Claudio Ortolina
72 lines
1.6 KiB
Elixir
72 lines
1.6 KiB
Elixir
defmodule LastFm.Track do
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@moduledoc """
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Data is not always guaranteed:
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- musicbrainz_id can be an empty string
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"""
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use Ecto.Schema
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alias LastFm.{Album, Artist}
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@type t :: %__MODULE__{
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musicbrainz_id: String.t(),
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title: String.t(),
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artist: Artist.t(),
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album: Album.t(),
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cover_url: String.t(),
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scrobbled_at_uts: integer(),
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scrobbled_at_label: String.t(),
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last_fm_data: map()
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}
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@primary_key {:scrobbled_at_uts, :integer, autogenerate: false}
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schema "scrobbled_tracks" do
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field :musicbrainz_id, :string
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field :title, :string
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field :cover_url, :string
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field :scrobbled_at_label, :string
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embeds_one :artist, Artist
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embeds_one :album, Album
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field :last_fm_data, :map, default: %{}
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end
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def from_api_response(raw_tracks) do
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Enum.map(raw_tracks, fn t ->
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album = %Album{
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musicbrainz_id: t["album"]["mbid"],
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title: t["album"]["#text"]
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}
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artist = %Artist{
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musicbrainz_id: t["artist"]["mbid"],
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name: t["artist"]["#text"]
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}
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%__MODULE__{
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musicbrainz_id: t["mbid"],
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title: t["name"],
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artist: artist,
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album: album,
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cover_url: parse_cover_url(t),
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scrobbled_at_uts: parse_scrobble_at_uts(t),
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scrobbled_at_label: t["date"]["#text"],
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last_fm_data: t
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}
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end)
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end
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defp parse_cover_url(track) do
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track["image"]
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|> Enum.find(%{"#text" => nil}, fn i -> i["size"] == "medium" end)
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|> Map.get("#text")
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end
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defp parse_scrobble_at_uts(track) do
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track["date"]["uts"]
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|> String.to_integer()
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end
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end
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