require "digest"
require "cgi"
require "uri"
require "net/http"

@inter = "c37f2682-f127-4a6c-8539-72c92ffb7478"
# url_initiate_transaction = "https://www.paynow.co.zw/interface/initiatetransaction/"

def build
  body = {
    "id": "10048",
    "reference": "TEST REF",
    "amount": "50.99",
    "additionalinfo": "A test ticket transaction",
    "returnurl": "http://www.google.com/",
    "resulturl": "http://www.google.com/",
    "authemail": "fulamos@gmail.com",
    "status": "Message",
  }

  joined = body.values.join
  add_key = joined += @inter
  body["hash"] = hash(add_key)
  body = URI.encode_www_form(body)
  puts CGI.escape(body)
end

def hash(encrypt)
  Digest::SHA2.new(512).hexdigest(encrypt).upcase
end

# def something
#   build = "http://www.example.com/something?param1=value1&param2=value2&param3=value3"
#   rebuild(build)
# end

# def rebuild(parm)
#   joined = CGI.parse(parm)
#   add_key = joined.values.join.to_s
#   reb = add_key += @inter
#   hash(reb)
# end

# def init(payment)
#   if payment.total <= 0
#     raise TypeError, "Transaction total cannot be less than 1"
#   end
#   data = build(payment)

#   response = HTTParty.post(@url_initiate_mobile_transaction, data)
#   response_object = rebuild_response(CGI::parse(response))
# end

# build = "id=1201&reference=TEST+REF&amount=99.99&additionalinfo=A+test+ticket+transaction&returnurl=http%3A%2F%2Fwww.google.com%2Fsearch%3Fq%3Dreturnurl&resulturl=http%3A%2F%2Fwww.google.com%2Fsearch%3Fq%3Dresulturl&status=Message&hash=2A033FC38798D913D42ECB786B9B19645ADEDBDE788862032F1BD82CF3B92DEF84F316385D5B40DBB35F1A4FD7D5BFE73835174136463CDD48C9366B0749C689"

# items = URI.decode_www_form(build).to_h

# def verify(item)
#   out = ""
#   for key, value in item
#     if key.to_s == "hash"
#       next
#     end
#     out += value.to_s
#   end
#   out += @inter.downcase
#   Digest::SHA2.new(512).hexdigest(out).upcase
# end

# verify(items)
build

# def qs_to_hash(querystring)
#   keyvals = querystring.split("&").inject({}) do |result, q|
#     k, v = q.split("=")
#     if !v.nil?
#       result.merge({ k => v })
#     elsif !result.key?(k)
#       result.merge({ k => true })
#     else
#       result
#     end
#   end
#   keyvals
# end