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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_packet_ok). |
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-feature(maybe_expr, enable). |
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-export([decode/1]). |
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-import(scran_bytes, [tag/1]). |
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-import(scran_combinator, [condition/2]). |
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-import(scran_combinator, [condition/3]). |
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-import(scran_combinator, [value/2]). |
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-import(scran_result, [into_map/1]). |
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-import(scran_result, [kv/2]). |
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-import(scran_sequence, [combined_with/2]). |
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-import(scran_sequence, [sequence/1]). |
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-include_lib("kernel/include/logger.hrl"). |
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decode(ClientFlags) -> |
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fun |
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(Input) -> |
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?LOG_DEBUG(#{client_flags => ClientFlags, input => Input}), |
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(combined_with( |
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into_map( |
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sequence( |
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[kv(action, value(ok, tag(<<16#00>>))), |
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kv(affected_rows, msmp_integer_variable:decode()), |
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kv(last_insert_id, msmp_integer_variable:decode()), |
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condition( |
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fun |
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() -> |
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maps:get(protocol_41, ClientFlags) |
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end, |
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sequence( |
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[kv(status_flags, msmp_server_status:decode()), |
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kv(warnings, msmp_integer_fixed:decode(1))]), |
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condition( |
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maps:get(transactions, ClientFlags), |
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kv(status_flags, msmp_server_status:decode())))])), |
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fun |
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(#{status_flags := #{session_state_changed := StateChanged}}) -> |
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into_map( |
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sequence( |
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[condition( |
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fun |
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() -> |
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maps:get(session_track, ClientFlags) |
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end, |
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sequence( |
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[kv(info, msmp_string_length_encoded:decode()), |
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condition( |
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StateChanged, |
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kv(session_state_info, msmp_string_length_encoded:decode()))]), |
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sequence( |
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[kv(info, msmp_string_rest_of_packet:decode())]))])) |
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end))(Input) |
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end. |