openroutes.cr

module OpenRoutes
  module Geocode
    def search_address(text)
      search(
        api_key: ENV["OPENROUTE_API_KEY"],
        text: text,
        boundary_country: ["AT"],
        sources: %w[openstreetmap openaddresses],
        layers: %w[address]
      )
    end

    def autocomplete_address(text)
      autocomplete(
        api_key: ENV["OPENROUTE_API_KEY"],
        text: text,
        boundary_country: ["AT"],
        sources: %w[openstreetmap openaddresses],
        layers: %w[address]
      )
    end

    def autocomplete_town(text)
      autocomplete(
        api_key: ENV["OPENROUTE_API_KEY"],
        text: text,
        boundary_country: ["AT"],
        sources: %w[whosonfirst geonames],
        layers: %w[coarse]
      )
    end

    def autocomplete(
      api_key : String,
      text : String,
      focus_point_lon : Float64? = nil,
      focus_point_lat : Float64? = nil,
      boundary_rect_min_lon : Float64? = nil,
      boundary_rect_min_lat : Float64? = nil,
      boundary_rect_max_lon : Float64? = nil,
      boundary_rect_max_lat : Float64? = nil,
      boundary_country : Array(String) = [] of String,
      language : String? = "de-AT",
      sources : Array(String) = %w[openstreetmap openaddresses whosonfirst geonames],
      layers : Array(String) = %w[address venue neighbourhood locality borough localadmin county region macrocounty macroregion country coarse]
    )
      url = URI.parse("https://api.openrouteservice.org/geocode/autocomplete")

      url.query = HTTP::Params.new({
        "api_key" => [api_key],
        "text"    => [text],
        "lang"    => [language],
        # "focus_point_lon" => [ focus_point_lon.to_s ],
        # "focus_point_lat" : [ focus_point_lat.to_s ],
        # "boundary_rect_min_lon" : [ boundary_rect_min_lon.to_s ],
        # "boundary_rect_min_lat" : [ boundary_rect_min_lat.to_s ],
        # "boundary_rect_max_lon" : [ boundary_rect_max_lon.to_s ],
        # "boundary_rect_max_lat" : [ boundary_rect_max_lat.to_s ],
        "boundary_country": [boundary_country.join(",")],
        "sources":          [sources.join(",")],
        "layers":           [layers.join(",")],
      }).to_s

      HTTP::Client.get(url) do |response|
        GeoJSON::FeatureCollection.from_json(response.body_io)
      end
    end

    def search(
      api_key : String,
      text : String,
      focus_point_lon : Float64? = nil,
      focus_point_lat : Float64? = nil,
      boundary_rect_min_lon : Float64? = nil,
      boundary_rect_min_lat : Float64? = nil,
      boundary_rect_max_lon : Float64? = nil,
      boundary_rect_max_lat : Float64? = nil,
      boundary_country : Array(String) = [] of String,
      language : String? = "de-AT",
      sources : Array(String) = %w[openstreetmap openaddresses whosonfirst geonames],
      layers : Array(String) = %w[address venue neighbourhood locality borough localadmin county region macrocounty macroregion country coarse]
    )
      url = URI.parse("https://api.openrouteservice.org/geocode/search")

      url.query = HTTP::Params.new({
        "api_key" => [api_key],
        "text"    => [text],
        "lang"    => [language],
        # "focus_point_lon" => [ focus_point_lon.to_s ],
        # "focus_point_lat" : [ focus_point_lat.to_s ],
        # "boundary_rect_min_lon" : [ boundary_rect_min_lon.to_s ],
        # "boundary_rect_min_lat" : [ boundary_rect_min_lat.to_s ],
        # "boundary_rect_max_lon" : [ boundary_rect_max_lon.to_s ],
        # "boundary_rect_max_lat" : [ boundary_rect_max_lat.to_s ],
        "boundary_country": [boundary_country.join(",")],
        "sources":          [sources.join(",")],
        "layers":           [layers.join(",")],
      }).to_s

      HTTP::Client.get(url) do |response|
        GeoJSON::FeatureCollection.from_json(response.body_io)
      end
    end
  end
end