# Title:
#    Definition Source Required
# Constraint Description:
#    All CCO classes and object properties that have a skos:definition should also
#    have a cco:ont00001754 [definition source] annotation. Terms missing a
#    definition source are flagged as warnings. Some terms may legitimately lack a
#    source (e.g., primitive relations); those should be reviewed case by case.
# Severity:
#    Warning
# Reference:
#    CCO Release Process v2, Step 6h
#    Pattern based on: min_1_eng_def.sparql
# Author:
#    github.com/shanmukhkalasamudram

PREFIX owl:  <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX cco:  <https://www.commoncoreontologies.org/>

SELECT DISTINCT ?resource ?label ?error
WHERE {
  VALUES ?type { owl:Class owl:ObjectProperty }
  ?resource a ?type .

  # Must have a definition (already caught by min_1_eng_def if missing)
  ?resource skos:definition ?definition .

  # Scope to current CCO terms only
  FILTER (regex(str(?resource), "https://www.commoncoreontologies.org/"))
  FILTER (!isBlank(?resource))

  # Flag those missing a definition source
  OPTIONAL { ?resource cco:ont00001754 ?source }
  FILTER (!bound(?source))

  OPTIONAL { ?resource rdfs:label ?label }

  BIND (CONCAT("WARNING: Term ", str(?resource), " has a definition but is missing cco:ont00001754 [definition source].") AS ?error)
}
ORDER BY ?resource