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99 lines
3.2 KiB
Elixir
99 lines
3.2 KiB
Elixir
defmodule Mobilizon.Service.Geospatial.Provider do
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@moduledoc """
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Provider Behaviour for Geospatial stuff.
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## Supported backends
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* `Mobilizon.Service.Geospatial.Nominatim` [🔗](https://wiki.openstreetmap.org/wiki/Nominatim)
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* `Mobilizon.Service.Geospatial.Photon` [🔗](https://photon.komoot.de)
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* `Mobilizon.Service.Geospatial.Addok` [🔗](https://github.com/addok/addok)
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* `Mobilizon.Service.Geospatial.MapQuest` [🔗](https://developer.mapquest.com/documentation/open/)
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* `Mobilizon.Service.Geospatial.GoogleMaps` [🔗](https://developers.google.com/maps/documentation/geocoding/intro)
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* `Mobilizon.Service.Geospatial.Mimirsbrunn` [🔗](https://github.com/CanalTP/mimirsbrunn)
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* `Mobilizon.Service.Geospatial.Pelias` [🔗](https://pelias.io)
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## Shared options
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* `:lang` Lang in which to prefer results. Used as a request parameter or
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through an `Accept-Language` HTTP header. Defaults to `"en"`.
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* `:country_code` An ISO 3166 country code. String or `nil`
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* `:limit` Maximum limit for the number of results returned by the backend.
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Defaults to `10`
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* `:api_key` Allows to override the API key (if the backend requires one) set
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inside the configuration.
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* `:endpoint` Allows to override the endpoint set inside the configuration.
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"""
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alias Mobilizon.Addresses.Address
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@doc """
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Get an address from longitude and latitude coordinates.
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## Options
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In addition to [the shared options](#module-shared-options), `c:geocode/3` also
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accepts the following options:
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* `zoom` Level of detail required for the address. Default: 15
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## Examples
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iex> geocode(48.11, -1.77)
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%Address{}
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"""
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@callback geocode(longitude :: number, latitude :: number, options :: keyword) ::
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[Address.t()]
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@doc """
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Search for an address
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## Options
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In addition to [the shared options](#module-shared-options), `c:search/2` also
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accepts the following options:
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* `coords` Map of coordinates (ex: `%{lon: 48.11, lat: -1.77}`) allowing to
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give a geographic priority to the search. Defaults to `nil`.
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* `type` Filter by type of results. Allowed values:
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* `:administrative` (cities, regions)
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## Examples
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iex> search("10 rue Jangot")
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%Address{}
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"""
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@callback search(address :: String.t(), options :: keyword) :: [Address.t()]
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@doc """
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Returns a `Geo.Point` for given coordinates
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"""
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@spec coordinates([number | String.t()]) :: Geo.Point.t() | nil
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def coordinates([x, y]) when is_number(x) and is_number(y) do
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%Geo.Point{coordinates: {x, y}, srid: 4326}
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end
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def coordinates([x, y]) when is_binary(x) and is_binary(y) do
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%Geo.Point{coordinates: {String.to_float(x), String.to_float(y)}, srid: 4326}
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end
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def coordinates(_), do: nil
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@doc """
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Returns the timezone for a Geo.Point
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"""
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@spec timezone(nil | Geo.Point.t()) :: nil | String.t()
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def timezone(nil), do: nil
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def timezone(%Geo.Point{} = point) do
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case TzWorld.timezone_at(point) do
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{:ok, tz} -> tz
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{:error, _err} -> nil
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end
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end
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@spec endpoint(atom()) :: String.t()
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def endpoint(provider) do
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Application.get_env(:mobilizon, provider) |> get_in([:endpoint])
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end
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end
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