class Gilgamesh

# File lib/gilgamesh.rb, line 9
def initialize(api_key, default_icon:, api_url: "http://gcm-http.googleapis.com/gcm/send")
  @api_key = api_key
  @api_url = api_url
  @default_icon = default_icon
end

# File lib/gilgamesh.rb, line 15
def conn
  @conn ||= Faraday.new(url: api_url) do |faraday|
    faraday.adapter Faraday.default_adapter
  end
end

# File lib/gilgamesh.rb, line 21
def push(registration_token, title:, body:, click_action: nil, icon: nil)
  body = {
    to: registration_token,
    notification: {
      title: title,
      body: body,
      icon: icon || default_icon
    }
  }
  body[:notification].merge!(click_action: click_action) unless click_action.nil?

  @response = conn.post do |req|
    req.headers['Authorization'] = "key=#{api_key}"
    req.headers['Content-Type'] = 'application/json'
    req.body = body.to_json
  end

  case response.status
  when 200
    "Success"
  when 400
    "INVALID_REGISTRATION: registration_token is not valid"
  when 401
    "Unauthorized: API key is not valid"
  end
end