refactor: Add DI and packages

9 files changed, 605 insertions, 0 deletions

diff --git a/src/main/kotlin/moe/nea/ledger/modules/AuctionHouseDetection.kt b/src/main/kotlin/moe/nea/ledger/modules/AuctionHouseDetection.kt
new file mode 100644
index 0000000..cbbff12
--- /dev/null
+++ b/src/main/kotlin/moe/nea/ledger/modules/AuctionHouseDetection.kt
@@ -0,0 +1,100 @@
+package moe.nea.ledger.modules
+
+import moe.nea.ledger.events.BeforeGuiAction
+import moe.nea.ledger.events.ChatReceived
+import moe.nea.ledger.ItemIdProvider
+import moe.nea.ledger.LedgerEntry
+import moe.nea.ledger.LedgerLogger
+import moe.nea.ledger.SHORT_NUMBER_PATTERN
+import moe.nea.ledger.getInternalId
+import moe.nea.ledger.getLore
+import moe.nea.ledger.parseShortNumber
+import moe.nea.ledger.unformattedString
+import moe.nea.ledger.useMatcher
+import moe.nea.ledger.utils.Inject
+import net.minecraft.client.gui.inventory.GuiChest
+import net.minecraft.inventory.ContainerChest
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
+import java.util.regex.Pattern
+
+class AuctionHouseDetection @Inject constructor(val ledger: LedgerLogger, val ids: ItemIdProvider) {
+    data class LastViewedItem(
+        val count: Int,
+        val id: String,
+    )
+    /*
+        You collected 8,712,000 coins from selling Ultimate Carrot Candy Upgrade to [VIP] kodokush in an auction!
+        You collected 60,000 coins from selling Walnut to [MVP++] Alea1337 in an auction!
+        You purchased 2x Walnut for 69 coins!
+        You purchased ◆ Ice Rune I for 4,000 coins!
+     */
+
+    val collectSold =
+        Pattern.compile("You collected (?<coins>$SHORT_NUMBER_PATTERN) coins? from selling (?<what>.*) to (?<buyer>.*) in an auction!")
+    val purchased =
+        Pattern.compile("You purchased (?:(?<amount>[0-9]+)x )?(?<what>.*) for (?<coins>$SHORT_NUMBER_PATTERN) coins!")
+    var lastViewedItems: MutableList<LastViewedItem> = mutableListOf()
+
+    @SubscribeEvent
+    fun onEvent(event: ChatReceived) {
+        collectSold.useMatcher(event.message) {
+            val lastViewedItem = lastViewedItems.removeLastOrNull()
+            ledger.logEntry(
+	            LedgerEntry(
+		            "AUCTION_SOLD",
+		            event.timestamp,
+		            parseShortNumber(group("coins")),
+		            lastViewedItem?.id,
+		            lastViewedItem?.count
+	            )
+            )
+        }
+        purchased.useMatcher(event.message) {
+            ledger.logEntry(
+	            LedgerEntry(
+		            "AUCTION_BOUGHT",
+		            event.timestamp,
+		            parseShortNumber(group("coins")),
+		            ids.findForName(group("what")),
+		            group("amount")?.toInt() ?: 1
+	            )
+            )
+        }
+    }
+
+    @SubscribeEvent
+    fun onBeforeAuctionCollected(event: BeforeGuiAction) {
+        val chest = (event.gui as? GuiChest) ?: return
+        val slots = chest.inventorySlots as ContainerChest
+        val name = slots.lowerChestInventory.displayName.unformattedText.unformattedString()
+
+        if (name == "BIN Auction View" || name == "Auction View") {
+            handleCollectSingleAuctionView(slots)
+        }
+        if (name == "Manage Auctions") {
+            handleCollectMultipleAuctionsView(slots)
+        }
+    }
+
+    private fun handleCollectMultipleAuctionsView(slots: ContainerChest) {
+        lastViewedItems =
