package com.isx.ant.jaxbtask;

import org.apache.tools.ant.Task;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.types.Path;
import org.apache.tools.ant.types.Reference;

import java.io.*;
import java.util.*;

public class JaxbCheck extends Task
{
    public JaxbCheck()
    {
    }
    
    String dtdFile;
    String xjsFile;
    String destroot;
    String property;
    String value;
    public void setDtdFile(String d) { dtdFile = d; }
    public void setXjsFile(String x) { xjsFile = x; }
    public void setDest(String d) { destroot = d; }
    public void setProperty(String s) { property = s; }
    public void setValue(String s) { value = s; }
    
    public void execute()
    {
	if (property == null || property.equals("")) throw new BuildException("property attribute must be set");
	if (value == null || value.equals("")) throw new BuildException("value attribute must be set");
	if (destroot == null || destroot.equals("")) throw new BuildException("dest attribute must be set");
	if (dtdFile == null || dtdFile.equals("")) throw new BuildException("dtdFile attribute must be set");
	if (xjsFile == null || xjsFile.equals("")) throw new BuildException("xjsFile attribute must be set");

	File realDtdFile = project.resolveFile(project.translatePath(dtdFile));
	File realXjsFile = project.resolveFile(project.translatePath(xjsFile));
	File realDest = project.resolveFile(project.translatePath(destroot));
	File[] files = new File[0];
	
	try {
	    files = JAXBFileDeterminer.findFiles(realDtdFile, realXjsFile,
						 realDest);
	} catch (Exception e) {
	    throw new BuildException("JAXBFileDeterminer problem : " + e.getMessage(), e);
	}
	boolean ok = true;
	for (int i = 0; i < files.length; ++i)
	    {
		log(files[i] + " exists? " + files[i].exists(), Project.MSG_VERBOSE);
		if (!files[i].exists()) { ok = false; break; }
		log("File Last Modified : " + files[i].lastModified(), Project.MSG_VERBOSE);
		log("DTD  Last Modified : " + realDtdFile.lastModified(), Project.MSG_VERBOSE);
		log("XJS  Last Modified : " + realXjsFile.lastModified(), Project.MSG_VERBOSE);
		if ((files[i].lastModified() < realDtdFile.lastModified()) ||
		    (files[i].lastModified() < realXjsFile.lastModified()))
		    { ok = false; break; }
	    }
	if (!ok) { // if not ok, do the build
	    log("Need to rebuild", Project.MSG_VERBOSE);
	    project.setProperty(property, value);
	} else {
	    log("All files up to date", Project.MSG_VERBOSE);
	}
    }
}