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/*******************************************************************************
 * © 2018 Disney | ABC Television Group
 *
 * Licensed under the Apache License, Version 2.0 (the "Apache License")
 * with the following modification; you may not use this file except in
 * compliance with the Apache License and the following modification to it:
 * Section 6. Trademarks. is deleted and replaced with:
 *
 * 6. Trademarks. This License does not grant permission to use the trade
 *     names, trademarks, service marks, or product names of the Licensor
 *     and its affiliates, except as required to comply with Section 4(c) of
 *     the License and to reproduce the content of the NOTICE file.
 *
 * You may obtain a copy of the Apache License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the Apache License with the above modification is
 * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the Apache License for the specific
 * language governing permissions and limitations under the Apache License.
 *******************************************************************************/
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.disney.groovity.Groovity;
static web = [
	path : "/groovity/servlet/admin/api/compiler",
	output : "application/json",
	charset : "UTF-8",
	auth : [ policy:{run('/groovity/servlet/admin/apiPolicy')} ],
	cors : [ policy:{run('/groovity/servlet/admin/apiPolicy')} ],
	methods: ['GET','POST']
]

@Field Groovity factory = getClass().classLoader.groovity;

if(request.method=='POST'){
	//compile
	compile(request,response);
}
else{
	//status
	status(request, response);
}


private void status(HttpServletRequest request, HttpServletResponse response) throws IOException
{
	Map result = new HashMap();
	if(factory.isCompiling()){
		result.put("busy", "This host is currently compiling, please wait");
	}
	else if("sources".equals(request.getParameter("show"))){
		List sources = [];
		factory.sourceLocators.each{ it.each{
			source ->
			sources << [source.path,source.lastModified];
		}}
		result.put("sources", sources);
	}
	else{
		List events = factory.getCompilerEvents().values().collect{
			event ->
			return [path:event.path,time:event.time,change:event.change,error:event.error?.message];	
		};
		result.put("events", events);
		result.put("status",factory.getCompiledStatus().collect{
			key,value->
			return [key,value];
		});
		/*List pending = factory.getChangedSources().collect{
			source ->
			return [path:source.getPath(), exists:source.exists(), modified: source.getLastModified() ];
		};
		result.put("pending", pending);
		*/
	}
	write(value:result)
}


private void compile(HttpServletRequest request, HttpServletResponse response) throws IOException
{
	if(factory.isCompiling()){
		response.sendError(500);
	}
	else{
		String force = request.getParameter("force");
		final boolean toForce = force==null?false:Boolean.valueOf(force);
		String source = request.getParameter("source");
		log(info:"User '${request.getParameter('user')}' starting compile with note '${request.getParameter('note')}'; source = ${source}; force = ${force};");
		if("all".equals(source)){
			new Thread(new Runnable(){
				public void run(){
					try{
						factory.compileAll(toForce, true);
					}
					catch(Error e){
						log(error:"Compiler threw error",thrown:e)
					}
				}
			}).start();
		}
		else if(source!=null && source!=''){
			final String[] sources = source.split(",");
			new Thread(new Runnable(){
				public void run(){
					try{
						factory.compile(toForce, true, Arrays.asList(sources));
					}
					catch(Error e){
						log(error:"Compiler threw error",thrown:e)
					}
				}
			}).start();
		}
		else{
			response.sendError(400);
			return; 
		}
	}
	response.writer << "Compile is now taking place in the background, please check status for results";
	response.flushBuffer();
}