+            (0 until slots.lowerChestInventory.sizeInventory)
+                .mapNotNull { slots.lowerChestInventory.getStackInSlot(it) }
+                .filter {
+                    it.getLore().contains("§7Status: §aSold!") // BINs
+                            || it.getLore().contains("§7Status: §aEnded!") // Auctions
+                }
+                .mapNotNull { LastViewedItem(it.stackSize, it.getInternalId() ?: return@mapNotNull null) }
+                .toMutableList()
+    }
+
+
+    fun handleCollectSingleAuctionView(slots: ContainerChest) {
+        val soldItem = slots.lowerChestInventory.getStackInSlot(9 + 4) ?: return
+        val id = soldItem.getInternalId() ?: return
+        val count = soldItem.stackSize
+        lastViewedItems = mutableListOf(LastViewedItem(count, id))
+    }
+
+
+}
\ No newline at end of file
diff --git a/src/main/kotlin/moe/nea/ledger/modules/BankDetection.kt b/src/main/kotlin/moe/nea/ledger/modules/BankDetection.kt
new file mode 100644
index 0000000..8d0fd81
--- /dev/null
+++ b/src/main/kotlin/moe/nea/ledger/modules/BankDetection.kt
@@ -0,0 +1,42 @@
+package moe.nea.ledger.modules
+
+import moe.nea.ledger.LedgerEntry
+import moe.nea.ledger.LedgerLogger
+import moe.nea.ledger.SHORT_NUMBER_PATTERN
+import moe.nea.ledger.events.ChatReceived
+import moe.nea.ledger.parseShortNumber
+import moe.nea.ledger.useMatcher
+import moe.nea.ledger.utils.Inject
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
+import java.util.regex.Pattern
+
+
+class BankDetection @Inject constructor(val ledger: LedgerLogger) {
+	val withdrawPattern =
+		Pattern.compile("^(You have withdrawn|Withdrew) (?<amount>$SHORT_NUMBER_PATTERN) coins?! (?:There's now|You now have) (?<newtotal>$SHORT_NUMBER_PATTERN) coins? (?:left in the account!|in your account!)$")
+	val depositPattern =
+		Pattern.compile("^(?:You have deposited|Deposited) (?<amount>$SHORT_NUMBER_PATTERN) coins?! (?:There's now|You now have) (?<newtotal>$SHORT_NUMBER_PATTERN) coins? (?:in your account!|in the account!)$")
+
+	@SubscribeEvent
+	fun onChat(event: ChatReceived) {
+		withdrawPattern.useMatcher(event.message) {
+			ledger.logEntry(
+				LedgerEntry(
+					"BANK_WITHDRAW",
+					event.timestamp,
+					parseShortNumber(group("amount")),
+				)
+			)
+		}
+		depositPattern.useMatcher(event.message) {
+			ledger.logEntry(
+				LedgerEntry(
+					"BANK_DEPOSIT",
+					event.timestamp,
+					parseShortNumber(group("amount")),
+				)
+			)
+		}
+	}
+
+}
diff --git a/src/main/kotlin/moe/nea/ledger/modules/BazaarDetection.kt b/src/main/kotlin/moe/nea/ledger/modules/BazaarDetection.kt
new file mode 100644
index 0000000..01c8bbc
--- /dev/null
+++ b/src/main/kotlin/moe/nea/ledger/modules/BazaarDetection.kt
@@ -0,0 +1,47 @@
+package moe.nea.ledger.modules
+
+import moe.nea.ledger.events.ChatReceived
+import moe.nea.ledger.ItemIdProvider
+import moe.nea.ledger.LedgerEntry
+import moe.nea.ledger.LedgerLogger
+import moe.nea.ledger.SHORT_NUMBER_PATTERN
+import moe.nea.ledger.parseShortNumber
+import moe.nea.ledger.useMatcher
+import moe.nea.ledger.utils.Inject
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
+import java.util.regex.Pattern
+
+class BazaarDetection @Inject constructor(val ledger: LedgerLogger, val ids: ItemIdProvider) {
+
+    val instaBuyPattern =
+        Pattern.compile("\\[Bazaar\\] Bought (?<count>$SHORT_NUMBER_PATTERN)x (?<what>.*) for (?<coins>$SHORT_NUMBER_PATTERN) coins!")
