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/* Copyright (C) 2021 Avamander
This file is part of InfiniTime.
InfiniTime is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
InfiniTime is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <qcbor/qcbor_spiffy_decode.h>
#include "WeatherService.h"
#include "libs/QCBOR/inc/qcbor/qcbor.h"
#include "systemtask/SystemTask.h"
int WeatherCallback(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt* ctxt, void* arg) {
return static_cast<Pinetime::Controllers::WeatherService*>(arg)->OnCommand(conn_handle, attr_handle, ctxt);
}
namespace Pinetime {
namespace Controllers {
WeatherService::WeatherService(System::SystemTask& system, DateTime& dateTimeController)
: system(system), dateTimeController(dateTimeController) {
}
void WeatherService::Init() {
uint8_t res = 0;
res = ble_gatts_count_cfg(serviceDefinition);
ASSERT(res == 0)
res = ble_gatts_add_svcs(serviceDefinition);
ASSERT(res == 0);
}
int WeatherService::OnCommand(uint16_t conn_handle, uint16_t attr_handle, struct ble_gatt_access_ctxt* ctxt) {
if (ctxt->op == BLE_GATT_ACCESS_OP_WRITE_CHR) {
getCurrentPressure();
tidyTimeline();
getTimelineLength();
const auto packetLen = OS_MBUF_PKTLEN(ctxt->om);
if (packetLen <= 0) {
return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
}
// Decode
QCBORDecodeContext decodeContext;
UsefulBufC EncodedCBOR;
// TODO: Check uninit fine
QCBORDecode_Init(&decodeContext, EncodedCBOR, QCBOR_DECODE_MODE_NORMAL);
QCBORDecode_EnterMap(&decodeContext, nullptr);
WeatherData::timelineheader timelineHeader {};
// Always encodes to the smallest number of bytes based on the value
QCBORDecode_GetInt64InMapSZ(&decodeContext, "Timestamp", reinterpret_cast<int64_t*>(&(timelineHeader.timestamp)));
QCBORDecode_GetInt64InMapSZ(&decodeContext, "Expires", reinterpret_cast<int64_t*>(&(timelineHeader.expires)));
QCBORDecode_GetInt64InMapSZ(&decodeContext, "EventType", reinterpret_cast<int64_t*>(&(timelineHeader.eventType)));
switch (timelineHeader.eventType) {
// TODO: Populate
case WeatherData::eventtype::AirQuality: {
break;
}
case WeatherData::eventtype::Obscuration: {
break;
}
case WeatherData::eventtype::Precipitation: {
break;
}
case WeatherData::eventtype::Wind: {
break;
}
case WeatherData::eventtype::Temperature: {
break;
}
case WeatherData::eventtype::Special: {
break;
}
case WeatherData::eventtype::Pressure: {
break;
}
case WeatherData::eventtype::Location: {
break;
}
case WeatherData::eventtype::Clouds: {
break;
}
default: {
break;
}
}
QCBORDecode_ExitMap(&decodeContext);
auto uErr = QCBORDecode_Finish(&decodeContext);
if (uErr != 0) {
return BLE_ATT_ERR_INSUFFICIENT_RES;
}
} else if (ctxt->op == BLE_GATT_ACCESS_OP_READ_CHR) {
// TODO: Detect control messages
// Encode
uint8_t buffer[64];
QCBOREncodeContext encodeContext;
QCBOREncode_Init(&encodeContext, UsefulBuf_FROM_BYTE_ARRAY(buffer));
QCBOREncode_OpenMap(&encodeContext);
QCBOREncode_AddTextToMap(&encodeContext, "test", UsefulBuf_FROM_SZ_LITERAL("test"));
QCBOREncode_AddInt64ToMap(&encodeContext, "test", 1ul);
QCBOREncode_CloseMap(&encodeContext);
UsefulBufC encodedEvent;
auto uErr = QCBOREncode_Finish(&encodeContext, &encodedEvent);
if (uErr != 0) {
return BLE_ATT_ERR_INSUFFICIENT_RES;
}
auto res = os_mbuf_append(ctxt->om, &buffer, sizeof(buffer));
if (res == 0) {
return BLE_ATT_ERR_INSUFFICIENT_RES;
}
return 0;
}
return 0;
}
WeatherData::location WeatherService::getCurrentLocation() const {
return WeatherData::location();
}
WeatherData::clouds WeatherService::getCurrentClouds() const {
return WeatherData::clouds();
}
WeatherData::obscuration WeatherService::getCurrentObscuration() const {
return WeatherData::obscuration();
}
WeatherData::precipitation WeatherService::getCurrentPrecipitation() const {
return WeatherData::precipitation();
}
WeatherData::wind WeatherService::getCurrentWind() const {
return WeatherData::wind();
}
WeatherData::temperature WeatherService::getCurrentTemperature() const {
return WeatherData::temperature();
}
WeatherData::humidity WeatherService::getCurrentHumidity() const {
return WeatherData::humidity();
}
WeatherData::pressure WeatherService::getCurrentPressure() const {
uint64_t currentTimestamp = getCurrentUNIXTimestamp();
for (auto&& header : timeline) {
if (header->eventType == WeatherData::eventtype::Pressure && header->timestamp + header->expires <= currentTimestamp) {
return WeatherData::pressure();
}
}
return WeatherData::pressure();
}
WeatherData::airquality WeatherService::getCurrentQuality() const {
return WeatherData::airquality();
}
size_t WeatherService::getTimelineLength() const {
return timeline.size();
}
bool WeatherService::addEventToTimeline(std::unique_ptr<WeatherData::timelineheader> event) {
if (timeline.size() == timeline.max_size()) {
return false;
}
timeline.push_back(std::move(event));
return true;
}
bool WeatherService::hasTimelineEventOfType(const WeatherData::eventtype type) const {
uint64_t currentTimestamp = getCurrentUNIXTimestamp();
for (auto&& header : timeline) {
if (header->eventType == type && header->timestamp + header->expires <= currentTimestamp) {
// TODO: Check if its currently valid
return true;
}
}
return false;
}
void WeatherService::tidyTimeline() {
uint64_t timeCurrent = 0;
timeline.erase(std::remove_if(std::begin(timeline),
std::end(timeline),
[&](std::unique_ptr<WeatherData::timelineheader> const& header) {
return header->timestamp + header->expires > timeCurrent;
}),
std::end(timeline));
std::sort(std::begin(timeline), std::end(timeline), compareTimelineEvents);
}
bool WeatherService::compareTimelineEvents(const std::unique_ptr<WeatherData::timelineheader>& first,
const std::unique_ptr<WeatherData::timelineheader>& second) {
return first->timestamp > second->timestamp;
}
uint64_t WeatherService::getCurrentUNIXTimestamp() const {
return std::chrono::duration_cast<std::chrono::seconds>(dateTimeController.CurrentDateTime().time_since_epoch()).count();
}
}
}
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