1 files changed, 17 insertions, 0 deletions
diff --git a/internal/calfeed/json.go b/internal/calfeed/json.go
new file mode 100644
index 0000000..c1a50ca
--- /dev/null
+++ b/internal/calfeed/json.go
@@ -0,0 +1,17 @@
+package calfeed
+
+import "encoding/json"
+
+const Schema = "lectio.calendar/1"
+
+// JSON renders days as the stable lectio.calendar/1 envelope.
+func JSON(form string, days []DayView) ([]byte, error) {
+	if days == nil {
+		days = []DayView{}
+	}
+	return json.MarshalIndent(struct {
+		Schema string    `json:"schema"`
+		Form   string    `json:"form"`
+		Days   []DayView `json:"days"`
+	}{Schema, form, days}, "", "  ")
+}