module CryptoWallet

# File lib/crypto_wallet.rb, line 27
def self.method_missing(m, *args, &block)      

        method_name = m.to_s

        params = get_params(args.first)
        self.api_call([method_name, params])

end

# File lib/crypto_wallet.rb, line 14
def self.set_options(args = {})
        # initialize BlockIo
        @api_key = args[:api_key]
        @pin = args[:pin]
        # @encryptionKey = Helper.pinToAesKey(@pin) if !@pin.nil?

        @conn_pool = ConnectionPool.new(size: 5, timeout: 300) { HTTPClient.new }

        @version = args[:version] || 2 # default version is 2

        self.api_call(['get_balances',""])
end

# File lib/crypto_wallet.rb, line 38
def self.api_call(endpoint)

        body = nil

        @conn_pool.with do |hc|
          # prevent initiation of HTTPClients every time we make this call, use a connection_pool

          # puts endpoint
          hc.ssl_config.ssl_version = :TLSv1
          response = hc.get("#{@base_url.gsub('API_CALL',endpoint[0]).gsub('VERSION', 'v'+@version.to_s) + @api_key}", endpoint[1])
          
          begin
            body = JSON.parse(response.body)
            raise Exception.new(body['result']) if !body['status'].eql?('1')
          rescue
            raise Exception.new('Unknown error occurred. Please report this.')
          end
        end

        body
end

# File lib/crypto_wallet.rb, line 62
def self.get_params(args = {})
        # construct the parameter string
        params = ""
        args = {} if args.nil?

        args.each do |k,v|
          params += '&' if params.length > 0
          params += "#{k.to_s}=#{v.to_s}"
        end

        return params
end