indexes = new int[idx.size()][2];
            Enumeration kenum = idx.elements();
            int count = 0;
            while(kenum.hasMoreElements()) {
                Pair pair = (Pair)kenum.nextElement();
                try {
                    indexes[count][0] = Integer.parseInt(pair.getA());
                    indexes[count++][1] = Integer.parseInt(pair.getB());
                }catch(NumberFormatException e) {
                    throw new IOException("cannot parse number: " + e.getMessage());
                }
            }
            
            //create a TestFileInfo instance for this test file
            TestFileInfo tfi = new TestFileInfo(testFileName, goldenFileName, indexes);
            tfisv.addElement(tfi);
        }
        
        this.tfis = (TestFileInfo[])tfisv.toArray(new TestFileInfo[]{});
    }
    
    public File getProjectPath() {
        return this.projectPath;
    }
    
    public TestFileInfo[] getTestFileInfos() {
        return this.tfis;
    }
    
    public static final String TEST_CONFIG_NAME = "testconfig.properties";
    
    private static class Pair {
        private String a,b;
        public Pair(String a, String b) {
            this.a = a;
            this.b = b;
        }
        public String getA() {return a;}
        public String getB() {return b;}
    }
    
    public static class TestFileInfo {
        private String testFileName;
        private String goldenFileName;
        private int[][] indexes;
        
        public TestFileInfo(String testFileName, String goldenFileName, int[][] indexes) {
            this.testFileName = testFileName;
            this.goldenFileName = goldenFileName;
            this.indexes = indexes;
        }
        
        public String getTestFileName() {
            return this.testFileName;
        }
        
        public String getGoldenFileName() {
            return this.goldenFileName;
        }
        
        public int[][] getIndexes() {
            return this.indexes;
        }
        
        public String toString() {
            String pairsInfo = new String();
            for(int i = 0; i < indexes.length; i++) {
                pairsInfo += "(" + indexes[i][0] + "," + indexes[i][1] + ")";
                if(i < indexes.length - 1) pairsInfo += ", ";
            }
            return "TestFileInfo[testFile=" + testFileName +", goldenFile=" + goldenFileName + ", pairs=" + pairsInfo;
        }
    }
}