From 5a941ee497ddf7e21014373a41bc8a603fb4b9f8 Mon Sep 17 00:00:00 2001
From: swrup <swrup@protonmail.com>
Date: Thu, 4 Dec 2025 18:25:05 +0100
Subject: [PATCH] + wip DenomGroup

---
 src/api.ml | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/src/api.ml b/src/api.ml
index 19b615cb..b38e9f5d 100644
--- a/src/api.ml
+++ b/src/api.ml
@@ -963,3 +963,61 @@ module DenomCommon = struct
     |> mem "lost" (Jsont.option Jsont.bool) ~enc:lost
     |> finish
 end
+
+module DenomGroupRsa = struct
+  type t = {
+    rsa_pub: RsaPublicKey.t;
+    value: Amount.t;
+    fee_withdraw: Amount.t;
+    fee_deposit: Amount.t;
+    fee_refresh: Amount.t;
+    fee_refund: Amount.t;
+  }
+
+  let jsont =
+    let make rsa_pub value fee_withdraw fee_deposit fee_refresh fee_refund =
+      { rsa_pub; value; fee_withdraw; fee_deposit; fee_refresh; fee_refund }
+    in
+    let rsa_pub v = v.rsa_pub in
+    let value v = v.value in
+    let fee_withdraw v = v.fee_withdraw in
+    let fee_deposit v = v.fee_deposit in
+    let fee_refresh v = v.fee_refresh in
+    let fee_refund v = v.fee_refund in
+    let open Jsont.Object in
+    map ~kind:"DenomGroupRsa" make
+    |> mem "rsa_pub" RsaPublicKey.jsont ~enc:rsa_pub
+    |> mem "value" Amount.jsont ~enc:value
+    |> mem "fee_withdraw" Amount.jsont ~enc:fee_withdraw
+    |> mem "fee_deposit" Amount.jsont ~enc:fee_deposit
+    |> mem "fee_refresh" Amount.jsont ~enc:fee_refresh
+    |> mem "fee_refund" Amount.jsont ~enc:fee_refund
+    |> finish
+end
+
+module DenomGroup = struct
+  (* TODO
+type DenomGroup =
+  | DenomGroupRsa
+  | DenomGroupCs
+  | DenomGroupRsaAgeRestricted
+  | DenomGroupCsAgeRestricted;
+  *)
+  type t = Rsa of DenomGroupRsa.t
+
+  let to_octets = function Rsa denom -> RsaPublicKey.to_octets denom.rsa_pub
+
+  let of_cs _v =
+    Jsont.Error.msg Jsont.Meta.none "CSDenominationKey are not supported"
+
+  let of_rsa v = Rsa v
+
+  let jsont =
+    let open Jsont.Object in
+    let rsa = Case.map "RSA" DenomGroupRsa.jsont ~dec:of_rsa in
+    let enc_case = function Rsa v -> Case.value rsa v in
+    let cases = Case.[ make rsa ] in
+    map ~kind:"DenomGroup" Fun.id
+    |> case_mem "cipher" Jsont.string ~enc:Fun.id ~enc_case cases
+    |> finish
+end