WiFi Change Action

WiFiChange.lua

local prevSSID = 'NO_NET'
function ssidChangedCallback()
    local ssid = hs.wifi.currentNetwork()
    if ssid ~= nil then
        print(prevSSID .. " -> " .. ssid)

        if ssid ~= nil and ssid ~= prevSSID then
            prevSSID = ssid
            hs.notify.show('Wi-Fi changed to ' .. (ssid), '', '')

            if ssid == 'AAA' then
                hs.application.open('/Applications/ZZZ.app')
            elseif string.match(string.lower(ssid), 'BBB') then
                hs.osascript.applescript('quit app "ZZZ"')
            end
        end
    end
end

wifiWatcher = hs.wifi.watcher.new(ssidChangedCallback)
wifiWatcher:start()