qb-core-qbcore-fivem/server/commands.lua

-- Handle Chat Input

AddEventHandler('chatMessage', function(_, _, message)
    if string.sub(message, 1, 1) == '/' then
        CancelEvent()
        return
    end
end)

-- Add Aces

CreateThread(function()
    local permissions = QBCore.Config.Server.Permissions
    for i = 1, #permissions do
        local permission = permissions[i]
        ExecuteCommand(('add_ace qbcore.%s %s allow'):format(permission, permission))
    end
end)

-- Register & Refresh Commands

function QBCore.Commands.Add(name, help, arguments, argsrequired, callback, permission, ...)
    local restricted = true
    if not permission then permission = 'user' end
    if permission == 'user' then restricted = false end

    RegisterCommand(name, function(source, args, rawCommand)
        if argsrequired and #args < #arguments then
            return TriggerClientEvent('chat:addMessage', source, {
                color = { 255, 0, 0 },
                multiline = true,
                args = { 'System', Lang:t('error.missing_args2') }
            })
        end
        callback(source, args, rawCommand)
    end, restricted)

    local extraPerms = ... and table.pack(...) or nil
    if extraPerms then
        extraPerms[extraPerms.n + 1] = permission
        extraPerms.n += 1
        permission = extraPerms
        for i = 1, permission.n do
            if not QBCore.Commands.IgnoreList[permission[i]] then
                ExecuteCommand(('add_ace qbcore.%s command.%s allow'):format(permission[i], name))
            end
        end
        permission.n = nil
    else
        permission = tostring(permission:lower())
        if not QBCore.Commands.IgnoreList[permission] then
            ExecuteCommand(('add_ace qbcore.%s command.%s allow'):format(permission, name))
        end
    end

    QBCore.Commands.List[name:lower()] = {
        name = name:lower(),
        permission = permission,
        help = help,
        arguments = arguments,
        argsrequired = argsrequired,
        callback = callback
    }
end

function QBCore.Commands.Refresh(source)
    local src = source
    local Player = QBCore.Functions.GetPlayer(src)
    local suggestions = {}
    if Player then
        for command, info in pairs(QBCore.Commands.List) do
            local hasPerm = IsPlayerAceAllowed(tostring(src), 'command.' .. command)
            if hasPerm then
                suggestions[#suggestions + 1] = {
                    name = '/' .. command,
                    help = info.help,
                    params = info.arguments
                }
            else
                TriggerClientEvent('chat:removeSuggestion', src, '/' .. command)
            end
        end
        TriggerClientEvent('chat:addSuggestions', src, suggestions)
    end
end