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path: root/src/main/kotlin/moe/nea/ledger/modules/BazaarOrderDetection.kt
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package moe.nea.ledger.modules

import moe.nea.ledger.ItemChange
import moe.nea.ledger.ItemId
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.TransactionType
import moe.nea.ledger.events.ChatReceived
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(
					TransactionType.BAZAAR_BUY_ORDER,
					event.timestamp,
					listOf(
						ItemChange.loseCoins(lastFlippedPreviousPrice * amount),
						ItemChange.gain(
							ids.findForName(group("what")) ?: ItemId.NIL,
							amount,
						)
					)
				)
			)
		}
		buyOrderClaimed.useMatcher(event.message) {
			ledger.logEntry(
				LedgerEntry(
					TransactionType.BAZAAR_BUY_ORDER,
					event.timestamp,
					listOf(
						ItemChange.loseCoins(parseShortNumber(group("coins"))),
						ItemChange.gain(
							ids.findForName(group("what")) ?: ItemId.NIL,
							parseShortNumber(group("amount"))
						)
					),
				)
			)
		}
		sellOrderClaimed.useMatcher(event.message) {
			ledger.logEntry(
				LedgerEntry(
					TransactionType.BAZAAR_SELL_ORDER,
					event.timestamp,
					listOf(
						ItemChange.gainCoins(
							parseShortNumber(group("coins"))
						),
						ItemChange.lose(
							ids.findForName(group("what")) ?: ItemId.NIL,
							parseShortNumber(group("amount")),
						)
					),
				)
			)
		}
	}
}