%% Created automatically by XML generator (fxml_gen.erl)
%% Source: xmpp_codec.spec

-module(xep0030).

-compile(export_all).

do_decode(<<"query">>,
          <<"http://jabber.org/protocol/disco#items">>, El,
          Opts) ->
    decode_disco_items(<<"http://jabber.org/protocol/disco#items">>,
                       Opts,
                       El);
do_decode(<<"item">>,
          <<"http://jabber.org/protocol/disco#items">>, El,
          Opts) ->
    decode_disco_item(<<"http://jabber.org/protocol/disco#items">>,
                      Opts,
                      El);
do_decode(<<"query">>,
          <<"http://jabber.org/protocol/disco#info">>, El,
          Opts) ->
    decode_disco_info(<<"http://jabber.org/protocol/disco#info">>,
                      Opts,
                      El);
do_decode(<<"feature">>,
          <<"http://jabber.org/protocol/disco#info">>, El,
          Opts) ->
    decode_disco_feature(<<"http://jabber.org/protocol/disco#info">>,
                         Opts,
                         El);
do_decode(<<"identity">>,
          <<"http://jabber.org/protocol/disco#info">>, El,
          Opts) ->
    decode_disco_identity(<<"http://jabber.org/protocol/disco#info">>,
                          Opts,
                          El);
do_decode(Name, <<>>, _, _) ->
    erlang:error({xmpp_codec, {missing_tag_xmlns, Name}});
do_decode(Name, XMLNS, _, _) ->
    erlang:error({xmpp_codec, {unknown_tag, Name, XMLNS}}).

tags() ->
    [{<<"query">>,
      <<"http://jabber.org/protocol/disco#items">>},
     {<<"item">>,
      <<"http://jabber.org/protocol/disco#items">>},
     {<<"query">>,
      <<"http://jabber.org/protocol/disco#info">>},
     {<<"feature">>,
      <<"http://jabber.org/protocol/disco#info">>},
     {<<"identity">>,
      <<"http://jabber.org/protocol/disco#info">>}].

do_encode({identity, _, _, _, _} = Identity,
          TopXMLNS) ->
    encode_disco_identity(Identity, TopXMLNS);
do_encode({disco_info, _, _, _, _} = Query, TopXMLNS) ->
    encode_disco_info(Query, TopXMLNS);
do_encode({disco_item, _, _, _} = Item, TopXMLNS) ->
    encode_disco_item(Item, TopXMLNS);
do_encode({disco_items, _, _, _} = Query, TopXMLNS) ->
    encode_disco_items(Query, TopXMLNS).

do_get_name({disco_info, _, _, _, _}) -> <<"query">>;
do_get_name({disco_item, _, _, _}) -> <<"item">>;
do_get_name({disco_items, _, _, _}) -> <<"query">>;
do_get_name({identity, _, _, _, _}) -> <<"identity">>.

do_get_ns({disco_info, _, _, _, _}) ->
    <<"http://jabber.org/protocol/disco#info">>;
do_get_ns({disco_item, _, _, _}) ->
    <<"http://jabber.org/protocol/disco#items">>;
do_get_ns({disco_items, _, _, _}) ->
    <<"http://jabber.org/protocol/disco#items">>;
do_get_ns({identity, _, _, _, _}) ->
    <<"http://jabber.org/protocol/disco#info">>.

pp(identity, 4) -> [category, type, lang, name];
pp(disco_info, 4) ->
    [node, identities, features, xdata];
pp(disco_item, 3) -> [jid, name, node];
pp(disco_items, 3) -> [node, items, rsm];
pp(_, _) -> no.

records() ->
    [{identity, 4},
     {disco_info, 4},
     {disco_item, 3},
     {disco_items, 3}].

decode_disco_items(__TopXMLNS, __Opts,
                   {xmlel, <<"query">>, _attrs, _els}) ->
    {Items, Rsm} = decode_disco_items_els(__TopXMLNS,
                                          __Opts,
                                          _els,
                                          [],
                                          undefined),
    Node = decode_disco_items_attrs(__TopXMLNS,
                                    _attrs,
                                    undefined),
    {disco_items, Node, Items, Rsm}.

