offline tool: add global-fees cmd

src/timestamp.ml

@@ -23,6 +23,23 @@ let of_span_exn = function
 
 (* -- *)
 
+(* TODO
+   this doesn't handle "never" value, and truncate time *)
+let of_string s =
+  match Float.of_string_opt s with
+  | None -> Error "Timestamp.of_string failure: not a float"
+  | Some v -> (
+      match Ptime.of_float_s v with
+      | None -> Error "Timestamp.of_string failure"
+      | Some v -> Ok (Some v))
+
+let pp fmt t =
+  match t with
+  | None -> Fmt.pf fmt {|"never"|}
+  | Some v ->
+      let v = Ptime.to_float_s v in
+      Fmt.pf fmt {|%f|} v
+
 (* microseconds since the UNIX Epoch, or "never" if None *)
 let jsont =
   let number_or_never_jsont =
@@ -80,6 +97,23 @@ let compare a b =
 module Span = struct
   type t = span
 
+  (* TODO
+   this doesn't handle "never" value, and truncate time *)
+  let of_string s =
+    match Float.of_string_opt s with
+    | None -> Error "Timestamp.Span.of_string failure: not a float"
+    | Some v -> (
+        match Ptime.Span.of_float_s v with
+        | None -> Error "Timestamp.Span.of_string failure"
+        | Some v -> Ok (Some v))
+
+  let pp fmt t =
+    match t with
+    | None -> Fmt.pf fmt {|"forever"|}
+    | Some v ->
+        let v = Ptime.Span.to_float_s v in
+        Fmt.pf fmt {|%f|} v
+
   let to_int64 ptime = ptime |> Ptime.Span.to_float_s |> Int64.of_float
 
   let of_int64 i =