options:
    koszt_vip: 100 # player's balance
    koszt_svip: 200
    koszt_uvip: 300
    koszt_mvip: 400
    koszt_surf: 500
    nazwa_grupy_vip: vip
    nazwa_grupy_svip: svip
    nazwa_grupy_mvip: mvip
    nazwa_grupy_uvip: uvip
    nazwa_grupy_surf: surf

command /rangi [<text>]:
    executable by: player
    permission: rangi.kup
    trigger:
        set {_rangi} to chest inventory with 3 rows named "&eKupno rang"
        set slot (integers between 0 and 8, integers between 18 and 26) of {_rangi} to black stained glass pane named "&7"
        set slot 9 of {_rangi} to leather helmet named "&6VIP" with lore "&aKoszt: {@koszt_vip} $"
        set slot 11 of {_rangi} to iron helmet named "&eSVIP" with lore "&aKoszt: {@koszt_svip} $"
        set slot 13 of {_rangi} to gold helmet named "&bUVIP" with lore "&aKoszt: {@koszt_uvip} $"
        set slot 15 of {_rangi} to diamond helmet named "&5MVIP" with lore "&aKoszt: {@koszt_mvip} $"
        set slot 17 of {_rangi} to netherite helmet named "&aSURF" with lore "&aKoszt: {@koszt_surf} $"
        open {_rangi} to player

on inventory click:
    if event-inventory is not player's inventory:
        if name of event-inventory = "&eKupno rang":
            cancel event
            if clicked slot is 9:
                if player's balance >= {@koszt_vip}:
                    remove {@koszt_vip} from player's balance
                    execute console command "lp user %player% parent add {@nazwa_grupy_vip}"
                if player's balance >= {@koszt_svip}:
                    remove {@koszt_svip} from player's balance
                    execute console command "lp user %player% parent add {@nazwa_grupy_svip}"
                if player's balance >= {@koszt_uvip}:
                    remove {@koszt_uvip} from player's balance
                    execute console command "lp user %player% parent add {@nazwa_grupy_mvip}"
                if player's balance >= {@koszt_mvip}:
                    remove {@koszt_mvip} from player's balance/
                    execute console command "lp user %player% parent add {@nazwa_grupy_uvip}"
                if player's balance >= {@koszt_surf}:
                    remove {@koszt_surf} from player's balance
                    execute console command "lp user %player% parent add {@nazwa_grupy_surf}"