import java.util.regex.Matcher;
import java.util.regex.Pattern;
import projectviewer.*;

goToAction(action, msg){
	txt = textArea.getText();
	Pattern rp = Pattern.compile("def\\s+"+action+"\\b");
	Matcher m = rp.matcher(txt);
	if(m.find()){
		search = new PatternSearchMatcher(m.group(), false);
		match = search.nextMatch(txt, true, true, true, false);
		textArea.setCaretPosition(match.start);
	} else {
		Macros.message(view, msg);
		return false;
	}
}

goToFileOnCurrentLine()
{
	mode = buffer.getMode().toString();
	curLine = textArea.getLineText(textArea.getCaretLine());
	curProject = ProjectViewer.getActiveProject(view);
	if(curProject == null){
		Macros.error(view, "Couldn't find RoR project directory");
		return false;
	}
	railsRoot = curProject.getRootPath();
	dirPath = buffer.getDirectory();
	curFile = buffer.getPath();
	modules = "/";
	
	// Example: render :partial => 'account/login'
	Pattern rp = Pattern.compile("render[\\s\\(].*:partial\\s*=>\\s*[\'\"](.+?)[\'\"]");
	Matcher m = rp.matcher(curLine);
	
	if(m.find()){
		partialName = m.group(1);
		if(partialName.lastIndexOf("/") != -1){
			pieces = partialName.split("/");
			partialName = pieces[pieces.length - 1];
			for(int i = 0; i<pieces.length - 1; i++) {
				modules = modules + pieces[i] + "/";
			}
			fullPath = railsRoot+File.separator+"app"+File.separator+"views"+modules+"_"+partialName+".rhtml";
		} else {
			fullPath = dirPath+"_"+partialName+".rhtml";
		}
		jEdit.openFile(view,fullPath);
	}

	// Example: render :action => 'login'
	Pattern rp = Pattern.compile("render[\\s\\(].*:action\\s*=>\\s*[\'\"](.+?)[\'\"]");
	Matcher m = rp.matcher(curLine);
	
	if(m.find()){
		actionName = m.group(1);
		if(mode.equals("ruby")){
			goToAction(actionName, "Couldn't find the \'"+actionName+"\' action");
		} else {
			Macros.message(view, "Don't know where to go when rendering an action from outside a controller");
			return false;
		}
	}
	
	// Example: redirect_to :action => 'login'
	Pattern rp = Pattern.compile("(redirect_to|redirect_back_or_default)[\\s\\(]");
	Matcher m = rp.matcher(curLine);
	
	if(m.find()){
		controller = action = "";
		Pattern rp = Pattern.compile(".*:action\\s*=>\\s*[\'\"](.+?)[\'\"]");
		Matcher m = rp.matcher(curLine);
		if(m.find())
			action = m.group(1);
		
		Pattern rp = Pattern.compile(".*:controller\\s*=>\\s*[\'\"](.+?)[\'\"]");
		Matcher m = rp.matcher(curLine);
		if(m.find())
			controller = m.group(1);
		
		if(!mode.equals("ruby")){
			Macros.message(view, "Don't know where to go when redirecting from outside a controller");
			return false;
		}
		
		if(controller.length() == 0){
			controllerFile = curFile;
		} else {
			if(controller.lastIndexOf("/") != -1){
				pieces = controller.split("/");
				controller = pieces[pieces.length - 1];
				for(int i = 0; i<pieces.length - 1; i++) {
					modules = modules + pieces[i] + "/";
				}
			}
			otherPath = railsRoot + File.separator + "app" + File.separator + "controllers" + modules + controller + "_controller.rb";
			controllerFile = otherPath;
			jEdit.openFile(view,controllerFile);
			return true;
		}
		goToAction(action, "Couldn't find the \'"+action+"\' action");
	}
	
	// Example: <script src="/javascripts/controls.js">
	Pattern rp = Pattern.compile("<script.+src=[\'\"](.+\\.js)[\'\"]");
	Matcher m = rp.matcher(curLine);
	if(m.find()){
		javascript = m.group(1);
		Pattern rp = Pattern.compile("^(https?|ftp)://");
		Matcher m = rp.matcher(javascript);
		if(m.find()){
			fullPath = javascript;
		} else {
			fullPath = railsRoot + File.separator + "public" + javascript;
		}
		jEdit.openFile(view,fullPath);
	}
	
	// Example: <%= javascript_include_tag 'general' %>
	Pattern rp = Pattern.compile("<%=.+javascript_include_tag.+[\'\"](.+?)[\'\"]");
	Matcher m = rp.matcher(curLine);
	if(m.find()){
		javascript = m.group(1);
		if(javascript.lastIndexOf(".js") == -1)
			javascript = javascript + ".js";
		
		if(javascript.startsWith("/")){
			publicFile = javascript.substring(1, javascript.length());
		} else {
			publicFile = "javascripts/"+javascript;
		}
		fullPath = railsRoot + File.separator + "public" + File.separator + publicFile;
		jEdit.openFile(view, fullPath);
	}
	
	// Example: <link href="/stylesheets/application.css">
	Pattern rp = Pattern.compile("<link.+href=[\'\"](.+\\.css)[\'\"]");
	Matcher m = rp.matcher(curLine);
	if(m.find()){
		stylesheet = m.group(1);
		Pattern rp = Pattern.compile("^(https?|ftp)://");
		Matcher m = rp.matcher(stylesheet);
		if(m.find()){
			fullPath = stylesheet;
		} else {
			fullPath = railsRoot + File.separator + "public" + stylesheet;
		}
		jEdit.openFile(view,fullPath);
	}
	
	// Example: <%= stylesheet_link_tag 'application' %>
	Pattern rp = Pattern.compile("<%=.+stylesheet_link_tag.+[\'\"](.+?)[\'\"]");
	Matcher m = rp.matcher(curLine);
	if(m.find()){
		stylesheet = m.group(1);
		if(stylesheet.lastIndexOf(".css") == -1)
			stylesheet = stylesheet + ".css";
		
		if(stylesheet.startsWith("/")){
			publicFile = stylesheet.substring(1, stylesheet.length());
		} else {
			publicFile = "stylesheets/"+stylesheet;
		}
		fullPath = railsRoot + File.separator + "public" + File.separator + publicFile;
		jEdit.openFile(view, fullPath);
	}
	
	// Example: layout 'admin'
	Pattern rp = Pattern.compile("layout.+[\'\"](.+?)[\'\"]");
	Matcher m = rp.matcher(curLine);
	if(m.find()){
		layout = m.group(1);
		fullPath = railsRoot + File.separator + "app" + File.separator + "views" + File.separator + "layouts" + File.separator + layout + ".rhtml";
		jEdit.openFile(view, fullPath);
	}	
}
goToFileOnCurrentLine();