msgpart:addLastChild

require("msys.core");
require("msys.extended.message");
require("msys.dumper");

local function add_disclaimer(msg, plain, html)
  local p = msg:mime(false)

  if p == nil then
    return
  elseif p.parts != nil then
    if plain != nil then
      local plain_part = msg:makePart("text/plain", plain)
      plain_part.body_start = 0
      plain_part.body_end = #plain
      p:addLastChild(plain_part)
    end
    if html != nil then
      local html_part = msg:makePart("text/html", html)
      html_part.body_start = 0
      html_part.body_end = #html
      p:addLastChild(html_part)
    end
  else
    if plain != nil then
      msg:text_replace("\r\n.\r\n", plain.."\r\n.\r\n")
    elseif html != nil then
      msg:text_replace("\r\n.\r\n", html.."\r\n.\r\n")
    else
      error("add_disclaimer: both plain and html are nil")
    end
  end
end

local mod = {};

function mod:validate_data(msg, accept, vctx)
  print(msys.dumper.Dumper(msg));
  add_disclaimer(msg, "Disclaimer", "<b>Disclaimer</b>")
  return msys.core.VALIDATE_CONT
end

msys.registerModule("myValid", mod);