(* Inspect Event 4 in detail *)

open Nock_lib

let to_atom_if_small noun =
  match noun with
  | Noun.Atom a ->
      if Z.numbits a <= 32 then
        Printf.sprintf "Atom(%s / 0x%s)" (Z.to_string a) (Z.format "x" a)
      else
        Printf.sprintf "Atom(large, %d bits)" (Z.numbits a)
  | Noun.Cell _ -> "Cell"

let rec to_list acc noun =
  match noun with
  | Noun.Atom _ -> List.rev acc
  | Noun.Cell (item, rest) -> to_list (item :: acc) rest

let inspect _env =
  let in_channel = open_in_bin "solid.noun" in
  let pill = (Marshal.from_channel in_channel : Noun.noun) in
  close_in in_channel;

  match pill with
  | Noun.Cell (_tag, events) ->
      let event_list = to_list [] events in

      (* Event 3 *)
      Printf.printf "=== EVENT 3 ===\n\n";
      begin match List.nth_opt event_list 3 with
      | Some (Noun.Cell (wire, card)) ->
          Printf.printf "Event 3: [wire card]\n\n";

          Printf.printf "Wire:\n";
          Printf.printf "  %s\n" (to_atom_if_small wire);

          (* If wire is a cell (path), show first few elements *)
          begin match wire with
          | Noun.Cell (w1, rest1) ->
              Printf.printf "  Head: %s\n" (to_atom_if_small w1);
              begin match rest1 with
              | Noun.Cell (w2, rest2) ->
                  Printf.printf "  [1]: %s\n" (to_atom_if_small w2);
                  begin match rest2 with
                  | Noun.Cell (w3, _) ->
                      Printf.printf "  [2]: %s\n" (to_atom_if_small w3)
                  | Noun.Atom a ->
                      Printf.printf "  Tail: Atom(%s)\n" (Z.to_string a)
                  end
              | Noun.Atom a ->
                  Printf.printf "  Tail: Atom(%s)\n" (Z.to_string a)
              end
          | Noun.Atom _ -> ()
          end;

          Printf.printf "\nCard:\n";
          begin match card with
          | Noun.Cell (term, data) ->
              Printf.printf "  [term data]\n";
              Printf.printf "  Term: %s\n" (to_atom_if_small term);
              (* Try to convert term to ASCII *)
              begin match term with
              | Noun.Atom a when Z.numbits a <= 32 ->
                  let bytes = Z.to_bits a in
                  Printf.printf "  Term ASCII: '%s'\n" bytes
              | _ -> ()
              end;
              Printf.printf "  Data: %s\n" (to_atom_if_small data)
          | Noun.Atom a ->
              Printf.printf "  Atom: %s\n" (Z.to_string a)
          end

      | _ -> Printf.printf "Event 3 not found or wrong format\n"
      end;

      Printf.printf "\n═══════════════════════════════════════\n\n";

      (* Event 4 *)
      Printf.printf "=== EVENT 4 ===\n\n";
      begin match List.nth_opt event_list 4 with
      | Some (Noun.Cell (wire, card)) ->
          Printf.printf "Event 4: [wire card]\n\n";

          Printf.printf "Wire:\n";
          Printf.printf "  %s\n" (to_atom_if_small wire);

          begin match wire with
          | Noun.Cell (w1, rest1) ->
              Printf.printf "  Head: %s\n" (to_atom_if_small w1);
              begin match rest1 with
              | Noun.Cell (w2, rest2) ->
                  Printf.printf "  [1]: %s\n" (to_atom_if_small w2);
                  begin match rest2 with
                  | Noun.Cell (w3, _) ->
                      Printf.printf "  [2]: %s\n" (to_atom_if_small w3)
                  | Noun.Atom a ->
                      Printf.printf "  Tail: Atom(%s)\n" (Z.to_string a)
                  end
              | Noun.Atom a ->
                  Printf.printf "  Tail: Atom(%s)\n" (Z.to_string a)
              end
          | Noun.Atom _ -> ()
          end;

          Printf.printf "\nCard:\n";
          begin match card with
          | Noun.Cell (term, data) ->
              Printf.printf "  [term data]\n";
              Printf.printf "  Term: %s\n" (to_atom_if_small term);
              (* Try to convert term to ASCII *)
              begin match term with
              | Noun.Atom a when Z.numbits a <= 32 ->
                  let bytes = Z.to_bits a in
                  Printf.printf "  Term ASCII: '%s'\n" bytes
              | _ -> ()
              end;
              Printf.printf "  Data: %s\n" (to_atom_if_small data)
          | Noun.Atom a ->
              Printf.printf "  Atom: %s\n" (Z.to_string a)
          end

      | _ -> Printf.printf "Event 4 not found or wrong format\n"
      end

  | Noun.Atom _ ->
      Printf.printf "Pill is atom\n"

let () =
  Printf.printf "\n═══════════════════════════════════════\n";
  Printf.printf " Inspect Events 3 and 4 in Detail\n";
  Printf.printf "═══════════════════════════════════════\n\n";
  Eio_main.run inspect