feat(callback): add AwaitClientCallback function

Author: Mirrrrrow

[core]/es_extended/client/modules/callback.lua

@@ -14,19 +14,12 @@ Callbacks.id = 0
 -- MARK: Internal Functions
 -- =============================================
 
-function Callbacks:Trigger(event, cb, invoker, ...)
 
-    self.requests[self.id] = {
-        await = type(cb) == "boolean",
-        cb = cb or promise:new()
+function Callbacks:Register(name, resource, cb)
+    self.storage[name] = {
+        resource = resource,
+        cb = cb
     }
-    local table = self.requests[self.id]
-
-    TriggerServerEvent("esx:triggerServerCallback", event, self.id, invoker, ...)
-
-    self.id += 1
-
-    return table.cb
 end
 
 function Callbacks:Execute(cb, id, ...)
@@ -39,6 +32,20 @@ function Callbacks:Execute(cb, id, ...)
     end
 end
 
+function Callbacks:Trigger(event, cb, invoker, ...)
+    self.requests[self.id] = {
+        await = type(cb) == "boolean",
+        cb = cb or promise:new()
+    }
+    local table = self.requests[self.id]
+
+    TriggerServerEvent("esx:triggerServerCallback", event, self.id, invoker, ...)
+
+    self.id += 1
+
+    return table.cb
+end
+
 function Callbacks:ServerRecieve(requestId, invoker, ...)
     if not self.requests[requestId] then
         return error(("Server Callback with requestId ^5%s^1 Was Called by ^5%s^1 but does not exist."):format(requestId, invoker))
@@ -49,21 +56,13 @@ function Callbacks:ServerRecieve(requestId, invoker, ...)
     self.requests[requestId] = nil
 
     if callback.await then
-        callback.cb:resolve({...})
+        callback.cb:resolve({ ... })
     else
         self:Execute(callback.cb, requestId, ...)
     end
 end
 
-function Callbacks:Register(name, resource, cb)
-    self.storage[name] = {
-        resource = resource,
-        cb = cb
-    }
-end
-
 function Callbacks:ClientRecieve(eventName, requestId, invoker, ...)
-
     if not self.storage[eventName] then
         return error(("Client Callback with requestId ^5%s^1 Was Called by ^5%s^1 but does not exist."):format(eventName, invoker))
     end
@@ -130,14 +129,14 @@ end
 -- MARK: Events
 -- =============================================
 
-ESX.SecureNetEvent("esx:triggerClientCallback", function(...)
-    Callbacks:ClientRecieve(...)
-end)
-
 ESX.SecureNetEvent("esx:serverCallback", function(...)
     Callbacks:ServerRecieve(...)
 end)
 
+ESX.SecureNetEvent("esx:triggerClientCallback", function(...)
+    Callbacks:ClientRecieve(...)
+end)
+
 AddEventHandler("onResourceStop", function(resource)
     for k, v in pairs(Callbacks.storage) do
         if v.resource == resource then

[core]/es_extended/server/modules/callback.lua

@@ -33,11 +33,17 @@ function Callbacks:Execute(cb, ...)
 end
 
 function Callbacks:Trigger(player, event, cb, invoker, ...)
-    self.requests[self.id] = cb
+    self.requests[self.id] = {
+        await = type(cb) == "boolean",
+        cb = cb or promise:new()
+    }
+    local table = self.requests[self.id]
 
     TriggerClientEvent("esx:triggerClientCallback", player, event, self.id, invoker, ...)
 
     self.id += 1
+
+    return table.cb
 end
 
 function Callbacks:ServerRecieve(player, event, requestId, invoker, ...)
@@ -64,8 +70,12 @@ function Callbacks:RecieveClient(requestId, invoker, ...)
 
     local callback = self.requests[self.currentId]
 
-    self:Execute(callback, ...)
     self.requests[requestId] = nil
+    if callback.await then
+        callback.cb:resolve({ ... })
+    else
+        self:Execute(callback.cb, ...)
+    end
 end
 
 -- =============================================
@@ -83,6 +93,28 @@ function ESX.TriggerClientCallback(player, eventName, callback, ...)
     Callbacks:Trigger(player, eventName, callback, invoker, ...)
 end
 
+---@param player number playerId
+---@param eventName string
+---@param ... any
+---@return any
+function ESX.AwaitClientCallback(player, eventName, ...)
+    local invokingResource = GetInvokingResource()
+    local invoker = (invokingResource and invokingResource ~= "Unknown") and invokingResource or "es_extended"
+
+    local p = Callbacks:Trigger(player, eventName, false, invoker, ...)
+    if not p then return end
+
+    SetTimeout(15000, function()
+        if p.state == "pending" then
+            p:reject("Server Callback Timed Out")
+        end
+    end)
+
+    Citizen.Await(p)
+
+    return table.unpack(p.value)
+end
+
 ---@param eventName string
 ---@param callback function
 ---@return nil