1 files changed, 51 insertions, 0 deletions
diff --git a/skate/zippy.go b/skate/zippy.go
index 6034351..4d3aa04 100644
--- a/skate/zippy.go
+++ b/skate/zippy.go
@@ -200,6 +200,57 @@ func ZippyVerifyRefsOpenLibraryTable(olr, refs io.Reader, w io.Writer) error {
 	return zipper.Run()
 }
 
+// ZippyVerifyRefsOpenLibrary takes OL editions (as release) and refs (as
+// release) and emits a match table for manual inspection.
+func ZippyVerifyRefsOpenLibrary(olr, refs io.Reader, w io.Writer) error {
+	var (
+		enc     = json.NewEncoder(w)
+		keyer   = makeKeyFunc("\t", 1)
+		grouper = func(g *zipkey.Group) error {
+			var (
+				ref, pivot *Release // ref (reference), pivot (open library)
+				err        error
+			)
+			if len(g.G0) == 0 || len(g.G1) == 0 {
+				return nil
+			}
+			// We take a single edition from OL.
+			if pivot, err = stringToRelease(Cut(g.G0[0], 2)); err != nil {
+				return err
+			}
+			for _, line := range g.G1 {
+				if ref, err = stringToRelease(Cut(line, 2)); err != nil {
+					return err
+				}
+				// The refs have a container name, but not a title, but here we
+				// compare against titles from open library.
+				result := Verify(pivot, ref)
+				switch result.Status {
+				case StatusExact, StatusStrong:
+					var bref BiblioRef
+					bref.SourceReleaseIdent = ref.Ident
+					bref.SourceWorkIdent = ref.WorkID
+					bref.SourceReleaseStage = ref.ReleaseStage
+					bref.SourceYear = fmt.Sprintf("%d", ref.ReleaseYear())
+					bref.RefIndex = ref.Extra.Skate.Ref.Index + 1 // we want 1-index (also helps with omitempty)
+					bref.RefKey = ref.Extra.Skate.Ref.Key
+					bref.TargetOpenLibraryWork = pivot.WorkID
+					bref.MatchProvenance = ref.Extra.Skate.Ref.Source
+					bref.MatchStatus = result.Status.Short()
+					bref.MatchReason = result.Reason.Short()
+					if err := enc.Encode(bref); err != nil {
+						return err
+					}
+				default:
+				}
+			}
+			return nil
+		}
+	)
+	zipper := zipkey.New(olr, refs, keyer, grouper)
+	return zipper.Run()
+}
+
 // Cut returns a specific column (1-indexed, like CutSep) from a tabular
 // file, returns empty string if column is invalid.
 func Cut(line string, column int) string {