Claudio Ortolina
95 lines
2.2 KiB
Elixir
95 lines
2.2 KiB
Elixir
defmodule LastFm.Track do
|
|
@moduledoc """
|
|
Data is not always guaranteed:
|
|
|
|
- musicbrainz_id can be an empty string
|
|
"""
|
|
|
|
use Ecto.Schema
|
|
|
|
import Ecto.Changeset
|
|
|
|
alias LastFm.{Album, Artist}
|
|
|
|
@type t :: %__MODULE__{
|
|
musicbrainz_id: String.t(),
|
|
title: String.t(),
|
|
artist: Artist.t(),
|
|
album: Album.t(),
|
|
cover_url: String.t(),
|
|
scrobbled_at_uts: integer(),
|
|
scrobbled_at_label: String.t(),
|
|
last_fm_data: map()
|
|
}
|
|
|
|
@primary_key {:scrobbled_at_uts, :integer, autogenerate: false}
|
|
schema "scrobbled_tracks" do
|
|
field :musicbrainz_id, :string
|
|
field :title, :string
|
|
field :cover_url, :string
|
|
field :scrobbled_at_label, :string
|
|
|
|
embeds_one :artist, Artist, on_replace: :update
|
|
embeds_one :album, Album, on_replace: :update
|
|
|
|
field :last_fm_data, :map, default: %{}
|
|
end
|
|
|
|
def from_api_response(raw_tracks) do
|
|
raw_tracks
|
|
|> Enum.reject(&now_playing?/1)
|
|
|> Enum.map(fn t ->
|
|
album = %Album{
|
|
musicbrainz_id: t["album"]["mbid"],
|
|
title: t["album"]["#text"]
|
|
}
|
|
|
|
artist = %Artist{
|
|
musicbrainz_id: t["artist"]["mbid"],
|
|
name: t["artist"]["#text"]
|
|
}
|
|
|
|
%__MODULE__{
|
|
musicbrainz_id: t["mbid"],
|
|
title: t["name"],
|
|
artist: artist,
|
|
album: album,
|
|
cover_url: parse_cover_url(t),
|
|
scrobbled_at_uts: parse_scrobble_at_uts(t),
|
|
scrobbled_at_label: t["date"]["#text"],
|
|
last_fm_data: t
|
|
}
|
|
end)
|
|
end
|
|
|
|
defp now_playing?(raw_track) do
|
|
get_in(raw_track, ["@attr", "nowplaying"]) == "true"
|
|
end
|
|
|
|
defp parse_cover_url(track) do
|
|
track["image"]
|
|
|> Enum.find(%{"#text" => nil}, fn i -> i["size"] == "medium" end)
|
|
|> Map.get("#text")
|
|
end
|
|
|
|
defp parse_scrobble_at_uts(track) do
|
|
track["date"]["uts"]
|
|
|> String.to_integer()
|
|
end
|
|
|
|
def changeset(track, attrs) do
|
|
track
|
|
|> cast(attrs, [
|
|
:scrobbled_at_uts,
|
|
:musicbrainz_id,
|
|
:title,
|
|
:cover_url,
|
|
:scrobbled_at_label,
|
|
:last_fm_data
|
|
])
|
|
|> cast_embed(:artist)
|
|
|> cast_embed(:album)
|
|
|> validate_required([:scrobbled_at_uts, :title])
|
|
end
|
|
end
|