@prefix sh:     <http://www.w3.org/ns/shacl#> .
@prefix xsd:    <http://www.w3.org/2001/XMLSchema#> .
@prefix sh_sec: <https://secorolab.github.io/metamodels/website/> .
@prefix course: <https://secorolab.github.io/metamodels/website/course#> .

sh_sec:CourseShape
    a sh:NodeShape ;
    sh:targetClass course:Course ;
    sh:closed false ;

    sh:property [
        sh:path     course:name ;
        sh:datatype xsd:string ;
        sh:minCount 1 ;
        sh:maxCount 1 ;
        sh:minLength 2 ;
        sh:severity sh:Violation ;
        sh:message  "Course must have a name." ;
    ] ;

    sh:property [
        sh:path     course:course-code ;
        sh:datatype xsd:string ;
        sh:minCount 1 ;
        sh:maxCount 1 ;
        sh:minLength 2 ;
        sh:severity sh:Violation ;
        sh:message  "Course must have a course code." ;
    ] ;

    sh:property [
        sh:path     course:semester ;
        sh:datatype xsd:string ;
        sh:minCount 1 ;
        sh:maxCount 1 ;
        sh:minLength 2 ;
        sh:severity sh:Violation ;
        sh:message  "Course must have a semester." ;
    ] ;

    sh:property [
        sh:path     course:description ;
        sh:datatype xsd:string ;
        sh:maxCount 1 ;
        sh:severity sh:Warning ;
        sh:message  "Course should have a description." ;
    ] ;

    sh:property [
        sh:path     course:format ;
        sh:datatype xsd:string ;
        sh:maxCount 1 ;
    ] ;

    sh:property [
        sh:path     course:credits ;
        sh:datatype xsd:string ;
        sh:maxCount 1 ;
    ] ;

    sh:property [
        sh:path     course:language ;
        sh:datatype xsd:string ;
        sh:maxCount 1 ;
    ] ;

    sh:property [
        sh:path     course:prerequisites ;
        sh:datatype xsd:string ;
        sh:maxCount 1 ;
    ] ;

    sh:property [
        sh:path     course:teaching-assistants ;
        sh:nodeKind sh:BlankNodeOrIRI ;
        sh:node     sh_sec:CourseAssistantShape ;
        sh:message  "Teaching assistants must be objects with ta-ref and optional ta-name." ;
    ] ;

    sh:property [
        sh:path     course:learning-focus ;
        sh:datatype xsd:string ;
    ] ;

    sh:property [
        sh:path     course:materials ;
        sh:nodeKind sh:BlankNodeOrIRI ;
        sh:node     sh_sec:CourseMaterialShape ;
        sh:message  "Course materials must be objects with name and optional ref." ;
    ] ;

    sh:property [
        sh:path     course:url ;
        sh:nodeKind sh:IRI ;
        sh:maxCount 1 ;
    ] ;
.

sh_sec:CourseAssistantShape
    a sh:NodeShape ;
    sh:closed false ;

    sh:property [
        sh:path     course:ta-ref ;
        sh:nodeKind sh:IRI ;
        sh:minCount 1 ;
        sh:maxCount 1 ;
        sh:message  "Teaching assistant must have a ta-ref." ;
    ] ;

    sh:property [
        sh:path     course:ta-name ;
        sh:datatype xsd:string ;
        sh:maxCount 1 ;
        sh:minLength 2 ;
        sh:message  "Teaching assistant must have a display name." ;
    ] ;

.

sh_sec:CourseMaterialShape
    a sh:NodeShape ;
    sh:targetClass course:CourseMaterial ;
    sh:closed false ;

    sh:property [
        sh:path     course:material-text ;
        sh:datatype xsd:string ;
        sh:minCount 1 ;
        sh:maxCount 1 ;
        sh:minLength 2 ;
        sh:message  "Course material must have display text." ;
    ] ;

    sh:property [
        sh:path     course:material-url ;
        sh:nodeKind sh:IRI ;
        sh:maxCount 1 ;
    ] ;
.