+    val instaSellPattern =
+        Pattern.compile("\\[Bazaar\\] Sold (?<count>$SHORT_NUMBER_PATTERN)x (?<what>.*) for (?<coins>$SHORT_NUMBER_PATTERN) coins!")
+
+
+    @SubscribeEvent
+    fun onInstSellChat(event: ChatReceived) {
+        instaBuyPattern.useMatcher(event.message) {
+            ledger.logEntry(
+                LedgerEntry(
+	                "BAZAAR_BUY_INSTANT",
+	                event.timestamp,
+	                parseShortNumber(group("coins")),
+	                ids.findForName(group("what")),
+	                parseShortNumber(group("count")).toInt(),
+                )
+            )
+        }
+        instaSellPattern.useMatcher(event.message) {
+            ledger.logEntry(
+                LedgerEntry(
+	                "BAZAAR_SELL_INSTANT",
+	                event.timestamp,
+	                parseShortNumber(group("coins")),
+	                ids.findForName(group("what")),
+	                parseShortNumber(group("count")).toInt(),
+                )
+            )
+        }
+    }
+}
diff --git a/src/main/kotlin/moe/nea/ledger/modules/BazaarOrderDetection.kt b/src/main/kotlin/moe/nea/ledger/modules/BazaarOrderDetection.kt
new file mode 100644
index 0000000..7e611ac
--- /dev/null
+++ b/src/main/kotlin/moe/nea/ledger/modules/BazaarOrderDetection.kt
@@ -0,0 +1,78 @@
+package moe.nea.ledger.modules
+
+import moe.nea.ledger.events.ChatReceived
+import moe.nea.ledger.ItemIdProvider
+import moe.nea.ledger.LedgerEntry
+import moe.nea.ledger.LedgerLogger
+import moe.nea.ledger.SHORT_NUMBER_PATTERN
+import moe.nea.ledger.mixin.AccessorGuiEditSign
+import moe.nea.ledger.parseShortNumber
+import moe.nea.ledger.useMatcher
+import moe.nea.ledger.utils.Inject
+import net.minecraft.client.gui.inventory.GuiEditSign
+import net.minecraftforge.client.event.GuiScreenEvent
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
+import java.util.regex.Pattern
+
+class BazaarOrderDetection @Inject constructor(val ledger: LedgerLogger, val ids: ItemIdProvider) {
+
+    val buyOrderClaimed =
+        Pattern.compile("\\[Bazaar] Claimed (?<amount>$SHORT_NUMBER_PATTERN)x (?<what>.*) worth (?<coins>$SHORT_NUMBER_PATTERN) coins? bought for $SHORT_NUMBER_PATTERN each!")
+    val sellOrderClaimed =
+        Pattern.compile("\\[Bazaar] Claimed (?<coins>$SHORT_NUMBER_PATTERN) coins? from selling (?<amount>$SHORT_NUMBER_PATTERN)x (?<what>.*) at $SHORT_NUMBER_PATTERN each!")
+    val orderFlipped =
+        Pattern.compile("\\[Bazaar] Order Flipped! (?<amount>$SHORT_NUMBER_PATTERN)x (?<what>.*) for (?<coins>$SHORT_NUMBER_PATTERN) coins? of total expected profit.")
