forked from Simnation/Main
145 lines
4.1 KiB
Lua
145 lines
4.1 KiB
Lua
--[[
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https://github.com/overextended/ox_lib
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This file is licensed under LGPL-3.0 or higher <https://www.gnu.org/licenses/lgpl-3.0.en.html>
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Copyright © 2025 Linden <https://github.com/thelindat>
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]]
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local pendingCallbacks = {}
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local timers = {}
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local cbEvent = '__ox_cb_%s'
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local callbackTimeout = GetConvarInt('ox:callbackTimeout', 300000)
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RegisterNetEvent(cbEvent:format(cache.resource), function(key, ...)
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if source == '' then return end
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local cb = pendingCallbacks[key]
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if not cb then return end
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pendingCallbacks[key] = nil
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cb(...)
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end)
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---@param event string
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---@param delay? number | false prevent the event from being called for the given time
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local function eventTimer(event, delay)
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if delay and type(delay) == 'number' and delay > 0 then
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local time = GetGameTimer()
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if (timers[event] or 0) > time then
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return false
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end
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timers[event] = time + delay
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end
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return true
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end
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---@param _ any
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---@param event string
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---@param delay number | false | nil
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---@param cb function | false
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---@param ... any
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---@return ...
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local function triggerServerCallback(_, event, delay, cb, ...)
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if not eventTimer(event, delay) then return end
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local key
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repeat
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key = ('%s:%s'):format(event, math.random(0, 100000))
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until not pendingCallbacks[key]
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TriggerServerEvent('ox_lib:validateCallback', event, cache.resource, key)
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TriggerServerEvent(cbEvent:format(event), cache.resource, key, ...)
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---@type promise | false
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local promise = not cb and promise.new()
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pendingCallbacks[key] = function(response, ...)
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if response == 'cb_invalid' then
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response = ("callback '%s' does not exist"):format(event)
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return promise and promise:reject(response) or error(response)
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end
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response = { response, ... }
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if promise then
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return promise:resolve(response)
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end
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if cb then
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cb(table.unpack(response))
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end
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end
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if promise then
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SetTimeout(callbackTimeout, function() promise:reject(("callback event '%s' timed out"):format(key)) end)
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return table.unpack(Citizen.Await(promise))
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end
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end
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---@overload fun(event: string, delay: number | false, cb: function, ...)
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lib.callback = setmetatable({}, {
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__call = function(_, event, delay, cb, ...)
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if not cb then
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warn(("callback event '%s' does not have a function to callback to and will instead await\nuse lib.callback.await or a regular event to remove this warning")
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:format(event))
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else
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local cbType = type(cb)
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if cbType == 'table' and getmetatable(cb)?.__call then
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cbType = 'function'
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end
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assert(cbType == 'function', ("expected argument 3 to have type 'function' (received %s)"):format(cbType))
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end
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return triggerServerCallback(_, event, delay, cb, ...)
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end
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})
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---@param event string
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---@param delay? number | false prevent the event from being called for the given time.
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---Sends an event to the server and halts the current thread until a response is returned.
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---@diagnostic disable-next-line: duplicate-set-field
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function lib.callback.await(event, delay, ...)
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return triggerServerCallback(nil, event, delay, false, ...)
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end
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local function callbackResponse(success, result, ...)
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if not success then
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if result then
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return print(('^1SCRIPT ERROR: %s^0\n%s'):format(result,
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Citizen.InvokeNative(`FORMAT_STACK_TRACE` & 0xFFFFFFFF, nil, 0, Citizen.ResultAsString()) or ''))
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end
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return false
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end
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return result, ...
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end
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local pcall = pcall
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---@param name string
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---@param cb function
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---Registers an event handler and callback function to respond to server requests.
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---@diagnostic disable-next-line: duplicate-set-field
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function lib.callback.register(name, cb)
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event = cbEvent:format(name)
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lib.setValidCallback(name, true)
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RegisterNetEvent(event, function(resource, key, ...)
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TriggerServerEvent(cbEvent:format(resource), key, callbackResponse(pcall(cb, ...)))
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end)
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end
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return lib.callback
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