module OpenRouteClient

# File lib/open_route_client.rb, line 13
def fetch_distance(start_address, destination_address)
  start = locate(start_address)
  destination = locate(destination_address)

  coordinates = start[:latitude].to_s + "," + start[:longitude].to_s + "|" +
    destination[:latitude].to_s + "," + destination[:longitude].to_s

  api_endpoint = OPENROUTE_URI + 'directions'

  params = { params: {
    api_key: OPENROUTE_API_KEY,
    coordinates: coordinates,
    profile: 'cycling-road'
  } }.merge(HEADERS)

  response = RestClient.get(api_endpoint, params)
  json_body = JSON.parse(response.body)

  distance_in_meters = json_body["routes"].first["summary"]["distance"]
  distance_in_kilometers = (distance_in_meters/1000).round(0)

  return distance_in_kilometers
end

# File lib/open_route_client.rb, line 37
def locate(address)
  api_endpoint = OPENROUTE_URI + 'geocode/search'

  params = { params: {
    api_key: OPENROUTE_API_KEY,
    text: address
  } }.merge(HEADERS)

  response = RestClient.get(api_endpoint, params)
  json_body = JSON.parse(response.body)

  coordinates = json_body["features"].first["geometry"]["coordinates"]

  return {
    latitude: coordinates[0],
    longitude: coordinates[1]
  }
end