decode_disco_items_els(__TopXMLNS, __Opts, [], Items,
                       Rsm) ->
    {lists:reverse(Items), Rsm};
decode_disco_items_els(__TopXMLNS, __Opts,
                       [{xmlel, <<"item">>, _attrs, _} = _el | _els], Items,
                       Rsm) ->
    case xmpp_codec:get_attr(<<"xmlns">>,
                             _attrs,
                             __TopXMLNS)
        of
        <<"http://jabber.org/protocol/disco#items">> ->
            decode_disco_items_els(__TopXMLNS,
                                   __Opts,
                                   _els,
                                   [decode_disco_item(<<"http://jabber.org/protocol/disco#items">>,
                                                      __Opts,
                                                      _el)
                                    | Items],
                                   Rsm);
        _ ->
            decode_disco_items_els(__TopXMLNS,
                                   __Opts,
                                   _els,
                                   Items,
                                   Rsm)
    end;
decode_disco_items_els(__TopXMLNS, __Opts,
                       [{xmlel, <<"set">>, _attrs, _} = _el | _els], Items,
                       Rsm) ->
    case xmpp_codec:get_attr(<<"xmlns">>,
                             _attrs,
                             __TopXMLNS)
        of
        <<"http://jabber.org/protocol/rsm">> ->
            decode_disco_items_els(__TopXMLNS,
                                   __Opts,
                                   _els,
                                   Items,
                                   xep0059:decode_rsm_set(<<"http://jabber.org/protocol/rsm">>,
                                                          __Opts,
                                                          _el));
        _ ->
            decode_disco_items_els(__TopXMLNS,
                                   __Opts,
                                   _els,
                                   Items,
                                   Rsm)
    end;
decode_disco_items_els(__TopXMLNS, __Opts, [_ | _els],
                       Items, Rsm) ->
    decode_disco_items_els(__TopXMLNS,
                           __Opts,
                           _els,
                           Items,
                           Rsm).

decode_disco_items_attrs(__TopXMLNS,
                         [{<<"node">>, _val} | _attrs], _Node) ->
    decode_disco_items_attrs(__TopXMLNS, _attrs, _val);
decode_disco_items_attrs(__TopXMLNS, [_ | _attrs],
                         Node) ->
    decode_disco_items_attrs(__TopXMLNS, _attrs, Node);
decode_disco_items_attrs(__TopXMLNS, [], Node) ->
    decode_disco_items_attr_node(__TopXMLNS, Node).

encode_disco_items({disco_items, Node, Items, Rsm},
                   __TopXMLNS) ->
    __NewTopXMLNS =
        xmpp_codec:choose_top_xmlns(<<"http://jabber.org/protocol/disco#items">>,
                                    [],
                                    __TopXMLNS),
    _els = lists:reverse('encode_disco_items_$items'(Items,
                                                     __NewTopXMLNS,
                                                     'encode_disco_items_$rsm'(Rsm,
                                                                               __NewTopXMLNS,
                                                                               []))),
    _attrs = encode_disco_items_attr_node(Node,
                                          xmpp_codec:enc_xmlns_attrs(__NewTopXMLNS,
                                                                     __TopXMLNS)),
    {xmlel, <<"query">>, _attrs, _els}.

'encode_disco_items_$items'([], __TopXMLNS, _acc) ->
    _acc;
'encode_disco_items_$items'([Items | _els], __TopXMLNS,
                            _acc) ->
    'encode_disco_items_$items'(_els,
                                __TopXMLNS,
                                [encode_disco_item(Items, __TopXMLNS) | _acc]).

'encode_disco_items_$rsm'(undefined, __TopXMLNS,
                          _acc) ->
    _acc;
'encode_disco_items_$rsm'(Rsm, __TopXMLNS, _acc) ->
    [xep0059:encode_rsm_set(Rsm, __TopXMLNS) | _acc].

decode_disco_items_attr_node(__TopXMLNS, undefined) ->
    <<>>;
decode_disco_items_attr_node(__TopXMLNS, _val) -> _val.

encode_disco_items_attr_node(<<>>, _acc) -> _acc;
encode_disco_items_attr_node(_val, _acc) ->
    [{<<"node">>, _val} | _acc].

