License Check

Firstly you will need to add the following to each dealership in the config.lua

licenseCheck = false, -- false = no license required to open dealership
license = 'driver', -- this is the license name required 

You will need to replace the following callback in config-sv.lua "jg-dealerships:server:showroom-pre-check"

QBCore

lib.callback.register("jg-dealerships:server:showroom-pre-check", function(src, dealershipId)
  local allowed = false

  -- QBCORE LICENSE CHECKS
  local Player = QBCore.Functions.GetPlayer(src)
  local licenseCheck = Config.DealershipLocations[dealershipId].licenseCheck
  local license = Player.PlayerData.metadata['licences'][Config.DealershipLocations[dealershipId].license]
  if licenseCheck then
    if not license then
      allowed = false

    elseif license  then
      allowed = true
    end
  else
    allowed = true
  end

  -- Write some server-sided code here. Again, update the "allowed" variable

  if not allowed then
    Framework.Server.Notify(src, "You require a ".. Config.DealershipLocations[dealershipId].license.. " license", "error")
    return false
  end

  return true
end)

ESX

lib.callback.register("jg-dealerships:server:showroom-pre-check", function(src, dealershipId)
  local allowed = false
  
  -- ESX LICENSE CHECKS
  local licenseCheck = Config.DealershipLocations[dealershipId].licenseCheck
  local license = MySQL.scalar.await('SELECT type FROM user_licenses WHERE type = ? AND owner = ?', {Config.DealershipLocations[dealershipId].license, Framework.Server.GetPlayerIdentifier(src)})
  if licenseCheck then
    if not license then
      allowed = false
    elseif license then
      allowed = true
    end
  else
    allowed = true
  end

  
  if not allowed then
    Framework.Server.Notify(src, "You are not allowed to access the showroom", "error")
    return false
  end

  return true
end)

Do you only want license check for individual dealerships? Then replace the config-sv callback with the following

QBCore

lib.callback.register("jg-dealerships:server:showroom-pre-check", function(src, dealershipId)
  local allowed = false

  -- QBCORE License Check
  -- dealershipId is the name of your dealership in the config.lua
  if dealershipId == "boat" then
    local Player = QBCore.Functions.GetPlayer(src)
    local license = Player.PlayerData.metadata['licences'][Config.DealershipLocations[dealershipId].license]
    if not license then
      allowed = false
    end
  end

  -- Write some server-sided code here. Again, update the "allowed" variable

  if not allowed then
    Framework.Server.Notify(src, "You require a ".. Config.DealershipLocations[dealershipId].license.. " license", "error")
    return false
  end

  return true
end)

ESX

lib.callback.register("jg-dealerships:server:showroom-pre-check", function(src, dealershipId)
  local allowed = true
  
  -- ESX License Check
  -- dealershipId is the name of your dealership in the config.lua
  if dealershipId == "boat" then
    local license = MySQL.scalar.await('SELECT type FROM user_licenses WHERE type = ? AND owner = ?', {Config.DealershipLocations[dealershipId].license, Framework.Server.GetPlayerIdentifier(src)})
    if not license then
      allowed = false
    end
  end
  
  if not allowed then
    Framework.Server.Notify(src, "You are not allowed to access the showroom", "error")
    return false
  end

  return true
end)