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22: Decode cumulativeInterestSnapshot from Position account

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Morten Green Hermansen
2026-06-30 11:45:55 +02:00
parent 646fbe7947
commit ae5172802e
1 changed files with 25 additions and 1 deletions
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src/main/tjava/com/r35157/libs/jupiter/perps/impl/anchoridl/AnchorIdlJupiterPerpsPositionDecoder.tjava
+25 -1
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@@ -7,6 +7,7 @@ import com.r35157.libs.jupiter.perps.JupiterPerpsPositionDirection;
import com.r35157.libs.solana.SolanaAccountInfo; import com.r35157.libs.solana.SolanaAccountInfo;
import java.math.BigDecimal; import java.math.BigDecimal;
import java.math.BigInteger;
import java.nio.ByteBuffer; import java.nio.ByteBuffer;
import java.nio.ByteOrder; import java.nio.ByteOrder;
import java.util.Base64; import java.util.Base64;
@@ -56,6 +57,13 @@ class AnchorIdlJupiterPerpsPositionDecoder {
.valueOf(rawSizeUsd) .valueOf(rawSizeUsd)
.movePointLeft(6); .movePointLeft(6);
BigInteger cumulativeInterestSnapshot = readU128(
data,
CUMULATIVE_INTEREST_SNAPSHOT_OFFSET
);
System.out.println("cumulativeInterestSnapshot = " + cumulativeInterestSnapshot);
JupiterPerpsPosition pos = new JupiterPerpsPosition( JupiterPerpsPosition pos = new JupiterPerpsPosition(
positionAccount, positionAccount,
entryPrice, entryPrice,
@@ -115,11 +123,25 @@ class AnchorIdlJupiterPerpsPositionDecoder {
return base58.encode(publicKeyBytes); return base58.encode(publicKeyBytes);
} }
private static BigInteger readU128(
byte[] data,
int offset
) {
byte[] bytes = new byte[U128_LENGTH];
for (int i = 0; i < U128_LENGTH; i++) {
bytes[i] = data[offset + U128_LENGTH - 1 - i];
}
return new BigInteger(1, bytes);
}
private static final int ANCHOR_DISCRIMINATOR_LENGTH = 8; private static final int ANCHOR_DISCRIMINATOR_LENGTH = 8;
private static final int PUBLIC_KEY_LENGTH = 32; private static final int PUBLIC_KEY_LENGTH = 32;
private static final int I64_LENGTH = 8;
private static final int SIDE_ENUM_LENGTH = 1; private static final int SIDE_ENUM_LENGTH = 1;
private static final int I64_LENGTH = 8;
private static final int U64_LENGTH = 8; private static final int U64_LENGTH = 8;
private static final int U128_LENGTH = 16;
private static final int OWNER_OFFSET = ANCHOR_DISCRIMINATOR_LENGTH; private static final int OWNER_OFFSET = ANCHOR_DISCRIMINATOR_LENGTH;
private static final int POOL_OFFSET = OWNER_OFFSET + PUBLIC_KEY_LENGTH; private static final int POOL_OFFSET = OWNER_OFFSET + PUBLIC_KEY_LENGTH;
@@ -131,6 +153,8 @@ class AnchorIdlJupiterPerpsPositionDecoder {
private static final int PRICE_OFFSET = SIDE_OFFSET + SIDE_ENUM_LENGTH; private static final int PRICE_OFFSET = SIDE_OFFSET + SIDE_ENUM_LENGTH;
private static final int SIZE_USD_OFFSET = PRICE_OFFSET + U64_LENGTH; private static final int SIZE_USD_OFFSET = PRICE_OFFSET + U64_LENGTH;
private static final int COLLATERAL_USD_OFFSET = SIZE_USD_OFFSET + U64_LENGTH; private static final int COLLATERAL_USD_OFFSET = SIZE_USD_OFFSET + U64_LENGTH;
private static final int REALISED_PNL_USD_OFFSET = COLLATERAL_USD_OFFSET + U64_LENGTH;
private static final int CUMULATIVE_INTEREST_SNAPSHOT_OFFSET = REALISED_PNL_USD_OFFSET + I64_LENGTH;
private static final Base58Codec base58 = new Base58CodecImpl(); private static final Base58Codec base58 = new Base58CodecImpl();
} }