#!/usr/bin/env ruby

# Generates bcrypt password
# USAGE
#
#     $ ./genpass.sh
#     Password:
#
# or (also sets password for user in .credentials.json)
#
#     $ ./genpass.sh johndoe
#     Password:
#
# OPTIONS
#        --verbose, -v
#               Print hash to console.
#

require 'io/console'
require 'bcrypt'
require 'json'

input = [(print 'Password: '), STDIN.noecho(&:gets).chomp][1]
hash = BCrypt::Password.create(input)

is_verbose = ARGV.any? { |v| v == '--verbose' || v == '-v' }
if is_verbose
  puts
  puts hash
end

if ARGV.length > 0
  credentialsPath = '.credentials.json'
  username = ARGV[0]
  file = File.read(credentialsPath)
  data = JSON.parse(file)
  data[username] = hash
  File.write(credentialsPath, data.to_json)
end