Class: GoogleMapsJuice::Directions

Inherits:
Endpoint
  • Object
show all
Defined in:
lib/google_maps_juice/directions.rb

Defined Under Namespace

Classes: Response

Constant Summary collapse

ENDPOINT = 
'/directions'

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Endpoint

#initialize

Constructor Details

This class inherits a constructor from GoogleMapsJuice::Endpoint

Class Method Details

.find(params, api_key: GoogleMapsJuice.config.api_key) ⇒ Object 



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# File 'lib/google_maps_juice/directions.rb', line 9

def find(params, api_key: GoogleMapsJuice.config.api_key)
  client = GoogleMapsJuice::Client.new(api_key: api_key)
  new(client).find(params)
end

Instance Method Details

#find(params) ⇒ Object 



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# File 'lib/google_maps_juice/directions.rb', line 15

def find(params)
  validate_find_params(params)
  response_text = @client.get("#{ENDPOINT}/json", params)
  response = JSON.parse(response_text, object_class: Response)
  detect_errors(response)
end

#validate_find_params(params) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/google_maps_juice/directions.rb', line 22

def validate_find_params(params)
  raise ArgumentError, 'Hash argument expected' unless params.is_a?(Hash)

  supported_keys = %w[origin destination]
  validate_supported_params(params, supported_keys)

  required_keys = %w[origin destination]
  validate_any_required_params(params, required_keys)

  validate_geo_coordinate(params)
end

#validate_geo_coordinate(params) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/google_maps_juice/directions.rb', line 34

def validate_geo_coordinate(params)
  raise ArgumentError, 'String argument expected' unless params.values.all?(String)

  geocoords = params.values.map { |x| x.split(',') }.flatten
  geocoords.map! { |x| Float(x).round(7) }
  raise ArgumentError, 'Wrong geo-coordinates' if geocoords.size != 4

  validate_location_params(geocoords)
end

#validate_location_params(params) ⇒ Object 



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# File 'lib/google_maps_juice/directions.rb', line 44

def validate_location_params(params)
  latitudes = params[0], params[2]
  if latitudes.any? { |l| l.abs > 90 }
    raise ArgumentError, 'Wrong latitude value'
  end
  longitudes = params[1], params[3]
  if longitudes.any? { |l| l.abs > 180 }
    raise ArgumentError, 'Wrong longitude value'
  end
end