public class EliteAPI {

    /**
     * Check if player has a full set of
     * a custom armor set.
     *
     * @param player
     * @return
     */
    public boolean hasFullSet (Player player ) ;

    /**
     * Check if the item has the id of a
     * set piece.
     * @param item
     * @return
     */
    public boolean isArmorPiece (ItemStack item ) ;

    /**
     * Get the name of the set the armor piece
     * belongs to
     * @param item
     * @return
     */
    public String getSetName (ItemStack item ) ;

    /**
     * Check if the item has an effect
     * Mostly for weapons.
     * @param item
     * @param effect
     * @return
     */
    public boolean hasEffect (ItemStack item, String effect ) ;

    /**
     * Check if the set the player is wearing contains
     * the effect that you are looking for.
     * @param player
     * @param effect
     * @return
     */
    public boolean hasEffect (Player player, String effect ) ;

    /**
     * Get the 2nd argument given in the sets.yml
     * Damage:1.05 what will be returned is the number 1.05
     * @param player
     * @param effect
     * @return
     */
    public double getValue (Player player, String effect ) ;

    /**
     * Get the 2nd argument given in the set.yml
     * for a weapon
     * @param player
     * @param effect
     * @return
     */
    public double getValueWeapon (@NonNull Player player, @NonNull String effect ) ;

    /**
     * Get an armor upgrade item
     * @param set
     * @param percentage
     * @return
     */
    public ItemStack getUpgrade ( String set, int percentage ) ;

    /**
     * Get a crate item
     * @param crateName
     * @return
     */
    public ItemStack getCrate ( String crateName ) ;
}