Add membership source

Signed-off-by: Bryan Frimin <bryan@getprobo.com>

pkg/coredata/membership_source.go

@@ -0,0 +1,57 @@
+// Copyright (c) 2025 Probo Inc <hello@getprobo.com>.
+//
+// Permission to use, copy, modify, and/or distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+// PERFORMANCE OF THIS SOFTWARE.
+
+package coredata
+
+import (
+	"database/sql/driver"
+	"fmt"
+)
+
+type MembershipSource string
+
+const (
+	MembershipSourceManual MembershipSource = "MANUAL"
+	MembershipSourceSAML   MembershipSource = "SAML"
+)
+
+func (s MembershipSource) String() string {
+	return string(s)
+}
+
+func (s *MembershipSource) Scan(value any) error {
+	var str string
+	switch v := value.(type) {
+	case string:
+		str = v
+	case []byte:
+		str = string(v)
+	default:
+		return fmt.Errorf("unsupported type for MembershipSource: %T", value)
+	}
+
+	switch str {
+	case "MANUAL":
+		*s = MembershipSourceManual
+	case "SAML":
+		*s = MembershipSourceSAML
+	default:
+		return fmt.Errorf("invalid MembershipSource value: %q", str)
+	}
+	return nil
+}
+
+func (s MembershipSource) Value() (driver.Value, error) {
+	return s.String(), nil
+}