decode_disco_item(__TopXMLNS, __Opts,
                  {xmlel, <<"item">>, _attrs, _els}) ->
    {Jid, Name, Node} = decode_disco_item_attrs(__TopXMLNS,
                                                _attrs,
                                                undefined,
                                                undefined,
                                                undefined),
    {disco_item, Jid, Name, Node}.

decode_disco_item_attrs(__TopXMLNS,
                        [{<<"jid">>, _val} | _attrs], _Jid, Name, Node) ->
    decode_disco_item_attrs(__TopXMLNS,
                            _attrs,
                            _val,
                            Name,
                            Node);
decode_disco_item_attrs(__TopXMLNS,
                        [{<<"name">>, _val} | _attrs], Jid, _Name, Node) ->
    decode_disco_item_attrs(__TopXMLNS,
                            _attrs,
                            Jid,
                            _val,
                            Node);
decode_disco_item_attrs(__TopXMLNS,
                        [{<<"node">>, _val} | _attrs], Jid, Name, _Node) ->
    decode_disco_item_attrs(__TopXMLNS,
                            _attrs,
                            Jid,
                            Name,
                            _val);
decode_disco_item_attrs(__TopXMLNS, [_ | _attrs], Jid,
                        Name, Node) ->
    decode_disco_item_attrs(__TopXMLNS,
                            _attrs,
                            Jid,
                            Name,
                            Node);
decode_disco_item_attrs(__TopXMLNS, [], Jid, Name,
                        Node) ->
    {decode_disco_item_attr_jid(__TopXMLNS, Jid),
     decode_disco_item_attr_name(__TopXMLNS, Name),
     decode_disco_item_attr_node(__TopXMLNS, Node)}.

encode_disco_item({disco_item, Jid, Name, Node},
                  __TopXMLNS) ->
    __NewTopXMLNS =
        xmpp_codec:choose_top_xmlns(<<"http://jabber.org/protocol/disco#items">>,
                                    [],
                                    __TopXMLNS),
    _els = [],
    _attrs = encode_disco_item_attr_node(Node,
                                         encode_disco_item_attr_name(Name,
                                                                     encode_disco_item_attr_jid(Jid,
                                                                                                xmpp_codec:enc_xmlns_attrs(__NewTopXMLNS,
                                                                                                                           __TopXMLNS)))),
    {xmlel, <<"item">>, _attrs, _els}.

decode_disco_item_attr_jid(__TopXMLNS, undefined) ->
    erlang:error({xmpp_codec,
                  {missing_attr, <<"jid">>, <<"item">>, __TopXMLNS}});
decode_disco_item_attr_jid(__TopXMLNS, _val) ->
    case catch jid:decode(_val) of
        {'EXIT', _} ->
            erlang:error({xmpp_codec,
                          {bad_attr_value, <<"jid">>, <<"item">>, __TopXMLNS}});
        _res -> _res
    end.

encode_disco_item_attr_jid(_val, _acc) ->
    [{<<"jid">>, jid:encode(_val)} | _acc].

decode_disco_item_attr_name(__TopXMLNS, undefined) ->
    <<>>;
decode_disco_item_attr_name(__TopXMLNS, _val) -> _val.

encode_disco_item_attr_name(<<>>, _acc) -> _acc;
encode_disco_item_attr_name(_val, _acc) ->
    [{<<"name">>, _val} | _acc].

decode_disco_item_attr_node(__TopXMLNS, undefined) ->
    <<>>;
decode_disco_item_attr_node(__TopXMLNS, _val) -> _val.

encode_disco_item_attr_node(<<>>, _acc) -> _acc;
encode_disco_item_attr_node(_val, _acc) ->
    [{<<"node">>, _val} | _acc].

decode_disco_info(__TopXMLNS, __Opts,
                  {xmlel, <<"query">>, _attrs, _els}) ->
    {Xdata, Features, Identities} =
        decode_disco_info_els(__TopXMLNS,
                              __Opts,
                              _els,
                              [],
                              [],
                              []),
    Node = decode_disco_info_attrs(__TopXMLNS,
                                   _attrs,
                                   undefined),
    {disco_info, Node, Identities, Features, Xdata}.

