/* ====================================================================
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You 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.
==================================================================== */

package org.apache.poi.ddf;

import static org.apache.poi.util.GenericRecordUtil.getBitsAsString;

import java.util.Map;
import java.util.function.Supplier;

import org.apache.poi.util.GenericRecordUtil;
import org.apache.poi.util.LittleEndian;

/**
 * Together the the EscherOptRecord this record defines some of the basic
 * properties of a shape.
 */
public class EscherSpRecord extends EscherRecord {
    public static final short RECORD_ID = EscherRecordTypes.SP.typeID;

    public static final int FLAG_GROUP = 0x0001;
    public static final int FLAG_CHILD = 0x0002;
    public static final int FLAG_PATRIARCH = 0x0004;
    public static final int FLAG_DELETED = 0x0008;
    public static final int FLAG_OLESHAPE = 0x0010;
    public static final int FLAG_HAVEMASTER = 0x0020;
    public static final int FLAG_FLIPHORIZ = 0x0040;
    public static final int FLAG_FLIPVERT = 0x0080;
    public static final int FLAG_CONNECTOR = 0x0100;
    public static final int FLAG_HAVEANCHOR = 0x0200;
    public static final int FLAG_BACKGROUND = 0x0400;
    public static final int FLAG_HASSHAPETYPE = 0x0800;

    private static final int[] FLAGS_MASKS = {
        FLAG_GROUP,
        FLAG_CHILD,
        FLAG_PATRIARCH,
        FLAG_DELETED,
        FLAG_OLESHAPE,
        FLAG_HAVEMASTER,
        FLAG_FLIPHORIZ,
        FLAG_FLIPVERT,
        FLAG_CONNECTOR,
        FLAG_HAVEANCHOR,
        FLAG_BACKGROUND,
        FLAG_HASSHAPETYPE
    };

    private static final String[] FLAGS_NAMES = {
            "GROUP",
            "CHILD",
            "PATRIARCH",
            "DELETED",
            "OLESHAPE",
            "HAVEMASTER",
            "FLIPHORIZ",
            "FLIPVERT",
            "CONNECTOR",
            "HAVEANCHOR",
            "BACKGROUND",
            "HASSHAPETYPE"
    };

    private int field_1_shapeId;
    private int field_2_flags;

    public EscherSpRecord() {}

    public EscherSpRecord(EscherSpRecord other) {
        super(other);
        field_1_shapeId = other.field_1_shapeId;
        field_2_flags = other.field_2_flags;
    }

    @Override
    public int fillFields(byte[] data, int offset, EscherRecordFactory recordFactory) {
        readHeader( data, offset );
        int pos            = offset + 8;
        int size           = 0;
        field_1_shapeId    =  LittleEndian.getInt( data, pos + size );     size += 4;
        field_2_flags      =  LittleEndian.getInt( data, pos + size );     size += 4;
        return getRecordSize();
    }

    /**
     * This method serializes this escher record into a byte array.
     *
     * @param offset   The offset into <code>data</code> to start writing the record data to.
     * @param data     The byte array to serialize to.
     * @param listener A listener to retrieve start and end callbacks.  Use a <code>NullEscherSerailizationListener</code> to ignore these events.
     * @return The number of bytes written.
     *
     * @see NullEscherSerializationListener
     */
    @Override
    public int serialize( int offset, byte[] data, EscherSerializationListener listener )
    {
        listener.beforeRecordSerialize( offset, getRecordId(), this );
        LittleEndian.putShort( data, offset, getOptions() );
        LittleEndian.putShort( data, offset + 2, getRecordId() );
        int remainingBytes = 8;
        LittleEndian.putInt( data, offset + 4, remainingBytes );
        LittleEndian.putInt( data, offset + 8, field_1_shapeId );
        LittleEndian.putInt( data, offset + 12, field_2_flags );
        listener.afterRecordSerialize( offset + getRecordSize(), getRecordId(), getRecordSize(), this );
        return 8 + 8;
    }

    @Override
    public int getRecordSize()
    {
        return 8 + 8;
    }

    @Override
    public short getRecordId() {
        return RECORD_ID;
    }

    @Override
    public String getRecordName() {
        return EscherRecordTypes.SP.recordName;
    }

