feat: use promises in callbacks + cleanup

client/events.lua

@@ -208,15 +208,22 @@ end)
 
 -- Client Callback
 RegisterNetEvent('QBCore:Client:TriggerClientCallback', function(name, ...)
-    QBCore.Functions.TriggerClientCallback(name, function(...)
+    if not QBCore.ClientCallbacks[name] then return end
+
+    QBCore.ClientCallbacks[name](function(...)
         TriggerServerEvent('QBCore:Server:TriggerClientCallback', name, ...)
     end, ...)
 end)
 
 -- Server Callback
 RegisterNetEvent('QBCore:Client:TriggerCallback', function(name, ...)
     if QBCore.ServerCallbacks[name] then
-        QBCore.ServerCallbacks[name](...)
+        QBCore.ServerCallbacks[name].promise:resolve(...)
+
+        if QBCore.ServerCallbacks[name].callback then
+            QBCore.ServerCallbacks[name].callback(...)
+        end
+
         QBCore.ServerCallbacks[name] = nil
     end
 end)

client/functions.lua

@@ -6,14 +6,26 @@ function QBCore.Functions.CreateClientCallback(name, cb)
     QBCore.ClientCallbacks[name] = cb
 end
 
-function QBCore.Functions.TriggerClientCallback(name, cb, ...)
-    if not QBCore.ClientCallbacks[name] then return end
-    QBCore.ClientCallbacks[name](cb, ...)
-end
+function QBCore.Functions.TriggerCallback(name, ...)
+    local cb = nil
+    local args = { ... }
+
+    if QBCore.Shared.IsFunction(args[1]) then
+        cb = args[1]
+        table.remove(args, 1)
+    end
 
-function QBCore.Functions.TriggerCallback(name, cb, ...)
-    QBCore.ServerCallbacks[name] = cb
-    TriggerServerEvent('QBCore:Server:TriggerCallback', name, ...)
+    QBCore.ServerCallbacks[name] = {
+        callback = cb,
+        promise = promise.new()
+    }
+
+    TriggerServerEvent('QBCore:Server:TriggerCallback', name, table.unpack(args))
+
+    if cb == nil then
+        Citizen.Await(QBCore.ServerCallbacks[name].promise)
+        return QBCore.ServerCallbacks[name].promise.value
+    end
 end
 
 function QBCore.Debug(resource, obj, depth)

server/events.lua

@@ -32,7 +32,7 @@ local databaseConnected, bansTableExists = readyFunction == nil, readyFunction =
 if readyFunction ~= nil then
     MySQL.ready(function()
         databaseConnected = true
-    
+
         local DatabaseInfo = QBCore.Functions.GetDatabaseInfo()
         if not DatabaseInfo or not DatabaseInfo.exists then return end
 
@@ -125,15 +125,23 @@ end)
 -- Client Callback
 RegisterNetEvent('QBCore:Server:TriggerClientCallback', function(name, ...)
     if QBCore.ClientCallbacks[name] then
-        QBCore.ClientCallbacks[name](...)
+        QBCore.ClientCallbacks[name].promise:resolve(...)
+
+        if QBCore.ClientCallbacks[name].callback then
+            QBCore.ClientCallbacks[name].callback(...)
+        end
+
         QBCore.ClientCallbacks[name] = nil
     end
 end)
 
 -- Server Callback
 RegisterNetEvent('QBCore:Server:TriggerCallback', function(name, ...)
+    if not QBCore.ServerCallbacks[name] then return end
+
     local src = source
-    QBCore.Functions.TriggerCallback(name, src, function(...)
+
+    QBCore.ServerCallbacks[name](src, function(...)
         TriggerClientEvent('QBCore:Client:TriggerCallback', src, name, ...)
     end, ...)
 end)

server/functions.lua

@@ -434,9 +434,26 @@ end
 ---@param source any
 ---@param cb function
 ---@param ... any
-function QBCore.Functions.TriggerClientCallback(name, source, cb, ...)
-    QBCore.ClientCallbacks[name] = cb
-    TriggerClientEvent('QBCore:Client:TriggerClientCallback', source, name, ...)
+function QBCore.Functions.TriggerClientCallback(name, source, ...)
+    local cb = nil
+    local args = { ... }
+
+    if QBCore.Shared.IsFunction(args[1]) then
+        cb = args[1]
+        table.remove(args, 1)
+    end
+
+    QBCore.ClientCallbacks[name] = {
+        callback = cb,
+        promise = promise.new()
+    }
+
+    TriggerClientEvent('QBCore:Client:TriggerClientCallback', source, name, table.unpack(args))
+
+    if cb == nil then
+        Citizen.Await(QBCore.ClientCallbacks[name].promise)
+        return QBCore.ClientCallbacks[name].promise.value
+    end
 end
 
 ---Create Server Callback
@@ -446,16 +463,6 @@ function QBCore.Functions.CreateCallback(name, cb)
     QBCore.ServerCallbacks[name] = cb
 end
 
----Trigger Serv er Callback
----@param name string
----@param source any
----@param cb function
----@param ... any
-function QBCore.Functions.TriggerCallback(name, source, cb, ...)
-    if not QBCore.ServerCallbacks[name] then return end
-    QBCore.ServerCallbacks[name](source, cb, ...)
-end
-
 -- Items
 
 ---Create a usable item
@@ -475,7 +482,7 @@ function QBCore.Functions.CreateUseableItem(item, data)
     elseif type(data) == "function" then
         rawFunc = data
     end
-    
+
     if rawFunc then
         QBCore.UsableItems[item] = {
             func = rawFunc,

shared/main.lua

@@ -68,6 +68,14 @@ function QBShared.ChangeVehicleExtra(vehicle, extra, enable)
     end
 end
 
+function QBShared.IsFunction(value)
+    if type(value) == 'table' then
+        return value.__cfx_functionReference ~= nil and type(value.__cfx_functionReference) == "string"
+    end
+
+    return type(value) == 'function'
+end
+
 function QBShared.SetDefaultVehicleExtras(vehicle, config)
     -- Clear Extras
     for i = 1, 20 do