/*
 * Copyright 2003-2007 the original author or authors.
 *
 * Licensed 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 under the License.
 */
package org.codehaus.groovy.tools.groovydoc;

import java.util.Arrays;
import java.util.Iterator;

import org.codehaus.groovy.groovydoc.GroovyClassDoc;
import org.codehaus.groovy.groovydoc.GroovyPackageDoc;
import org.codehaus.groovy.groovydoc.GroovyRootDoc;

/*
 * todo
 *  comma at the end of method parameters
 *  static modifier
 *  order methods alphabetically (implement compareTo enough?)
 *  provide links to other html files (e.g. return type of a method)
 */
public class GroovyDocWriter {
	private GroovyDocTool tool;
	private OutputTool output;
	private GroovyDocTemplateEngine templateEngine;
    private static final String FS = "/";

    public GroovyDocWriter(GroovyDocTool tool, OutputTool output, GroovyDocTemplateEngine templateEngine) {
		this.tool = tool;
		this.output = output;
		this.templateEngine = templateEngine;
	}

	public void writeClasses(GroovyRootDoc rootDoc, String destdir) throws Exception {
		Iterator classDocs = Arrays.asList(rootDoc.classes()).iterator();
		while (classDocs.hasNext()) {
			GroovyClassDoc classDoc = (GroovyClassDoc) classDocs.next();
			writeClassToOutput(classDoc, destdir);
		}
	}

	public void writeRoot(GroovyRootDoc rootDoc, String destdir) throws Exception {
		output.makeOutputArea(destdir);
		writeRootDocToOutput(rootDoc, destdir);
	}

	public void writeClassToOutput(GroovyClassDoc classDoc, String destdir) throws Exception {
		String destFileName = destdir + FS + classDoc.getFullPathName() + ".html";
		System.out.println("Generating " + destFileName);
		String renderedSrc = templateEngine.applyClassTemplates(classDoc);// todo		
		output.writeToOutput(destFileName, renderedSrc);
	}	

	public void writePackages(GroovyRootDoc rootDoc, String destdir) throws Exception {
		Iterator packageDocs = Arrays.asList(rootDoc.specifiedPackages()).iterator();
		while (packageDocs.hasNext()) {
			GroovyPackageDoc packageDoc = (GroovyPackageDoc) packageDocs.next();
			output.makeOutputArea(destdir + FS + packageDoc.name());
			writePackageToOutput(packageDoc, destdir);
		}
	}

	public void writePackageToOutput(GroovyPackageDoc packageDoc, String destdir) throws Exception {
		Iterator templates = templateEngine.packageTemplatesIterator();
		while (templates.hasNext()) {
			String template = (String) templates.next();

			String renderedSrc = templateEngine.applyPackageTemplate(template, packageDoc); // todo
			
			String destFileName = destdir + FS + packageDoc.name() + FS + tool.getFile(template);
			System.out.println("Generating " + destFileName);
			output.writeToOutput(destFileName, renderedSrc);
		}
	}	

	public void writeRootDocToOutput(GroovyRootDoc rootDoc, String destdir) throws Exception {
		Iterator templates = templateEngine.docTemplatesIterator();
		while (templates.hasNext()) {
			String template = (String) templates.next();

			String renderedSrc = templateEngine.applyRootDocTemplate(template, rootDoc); // todo
			
			String destFileName = destdir + FS + tool.getFile(template);
			System.out.println("Generating " + destFileName);
			output.writeToOutput(destFileName, renderedSrc);
		}
	}	

}