83 lines
2.0 KiB
Lua
83 lines
2.0 KiB
Lua
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local events = {}
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local cbEvent = ('__ox_cb_%s')
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RegisterNetEvent(cbEvent:format(cache.resource), function(key, ...)
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local cb = events[key]
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return cb and cb(...)
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end)
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---@param _ any
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---@param event string
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---@param playerId number
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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 triggerClientCallback(_, event, playerId, cb, ...)
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local key
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repeat
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key = ('%s:%s:%s'):format(event, math.random(0, 100000), playerId)
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until not events[key]
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TriggerClientEvent(cbEvent:format(event), playerId, 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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events[key] = function(response, ...)
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response = { response, ... }
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events[key] = nil
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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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return table.unpack(Citizen.Await(promise))
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end
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end
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---@overload fun(event: string, playerId: number, cb: function, ...)
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lib.callback = setmetatable({}, {
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__call = triggerClientCallback
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})
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---@param event string
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---@param playerId number
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--- Sends an event to a client and halts the current thread until a response is returned.
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function lib.callback.await(event, playerId, ...)
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return triggerClientCallback(nil, event, playerId, 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 , 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 client requests.
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function lib.callback.register(name, cb)
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RegisterNetEvent(cbEvent:format(name), function(resource, key, ...)
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TriggerClientEvent(cbEvent:format(resource), source, key, callbackResponse(pcall(cb, source, ...)))
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end)
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end
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return lib.callback
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