/**
 * ============LICENSE_START====================================================
 * org.onap.aaf
 * ===========================================================================
 * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
 * ===========================================================================
 * 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.
 * ============LICENSE_END====================================================
 *
 */

package org.onap.aaf.auth.cmd.perm;

import java.util.Collections;
import java.util.Comparator;

import org.onap.aaf.auth.cmd.AAFcli;
import org.onap.aaf.auth.cmd.BaseCmd;
import org.onap.aaf.cadi.CadiException;
import org.onap.aaf.cadi.client.Future;
import org.onap.aaf.cadi.client.Retryable;
import org.onap.aaf.misc.env.APIException;

import aaf.v2_0.Perms;

public class List extends BaseCmd<Perm> {
//	private static final String LIST_PERM_DETAILS = "list permission details";
	
	public List(Perm parent) {
		super(parent,"list");

		cmds.add(new ListByUser(this));
		cmds.add(new ListByName(this));
		cmds.add(new ListByNS(this));
		cmds.add(new ListByRole(this));
		cmds.add(new ListActivity(this));
	}
	// Package Level on purpose
	abstract class ListPerms extends Retryable<Integer> {
		protected int list(Future<Perms> fp,String header, String parentPerm) throws CadiException, APIException  {
			if(fp.get(AAFcli.timeout())) {	
				report(fp,header, parentPerm);
			} else {
				error(fp);
			}
			return fp.code();
		}
	}

	private static final Comparator<aaf.v2_0.Perm> permCompare = new Comparator<aaf.v2_0.Perm>() {
		@Override
		public int compare(aaf.v2_0.Perm a, aaf.v2_0.Perm b) {
			int rc;
			if((rc=a.getType().compareTo(b.getType()))!=0) {
			    return rc;
			}
			if((rc=a.getInstance().compareTo(b.getInstance()))!=0) {
			    return rc;
			}
			return a.getAction().compareTo(b.getAction());
		}
	};
	
	private static final String permFormat = "%-30s %-30s %-10s\n";
	
	void report(Future<Perms> fp, String ... str) {
		reportHead(str);
		if (this.aafcli.isDetailed()) {		
			String format = "%-36s %-30s %-15s\n";
			String descFmt = "   %-75s\n";
			reportColHead(format + descFmt,"[PERM NS].Type","Instance","Action", "Description");
			Collections.sort(fp.value.getPerm(),permCompare);
			for(aaf.v2_0.Perm p : fp.value.getPerm()) {
				String pns = p.getNs();
				if(pns==null) {
					pw().format(format,
							p.getType(),
							p.getInstance(),
							p.getAction());
				} else {
					pw().format(format,
							'['+pns + "]." + p.getType().substring(pns.length()+1),
							p.getInstance(),
							p.getAction());
				}
				String desc = p.getDescription();
				if(desc!=null && desc.length()>0) {
					pw().format(descFmt,p.getDescription());
				}
			}
			pw().println();
		} else {
			String format = reportColHead(permFormat,"PERM Type","Instance","Action");

			Collections.sort(fp.value.getPerm(),permCompare);
			for(aaf.v2_0.Perm p : fp.value.getPerm()) {
				pw().format(format,
					p.getType(),
					p.getInstance(),
					p.getAction());
			}
			pw().println();
		}
	}

}