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December 1, 2016 22:39
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require 'pry' | |
puts "Please enter a 16 digit credit card number for validation." | |
this = gets.chomp | |
card_number = this.reverse | |
# | |
unless card_number.length. == 16 | |
puts "Requires 16 digits" | |
load 'credit_check.rb' | |
end | |
card_array = card_number.split("") | |
# puts card_array.to_s | |
q = (card_number[0]) | |
j = (card_number[2]) | |
k = (card_number[4]) | |
l = (card_number[6]) | |
m = (card_number[8]) | |
n = (card_number[10]) | |
o = (card_number[12]) | |
p = (card_number[14]) | |
new_card_array = [q.to_i, j.to_i, k.to_i, l.to_i, m.to_i, n.to_i, o.to_i, p.to_i] | |
a = (card_number[1].to_i)*2 | |
b = (card_number[3].to_i)*2 | |
c = (card_number[5].to_i)*2 | |
d = (card_number[7].to_i)*2 | |
e = (card_number[9].to_i)*2 | |
f = (card_number[11].to_i)*2 | |
g = (card_number[13].to_i)*2 | |
h = (card_number[15].to_i)*2 | |
# puts "------------------------" | |
if a >= 10 | |
aa = a.to_s[0] | |
ab = a.to_s[1] | |
ac = aa.to_i | |
ad = ab.to_i | |
ae = (ac + ad) | |
new_card_array.insert(1, ae.to_i) | |
else | |
new_card_array.insert(1, a.to_i) | |
end | |
if b >= 10 | |
ba = b.to_s[0] | |
bb = b.to_s[1] | |
bc = ba.to_i | |
bd = bb.to_i | |
be = (bc + bd) | |
new_card_array.insert(3, be.to_i) | |
else | |
new_card_array.insert(3, b.to_i) | |
end | |
if c >= 10 | |
ca = c.to_s[0] | |
cb = c.to_s[1] | |
cc = ca.to_i | |
cd = cb.to_i | |
ce = (cc + cd) | |
new_card_array.insert(5, ce.to_i) | |
else | |
new_card_array.insert(5, c.to_i) | |
end | |
if d >= 10 | |
da = d.to_s[0] | |
db = d.to_s[1] | |
dc = da.to_i | |
dd = db.to_i | |
de = (dc + dd) | |
new_card_array.insert(7, de.to_i) | |
else | |
new_card_array.insert(7, d.to_i) | |
end | |
if e >= 10 | |
ea = e.to_s[0] | |
eb = e.to_s[1] | |
ec = ea.to_i | |
ed = eb.to_i | |
ee = (ec + ed.to_i) | |
new_card_array.insert(9, ee.to_i) | |
else | |
new_card_array.insert(9, e.to_i) | |
end | |
if f >= 10 | |
fa = f.to_s[0] | |
fb = f.to_s[1] | |
fc = fa.to_i | |
fd = fb.to_i | |
fe = (fc + fd) | |
new_card_array.insert(11, fe.to_i) | |
else | |
new_card_array.insert(11, f.to_i) | |
end | |
if g >= 10 | |
ga = g.to_s[0] | |
gb = g.to_s[1] | |
gc = ga.to_i | |
gd = gb.to_i | |
ge = (gc + gd) | |
new_card_array.insert(13, ge.to_i) | |
else | |
new_card_array.insert(13, g.to_i) | |
end | |
if h >= 10 | |
ha = h.to_s[0] | |
hb = h.to_s[1] | |
hc = ha.to_i | |
hd = hb.to_i | |
he = (hc + hd) | |
new_card_array.insert(15, he.to_i) | |
else | |
new_card_array.insert(15, h.to_i) | |
end | |
# puts "-------------" | |
# puts new_card_array.to_s | |
total = new_card_array.reduce(0) {|sum, i| sum + i } | |
# puts total | |
if total % 10 == 0 | |
puts "This number is Valid!" | |
valid = true | |
else | |
puts "This number is Invalid!" | |
valid = false | |
end | |
puts "Do you have another number? (y/n)" | |
user_input = gets.chomp | |
if user_input == "n" | |
abort | |
elsif user_input == "y" | |
load 'credit_check.rb' | |
elsif user_input == "Y" | |
load 'credit_check.rb' | |
elsif user_input == "N" | |
abort | |
else | |
puts "You did not enter (y/n) program will now close." | |
abort | |
end |
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