#include <xmpp/adhoc_command.hpp>

using namespace std::string_literals;

AdhocCommand::AdhocCommand(std::vector<AdhocStep>&& callbacks, const std::string& name, const bool admin_only):
  name(name),
  callbacks(std::move(callbacks)),
  admin_only(admin_only)
{
}

AdhocCommand::~AdhocCommand()
{
}

void PingStep1(AdhocSession&, XmlNode& command_node)
{
  XmlNode note("note");
  note["type"] = "info";
  note.set_inner("Pong");
  note.close();
  command_node.add_child(std::move(note));
}

void HelloStep1(AdhocSession&, XmlNode& command_node)
{
  XmlNode x("jabber:x:data:x");
  x["type"] = "form";
  XmlNode title("title");
  title.set_inner("Configure your name.");
  title.close();
  x.add_child(std::move(title));
  XmlNode instructions("instructions");
  instructions.set_inner("Please provide your name.");
  instructions.close();
  x.add_child(std::move(instructions));
  XmlNode name_field("field");
  name_field["var"] = "name";
  name_field["type"] = "text-single";
  name_field["label"] = "Your name";
  XmlNode required("required");
  required.close();
  name_field.add_child(std::move(required));
  name_field.close();
  x.add_child(std::move(name_field));
  x.close();
  command_node.add_child(std::move(x));
}

void HelloStep2(AdhocSession& session, XmlNode& command_node)
{
  // Find out if the name was provided in the form.
  XmlNode* x = command_node.get_child("x", "jabber:x:data");
  if (x)
    {
      XmlNode* name_field = nullptr;
      for (XmlNode* field: x->get_children("field", "jabber:x:data"))
        if (field->get_tag("var") == "name")
          {
            name_field = field;
            break;
          }
      if (name_field)
        {
          XmlNode* value = name_field->get_child("value", "jabber:x:data");
          if (value)
            {
              XmlNode note("note");
              note["type"] = "info";
              note.set_inner("Hello "s + value->get_inner() + "!"s);
              note.close();
              command_node.delete_all_children();
              command_node.add_child(std::move(note));
              return;
            }
        }
    }
  // TODO insert an error telling the name value is missing.  Also it's
  // useless to terminate it, since this step is the last of the command
  // anyway. But this is for the example.
  session.terminate();
}