decode_disco_info_els(__TopXMLNS, __Opts, [], Xdata,
                      Features, Identities) ->
    {lists:reverse(Xdata),
     lists:reverse(Features),
     lists:reverse(Identities)};
decode_disco_info_els(__TopXMLNS, __Opts,
                      [{xmlel, <<"identity">>, _attrs, _} = _el | _els],
                      Xdata, Features, Identities) ->
    case xmpp_codec:get_attr(<<"xmlns">>,
                             _attrs,
                             __TopXMLNS)
        of
        <<"http://jabber.org/protocol/disco#info">> ->
            decode_disco_info_els(__TopXMLNS,
                                  __Opts,
                                  _els,
                                  Xdata,
                                  Features,
                                  [decode_disco_identity(<<"http://jabber.org/protocol/disco#info">>,
                                                         __Opts,
                                                         _el)
                                   | Identities]);
        _ ->
            decode_disco_info_els(__TopXMLNS,
                                  __Opts,
                                  _els,
                                  Xdata,
                                  Features,
                                  Identities)
    end;
decode_disco_info_els(__TopXMLNS, __Opts,
                      [{xmlel, <<"feature">>, _attrs, _} = _el | _els], Xdata,
                      Features, Identities) ->
    case xmpp_codec:get_attr(<<"xmlns">>,
                             _attrs,
                             __TopXMLNS)
        of
        <<"http://jabber.org/protocol/disco#info">> ->
            decode_disco_info_els(__TopXMLNS,
                                  __Opts,
                                  _els,
                                  Xdata,
                                  [decode_disco_feature(<<"http://jabber.org/protocol/disco#info">>,
                                                        __Opts,
                                                        _el)
                                   | Features],
                                  Identities);
        _ ->
            decode_disco_info_els(__TopXMLNS,
                                  __Opts,
                                  _els,
                                  Xdata,
                                  Features,
                                  Identities)
    end;
decode_disco_info_els(__TopXMLNS, __Opts,
                      [{xmlel, <<"x">>, _attrs, _} = _el | _els], Xdata,
                      Features, Identities) ->
    case xmpp_codec:get_attr(<<"xmlns">>,
                             _attrs,
                             __TopXMLNS)
        of
        <<"jabber:x:data">> ->
            decode_disco_info_els(__TopXMLNS,
                                  __Opts,
                                  _els,
                                  [xep0004:decode_xdata(<<"jabber:x:data">>,
                                                        __Opts,
                                                        _el)
                                   | Xdata],
                                  Features,
                                  Identities);
        _ ->
            decode_disco_info_els(__TopXMLNS,
                                  __Opts,
                                  _els,
                                  Xdata,
                                  Features,
                                  Identities)
    end;
decode_disco_info_els(__TopXMLNS, __Opts, [_ | _els],
                      Xdata, Features, Identities) ->
    decode_disco_info_els(__TopXMLNS,
                          __Opts,
                          _els,
                          Xdata,
                          Features,
                          Identities).

decode_disco_info_attrs(__TopXMLNS,
                        [{<<"node">>, _val} | _attrs], _Node) ->
    decode_disco_info_attrs(__TopXMLNS, _attrs, _val);
decode_disco_info_attrs(__TopXMLNS, [_ | _attrs],
                        Node) ->
    decode_disco_info_attrs(__TopXMLNS, _attrs, Node);
decode_disco_info_attrs(__TopXMLNS, [], Node) ->
    decode_disco_info_attr_node(__TopXMLNS, Node).

encode_disco_info({disco_info,
                   Node,
                   Identities,
                   Features,
                   Xdata},
                  __TopXMLNS) ->
    __NewTopXMLNS =
        xmpp_codec:choose_top_xmlns(<<"http://jabber.org/protocol/disco#info">>,
                                    [],
                                    __TopXMLNS),
    _els = lists:reverse('encode_disco_info_$xdata'(Xdata,
                                                    __NewTopXMLNS,
                                                    'encode_disco_info_$features'(Features,
                                                                                  __NewTopXMLNS,
                                                                                  'encode_disco_info_$identities'(Identities,
                                                                                                                  __NewTopXMLNS,
                                                                                                                  [])))),
    _attrs = encode_disco_info_attr_node(Node,
                                         xmpp_codec:enc_xmlns_attrs(__NewTopXMLNS,
                                                                    __TopXMLNS)),
    {xmlel, <<"query">>, _attrs, _els}.

