# formatter with lsp fallback
{ lib, pkgs, ... }:
{
  plugins.conform-nvim = {
    enable = true;

    settings = {
      default_format_opts.lsp_format = "prefer";
      notify_on_error = true;

      format_on_save = ''
        function(bufnr)
          if vim.g.disable_autoformat or vim.b[bufnr].disable_autoformat then
            return
          end

          if slow_format_filetypes[vim.bo[bufnr].filetype] then
            return
          end

          local function on_format(err)
            if err and err:match("timeout$") then
              slow_format_filetypes[vim.bo[bufnr].filetype] = true
            end
          end

          return { timeout_ms = 200, lsp_fallback = true }, on_format
         end
      '';

      format_after_save = ''
        function(bufnr)
          if vim.g.disable_autoformat or vim.b[bufnr].disable_autoformat then
            return
          end

          if not slow_format_filetypes[vim.bo[bufnr].filetype] then
            return
          end

          return { lsp_fallback = true }
        end
      '';

      formatters_by_ft = {
        "_" = [
          "squeeze_blanks"
          "trim_whitespace"
          "trim_newlines"
        ];
      };

      formatters.squeeze_blanks.command = lib.getExe' pkgs.coreutils "cat";
    };
  };
}