1 |
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-module(mongoose_graphql_scalar). |
2 |
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-export([input/2, output/2]). |
3 |
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-ignore_xref([input/2, output/2]). |
4 |
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5 |
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-include_lib("jid/include/jid.hrl"). |
6 |
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7 |
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-spec input(Type, Value) -> {ok, Coerced} | {error, Reason} |
8 |
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when |
9 |
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Type :: binary(), |
10 |
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Value :: binary() | pos_integer(), |
11 |
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Coerced :: any(), |
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Reason :: term(). |
13 |
117 |
input(<<"DateTime">>, DT) -> binary_to_microseconds(DT); |
14 |
27 |
input(<<"XmlElement">>, Value) -> exml:parse(Value); |
15 |
1035 |
input(<<"JID">>, Jid) -> jid_from_binary(Jid); |
16 |
453 |
input(<<"BareJID">>, Jid) -> bare_jid_from_binary(Jid); |
17 |
68 |
input(<<"FullJID">>, Jid) -> full_jid_from_binary(Jid); |
18 |
89 |
input(<<"UserName">>, User) -> user_from_binary(User); |
19 |
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input(<<"RoomName">>, Room) -> room_from_binary(Room); |
20 |
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input(<<"DomainName">>, Domain) -> domain_from_binary(Domain); |
21 |
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input(<<"ResourceName">>, Res) -> resource_from_binary(Res); |
22 |
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input(<<"NodeName">>, Node) -> node_from_binary(Node); |
23 |
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input(<<"NonEmptyString">>, Value) -> non_empty_string_to_binary(Value); |
24 |
153 |
input(<<"PosInt">>, Value) -> validate_pos_integer(Value); |
25 |
5 |
input(<<"NonNegInt">>, Value) -> validate_non_neg_integer(Value); |
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input(Ty, V) -> |
27 |
:-( |
error_logger:info_report({coercing_generic_scalar, Ty, V}), |
28 |
:-( |
{ok, V}. |
29 |
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30 |
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-spec output(Type, Value) -> {ok, Coerced} | {error, Reason} |
31 |
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when |
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Type :: binary(), |
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Value :: binary() | pos_integer(), |
34 |
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Coerced :: any(), |
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Reason :: term(). |
36 |
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output(<<"DateTime">>, DT) -> {ok, microseconds_to_binary(DT)}; |
37 |
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output(<<"XmlElement">>, Elem) -> {ok, exml:to_binary(Elem)}; |
38 |
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output(<<"JID">>, Jid) -> {ok, jid:to_binary(Jid)}; |
39 |
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output(<<"UserName">>, User) -> {ok, User}; |
40 |
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output(<<"DomainName">>, Domain) -> {ok, Domain}; |
41 |
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output(<<"ResourceName">>, Res) -> {ok, Res}; |
42 |
:-( |
output(<<"NonEmptyString">>, Value) -> binary_to_non_empty_string(Value); |
43 |
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output(<<"PosInt">>, Value) -> validate_pos_integer(Value); |
44 |
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output(<<"NonNegInt">>, Value) -> validate_non_neg_integer(Value); |
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output(Ty, V) -> |
46 |
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error_logger:info_report({output_generic_scalar, Ty, V}), |
47 |
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{ok, V}. |
48 |
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49 |
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jid_from_binary(Value) -> |
50 |
1035 |
case jid:from_binary(Value) of |
51 |
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error -> |
52 |
19 |
{error, failed_to_parse_jid}; |
53 |
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#jid{luser = <<>>} -> |
54 |
4 |
{error, jid_without_local_part}; |
55 |
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Jid -> |
56 |
1012 |
{ok, Jid} |
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end. |
58 |
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59 |
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bare_jid_from_binary(Value) -> |
60 |
453 |
case jid:from_binary(Value) of |
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error -> |
62 |
3 |
{error, failed_to_parse_jid}; |
63 |
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#jid{luser = <<>>} -> |
64 |
2 |
{error, jid_without_local_part}; |
65 |
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Jid = #jid{lresource = <<>>} -> |
66 |
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{ok, Jid}; |
67 |
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#jid{} -> |
68 |
3 |
{error, jid_with_resource} |
69 |
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end. |
70 |
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71 |
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full_jid_from_binary(Value) -> |
72 |
68 |
case jid:from_binary(Value) of |
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error -> |
74 |
:-( |
{error, failed_to_parse_jid}; |
