class BMC::SMS::Strategies::Sendinblue
  URL = "https://api.sendinblue.com/v3/transactionalSMS/sms"

  DeliveryError = Class.new(BMC::SMS::DeliveryError)

  attr_reader :api_key

  def initialize(api_key: ENV["SENDINBLUE_API_KEY"])
    @api_key = api_key
  end

  def call(data)
    response = HTTP.request(:post, URL, headers: request_headers, json: request_body(data))

    unless response.code.to_s.start_with?("2")
      raise DeliveryError, "Invalid response: #{response.code} / #{response.body}"
    end

    true
  end

  private

  def request_headers
    {
      :content_type => "application/json",
      :api_key => api_key,
    }
  end

  def request_body(data)
    from = data[:from] || BMC::SMS.default_from

    {
      :type => "transactional",
      :sender => from,
      :recipient => data[:to],
      :content => data[:body],
    }
  end
end