'encode_disco_info_$xdata'([], __TopXMLNS, _acc) ->
    _acc;
'encode_disco_info_$xdata'([Xdata | _els], __TopXMLNS,
                           _acc) ->
    'encode_disco_info_$xdata'(_els,
                               __TopXMLNS,
                               [xep0004:encode_xdata(Xdata, __TopXMLNS)
                                | _acc]).

'encode_disco_info_$features'([], __TopXMLNS, _acc) ->
    _acc;
'encode_disco_info_$features'([Features | _els],
                              __TopXMLNS, _acc) ->
    'encode_disco_info_$features'(_els,
                                  __TopXMLNS,
                                  [encode_disco_feature(Features, __TopXMLNS)
                                   | _acc]).

'encode_disco_info_$identities'([], __TopXMLNS, _acc) ->
    _acc;
'encode_disco_info_$identities'([Identities | _els],
                                __TopXMLNS, _acc) ->
    'encode_disco_info_$identities'(_els,
                                    __TopXMLNS,
                                    [encode_disco_identity(Identities,
                                                           __TopXMLNS)
                                     | _acc]).

decode_disco_info_attr_node(__TopXMLNS, undefined) ->
    <<>>;
decode_disco_info_attr_node(__TopXMLNS, _val) -> _val.

encode_disco_info_attr_node(<<>>, _acc) -> _acc;
encode_disco_info_attr_node(_val, _acc) ->
    [{<<"node">>, _val} | _acc].

decode_disco_feature(__TopXMLNS, __Opts,
                     {xmlel, <<"feature">>, _attrs, _els}) ->
    Var = decode_disco_feature_attrs(__TopXMLNS,
                                     _attrs,
                                     undefined),
    Var.

decode_disco_feature_attrs(__TopXMLNS,
                           [{<<"var">>, _val} | _attrs], _Var) ->
    decode_disco_feature_attrs(__TopXMLNS, _attrs, _val);
decode_disco_feature_attrs(__TopXMLNS, [_ | _attrs],
                           Var) ->
    decode_disco_feature_attrs(__TopXMLNS, _attrs, Var);
decode_disco_feature_attrs(__TopXMLNS, [], Var) ->
    decode_disco_feature_attr_var(__TopXMLNS, Var).

encode_disco_feature(Var, __TopXMLNS) ->
    __NewTopXMLNS =
        xmpp_codec:choose_top_xmlns(<<"http://jabber.org/protocol/disco#info">>,
                                    [],
                                    __TopXMLNS),
    _els = [],
    _attrs = encode_disco_feature_attr_var(Var,
                                           xmpp_codec:enc_xmlns_attrs(__NewTopXMLNS,
                                                                      __TopXMLNS)),
    {xmlel, <<"feature">>, _attrs, _els}.

decode_disco_feature_attr_var(__TopXMLNS, undefined) ->
    erlang:error({xmpp_codec,
                  {missing_attr, <<"var">>, <<"feature">>, __TopXMLNS}});
decode_disco_feature_attr_var(__TopXMLNS, _val) -> _val.

encode_disco_feature_attr_var(_val, _acc) ->
    [{<<"var">>, _val} | _acc].

decode_disco_identity(__TopXMLNS, __Opts,
                      {xmlel, <<"identity">>, _attrs, _els}) ->
    {Category, Type, Lang, Name} =
        decode_disco_identity_attrs(__TopXMLNS,
                                    _attrs,
                                    undefined,
                                    undefined,
                                    undefined,
                                    undefined),
    {identity, Category, Type, Lang, Name}.

