reko.rb

require 'json'

Disc = Struct.new(
  :plastic,
  :weight,
  :color,
  :quantity,
)
WIDTH = 16
REKO_MODEL_ID = '16569'

curl = %{
  curl --silent 'https://infinitediscs.com/Default.aspx/fnLoadPlasticInventory' \
    -H 'content-type: application/json; charset=UTF-8' \
    --data-binary '{"model_id":"#{REKO_MODEL_ID}","plastic_id":"","sort":"Weight Low-High"}' \
}.strip

response = %x[#{curl}]
response = JSON.parse(JSON.parse(response)['d'])

discs = response['inventory'].map do |item|
  Disc.new(
    item['E_PlasticName'],
    item['E_Weight'].to_i,
    item['E_Color'],
    item['E_Available'].to_i,
  )
end

discs = discs.sort do |disc, other|
  [
    -(disc.plastic <=> other.plastic),
    -(disc.weight <=> other.weight),
    -(disc.quantity <=> other.quantity),
    (disc.color <=> other.color),
  ].find do |key|
    key != 0
  end || 0
end

header = Disc.members.map do |column|
  column.to_s.upcase.center(WIDTH)
end.join('|')
puts header
puts '-' * header.size
discs.each do |disc|
  disc_row = disc.values.map do |value|
    value.to_s.center(WIDTH)
  end.join('|')
  puts disc_row
end