/*

 * JBoss, Home of Professional Open Source

 * Copyright 2011, Red Hat, Inc. and individual contributors

 * by the @authors tag. See the copyright.txt in the distribution for a

 * full listing of individual contributors.

 *

 * This is free software; you can redistribute it and/or modify it

 * under the terms of the GNU Lesser General Public License as

 * published by the Free Software Foundation; either version 2.1 of

 * the License, or (at your option) any later version.

 *

 * This software is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this software; if not, write to the Free

 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA

 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.

 */



package org.mobicents.protocols.ss7.map.primitives;



import java.io.IOException;

import java.util.Arrays;



import org.mobicents.protocols.asn.AsnException;

import org.mobicents.protocols.asn.AsnInputStream;

import org.mobicents.protocols.asn.AsnOutputStream;

import org.mobicents.protocols.asn.Tag;

import org.mobicents.protocols.ss7.map.api.MAPException;

import org.mobicents.protocols.ss7.map.api.MAPParsingComponentException;

import org.mobicents.protocols.ss7.map.api.MAPParsingComponentExceptionReason;

import org.mobicents.protocols.ss7.map.api.primitives.CellGlobalIdOrServiceAreaIdFixedLength;





/**

*

* @author sergey vetyutnev

* 

*/

public class CellGlobalIdOrServiceAreaIdFixedLengthImpl implements CellGlobalIdOrServiceAreaIdFixedLength, MAPAsnPrimitive {



	private byte[] data;



	public CellGlobalIdOrServiceAreaIdFixedLengthImpl() {

	}



	public CellGlobalIdOrServiceAreaIdFixedLengthImpl(byte[] data) {

		this.data = data;

	}



	public CellGlobalIdOrServiceAreaIdFixedLengthImpl(int mcc, int mnc, int lac, int cellId) throws MAPException {



		if (mcc < 1 || mcc > 999)

			throw new MAPException("Bad mcc value");

		if (mnc < 0 || mnc > 999)

			throw new MAPException("Bad mnc value");



		this.data = new byte[7];



		StringBuilder sb = new StringBuilder();

		StringBuilder sb2 = new StringBuilder();

		if (mcc < 100)

			sb.append("0");

		if (mcc < 10)

			sb.append("0");

		sb.append(mcc);

		

		if (mnc < 100) {

			if (mnc < 10)

				sb2.append("0");

			sb2.append(mnc);

		} else {

			sb.append(mnc % 10);

			sb2.append(mnc / 10);

		}



		AsnOutputStream asnOs = new AsnOutputStream();

		TbcdString.encodeString(asnOs, sb.toString());

		System.arraycopy(asnOs.toByteArray(), 0, this.data, 0, 2);



		asnOs = new AsnOutputStream();

		TbcdString.encodeString(asnOs, sb2.toString());

		System.arraycopy(asnOs.toByteArray(), 0, this.data, 2, 1);



		data[3] = (byte)(lac / 256);

		data[4] = (byte)(lac % 256);

		data[5] = (byte)(cellId / 256);

		data[6] = (byte)(cellId % 256);

	}



	@Override

	public byte[] getData() {

		return data;

	}



	@Override

	public int getMCC() throws MAPException {

		

		if (data == null)

			throw new MAPException("Data must not be empty");

		if (data.length != 7)

			throw new MAPException("Data length must be equal 7");

		

		AsnInputStream ansIS = new AsnInputStream(data);

		String res = null;

		try {

			res = TbcdString.decodeString(ansIS, 3);

		} catch (IOException e) {

			throw new MAPException("IOException when decoding TbcdString: " + e.getMessage(), e);

		} catch (MAPParsingComponentException e) {

			throw new MAPException("MAPParsingComponentException when decoding TbcdString: " + e.getMessage(), e);

		}



		if (res.length() < 5 || res.length() > 6)

			throw new MAPException("Decoded TbcdString must be equal 5 or 6");

		

		String sMcc = res.substring(0, 3);



		return Integer.parseInt(sMcc);

	}



	@Override

	public int getMNC() throws MAPException {

		

		if (data == null)

			throw new MAPException("Data must not be empty");

		if (data.length != 7)

			throw new MAPException("Data length must be equal 7");

		

		AsnInputStream ansIS = new AsnInputStream(data);

		String res = null;

		try {

			res = TbcdString.decodeString(ansIS, 3);

		} catch (IOException e) {

			throw new MAPException("IOException when decoding TbcdString: " + e.getMessage(), e);

		} catch (MAPParsingComponentException e) {

			throw new MAPException("MAPParsingComponentException when decoding TbcdString: " + e.getMessage(), e);

		}



		if (res.length() < 5 || res.length() > 6)

			throw new MAPException("Decoded TbcdString must be equal 5 or 6");

		

		String sMnc;

		if (res.length() == 5) {

			sMnc = res.substring(3);

		} else {

			sMnc = res.substring(4) + res.substring(3, 4);

		}



		return Integer.parseInt(sMnc);

	}



	@Override

	public int getLac() throws MAPException {



		if (data == null)

			throw new MAPException("Data must not be empty");

		if (data.length != 7)

			throw new MAPException("Data length must be equal 7");



		int res = (data[3] & 0xFF) * 256 + (data[4] & 0xFF);

		return res;

	}



	@Override

	public int getCellId() throws MAPException {



		if (data == null)

			throw new MAPException("Data must not be empty");

		if (data.length != 7)

			throw new MAPException("Data length must be equal 7");



		int res = (data[5] & 0xFF) * 256 + (data[6] & 0xFF);

		return res;

