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package graph
import (
core "github.com/authzed/spicedb/pkg/proto/core/v1"
"github.com/authzed/spicedb/pkg/tuple"
)
// Leaf constructs a RelationTupleTreeNode leaf.
func Leaf(start *tuple.ObjectAndRelation, subjects ...*core.DirectSubject) *core.RelationTupleTreeNode {
var startONR *core.ObjectAndRelation
if start != nil {
startONR = start.ToCoreONR()
}
return &core.RelationTupleTreeNode{
NodeType: &core.RelationTupleTreeNode_LeafNode{
LeafNode: &core.DirectSubjects{
Subjects: subjects,
},
},
Expanded: startONR,
CaveatExpression: nil, // Set by caller if necessary
}
}
func setResult(
op core.SetOperationUserset_Operation,
start *tuple.ObjectAndRelation,
children []*core.RelationTupleTreeNode,
) *core.RelationTupleTreeNode {
var startONR *core.ObjectAndRelation
if start != nil {
startONR = start.ToCoreONR()
}
return &core.RelationTupleTreeNode{
NodeType: &core.RelationTupleTreeNode_IntermediateNode{
IntermediateNode: &core.SetOperationUserset{
Operation: op,
ChildNodes: children,
},
},
Expanded: startONR,
CaveatExpression: nil, // Set by caller if necessary
}
}
// Union constructs a RelationTupleTreeNode union operation.
func Union(start *tuple.ObjectAndRelation, children ...*core.RelationTupleTreeNode) *core.RelationTupleTreeNode {
return setResult(core.SetOperationUserset_UNION, start, children)
}
// Intersection constructs a RelationTupleTreeNode intersection operation.
func Intersection(start *tuple.ObjectAndRelation, children ...*core.RelationTupleTreeNode) *core.RelationTupleTreeNode {
return setResult(core.SetOperationUserset_INTERSECTION, start, children)
}
// Exclusion constructs a RelationTupleTreeNode exclusion operation.
func Exclusion(start *tuple.ObjectAndRelation, children ...*core.RelationTupleTreeNode) *core.RelationTupleTreeNode {
return setResult(core.SetOperationUserset_EXCLUSION, start, children)
}
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