Claudio Ortolina
7cf9b4e7f8
- spec public functions (skipping controllers, views, live views and components) - use types instead of explanations in docs - remove redundant docs - fix typos
81 lines
2.0 KiB
Elixir
81 lines
2.0 KiB
Elixir
defmodule MusicBrainz.Artist do
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@enforce_keys [:id, :name, :sort_name]
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defstruct [:id, :name, :sort_name, :country, :relations, :musicbrainz_data]
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@type t :: %__MODULE__{
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id: String.t(),
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name: String.t(),
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sort_name: String.t(),
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country: String.t() | nil,
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relations: [map()] | nil,
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musicbrainz_data: map() | nil
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}
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@spec from_api_response(map()) :: t()
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def from_api_response(r) do
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%__MODULE__{
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id: r["id"],
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name: r["name"],
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sort_name: r["sort-name"],
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country: r["country"],
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relations: parse_relations(r["relations"] || []),
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musicbrainz_data: r
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}
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end
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# MASSIVE ASSUMPTION: if there's more than one Discogs link,
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# take the one with the lowest ID, as it's likely to be the main one.
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@spec get_discogs_id(t()) :: integer() | nil
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def get_discogs_id(r) do
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candidates =
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r.relations
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|> Enum.filter(fn relation ->
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relation.type == "discogs"
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end)
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|> Enum.map(fn relation ->
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parse_discogs_id(relation.url["resource"])
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end)
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|> Enum.sort()
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case candidates do
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[] -> nil
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[id | _rest] -> id
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end
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end
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@spec get_wikidata_id(t()) :: String.t() | nil
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def get_wikidata_id(r) do
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Enum.find_value(r.relations, fn relation ->
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if relation.type == "wikidata" do
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parse_wikidata_id(relation.url["resource"])
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end
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end)
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end
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@spec url(String.t()) :: String.t()
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def url(id) do
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"https://musicbrainz.org/artist/#{id}"
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end
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defp parse_relations(relations) do
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Enum.map(relations, fn relation ->
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%{
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type: relation["type"],
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url: relation["url"]
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}
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end)
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end
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defp parse_discogs_id("https://www.discogs.com/artist/" <> id) do
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case Integer.parse(id) do
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{int, ""} -> int
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_ -> nil
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end
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end
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defp parse_discogs_id(_other), do: nil
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defp parse_wikidata_id("https://www.wikidata.org/wiki/" <> id), do: id
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defp parse_wikidata_id(_other), do: nil
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end
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