(*---------------------------------------------------------------------------
   Copyright (c) 2015 The logs programmers. All rights reserved.
   SPDX-License-Identifier: ISC
  ---------------------------------------------------------------------------*)

let pp_key = Format.pp_print_string
let pp_val = Format.pp_print_string


let err_invalid_kv args =
  Logs.err @@ fun m ->
  args (fun k v -> m "invalid kv (%a,%a)" pp_key k pp_val v)

let err_no_carrier args =
  Logs.err @@ fun m -> args (m "NO CARRIER")

let main () =
  Fmt_tty.setup_std_outputs ();
  Logs.set_level @@ Some Logs.Debug;
  Logs.set_reporter @@ Logs_fmt.reporter ();
  Logs.info (fun m -> m ~header:"START" ?tags:None "Starting main");
  Logs.warn (fun m -> m "Hey be warned by %d." 7);
  Logs.err (fun m -> m "Hey be errored.");
  Logs.debug (fun m -> m "Would you mind to be debugged a bit ?");
  Logs.app (fun m -> m "This is for the application console or stdout.");
  Logs.app (fun m -> m ~header:"HEAD" "Idem but with a header");
  let k = "key" in
  let v = "value" in
  Logs.err (fun m -> m "invalid kv (%a,%a)" pp_key k pp_val v);
  Logs.err (fun m -> m "NO CARRIER");
  err_invalid_kv (fun args -> args k v);
  err_no_carrier (fun () -> ());
  Logs.info (fun m -> m "Ending main");
  exit (if (Logs.err_count () > 0) then 1 else 0)

let () = main ()