package com.planet_ink.coffee_mud.WebMacros;

import com.planet_ink.coffee_web.http.MIMEType;
import com.planet_ink.coffee_web.interfaces.*;
import com.planet_ink.coffee_mud.core.interfaces.*;
import com.planet_ink.coffee_mud.core.*;
import com.planet_ink.coffee_mud.core.collections.*;
import com.planet_ink.coffee_mud.Abilities.interfaces.*;
import com.planet_ink.coffee_mud.Areas.interfaces.*;
import com.planet_ink.coffee_mud.Behaviors.interfaces.*;
import com.planet_ink.coffee_mud.CharClasses.interfaces.*;
import com.planet_ink.coffee_mud.Libraries.interfaces.*;
import com.planet_ink.coffee_mud.Common.interfaces.*;
import com.planet_ink.coffee_mud.Exits.interfaces.*;
import com.planet_ink.coffee_mud.Items.interfaces.*;
import com.planet_ink.coffee_mud.Locales.interfaces.*;
import com.planet_ink.coffee_mud.MOBS.interfaces.*;
import com.planet_ink.coffee_mud.Races.interfaces.*;

import java.util.*;

import com.planet_ink.coffee_mud.core.exceptions.HTTPServerException;

/*
   Copyright 2007-2020 Bo Zimmerman

   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.
*/
public class FileData extends StdWebMacro
{
	@Override
	public String name()
	{
		return "FileData";
	}

	@Override
	public boolean isAWebPath()
	{
		return true;
	}

	@Override
	public boolean preferBinary()
	{
		return true;
	}

	public String getFilename(final HTTPRequest httpReq, final String filename)
	{
		final String path=httpReq.getUrlParameter("PATH");
		if(path==null)
			return filename;
		final String file=httpReq.getUrlParameter("FILE");
		if(file==null)
			return filename;
		return path+"/"+file;
	}

	@Override
	public byte[] runBinaryMacro(final HTTPRequest httpReq, final String parm, final HTTPResponse httpResp) throws HTTPServerException
	{
		String filename=getFilename(httpReq,"");
		if(filename==null)
			filename="FileData";
		final int x=filename.lastIndexOf('/');
		if((x>=0)&&(x<filename.length()-1))
			filename=filename.substring(x+1);
		final MIMEType mimeType = MIMEType.All.getMIMEType(filename);
		if(mimeType != null)
			httpResp.setHeader("Content-Type", mimeType.getType());
		httpResp.setHeader("Content-Disposition", "attachment; filename="+filename);

		if(filename.length()==0)
			return null;
		final MOB M = Authenticate.getAuthenticatedMob(httpReq);
		if(M==null)
			return null;
		final CMFile F=new CMFile(getFilename(httpReq,""),M);
		if((!F.exists())||(!F.canRead()))
			return null;
		return F.raw();
	}

	@Override
	public String runMacro(final HTTPRequest httpReq, final String parm, final HTTPResponse httpResp) throws HTTPServerException
	{
		return "[Unimplemented string method!]";
	}
}
