require 'json'
require 'open-uri'
require 'helix_web_services_client/open_model'

class HelixWebServicesClient
  # Execute a Perforce command.
  #
  # First argument should always be the command, followed by command line
  # arguments.
  #
  # Expect to always have an array of hashes as output.
  #
  # Not all commands are allowed, since the command will be executed on the
  # web server. In general, if your command requires a client workspace, it
  # will likely fail, or be blocked.
  #
  # @return [OpenModel] wraps the output in an OpenModel instance
  def command(cmd, *args)
    params = arg_params(args)
    arr = execute_method_no_body(:get, hve_path("commands/#{URI.encode(cmd)}"), params)
    arr.map { |a| OpenModel.new(a) } if arr.is_a?(Array)
  end

  # Generic run command with and input body.
  #
  # The first argument is the general command, followed by the input data,
  # then followed by additional command line arguments.
  #
  # Expect the output to always be an array of hashes.
  #
  # Not all commands are allowed, since the command will be executed on the
  # web server. In general, if your command requires a client workspace, it
  # will likely fail, or be blocked.
  def command_with_input(cmd, input, *args)
    params = arg_params(args)
    params[:cmd] = cmd
    path = hve_path("commands/#{URI.encode(cmd)}")
    arr = execute_method_with_body(:post, path, params, input)
    arr.map { |a| OpenModel.new(a) } if arr.nil? == false and arr.is_a?(Array)
  end

  # Creates a hash and creates keys 'arg1', 'arg2', etc that points to
  # the values in the arg_values array. This is basically only used by
  # the run methods
  def arg_params(arg_values)
    params = {}
    arg_values.each_index { |ii| params["arg#{ii + 1}"] = arg_values[ii] }
    params
  end
end