75 |
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#jid{luser = <<>>} -> |
76 |
:-( |
{error, jid_without_local_part}; |
77 |
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#jid{lresource = <<>>} -> |
78 |
15 |
{error, jid_without_resource}; |
79 |
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Jid -> |
80 |
53 |
{ok, Jid} |
81 |
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end. |
82 |
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83 |
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user_from_binary(<<>>) -> |
84 |
3 |
{error, empty_user_name}; |
85 |
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user_from_binary(Value) -> |
86 |
86 |
case jid:nodeprep(Value) of |
87 |
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error -> |
88 |
3 |
{error, failed_to_parse_user_name}; |
89 |
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User -> |
90 |
83 |
{ok, User} |
91 |
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end. |
92 |
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93 |
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room_from_binary(<<>>) -> |
94 |
1 |
{error, empty_room_name}; |
95 |
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room_from_binary(Value) -> |
96 |
22 |
case jid:nodeprep(Value) of |
97 |
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error -> |
98 |
:-( |
{error, failed_to_parse_room_name}; |
99 |
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Room -> |
100 |
22 |
{ok, Room} |
101 |
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end. |
102 |
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103 |
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domain_from_binary(<<>>) -> |
104 |
2 |
{error, empty_domain_name}; |
105 |
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domain_from_binary(Value) -> |
106 |
437 |
case jid:nameprep(Value) of |
107 |
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error -> |
108 |
2 |
{error, failed_to_parse_domain_name}; |
109 |
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Domain -> |
110 |
435 |
{ok, Domain} |
111 |
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end. |
112 |
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113 |
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resource_from_binary(<<>>) -> |
114 |
7 |
{error, empty_resource_name}; |
115 |
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resource_from_binary(Value) -> |
116 |
125 |
case jid:resourceprep(Value) of |
117 |
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error -> |
118 |
1 |
{error, failed_to_parse_resource_name}; |
119 |
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Res -> |
120 |
124 |
{ok, Res} |
121 |
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end. |
122 |
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123 |
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node_from_binary(<<>>) -> |
124 |
4 |
{error, empty_node_name}; |
125 |
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node_from_binary(NodeName) -> |
126 |
27 |
case string:lexemes(binary_to_list(NodeName), "@") of |
127 |
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[_Name, _Host] -> |
128 |
21 |
{ok, binary_to_atom(NodeName)}; |
129 |
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["self"] -> |
130 |
2 |
{ok, node()}; |
131 |
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_ -> |
132 |
4 |
{error, incorrect_node_name} |
133 |
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end. |
134 |
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135 |
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binary_to_microseconds(DT) -> |
136 |
117 |
case mod_mam_utils:maybe_microseconds(DT) of |
137 |
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undefined -> |
138 |
12 |
{error, failed_to_parse_datetime}; |
139 |
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Microseconds -> |
140 |
105 |
{ok, Microseconds} |
141 |
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end. |
142 |
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143 |
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non_empty_string_to_binary(<<>>) -> |
144 |
7 |
{error, "Given string is empty"}; |
145 |
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non_empty_string_to_binary(String) -> |
146 |
93 |
{ok, String}. |
147 |
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148 |
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binary_to_non_empty_string(<<>>) -> |
149 |
:-( |
{error, "Empty binary cannot be converted to NonEmptyString"}; |
150 |
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binary_to_non_empty_string(Val) -> |
151 |
:-( |
{ok, Val}. |
152 |
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153 |
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validate_pos_integer(PosInt) when is_integer(PosInt), PosInt > 0 -> |
154 |
145 |
{ok, PosInt}; |
155 |
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validate_pos_integer(_Value) -> |
156 |
16 |
{error, "Value is not a positive integer"}. |
157 |
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158 |
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validate_non_neg_integer(NonNegInt) when is_integer(NonNegInt), NonNegInt >= 0 -> |
159 |
86 |
{ok, NonNegInt}; |
160 |
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validate_non_neg_integer(_Value) -> |
161 |
2 |
{error, "Value is not a non-negative integer"}. |
162 |
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163 |
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microseconds_to_binary(Microseconds) -> |
164 |
114 |
Opts = [{offset, "Z"}, {unit, microsecond}], |
165 |
114 |
list_to_binary(calendar:system_time_to_rfc3339(Microseconds, Opts)). |