From cb5122d36c27988b6c1cd882cdae7dd100ca33b3 Mon Sep 17 00:00:00 2001
From: MayaTheShy <MayaTheShy@gmail.com>
Date: Sun, 15 Mar 2026 15:10:05 -0400
Subject: [PATCH] Add inventory management functions to scan and group items by
 devices

---
 inventoryManager.lua | 75 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 inventoryManager.lua

diff --git a/inventoryManager.lua b/inventoryManager.lua
new file mode 100644
index 0000000..a582eca
--- /dev/null
+++ b/inventoryManager.lua
@@ -0,0 +1,75 @@
+-- Inventory Manager: Scan & Group by shared items
+
+-- Scan all peripherals and categorize them
+local function getInventoryDevices()
+    local devices = {}
+    for _, name in ipairs(peripheral.getNames()) do
+        local pType = peripheral.getType(name)
+        if pType == "minecraft:chest" or pType == "minecraft:dropper" then
+            table.insert(devices, {
+                name = name,
+                type = pType,
+            })
+        end
+    end
+    return devices
+end
+
+-- Scan the contents of a single inventory peripheral
+local function scanInventory(deviceName)
+    local items = {}
+    local inventory = peripheral.wrap(deviceName)
+    if not inventory then return items end
+
+    local contents = inventory.list()
+    for slot, item in pairs(contents) do
+        if items[item.name] then
+            items[item.name] = items[item.name] + item.count
+        else
+            items[item.name] = item.count
+        end
+    end
+    return items
+end
+
+-- Build a map of item -> list of devices that contain it
+local function buildItemMap(devices)
+    local itemMap = {}
+
+    for _, device in ipairs(devices) do
+        device.items = scanInventory(device.name)
+
+        for itemName, count in pairs(device.items) do
+            if not itemMap[itemName] then
+                itemMap[itemName] = {}
+            end
+            table.insert(itemMap[itemName], {
+                name = device.name,
+                type = device.type,
+                count = count,
+            })
+        end
+    end
+
+    return itemMap
+end
+
+-- Display grouped results
+local function displayGroups(itemMap)
+    print("=== Inventory Groups ===")
+    print("")
+
+    for itemName, devices in pairs(itemMap) do
+        local chests = {}
+        local droppers = {}
+
+        for _, device in ipairs(devices) do
+            if device.type == "minecraft:chest" then
+                table.insert(chests, device)
+            else
+                table.insert(droppers, device)
+            end
+        end
+
+        -- Only show groups where at least one chest AND one dropper share the item
+        local isGroup = #_