command /gui:
    trigger:
        open chest with 1 rows named "&cFajne GUI" to player
        set slot 0 of player's current inventory to diamond of sharpness 1 named "&cEnchantowany Diament" with lore "O lool"
        
on inventory click:
    if inventory name of player's current inventory is "&cFajne GUI":
        cancel event
        if clicked slot is 0:
            execute console command "give %player% diamond 1"
            send "&cDostales Diament" to player
            close player's inventory
            stop