feat: Add visitor trading detection

1 files changed, 28 insertions, 0 deletions

diff --git a/src/main/kotlin/moe/nea/ledger/LedgerEntry.kt b/src/main/kotlin/moe/nea/ledger/LedgerEntry.kt
new file mode 100644
index 0000000..dec0727
--- /dev/null
+++ b/src/main/kotlin/moe/nea/ledger/LedgerEntry.kt
@@ -0,0 +1,28 @@
+package moe.nea.ledger
+
+import com.google.gson.JsonObject
+import java.time.Instant
+import java.util.UUID
+
+data class LedgerEntry(
+	val transactionType: TransactionType,
+	val timestamp: Instant,
+	val items: List<ItemChange>,
+) {
+	fun intoJson(profileId: UUID?): JsonObject {
+		val coinAmount = items.find { it.itemId == ItemId.COINS || it.itemId == ItemId.BITS }?.count
+		val nonCoins = items.find { it.itemId != ItemId.COINS && it.itemId != ItemId.BITS }
+		return JsonObject().apply {
+			addProperty("transactionType", transactionType.name)
+			addProperty("timestamp", timestamp.toEpochMilli().toString())
+			addProperty("totalTransactionValue", coinAmount)
+			addProperty("itemId", nonCoins?.itemId?.string ?: "")
+			addProperty("itemAmount", nonCoins?.count ?: 0.0)
+			addProperty("profileId", profileId.toString())
+			addProperty(
+				"playerId",
+				UUIDUtil.getPlayerUUID().toString()
+			)
+		}
+	}
+}
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