require_relative 'service'
require 'singleton'

module Zzlink
  # Client of zzEnv service.
  class Env < Service
    include Singleton

    def name
      'zzEnv'
    end

    def version
      'v1.0'
    end

    # Get a environment variable's value.
    # @param name [String] name of the environment variable.
    # @return [String] value of the variable.
    def get_env(name)
      resp = get("/env/#{name}")
      resp = JSON.parse(resp)
      resp[name]
    end

    # Get a zzLink ticket.
    # @param ttl_in_sec [Integer] TTL (in seconds) of the new ticket.
    # @return [String] a ticket which is URL-safe encoded.
    def new_ticket(ttl_in_sec = 60)
      resp = get('/ticket', ttl: ttl_in_sec)
      resp = JSON.parse(resp)
      resp['ticket']
    end

    # Check a zzLink ticket.
    # @param ticket [String] the string representation of the ticket.
    # @return [Boolean] whether the ticket is valid.
    def check_ticket(ticket)
      resp = put('/ticket', ticket: ticket);
      resp = JSON.parse(resp)
      resp['status']
    end
  end
end