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%% Copyright (c) 2023 Peter Morgan <peter.james.morgan@gmail.com> |
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%% |
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%% Licensed under the Apache License, Version 2.0 (the "License"); |
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%% you may not use this file except in compliance with the License. |
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%% You may obtain a copy of the License at |
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%% |
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%% http://www.apache.org/licenses/LICENSE-2.0 |
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%% |
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%% Unless required by applicable law or agreed to in writing, software |
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%% distributed under the License is distributed on an "AS IS" BASIS, |
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%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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%% See the License for the specific language governing permissions and |
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%% limitations under the License. |
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-module(msmp_com_query). |
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-feature(maybe_expr, enable). |
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-export([decode/1]). |
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-export([encode/1]). |
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decode(ClientFlags) -> |
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4 |
fun |
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(Input) -> |
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13 |
(scran_result:into_map( |
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scran_sequence:sequence( |
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[scran_result:kv( |
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action, |
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scran_combinator:value( |
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com_query, |
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scran_bytes:tag(command()))), |
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scran_combinator:condition( |
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fun |
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() -> |
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maps:get(query_attributes, ClientFlags) |
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end, |
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scran_sequence:sequence( |
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[scran_result:kv( |
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parameter_count, |
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msmp_integer_fixed:decode(1)), |
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scran_branch:alt( |
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[scran_sequence:sequence( |
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[scran_combinator:ignore_result( |
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scran_combinator:peek( |
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scran_bytes:tag(<<1:8>>))), |
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scran_result:kv( |
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parameter_set, |
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msmp_integer_fixed:decode(1)), |
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scran_result:kv( |
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query, |
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scran_combinator:rest())]), |
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scran_sequence:sequence( |
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[scran_result:kv( |
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parameter_set, |
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msmp_integer_fixed:decode(1)), |
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scran_result:kv( |
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unknown_uint4, |
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msmp_integer_fixed:decode(4)), |
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scran_result:kv( |
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query, |
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msmp_string_length_encoded:decode()), |
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scran_result:kv( |
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rest, |
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scran_combinator:rest())])])]), |
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scran_sequence:sequence( |
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[scran_result:kv( |
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query, |
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scran_combinator:rest())]))])))(Input) |
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end. |
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encode(#{query_attributes := QueryAttributes}) -> |
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:-( |
fun |
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(Decoded) -> |
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:-( |
(narcs_sequence:sequence( |
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[narcs_bytes:tag(command()), |
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narcs_combinator:condition( |
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QueryAttributes, |
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narcs_sequence:sequence( |
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[narcs_combinator:v( |
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parameter_count, |
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msmp_integer_fixed:encode(1)), |
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narcs_combinator:v( |
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parameter_set, |
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msmp_integer_fixed:encode(1))])), |
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narcs_combinator:v( |
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query, |
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narcs_combinator:rest())]))(Decoded) |
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end. |
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command() -> |
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<<3>>. |