	}



	

	@Override

	public int getTag() throws MAPException {

		return Tag.STRING_OCTET;

	}



	@Override

	public int getTagClass() {

		return Tag.CLASS_UNIVERSAL;

	}



	@Override

	public boolean getIsPrimitive() {

		return false;

	}



	@Override

	public void decodeAll(AsnInputStream ansIS) throws MAPParsingComponentException {

		try {

			int length = ansIS.readLength();

			this._decode(ansIS, length);

		} catch (IOException e) {

			throw new MAPParsingComponentException("IOException when decoding CellGlobalIdOrServiceAreaIdFixedLength: " + e.getMessage(), e,

					MAPParsingComponentExceptionReason.MistypedParameter);

		} catch (AsnException e) {

			throw new MAPParsingComponentException("AsnException when decoding CellGlobalIdOrServiceAreaIdFixedLength: " + e.getMessage(), e,

					MAPParsingComponentExceptionReason.MistypedParameter);

		}

	}



	@Override

	public void decodeData(AsnInputStream ansIS, int length) throws MAPParsingComponentException {

		try {

			this._decode(ansIS, length);

		} catch (IOException e) {

			throw new MAPParsingComponentException("IOException when decoding CellGlobalIdOrServiceAreaIdFixedLength: " + e.getMessage(), e,

					MAPParsingComponentExceptionReason.MistypedParameter);

		} catch (AsnException e) {

			throw new MAPParsingComponentException("AsnException when decoding CellGlobalIdOrServiceAreaIdFixedLength: " + e.getMessage(), e,

					MAPParsingComponentExceptionReason.MistypedParameter);

		}

	}



	private void _decode(AsnInputStream ansIS, int length) throws MAPParsingComponentException, IOException, AsnException {



		try {

			this.data = ansIS.readOctetStringData(length);

			if (this.data.length != 7)

				throw new MAPParsingComponentException("Error decoding CellGlobalIdOrServiceAreaIdFixedLength: the CellGlobalIdOrServiceAreaIdFixedLength field must contain from 7 to 7 octets. Contains: " + length,

						MAPParsingComponentExceptionReason.MistypedParameter);

		} catch (IOException e) {

			throw new MAPParsingComponentException("IOException when decoding CellGlobalIdOrServiceAreaIdFixedLength: " + e.getMessage(), e,

					MAPParsingComponentExceptionReason.MistypedParameter);

		}

	}	



	@Override

	public void encodeAll(AsnOutputStream asnOs) throws MAPException {

		

		this.encodeAll(asnOs, Tag.CLASS_UNIVERSAL, Tag.STRING_OCTET);

	}



	@Override

	public void encodeAll(AsnOutputStream asnOs, int tagClass, int tag) throws MAPException {

		

		try {

			asnOs.writeTag(tagClass, true, tag);

			int pos = asnOs.StartContentDefiniteLength();

			this.encodeData(asnOs);

			asnOs.FinalizeContent(pos);

		} catch (AsnException e) {

			throw new MAPException("AsnException when encoding CellGlobalIdOrServiceAreaIdFixedLength: " + e.getMessage(), e);

		}

	}



	@Override

	public void encodeData(AsnOutputStream asnOs) throws MAPException {



		if (this.data == null)

			throw new MAPException("Error while encoding the CellGlobalIdOrServiceAreaIdFixedLength: data is not defined");

		if (this.data.length != 7)

			throw new MAPException("Error while encoding the CellGlobalIdOrServiceAreaIdFixedLength: field length must be equal 7");



		asnOs.writeOctetStringData(this.data);

	}

	

	@Override

	public String toString() {

		

		int mcc = 0;

		int mnc = 0;

		int lac = 0;

		int cellId = 0;

		boolean goodData = false;

		

		try {

			mcc = this.getMCC();

			mnc = this.getMNC();

			lac = this.getLac();

			cellId = this.getCellId();

			goodData = true;

		} catch (MAPException e) {

		}

		

		StringBuilder sb = new StringBuilder();

		sb.append("CellGlobalIdOrServiceAreaIdFixedLength [");

		if (goodData) {

			sb.append("MCC=");

			sb.append(mcc);

			sb.append(", MNC=");

			sb.append(mnc);

			sb.append(", Lac=");

			sb.append(lac);

			sb.append(", CellId(SAC)=");

			sb.append(cellId);

		} else {

			sb.append("Data=");

			sb.append(this.printDataArr());

		}

		sb.append("]");

		

		return sb.toString();

	}

	

	private String printDataArr() {

		StringBuilder sb = new StringBuilder();

		if( this.data!=null ) {

			for( int b : this.data ) {

				sb.append(b);

				sb.append(" ");

			}

		}

		

		return sb.toString();

	}



	@Override

	public int hashCode() {

		final int prime = 31;

		int result = 1;

		result = prime * result + Arrays.hashCode(data);

		return result;

	}



	@Override

	public boolean equals(Object obj) {

		if (this == obj)

			return true;

		if (obj == null)

			return false;

		if (getClass() != obj.getClass())

			return false;

		CellGlobalIdOrServiceAreaIdFixedLengthImpl other = (CellGlobalIdOrServiceAreaIdFixedLengthImpl) obj;

		if (!Arrays.equals(data, other.data))

			return false;

		return true;

	}

}