pull_routes

#!/usr/bin/ruby -w

require 'net/http'
require 'json'
require 'pp'

GOOGLE_MAPS_URL = "https://maps.googleapis.com/maps/api/directions/json"
GOOGLE_MAPS_KEY = "key=AIzaSyCnNSIiNWSOTO1nHxD7f-MTczEvXeBgAJo"

def build_query( origin, destination)
  URI("#{GOOGLE_MAPS_URL}?origin=#{origin}&destination=#{destination}&alternatives=true&#{GOOGLE_MAPS_KEY}")
end

def printHelpAndExit( plaint="Usage:=")

  STDERR.puts "

#{plaint}

#{__FILE__} --help
   Output this help text

#{__FILE_} origin destination

  or 
Run as a cgi script, expecting parameters origin and destination

Outputs JSON result to stdout.

"
  exit(1)
end

if ARGV.empty?
  origin="-43.590887,172.58077"
  destination="875%20cashmere%20road,christchurch"
elsif ARGV.size == 2
  origin,destination = *ARGV
else
  printHelpAndExit( "Incorrect number of arguments #{ARGV.inspect}")
end


query = build_query(origin,destination)

puts Net::HTTP.get(query)