module Types = Linol_lsp.Types
(** Generate a diagnostic from the report *)

let position : Lexing.position -> Types.Position.t =
 fun pos ->
  {
    character = pos.Lexing.pos_cnum - pos.Lexing.pos_bol;
    line = pos.Lexing.pos_lnum - 1;
  }

let build : Qsp_syntax.Report.t -> Types.Diagnostic.t =
 fun { level; loc; message } ->
  let severity =
    match level with
    | Error -> Types.DiagnosticSeverity.Error
    | Warn -> Types.DiagnosticSeverity.Warning
    | Debug -> Types.DiagnosticSeverity.Hint
  in

  let start = position (fst loc) and end_ = position (snd loc) in
  let range = Types.Range.{ start; end_ } in

  let message = `String message in
  Types.Diagnostic.create ~range ~message ~severity ()