# Enums, list-valued properties, and an open type. A good second model to read after
# the starter: every feature here is one the generated artifacts disagree about.
lpg: "1.0"
namespace:
  prefix: cat
  iri: https://example.org/vocab/catalog#

enums:
  Format:
    id: x_fmt
    values: [vinyl, cd, digital]

mixins:
  Timestamped:
    id: m_ts
    props:
      createdAt: { id: p_cts, type: ZONED_DATETIME, required: true }

nodes:
  Release:
    id: n_rel
    mixins: [Timestamped]
    # A composite key: two properties identify one release.
    key: [label, catalogNumber]
    props:
      label:         { id: p_lab, type: STRING, required: true }
      catalogNumber: { id: p_num, type: STRING, required: true }
      format:        { id: p_fmt, type: string, enum: Format }
      genres:        { id: p_gen, type: LIST<STRING> }
      pressed:       { id: p_prs, type: DATE }

  Artist:
    id: n_art
    # Open: an artist may carry properties this model does not declare.
    open: true
    key: [slug]
    props:
      slug:    { id: p_slug, type: STRING, required: true }
      aliases: { id: p_ali, type: string, list: true }

edges:
  RELEASED_BY:
    id: e_relby
    from: Release
    to: Artist
    cardinality: { to: "1..*" }