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Simple Weather Service

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Store temperatures as int16_t (instead of uint8_t previously). The temperature is expressed in °C * 100.
This commit is contained in:
Jean-François Milants
2023-12-23 17:18:41 +01:00
committed by JF
parent ad090ab188
commit e5b73212f6
4 changed files with 53 additions and 38 deletions
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31
src/components/ble/SimpleWeatherService.cpp
View File

@@ -29,18 +29,30 @@ namespace {
enum class MessageType : uint8_t { CurrentWeather, Forecast, Unknown };
uint64_t ToUInt64(const uint8_t* data) {
return *(reinterpret_cast<const uint64_t*>(data));
return data[0] +
(data[1] << 8) +
(data[2] << 16) +
(data[3] << 24) +
(static_cast<uint64_t>(data[4]) << 32) +
(static_cast<uint64_t>(data[5]) << 48) +
(static_cast<uint64_t>(data[6]) << 48) +
(static_cast<uint64_t>(data[7]) << 56);
}
int16_t ToInt16(const uint8_t* data) {
return data[0] +
(data[1] << 8);
}
SimpleWeatherService::CurrentWeather CreateCurrentWeather(const uint8_t* dataBuffer) {
SimpleWeatherService::Location cityName;
std::memcpy(cityName.data(), &dataBuffer[13], 32);
std::memcpy(cityName.data(), &dataBuffer[16], 32);
cityName[32] = '\0';
return SimpleWeatherService::CurrentWeather (ToUInt64(&dataBuffer[2]),
dataBuffer[10],
dataBuffer[11],
dataBuffer[12],
SimpleWeatherService::Icons{dataBuffer[13 + 32]},
ToInt16(&dataBuffer[10]),
ToInt16(&dataBuffer[12]),
ToInt16(&dataBuffer[14]),
SimpleWeatherService::Icons{dataBuffer[16 + 32]},
std::move(cityName));
}
@@ -51,7 +63,10 @@ namespace {
const uint8_t nbDaysInBuffer = dataBuffer[10];
const uint8_t nbDays = std::min(SimpleWeatherService::MaxNbForecastDays, nbDaysInBuffer);
for (int i = 0; i < nbDays; i++) {
days[i] = SimpleWeatherService::Forecast::Day {dataBuffer[11 + (i * 3)], dataBuffer[12 + (i * 3)], SimpleWeatherService::Icons{dataBuffer[13 + (i * 3)]}};
days[i] = SimpleWeatherService::Forecast::Day {
ToInt16(&dataBuffer[11 + (i * 5)]),
ToInt16(&dataBuffer[13 + (i * 5)]),
SimpleWeatherService::Icons{dataBuffer[15 + (i * 5)]}};
}
return SimpleWeatherService::Forecast {timestamp, nbDays, days};
}
@@ -95,7 +110,7 @@ int SimpleWeatherService::OnCommand(struct ble_gatt_access_ctxt* ctxt) {
currentWeather->minTemperature,
currentWeather->maxTemperature,
currentWeather->iconId,
currentWeather->location);
currentWeather->location.data());
}
break;
case MessageType::Forecast:

16
src/components/ble/SimpleWeatherService.h
View File

@@ -64,9 +64,9 @@ namespace Pinetime {
using Location = std::array<char, 33>; // 32 char + \0 (end of string)
struct CurrentWeather {
CurrentWeather(uint64_t timestamp,
uint8_t temperature,
uint8_t minTemperature,
uint8_t maxTemperature,
int16_t temperature,
int16_t minTemperature,
int16_t maxTemperature,
Icons iconId,
Location&& location)
: timestamp {timestamp},
@@ -78,9 +78,9 @@ namespace Pinetime {
}
uint64_t timestamp;
uint8_t temperature;
uint8_t minTemperature;
uint8_t maxTemperature;
int16_t temperature;
int16_t minTemperature;
int16_t maxTemperature;
Icons iconId;
Location location;
@@ -92,8 +92,8 @@ namespace Pinetime {
uint8_t nbDays;
struct Day {
uint8_t minTemperature;
uint8_t maxTemperature;
int16_t minTemperature;
int16_t maxTemperature;
Icons iconId;
};