+    val previousPricePattern =
+        Pattern.compile("(?<price>$SHORT_NUMBER_PATTERN)/u")
+    var lastFlippedPreviousPrice = 0.0
+
+    @SubscribeEvent
+    fun detectSignFlip(event: GuiScreenEvent.InitGuiEvent) {
+        val gui = event.gui
+        if (gui !is GuiEditSign) return
+        gui as AccessorGuiEditSign
+        val text = gui.tileEntity_ledger.signText
+        if (text[2].unformattedText != "Previous price:") return
+        previousPricePattern.useMatcher(text[3].unformattedText) {
+            lastFlippedPreviousPrice = parseShortNumber(group("price"))
+        }
+    }
+
+    @SubscribeEvent
+    fun detectBuyOrders(event: ChatReceived) {
+        orderFlipped.useMatcher(event.message) {
+            val amount = parseShortNumber(group("amount")).toInt()
+            ledger.logEntry(
+                LedgerEntry(
+                    "BAZAAR_BUY_ORDER",
+                    event.timestamp,
+                    lastFlippedPreviousPrice * amount,
+                    ids.findForName(group("what")),
+                    amount,
+                )
+            )
+        }
+        buyOrderClaimed.useMatcher(event.message) {
+            ledger.logEntry(
+                LedgerEntry(
+	                "BAZAAR_BUY_ORDER",
+	                event.timestamp,
+	                parseShortNumber(group("coins")),
+	                ids.findForName(group("what")),
+	                parseShortNumber(group("amount")).toInt(),
+                )
+            )
+        }
+        sellOrderClaimed.useMatcher(event.message) {
+            ledger.logEntry(
+                LedgerEntry(
+	                "BAZAAR_SELL_ORDER",
+	                event.timestamp,
+	                parseShortNumber(group("coins")),
+	                ids.findForName(group("what")),
+	                parseShortNumber(group("amount")).toInt(),
+                )
+            )
+        }
+    }
+}
diff --git a/src/main/kotlin/moe/nea/ledger/modules/BitsDetection.kt b/src/main/kotlin/moe/nea/ledger/modules/BitsDetection.kt
new file mode 100644
index 0000000..22b5392
--- /dev/null
+++ b/src/main/kotlin/moe/nea/ledger/modules/BitsDetection.kt
@@ -0,0 +1,58 @@
+package moe.nea.ledger.modules
+
+import moe.nea.ledger.events.ChatReceived
+import moe.nea.ledger.events.LateWorldLoadEvent
+import moe.nea.ledger.LedgerEntry
+import moe.nea.ledger.LedgerLogger
+import moe.nea.ledger.SHORT_NUMBER_PATTERN
+import moe.nea.ledger.ScoreboardUtil
+import moe.nea.ledger.parseShortNumber
+import moe.nea.ledger.unformattedString
+import moe.nea.ledger.useMatcher
+import moe.nea.ledger.utils.Inject
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
+import java.time.Instant
+
+class BitsDetection @Inject constructor(val ledger: LedgerLogger) {
+
+    var lastBits = -1
+
+    val bitScoreboardRegex = "Bits: (?<purse>$SHORT_NUMBER_PATTERN)".toPattern()
+
+    @SubscribeEvent
+    fun onWorldSwitch(event: LateWorldLoadEvent) {
+        ScoreboardUtil.getScoreboardStrings().forEach {
+            bitScoreboardRegex.useMatcher<Unit>(it.unformattedString()) {
+                val bits = parseShortNumber(group("purse")).toInt()
+                if (lastBits != bits) {
+                    ledger.logEntry(
+                        LedgerEntry(
+                            "BITS_PURSE_STATUS",
+                            Instant.now(),
+                            0.0,
+                            null,
+                            bits
+                        )
+                    )
+                    lastBits = bits
+                }
+                return
+            }
+        }
+    }
+
+    @SubscribeEvent
+    fun onEvent(event: ChatReceived) {
+        if (event.message.startsWith("You consumed a Booster Cookie!")) {
+            ledger.logEntry(
+                LedgerEntry(
+                    "BOOSTER_COOKIE_ATE",
+                    Instant.now(),
+                    0.0,
+                    null,
+                    null,
+                )
+            )
+        }
+    }
