2 files changed, 78 insertions, 0 deletions
diff --git a/basetypes/src/main/kotlin/moe/nea/ledger/ItemChange.kt b/basetypes/src/main/kotlin/moe/nea/ledger/ItemChange.kt
new file mode 100644
index 0000000..6cadf27
--- /dev/null
+++ b/basetypes/src/main/kotlin/moe/nea/ledger/ItemChange.kt
@@ -0,0 +1,43 @@
+package moe.nea.ledger
+
+data class ItemChange(
+	val itemId: ItemId,
+	val count: Double,
+	val direction: ChangeDirection,
+) {
+
+	enum class ChangeDirection {
+		GAINED,
+		TRANSFORM,
+		SYNC,
+		CATALYST,
+		LOST;
+
+	}
+
+	companion object {
+		fun gainCoins(number: Double): ItemChange {
+			return gain(ItemId.COINS, number)
+		}
+
+		fun unpair(direction: ChangeDirection, pair: Pair<ItemId, Double>): ItemChange {
+			return ItemChange(pair.first, pair.second, direction)
+		}
+
+		fun unpairGain(pair: Pair<ItemId, Double>) = unpair(ChangeDirection.GAINED, pair)
+		fun unpairLose(pair: Pair<ItemId, Double>) = unpair(ChangeDirection.LOST, pair)
+
+		fun gain(itemId: ItemId, amount: Number): ItemChange {
+			return ItemChange(itemId, amount.toDouble(), ChangeDirection.GAINED)
+		}
+
+		fun lose(itemId: ItemId, amount: Number): ItemChange {
+			return ItemChange(itemId, amount.toDouble(), ChangeDirection.LOST)
+		}
+
+		fun loseCoins(number: Double): ItemChange {
+			return lose(ItemId.COINS, number)
+		}
+
+	}
+}
+\ No newline at end of file
diff --git a/basetypes/src/main/kotlin/moe/nea/ledger/TransactionType.kt b/basetypes/src/main/kotlin/moe/nea/ledger/TransactionType.kt
new file mode 100644
index 0000000..33c633d
--- /dev/null
+++ b/basetypes/src/main/kotlin/moe/nea/ledger/TransactionType.kt
@@ -0,0 +1,35 @@
+package moe.nea.ledger
+
+enum class TransactionType {
+	ACCESSORIES_SWAPPING,
+	ALLOWANCE_GAIN,
+	AUCTION_BOUGHT,
+	AUCTION_LISTING_CHARGE,
+	AUCTION_SOLD,
+	AUTOMERCHANT_PROFIT_COLLECT,
+	BANK_DEPOSIT,
+	BANK_WITHDRAW,
+	BAZAAR_BUY_INSTANT,
+	BAZAAR_BUY_ORDER,
+	BAZAAR_SELL_INSTANT,
+	BAZAAR_SELL_ORDER,
+	BITS_PURSE_STATUS,
+	BOOSTER_COOKIE_ATE,
+	CAPSAICIN_EYEDROPS_USED,
+	COMMUNITY_SHOP_BUY,
+	CORPSE_DESECRATED,
+	DIE_ROLLED,
+	DRACONIC_SACRIFICE,
+	DUNGEON_CHEST_OPEN,
+	FORGED,
+	GOD_POTION_DRANK,
+	GOD_POTION_MIXIN_DRANK,
+	KAT_TIMESKIP,
+	KAT_UPGRADE,
+	KISMET_REROLL,
+	KUUDRA_CHEST_OPEN,
+	NPC_BUY,
+	NPC_SELL,
+	VISITOR_BARGAIN,
+	WYRM_EVOKED,
+}
+\ No newline at end of file