/**
 * 
 */
package com.pjaol.gwt.ant;

import org.apache.tools.ant.Project;
import org.apache.tools.ant.Task;
import org.apache.tools.ant.types.CommandlineJava;
import org.apache.tools.ant.types.EnumeratedAttribute;
import org.apache.tools.ant.types.Path;

import com.google.gwt.dev.GWTCompiler;

/**
 * @author Patrick O'Leary (pjaol@pjaol.com)
 * 
 *
 */
public class GWTCompile extends Task {
	
	public static class logLevels extends EnumeratedAttribute{

		@Override
		/**
		 * log values for GWTCompiler
		 */
		public String[] getValues() {
			// ide's such as eclipse, xdoclet editor lower case the enumerated values
			return new String[] {"error", "warn", "info", "trace", "debug", "spam", "all"};
		}
		
	}
	public static class styleTypes extends EnumeratedAttribute {

		@Override
		public String[] getValues() {
			return new String[] {"obf", "pretty", "detailed"};
		}
		
	}
	private int argpos = 0;
	private String args[] = new String[8];
	private String gen;
	private String logLevel; 
	
	
	private String module;
	private String out;
	

	private String src;
	private String style;

	
	private void addArg(String key, String value) {
		args[argpos]= key;
		argpos++;
		args[argpos]= value;
		argpos++;
	}

	
	public void execute () {
		
		CommandlineJava cmd = new CommandlineJava();
		Path cp = cmd.createClasspath(getProject()).concatSystemClasspath();
		
		cmd.setClassname(GWTCompiler.class.getName());
		if (gen !=null) {
			
			addArg("-gen",gen);
		}
	
		if (out != null) {
			addArg("-out",out);
		}
		
		if (style != null){
			addArg("-style",style);
		}
		
		if(logLevel != null){
			addArg("-logLevel", logLevel);
		}
		
		if (module != null) {
			log("module = " + module +" position = "+argpos, Project.MSG_INFO);
			args[argpos] = module;
			argpos++;
		}
		
		
        cp.add(new Path(getProject(), src));
    
		new TaskUtils().run(getProject(),   cp,GWTCompiler.class.getName(), getArgs(), true);
		         
	}
	
	private String[] getArgs() {
		String[] a = new String[argpos];
		for (int x = 0; x< argpos; x++){
			a[x] = args[x];
		}
		
		return a;
	}
	public String getGen() {
		return gen;
	}
	public String getLogLevel() {
		return logLevel;
	}
	public String getModule() {
		return module;
	}
	
	public String getOut() {
		return out;
	}
	public String getSrc() {
		return src;
	}

	public String getStyle() {
		return style;
	}
	public void setGen(String gen) {
		this.gen = gen;
	}
	
	public void setLogLevel(logLevels logLevel) {
		this.logLevel = logLevel.getValue().toUpperCase();
	}
	public void setModule(String module) {
		this.module = module;
	}
	
	public void setOut(String out) {
		this.out = out;
	}
	
	public void setSrc(String src){
		this.src = src;
	}
	
	public void setStyle(styleTypes style) {
		this.style = style.getValue().toUpperCase();
	}
	
}