+}
diff --git a/src/main/kotlin/moe/nea/ledger/modules/BitsShopDetection.kt b/src/main/kotlin/moe/nea/ledger/modules/BitsShopDetection.kt
new file mode 100644
index 0000000..2033d8d
--- /dev/null
+++ b/src/main/kotlin/moe/nea/ledger/modules/BitsShopDetection.kt
@@ -0,0 +1,59 @@
+package moe.nea.ledger.modules
+
+import moe.nea.ledger.events.ChatReceived
+import moe.nea.ledger.events.GuiClickEvent
+import moe.nea.ledger.LedgerEntry
+import moe.nea.ledger.LedgerLogger
+import moe.nea.ledger.SHORT_NUMBER_PATTERN
+import moe.nea.ledger.getInternalId
+import moe.nea.ledger.getLore
+import moe.nea.ledger.parseShortNumber
+import moe.nea.ledger.unformattedString
+import moe.nea.ledger.useMatcher
+import moe.nea.ledger.utils.Inject
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
+import java.time.Instant
+
+class BitsShopDetection @Inject constructor(val ledger: LedgerLogger) {
+
+
+    data class BitShopEntry(
+        val id: String,
+        val bitPrice: Int,
+        val timestamp: Long = System.currentTimeMillis()
+    )
+
+    var lastClickedBitShopItem: BitShopEntry? = null
+    var bitCostPattern = "(?<cost>$SHORT_NUMBER_PATTERN) Bits".toPattern()
+
+    @SubscribeEvent
+    fun recordLastBitPrice(event: GuiClickEvent) {
+        val slot = event.slotIn ?: return
+        val name = slot.inventory.displayName.unformattedText.unformattedString()
+        if (name != "Community Shop" && !name.startsWith("Bits Shop"))
+            return
+        val stack = slot.stack ?: return
+        val id = stack.getInternalId() ?: return
+        val bitPrice = stack.getLore()
+            .firstNotNullOfOrNull { bitCostPattern.useMatcher(it.unformattedString()) { parseShortNumber(group("cost")).toInt() } }
+            ?: return
+        lastClickedBitShopItem = BitShopEntry(id, bitPrice)
+    }
+
+    @SubscribeEvent
+    fun onChat(event: ChatReceived) {
+        if (event.message.startsWith("You bought ")) {
+            val lastBit = lastClickedBitShopItem ?: return
+            if (System.currentTimeMillis() - lastBit.timestamp > 5000) return
+            ledger.logEntry(
+                LedgerEntry(
+                    "COMMUNITY_SHOP_BUY", Instant.now(),
+                    lastBit.bitPrice.toDouble(),
+                    lastBit.id,
+                    1
+                )
+            )
+        }
+    }
+
+}
\ No newline at end of file
diff --git a/src/main/kotlin/moe/nea/ledger/modules/DungeonChestDetection.kt b/src/main/kotlin/moe/nea/ledger/modules/DungeonChestDetection.kt
new file mode 100644
index 0000000..4bdd37c
--- /dev/null
+++ b/src/main/kotlin/moe/nea/ledger/modules/DungeonChestDetection.kt
@@ -0,0 +1,121 @@
+package moe.nea.ledger.modules
+
+import moe.nea.ledger.events.ChatReceived
+import moe.nea.ledger.events.GuiClickEvent
+import moe.nea.ledger.LedgerEntry
+import moe.nea.ledger.LedgerLogger
+import moe.nea.ledger.SHORT_NUMBER_PATTERN
+import moe.nea.ledger.getDisplayNameU
+import moe.nea.ledger.getLore
+import moe.nea.ledger.parseShortNumber
+import moe.nea.ledger.unformattedString
+import moe.nea.ledger.useMatcher
+import moe.nea.ledger.utils.Inject
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
+import net.minecraftforge.fml.common.gameevent.TickEvent
+import java.time.Instant
+import java.util.regex.Pattern
+
+class DungeonChestDetection @Inject constructor(val logger: LedgerLogger) {
+
+    /*{
+        id: "minecraft:chest",
+        Count: 1b,
+        tag: {
+            display: {
+                Lore: ["§7Purchase this chest to receive the", "§7rewards above. You can only open", "§7one chest per Dungeons run -", "§7choose wisely!", "", "§7Cost", "§625,000 Coins", "§9Dungeon Chest Key", "", "§7§cNOTE: Coins are withdrawn from your", "§cbank if you don't have enough in", "§cyour purse."],
+                Name: "§aOpen Reward Chest"
+            }
+        },
+        Damage: 0s
+    }
+
+    {
+    id: "minecraft:feather",
+    Count: 1b,
+    tag: {
+        overrideMeta: 1b,
+        ench: [],
+        HideFlags: 254,
