package DNA.Core;

import java.io.IOException;

import DNA.UInt256;

import DNA.IO.BinaryReader;

import DNA.IO.BinaryWriter;

import DNA.IO.Serializable;

import DNA.IO.Json.JNumber;

import DNA.IO.Json.JObject;

import DNA.IO.Json.JString;

/**

* 交易输入

*/

public class TransactionInput implements Serializable {

/**

* 引用交易的散列值

*/

public UInt256 prevHash;

/**

* 引用交易输出的索引

*/

public short prevIndex;

@Override

public boolean equals(Object obj) {

if (this == obj) {

return true;

}

if (null == obj) {

return false;

}

if (!(obj instanceof TransactionInput)) {

return false;

}

TransactionInput other = (TransactionInput) obj;

return prevHash.equals(other.prevHash) && prevIndex == other.prevIndex;

}

@Override

public int hashCode() {

return prevHash.hashCode() + prevIndex;

}

/**

* byte格式数据反序列化

*/

@Override

public void deserialize(BinaryReader reader) throws IOException {

try {

prevHash = reader.readSerializable(UInt256.class);

prevIndex = reader.readShort();

// prevIndex = (short) reader.readVarInt();

} catch (InstantiationException | IllegalAccessException e) {

}

}

@Override

public void serialize(BinaryWriter writer) throws IOException {

writer.writeSerializable(prevHash);

writer.writeShort(prevIndex);

// writer.writeVarInt(prevIndex);

}

public JObject json() {

JObject json = new JObject();

json.set("txid", new JString(prevHash.toString()));

json.set("vout", new JNumber(Short.toUnsignedInt(prevIndex)));

return json;

}

@Override

public String toString() {

return "TransactionInput [prevHash=" + prevHash + ", prevIndex="

+ prevIndex + "]";

}

}