(* TODO
   - GNU Taler db-events?
     it seems caqti/pgx does not support it *)

let test req server _ =
  let (module Conn : Caqti_miou.CONNECTION) =
    Vif.Server.device Devices.db_connection server
  in
  let query =
    let open Caqti_request.Infix in
    Caqti_type.(unit ->! int) "SELECT 53 - 11"
  in
  match Conn.find query () with
  | Ok n ->
      let open Vif.Response.Syntax in
      let* () =
        Vif.Response.add ~field:"content-type" "text/plain; charset= utf-8"
      in
      let* () = Vif.Response.with_string req (Fmt.str "53 - 11 = %d@." n) in
      Vif.Response.respond `OK
  | Error err ->
      (* TODO don't leak private data in error messages *)
      let open Vif.Response.Syntax in
      let str = Fmt.str "Database error: %a." Caqti_error.pp err in
      let* () = Vif.Response.with_string req str in
      Vif.Response.respond `Internal_server_error

let test_activate req server _ =
  (*let (module Conn : Caqti_miou.CONNECTION) =*)
  let db_conn = Vif.Server.device Devices.db_connection server in
  let secmod_signkey = Vif.Server.device Devices.secmod_signkey server in
  let exchange_public_key = secmod_signkey.sm_key in
  match Pg.activate_signing_key db_conn exchange_public_key with
  | Ok () ->
      let open Vif.Response.Syntax in
      let* () =
        Vif.Response.add ~field:"content-type" "text/plain; charset= utf-8"
      in
      let* () =
        Vif.Response.with_string req (Fmt.str "activate_signing_key done~~@.")
      in
      Vif.Response.respond `OK
  | Error err ->
      (* TODO don't leak private data in error messages *)
      let open Vif.Response.Syntax in
      let str = Fmt.str "Database error: %a." Caqti_error.pp err in
      let* () = Vif.Response.with_string req str in
      Vif.Response.respond `Internal_server_error