+        display: {
+            Lore: ["§7Consume a §9Kismet Feather §7to reroll", "§7the loot within this chest.", "", "§7You may only use a feather once", "§7per dungeon run.", "", "§eClick to reroll this chest!"],
+            Name: "§aReroll Chest"
+        },
+        AttributeModifiers: []
+    },
+    Damage: 0s
+}
+    */
+    val costPattern = Pattern.compile("(?<cost>$SHORT_NUMBER_PATTERN) Coins")
+
+
+    data class ChestCost(
+        val cost: Double,
+        val openTimestamp: Long,
+        val hasKey: Boolean,
+    )
+
+    var lastOpenedChest: ChestCost? = null
+
+    @SubscribeEvent
+    fun onKismetClick(event: GuiClickEvent) {
+        val slot = event.slotIn ?: return
+        if (!slot.inventory.displayName.unformattedText.unformattedString().endsWith(" Chest")) return
+        val stack = slot.stack ?: return
+        if (stack.getDisplayNameU() == "§aReroll Chest") {
+            logger.logEntry(
+                LedgerEntry(
+                    "KISMET_REROLL",
+                    Instant.now(),
+                    0.0,
+                    itemId = "KISMET_FEATHER",
+                    itemAmount = 1
+                )
+            )
+        }
+    }
+
+    @SubscribeEvent
+    fun onRewardChestClick(event: GuiClickEvent) {
+        val slot = event.slotIn ?: return
+        if (!slot.inventory.displayName.unformattedText.unformattedString().endsWith(" Chest")) return
+        val stack = slot.stack ?: return
+        val name = stack.getDisplayNameU()
+        if (name != "§aOpen Reward Chest") return
+        val lore = stack.getLore()
+        val costIndex = lore.indexOf("§7Cost")
+        if (costIndex < 0 || costIndex + 1 !in lore.indices) return
+        val cost = costPattern.useMatcher(lore[costIndex + 1].unformattedString()) {
+            parseShortNumber(group("cost"))
+        } ?: 0.0 // Free chest!
+        val hasKey = lore.contains("§9Dungeon Chest Key")
+        lastOpenedChest?.let(::completeTransaction)
+        lastOpenedChest = ChestCost(cost, System.currentTimeMillis(), hasKey)
+    }
+
+    @SubscribeEvent
+    fun onChatMessage(event: ChatReceived) {
+        if (event.message == "You don't have that many coins in the bank!")
+            lastOpenedChest = null
+    }
+
+    fun completeTransaction(toOpen: ChestCost) {
+        lastOpenedChest = null
+        logger.logEntry(
+            LedgerEntry(
+                "DUNGEON_CHEST_OPEN",
+                Instant.ofEpochMilli(toOpen.openTimestamp),
+                toOpen.cost,
+                itemId = if (toOpen.hasKey) "DUNGEON_CHEST_KEY" else null
+            )
+        )
+    }
+
+    @SubscribeEvent
+    fun onTick(event: TickEvent) {
+        val toOpen = lastOpenedChest
+        if (toOpen != null && toOpen.openTimestamp + 1000L < System.currentTimeMillis()) {
+            completeTransaction(toOpen)
+        }
+    }
+}
diff --git a/src/main/kotlin/moe/nea/ledger/modules/MinionDetection.kt b/src/main/kotlin/moe/nea/ledger/modules/MinionDetection.kt
new file mode 100644
index 0000000..73d06fa
--- /dev/null
+++ b/src/main/kotlin/moe/nea/ledger/modules/MinionDetection.kt
@@ -0,0 +1,54 @@
+package moe.nea.ledger.modules
+
+import moe.nea.ledger.events.BeforeGuiAction
+import moe.nea.ledger.events.ChatReceived
+import moe.nea.ledger.ExpiringValue
+import moe.nea.ledger.LedgerEntry
+import moe.nea.ledger.LedgerLogger
+import moe.nea.ledger.ROMAN_NUMBER_PATTERN
+import moe.nea.ledger.SHORT_NUMBER_PATTERN
+import moe.nea.ledger.parseRomanNumber
+import moe.nea.ledger.parseShortNumber
+import moe.nea.ledger.unformattedString
+import moe.nea.ledger.useMatcher
+import moe.nea.ledger.utils.Inject
+import net.minecraft.client.gui.inventory.GuiChest
+import net.minecraft.inventory.ContainerChest
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
+import java.time.Instant
+import kotlin.time.Duration.Companion.seconds
+
+class MinionDetection @Inject constructor(val ledger: LedgerLogger) {
+	// §aYou received §r§6367,516.8 coins§r§a!
