feat(client/functions): client side hasitem check

client/functions.lua

@@ -11,12 +11,35 @@ function QBCore.Functions.GetCoords(entity)
     return vector4(GetEntityCoords(entity), GetEntityHeading(entity))
 end
 
-function QBCore.Functions.HasItem(item)
-    local p = promise.new()
-    QBCore.Functions.TriggerCallback('QBCore:HasItem', function(result)
-        p:resolve(result)
-    end, item)
-    return Citizen.Await(p)
+function QBCore.Functions.HasItem(items, amount)
+    local isTable = type(items) == 'table'
+	local isArray = isTable and table.type(items) == 'array' or false
+	local totalItems = #items
+    local count = 0
+    local kvIndex = 2
+	if isTable and not isArray then
+        totalItems = 0
+        for _ in pairs(items) do totalItems += 1 end
+        kvIndex = 1
+    end
+    for _, itemData in pairs(QBCore.PlayerData.items) do
+        if isTable then
+            for k, v in pairs(items) do
+                local itemKV = {k, v}
+                if itemData and itemData.name == itemKV[kvIndex] and ((not amount and not isArray and itemData.amount >= v) or (isArray and amount and itemData.amount >= amount) or (not amount and isArray)) then
+                    count += 1
+                end
+            end
+            if count == totalItems then
+                return true
+            end
+        else -- Single item as string
+            if itemData and itemData.name == items and (not amount or (amount and itemData.amount >= amount)) then
+                return true
+            end
+        end
+    end
+    return false
 end
 
 -- Utility