From 22a4c45ce1435083c4e16052cff2aa6da8b7917f Mon Sep 17 00:00:00 2001
From: 90 <hi@90.gripe>
Date: Mon, 29 Apr 2024 17:08:11 +0100
Subject: [PATCH] Fix incorrect bounds check, restrict interface to only work
 with learned items

---
 .../_90/appliede/iface/EMCInterfaceLogic.java      | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/main/java/gripe/_90/appliede/iface/EMCInterfaceLogic.java b/src/main/java/gripe/_90/appliede/iface/EMCInterfaceLogic.java
index c2e505c..151fa4b 100644
--- a/src/main/java/gripe/_90/appliede/iface/EMCInterfaceLogic.java
+++ b/src/main/java/gripe/_90/appliede/iface/EMCInterfaceLogic.java
@@ -215,6 +215,12 @@ private boolean tryUsePlan(int slot, AEKey what, int amount) {
             return false;
         }
 
+        var knowledge = grid.getService(KnowledgeService.class);
+
+        if (!knowledge.getKnowledge().hasKnowledge(itemKey.toStack())) {
+            return false;
+        }
+
         if (amount < 0) {
             amount = -amount;
             var inSlot = storage.getStack(slot);
@@ -227,7 +233,7 @@ private boolean tryUsePlan(int slot, AEKey what, int amount) {
             var totalEmc = itemEmc.multiply(BigInteger.valueOf(amount));
             var insertedItems = 0;
 
-            while (totalEmc.compareTo(BigInteger.valueOf(Long.MAX_VALUE)) > 0) {
+            while (totalEmc.compareTo(BigInteger.ZERO) > 0) {
                 var toDeposit = clampedLong(totalEmc);
                 var energyToExpend = PowerMultiplier.CONFIG.multiply(toDeposit);
                 var availablePower = grid.getEnergyService()
@@ -238,9 +244,7 @@ private boolean tryUsePlan(int slot, AEKey what, int amount) {
                 }
 
                 grid.getEnergyService().extractAEPower(energyToExpend, Actionable.MODULATE, PowerMultiplier.CONFIG);
-                grid.getService(KnowledgeService.class)
-                        .getStorage()
-                        .insert(EMCKey.base(), toDeposit, Actionable.MODULATE, requestSource);
+                knowledge.getStorage().insert(EMCKey.base(), toDeposit, Actionable.MODULATE, requestSource);
 
                 var deposited = BigInteger.valueOf(toDeposit);
                 insertedItems += (int) deposited.divide(itemEmc).longValue();
@@ -272,7 +276,7 @@ private boolean acquireFromNetwork(IGrid grid, int slot, AEKey what, long amount
         var totalEmc = itemEmc.multiply(BigInteger.valueOf(amount));
         var acquiredItems = 0L;
 
-        while (totalEmc.compareTo(BigInteger.valueOf(Long.MAX_VALUE)) > 0) {
+        while (totalEmc.compareTo(BigInteger.ZERO) > 0) {
             var toWithdraw = clampedLong(totalEmc);
             var canWithdraw = emcStorage.extract(EMCKey.base(), toWithdraw, Actionable.SIMULATE, requestSource);