Claudio Ortolina
138 lines
3.8 KiB
Elixir
138 lines
3.8 KiB
Elixir
defmodule MusicLibrary.Artists.ArtistInfo do
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use Ecto.Schema
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import Ecto.Changeset
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alias MusicBrainz.ExternalLink
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alias MusicLibrary.Notes.Note
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@primary_key {:id, :binary_id, autogenerate: true}
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@foreign_key_type :binary_id
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schema "artist_infos" do
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field :musicbrainz_data, :map, default: %{}
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field :discogs_data, :map, default: %{}
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field :wikipedia_data, :map, default: %{}
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field :lastfm_data, :map, default: %{}
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field :image_data_hash, :string
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has_one :note, Note, foreign_key: :musicbrainz_id
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timestamps(type: :utc_datetime)
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end
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@type t :: %__MODULE__{}
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@spec changeset(t() | Ecto.Changeset.t(), map()) :: Ecto.Changeset.t()
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def changeset(artist_info, attrs) do
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# :id is cast because it's set from MusicBrainz, not autogenerated
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artist_info
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|> cast(attrs, [
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:id,
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:musicbrainz_data,
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:discogs_data,
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:wikipedia_data,
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:lastfm_data,
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:image_data_hash
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])
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|> validate_required([:musicbrainz_data])
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end
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@spec country(t()) :: %{name: String.t(), code: String.t()}
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def country(artist_info) do
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area = Map.get(artist_info.musicbrainz_data, "area", %{})
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country_code =
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case area["iso-3166-1-codes"] || area["iso-3166-2-codes"] do
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[code | _rest] -> code
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nil -> artist_info.musicbrainz_data["country"]
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end
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%{name: area["name"] || "World", code: country_code || "XW"}
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end
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@spec extract_image(t()) ::
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{:ok, %{url: String.t(), width: integer()}}
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| {:error, :no_discogs_data | :image_not_found}
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def extract_image(artist_info) when is_nil(artist_info.discogs_data) do
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{:error, :no_discogs_data}
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end
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def extract_image(artist_info) do
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image =
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extract_image(artist_info.discogs_data, "primary") ||
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extract_image(artist_info.discogs_data, "secondary")
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if image do
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{:ok, %{url: image["resource_url"], width: image["width"]}}
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else
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{:error, :image_not_found}
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end
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end
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defp extract_image(discogs_data, type) do
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Enum.find(discogs_data["images"] || [], fn image ->
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image["type"] == type
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end)
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end
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@external_link_patterns %{
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"ProgArchives" => "progarchives.com"
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}
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@spec external_links(t()) :: [map()]
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def external_links(artist_info),
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do: ExternalLink.external_links(artist_info.musicbrainz_data, @external_link_patterns)
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@spec discogs_id(t()) :: integer() | nil
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def discogs_id(artist_info) do
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case artist_info.discogs_data do
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%{"id" => discogs_id} -> discogs_id
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_ -> nil
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end
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end
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@spec wikidata_id(t()) :: String.t() | nil
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def wikidata_id(artist_info) do
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relations = get_in(artist_info.musicbrainz_data, ["relations"]) || []
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Enum.find_value(relations, fn
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%{"type" => "wikidata", "url" => %{"resource" => "https://www.wikidata.org/wiki/" <> id}} ->
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id
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_ ->
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nil
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end)
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end
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@spec wikipedia_bio(t()) :: String.t() | nil
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def wikipedia_bio(artist_info) do
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get_in(artist_info.wikipedia_data, ["intro_html"]) ||
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get_in(artist_info.wikipedia_data, ["extract_html"])
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end
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@spec wikipedia_summary(t()) :: String.t() | nil
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def wikipedia_summary(artist_info) do
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get_in(artist_info.wikipedia_data, ["extract"])
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end
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@spec wikipedia_url(t()) :: String.t() | nil
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def wikipedia_url(artist_info) do
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get_in(artist_info.wikipedia_data, ["content_urls", "desktop", "page"])
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end
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@spec wikipedia_description(t()) :: String.t() | nil
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def wikipedia_description(artist_info) do
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get_in(artist_info.wikipedia_data, ["description"])
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end
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@spec lastfm_tags(t()) :: [map()]
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def lastfm_tags(artist_info) do
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get_in(artist_info.lastfm_data, ["tags"]) || []
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end
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@spec lastfm_similar_artists(t()) :: [map()]
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def lastfm_similar_artists(artist_info) do
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get_in(artist_info.lastfm_data, ["similar_artists"]) || []
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end
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end
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