basic kit system for vanilla skript 2.4

kits.sk

command /kit [<text>]:
  permission: kits.kit
  trigger:
    if arg-1 isn't set:
      send "&6Kits: &e%all indices of {kitsystem.kits::*}%"
      stop
    
    set {_i::*} to all indices of {kitsystem.kits::*}
    if {_i::*} doesn't contain uncoloured arg-1:
      send "&cThat kit doesn't exist!"
      stop
    
    if unix timestamp of now < ({kitsystem.lastused::%uuid of player%::%arg-1%} ? 0) + {kitsystem.kits::%arg-1%::cooldown}:
      player doesn't have permission "kits.cooldownbypass.%arg-1%"
      set {_new-use-time} to "%(({kitsystem.lastused::%uuid of player%::%arg-1%} ? 0) + {kitsystem.kits::%arg-1%::cooldown}) - unix timestamp of now% seconds" parsed as timespan
      send "&fYou need to wait &c%{_new-use-time}% &fbefore using this kit again."
      stop
    
    set {kitsystem.lastused::%uuid of player%::%arg-1%} to unix timestamp of now
    
    loop integers from 0 to size of {kitsystem.kits::%arg-1%::*}-2:
      set {_cmeta} to {kitsystem.kits::%arg-1%::%loop-value%::1}
      set {_ctype} to {kitsystem.kits::%arg-1%::%loop-value%::2}

      {_ctype}.setItemMeta({_cmeta})
      give {_ctype} to player
    send "&6Gave you the &e%arg-1% &6kit."

command /setkit <text> [<integer = 0>]:
  description: Creates a kit with a name from your inventory
  usage: /createkit <name> [cooldown in seconds]
  permission: kits.createkit
  trigger:
    set {_c} to 0
    set {kitsystem.kits::%arg-1%::cooldown} to arg-2
    loop all items in player's inventory:
      set {_cmeta} to (random item out of loop-value).getItemMeta()
      set {_ctype} to (random item out of loop-value)

      set {kitsystem.kits::%arg-1%::%{_c}%::1} to {_cmeta}
      set {kitsystem.kits::%arg-1%::%{_c}%::2} to {_ctype}
      add 1 to {_c}
    send "&aKit &f%arg-1% &acreated."

command /deletekit <text>:
  description: Deletes the kit with the given name
  usage: /deletekit <name>
  aliases: removekit, delkit, remkit
  permission: kits.deletekit
  trigger:
    loop integers from 0 to size of {kitsystem.kits::%arg-1%::*}:
      delete {kitsystem.kits::%arg-1%::%loop-value%::*}
    delete {kitsystem.kits::%arg-1%::*}
    delete {kitsystem.kits::%arg-1%}
    send "&aIf kit &f%arg-1% &aexisted, it no longer does!"