+	val hopperCollectPattern = "You received (?<amount>$SHORT_NUMBER_PATTERN) coins?!".toPattern()
+	val minionNamePattern = "(?<name>.*) Minion (?<level>$ROMAN_NUMBER_PATTERN)".toPattern()
+
+	var lastOpenedMinion = ExpiringValue.empty<String>()
+
+	@SubscribeEvent
+	fun onBeforeClaim(event: BeforeGuiAction) {
+		val container = event.gui as? GuiChest ?: return
+		val inv = (container.inventorySlots as ContainerChest).lowerChestInventory
+		val invName = inv.displayName.unformattedText.unformattedString()
+		minionNamePattern.useMatcher(invName) {
+			val name = group("name")
+			val level = parseRomanNumber(group("level"))
+			lastOpenedMinion = ExpiringValue(name.uppercase().replace(" ", "_") + "_" + level)
+		}
+	}
+
+
+	@SubscribeEvent
+	fun onChat(event: ChatReceived) {
+		hopperCollectPattern.useMatcher(event.message) {
+			val minionName = lastOpenedMinion.consume(3.seconds)
+			ledger.logEntry(LedgerEntry(
+				"AUTOMERCHANT_PROFIT_COLLECT",
+				Instant.now(),
+				parseShortNumber(group("amount")),
+				minionName, // TODO: switch to its own column idk
+			))
+		}
+	}
+
+}
\ No newline at end of file
diff --git a/src/main/kotlin/moe/nea/ledger/modules/NpcDetection.kt b/src/main/kotlin/moe/nea/ledger/modules/NpcDetection.kt
new file mode 100644
index 0000000..68f0257
--- /dev/null
+++ b/src/main/kotlin/moe/nea/ledger/modules/NpcDetection.kt
@@ -0,0 +1,46 @@
+package moe.nea.ledger.modules
+
+import moe.nea.ledger.events.ChatReceived
+import moe.nea.ledger.ItemIdProvider
+import moe.nea.ledger.LedgerEntry
+import moe.nea.ledger.LedgerLogger
+import moe.nea.ledger.SHORT_NUMBER_PATTERN
+import moe.nea.ledger.parseShortNumber
+import moe.nea.ledger.useMatcher
+import moe.nea.ledger.utils.Inject
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
+import java.util.regex.Pattern
+
+class NpcDetection @Inject constructor(val ledger: LedgerLogger, val ids: ItemIdProvider) {
+
+	val npcBuyPattern =
+		Pattern.compile("You bought (back )?(?<what>.*?) (x(?<count>$SHORT_NUMBER_PATTERN) )?for (?<coins>$SHORT_NUMBER_PATTERN) Coins!")
+	val npcSellPattern =
+		Pattern.compile("You sold (?<what>.*) (x(?<count>$SHORT_NUMBER_PATTERN) )?for (?<coins>$SHORT_NUMBER_PATTERN) Coins!")
+
+	@SubscribeEvent
+	fun onNpcBuy(event: ChatReceived) {
+		npcBuyPattern.useMatcher(event.message) {
+			ledger.logEntry(
+				LedgerEntry(
+					"NPC_BUY",
+					event.timestamp,
+					parseShortNumber(group("coins")),
+					ids.findForName(group("what")),
+					group("count")?.let(::parseShortNumber)?.toInt() ?: 1,
+				)
+			)
+		}
+		npcSellPattern.useMatcher(event.message) {
+			ledger.logEntry(
+				LedgerEntry(
+					"NPC_SELL",
+					event.timestamp,
+					parseShortNumber(group("coins")),
+					ids.findForName(group("what")),
+					group("count")?.let(::parseShortNumber)?.toInt() ?: 1,
+				)
+			)
+		}
+	}
+}