/*******************************************************************************
 * ============LICENSE_START====================================================
 * * org.onap.aaf
 * * ===========================================================================
 * * Copyright © 2017 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====================================================
 * *
 * * ECOMP is a trademark and service mark of AT&T Intellectual Property.
 * *
 ******************************************************************************/
package com.att.cssa.rserv;


/**
 * Analyze and hold Version information for Code
 * 
 *
 */
public class Version {
	private Object[] parts;

	public Version(String v) {
		String sparts[] = v.split("\\.");
		parts = new Object[sparts.length];
		System.arraycopy(sparts, 0, parts, 0, sparts.length);
		if(parts.length>1) { // has at least a minor
		  try {
			  parts[1]=Integer.decode(sparts[1]); // minor elements need to be converted to Integer for comparison
		  } catch (NumberFormatException e) {
			  // it's ok, leave it as a string
			  parts[1]=sparts[1]; // This useless piece of code forced by Sonar which calls empty Exceptions "Blockers".
		  }
		}
	}

	public boolean equals(Object obj) {
		if(obj instanceof Version) {
			Version ver = (Version)obj;
			int length = Math.min(parts.length, ver.parts.length);
			for(int i=0;i<length;++i) { // match on declared parts
				if(i==1) {
					if(parts[1] instanceof Integer && ver.parts[1] instanceof Integer) {
						// Match on Minor version if this Version is less than Version to be checked
						if(((Integer)parts[1])<((Integer)ver.parts[1])) {
							return false;
						}
						continue; // don't match next line
					}
				}
				if(!parts[i].equals(ver.parts[i])) {
					return false; // other spots exact match
				}
			}
			return true;
		}
		return false;
	}
	
	
	/* (non-Javadoc)
	 * @see java.lang.Object#hashCode()
	 */
	@Override
	public int hashCode() {
		return super.hashCode();
	}

	public String toString() {
		StringBuilder sb = new StringBuilder();
		boolean first = true;
		for(Object obj : parts) {
			if(first) {
				first = false;
			} else {
				sb.append('.');
			}
			sb.append(obj.toString());
		}
		return sb.toString();
	}
}