decode_disco_identity_attrs(__TopXMLNS,
                            [{<<"category">>, _val} | _attrs], _Category, Type,
                            Lang, Name) ->
    decode_disco_identity_attrs(__TopXMLNS,
                                _attrs,
                                _val,
                                Type,
                                Lang,
                                Name);
decode_disco_identity_attrs(__TopXMLNS,
                            [{<<"type">>, _val} | _attrs], Category, _Type,
                            Lang, Name) ->
    decode_disco_identity_attrs(__TopXMLNS,
                                _attrs,
                                Category,
                                _val,
                                Lang,
                                Name);
decode_disco_identity_attrs(__TopXMLNS,
                            [{<<"xml:lang">>, _val} | _attrs], Category, Type,
                            _Lang, Name) ->
    decode_disco_identity_attrs(__TopXMLNS,
                                _attrs,
                                Category,
                                Type,
                                _val,
                                Name);
decode_disco_identity_attrs(__TopXMLNS,
                            [{<<"name">>, _val} | _attrs], Category, Type, Lang,
                            _Name) ->
    decode_disco_identity_attrs(__TopXMLNS,
                                _attrs,
                                Category,
                                Type,
                                Lang,
                                _val);
decode_disco_identity_attrs(__TopXMLNS, [_ | _attrs],
                            Category, Type, Lang, Name) ->
    decode_disco_identity_attrs(__TopXMLNS,
                                _attrs,
                                Category,
                                Type,
                                Lang,
                                Name);
decode_disco_identity_attrs(__TopXMLNS, [], Category,
                            Type, Lang, Name) ->
    {decode_disco_identity_attr_category(__TopXMLNS,
                                         Category),
     decode_disco_identity_attr_type(__TopXMLNS, Type),
     'decode_disco_identity_attr_xml:lang'(__TopXMLNS, Lang),
     decode_disco_identity_attr_name(__TopXMLNS, Name)}.

encode_disco_identity({identity,
                       Category,
                       Type,
                       Lang,
                       Name},
                      __TopXMLNS) ->
    __NewTopXMLNS =
        xmpp_codec:choose_top_xmlns(<<"http://jabber.org/protocol/disco#info">>,
                                    [],
                                    __TopXMLNS),
    _els = [],
    _attrs = encode_disco_identity_attr_name(Name,
                                             'encode_disco_identity_attr_xml:lang'(Lang,
                                                                                   encode_disco_identity_attr_type(Type,
                                                                                                                   encode_disco_identity_attr_category(Category,
                                                                                                                                                       xmpp_codec:enc_xmlns_attrs(__NewTopXMLNS,
                                                                                                                                                                                  __TopXMLNS))))),
    {xmlel, <<"identity">>, _attrs, _els}.

decode_disco_identity_attr_category(__TopXMLNS,
                                    undefined) ->
    erlang:error({xmpp_codec,
                  {missing_attr,
                   <<"category">>,
                   <<"identity">>,
                   __TopXMLNS}});
decode_disco_identity_attr_category(__TopXMLNS, _val) ->
    _val.

encode_disco_identity_attr_category(_val, _acc) ->
    [{<<"category">>, _val} | _acc].

decode_disco_identity_attr_type(__TopXMLNS,
                                undefined) ->
    erlang:error({xmpp_codec,
                  {missing_attr,
                   <<"type">>,
                   <<"identity">>,
                   __TopXMLNS}});
decode_disco_identity_attr_type(__TopXMLNS, _val) ->
    _val.

encode_disco_identity_attr_type(_val, _acc) ->
    [{<<"type">>, _val} | _acc].

'decode_disco_identity_attr_xml:lang'(__TopXMLNS,
                                      undefined) ->
    <<>>;
'decode_disco_identity_attr_xml:lang'(__TopXMLNS,
                                      _val) ->
    case catch xmpp_lang:check(_val) of
        {'EXIT', _} ->
            erlang:error({xmpp_codec,
                          {bad_attr_value,
                           <<"xml:lang">>,
                           <<"identity">>,
                           __TopXMLNS}});
        _res -> _res
    end.

'encode_disco_identity_attr_xml:lang'(<<>>, _acc) ->
    _acc;
'encode_disco_identity_attr_xml:lang'(_val, _acc) ->
    [{<<"xml:lang">>, _val} | _acc].

decode_disco_identity_attr_name(__TopXMLNS,
                                undefined) ->
    <<>>;
decode_disco_identity_attr_name(__TopXMLNS, _val) ->
    _val.

encode_disco_identity_attr_name(<<>>, _acc) -> _acc;
encode_disco_identity_attr_name(_val, _acc) ->
    [{<<"name">>, _val} | _acc].