module Rtelldus

# File lib/rtelldus.rb, line 8
def self.authorize
  # Get API settings
  unless File.exists? @uconf['api_settings.yaml'].path
    # No configuration exists, let's request some credentials from the user
    # Fetch the public and private keys from command line
    puts "The first time you use the API you need to enter your Public and Private keys, they can be generated at:"
    puts "\thttp://api.telldus.com/keys/index"
    puts "\nPublic Key:"
    public_key = $stdin.gets.strip
    @uconf["api_settings.yaml"]["consumer_key"] = public_key
    puts "\nPrivate Key:"
    private_key = $stdin.gets.strip
    @uconf["api_settings.yaml"]["consumer_secret"] = private_key
    ## Persistent settings
    @uconf["api_settings.yaml"]["api_host"] = "http://api.telldus.com"
    @uconf["api_settings.yaml"]["request_token_path"] = "/oauth/requestToken"
    @uconf["api_settings.yaml"]["access_token_path"] = "/oauth/accessToken"
    @uconf["api_settings.yaml"]["authorize_path"] = "/oauth/authorize"
    # Save for later use
    @uconf["api_settings.yaml"].save
  end

  # Setup OAuth
  consumer_options = { :site => @uconf["api_settings.yaml"]['api_host'],
                       :authorize_path => @uconf["api_settings.yaml"]['authorize_path'],
                       :request_token_path => @uconf["api_settings.yaml"]['request_token_path'],
                       :access_token_path => @uconf["api_settings.yaml"]['access_token_path'] }
  consumer = OAuth::Consumer.new(@uconf["api_settings.yaml"]['consumer_key'], @uconf["api_settings.yaml"]['consumer_secret'], consumer_options)

  if File.exists? @uconf["api_token.yaml"].path
    @access_token = OAuth::AccessToken.new(consumer, @uconf["api_token.yaml"]["access_token"], @uconf["api_token.yaml"]["access_secret"])
  else
    # No configuration exists, let's request some access tokens
    # Fetch a new access token and secret from the command line
    request_token = consumer.get_request_token
    puts "Copy and paste the following URL in your browser:"
    puts "\t#{request_token.authorize_url}"
    puts "When you sign in and accept, press enter.."
    verifier = $stdin.gets.strip
    access_token = request_token.get_access_token(:oauth_verifier => verifier)
    # Save the token and secret so the script can be used automatically in the future
    @uconf["api_token.yaml"]["access_token"] = access_token.token
    @uconf["api_token.yaml"]["access_secret"] = access_token.secret
    @uconf["api_token.yaml"].save
    @access_token = OAuth::AccessToken.new(consumer, @uconf["api_token.yaml"]["access_token"], @uconf["api_token.yaml"]["access_secret"])
  end
end

# File lib/rtelldus.rb, line 57
def self.clients_list
  authorize unless @access_token
  json_txt = @access_token.get("/json/clients/list", 'x-li-format' => 'json').body
  clients = JSON.parse(json_txt)
end

# File lib/rtelldus.rb, line 95
def self.device_bell device_id
  authorize unless @access_token
  json_txt = @access_token.post("/json/device/bell", {"id" => device_id}, 'x-li-format' => 'json').body
  status = JSON.parse(json_txt)
end

# File lib/rtelldus.rb, line 88
def self.device_dim device_id, level
  raise "Invalid dimlevel, this value should be 0-255" if level < 0 or level > 255
  authorize unless @access_token
  json_txt = @access_token.post("/json/device/dim", {"id" => device_id, "level" => level}, 'x-li-format' => 'json').body
  status = JSON.parse(json_txt)
end

# File lib/rtelldus.rb, line 70
def self.device_info device_id
  authorize unless @access_token
  json_txt = @access_token.post("/json/device/info", {"id" => device_id}, 'x-li-format' => 'json').body
  status = JSON.parse(json_txt)
end

# File lib/rtelldus.rb, line 82
def self.device_turn_off device_id
  authorize unless @access_token
  json_txt = @access_token.post("/json/device/turnOff", {"id" => device_id}, 'x-li-format' => 'json').body
  status = JSON.parse(json_txt)
end

# File lib/rtelldus.rb, line 76
def self.device_turn_on device_id
  authorize unless @access_token
  json_txt = @access_token.post("/json/device/turnOn", {"id" => device_id}, 'x-li-format' => 'json').body
  status = JSON.parse(json_txt)
end

# File lib/rtelldus.rb, line 64
def self.devices_list
  authorize unless @access_token
  json_txt = @access_token.get("/json/devices/list", 'x-li-format' => 'json').body
  devices = JSON.parse(json_txt)
end

# File lib/rtelldus.rb, line 108
def self.sensor_info sensor_id
  authorize unless @access_token
  json_txt = @access_token.post("/json/sensor/info", {"id" => sensor_id}, 'x-li-format' => 'json').body
  status = JSON.parse(json_txt)
end

# File lib/rtelldus.rb, line 102
def self.sensors_list
  authorize unless @access_token
  json_txt = @access_token.get("/json/sensors/list", 'x-li-format' => 'json').body
  devices = JSON.parse(json_txt)
end