class AlgoliaPlaces

# File lib/algolia_places.rb, line 19
def root
  File.expand_path '../..', __FILE__
end

# File lib/algolia_places.rb, line 37
def configuration(opts = {})
  self.app_id = opts.fetch :app_id
  self.api_key = opts.fetch :api_key
  self.rest_exception = opts.fetch :rest_exception, false
  self.logger = opts[:logger] if opts[:logger]
end

# File lib/algolia_places.rb, line 44
def coordinates(query)
  begin
    resp = retrieve_query(query)
    coordinates_response(resp)
  rescue RestClient::ExceptionWithResponse => err
    if self.rest_exception?
      raise err
    else
      self.logger.fatal("#{err}\n#{err.backtrace.inspect}")
      default_coords
    end
  end
end

# File lib/algolia_places.rb, line 58
def hits(query)
  begin
    resp = retrieve_query(query)
    hits_response(resp)
  rescue RestClient::ExceptionWithResponse => err
    if self.rest_exception?
      raise err
    else
      self.logger.fatal("#{err}\n#{err.backtrace.inspect}")
      []
    end
  end
end

# File lib/algolia_places.rb, line 105
def api_key
  @api_key||= ENV['ALGOLIA_API_KEY']
end

# File lib/algolia_places.rb, line 101
def app_id
  @app_id ||= ENV['ALGOLIA_APP_ID']
end

# File lib/algolia_places.rb, line 78
def coordinates_response(resp)
  results = JsonPath.new('$.hits[0]._geoloc').on resp.body
  geo_loc = results.first
  if geo_loc.nil?
    default_coords
  else
    [geo_loc['lat'], geo_loc['lng']]
  end
end

# File lib/algolia_places.rb, line 88
def default_coords
  [0,0]
end

# File lib/algolia_places.rb, line 74
def hits_response(resp)
  JsonPath.new('$.hits').on(resp.body).first
end

# File lib/algolia_places.rb, line 109
def logger
  @logger||= setup_logger
end

# File lib/algolia_places.rb, line 92
def retrieve_query(query)
  RestClient.post(URL,
                  { query: query }.to_json,
                  {
                    'X-Algolia-Application-Id' => self.app_id,
                    'X-Algolia-API-Key' => self.api_key,
                  })
end

# File lib/algolia_places.rb, line 115
def setup_logger
  log = Logger.new(STDOUT)
  log.level = Logger::INFO
  log
end