    /**
     * Converts the shape flags into a more descriptive name.
     */
    private String decodeFlags( int flags )
    {
        StringBuilder result = new StringBuilder();
        result.append( ( flags & FLAG_GROUP ) != 0 ? "|GROUP" : "" );
        result.append( ( flags & FLAG_CHILD ) != 0 ? "|CHILD" : "" );
        result.append( ( flags & FLAG_PATRIARCH ) != 0 ? "|PATRIARCH" : "" );
        result.append( ( flags & FLAG_DELETED ) != 0 ? "|DELETED" : "" );
        result.append( ( flags & FLAG_OLESHAPE ) != 0 ? "|OLESHAPE" : "" );
        result.append( ( flags & FLAG_HAVEMASTER ) != 0 ? "|HAVEMASTER" : "" );
        result.append( ( flags & FLAG_FLIPHORIZ ) != 0 ? "|FLIPHORIZ" : "" );
        result.append( ( flags & FLAG_FLIPVERT ) != 0 ? "|FLIPVERT" : "" );
        result.append( ( flags & FLAG_CONNECTOR ) != 0 ? "|CONNECTOR" : "" );
        result.append( ( flags & FLAG_HAVEANCHOR ) != 0 ? "|HAVEANCHOR" : "" );
        result.append( ( flags & FLAG_BACKGROUND ) != 0 ? "|BACKGROUND" : "" );
        result.append( ( flags & FLAG_HASSHAPETYPE ) != 0 ? "|HASSHAPETYPE" : "" );

        //need to check, else blows up on some records - bug 34435
        if(result.length() > 0) {
            result.deleteCharAt(0);
        }
        return result.toString();
    }

    /**
     * @return  A number that identifies this shape
     */
    public int getShapeId()
    {
        return field_1_shapeId;
    }

    /**
     * Sets a number that identifies this shape.
     *
     * @param field_1_shapeId the shape id
     */
    public void setShapeId( int field_1_shapeId )
    {
        this.field_1_shapeId = field_1_shapeId;
    }

    /**
     * The flags that apply to this shape.
     *
     * @return the flags
     *
     * @see #FLAG_GROUP
     * @see #FLAG_CHILD
     * @see #FLAG_PATRIARCH
     * @see #FLAG_DELETED
     * @see #FLAG_OLESHAPE
     * @see #FLAG_HAVEMASTER
     * @see #FLAG_FLIPHORIZ
     * @see #FLAG_FLIPVERT
     * @see #FLAG_CONNECTOR
     * @see #FLAG_HAVEANCHOR
     * @see #FLAG_BACKGROUND
     * @see #FLAG_HASSHAPETYPE
     */
    public int getFlags()
    {
        return field_2_flags;
    }

    /**
     * The flags that apply to this shape.
     *
     * @param field_2_flags the flags
     *
     * @see #FLAG_GROUP
     * @see #FLAG_CHILD
     * @see #FLAG_PATRIARCH
     * @see #FLAG_DELETED
     * @see #FLAG_OLESHAPE
     * @see #FLAG_HAVEMASTER
     * @see #FLAG_FLIPHORIZ
     * @see #FLAG_FLIPVERT
     * @see #FLAG_CONNECTOR
     * @see #FLAG_HAVEANCHOR
     * @see #FLAG_BACKGROUND
     * @see #FLAG_HASSHAPETYPE
     */
    public void setFlags( int field_2_flags )
    {
        this.field_2_flags = field_2_flags;
    }

    /**
     * Returns shape type. Must be one of MSOSPT values (see [MS-ODRAW] for
     * details).
     *
     * @return shape type
     */
    public short getShapeType()
    {
        return getInstance();
    }

    /**
     * Sets shape type. Must be one of MSOSPT values (see [MS-ODRAW] for
     * details).
     *
     * @param value
     *            new shape type
     */
    public void setShapeType( short value )
    {
        setInstance( value );
    }

    @Override
    public Map<String, Supplier<?>> getGenericProperties() {
        return GenericRecordUtil.getGenericProperties(
            "base", super::getGenericProperties,
            "shapeType", this::getShapeType,
            "shapeId", this::getShapeId,
            "flags", getBitsAsString(this::getFlags, FLAGS_MASKS, FLAGS_NAMES)
        );
    }

    @Override
    public Enum getGenericRecordType() {
        return EscherRecordTypes.SP;
    }

    @Override
    public EscherSpRecord copy() {
        return new EscherSpRecord(this);
    }
}