diff options
Diffstat (limited to 'src/components/ble/weather/WeatherService.h')
| -rw-r--r-- | src/components/ble/weather/WeatherService.h | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/src/components/ble/weather/WeatherService.h b/src/components/ble/weather/WeatherService.h new file mode 100644 index 00000000..eca70cbd --- /dev/null +++ b/src/components/ble/weather/WeatherService.h @@ -0,0 +1,172 @@ +/* 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/>. +*/ +#pragma once + +#include <cstdint> +#include <string> +#include <vector> +#include <memory> + +#define min // workaround: nimble's min/max macros conflict with libstdc++ +#define max +#include <host/ble_gap.h> +#include <host/ble_uuid.h> +#undef max +#undef min + +#include "WeatherData.h" +#include "libs/QCBOR/inc/qcbor/qcbor.h" +#include "components/datetime/DateTimeController.h" + +int WeatherCallback(uint16_t connHandle, uint16_t attrHandle, struct ble_gatt_access_ctxt* ctxt, void* arg); + +namespace Pinetime { + namespace System { + class SystemTask; + } + namespace Controllers { + + class WeatherService { + public: + explicit WeatherService(System::SystemTask& system, DateTime& dateTimeController); + + void Init(); + + int OnCommand(uint16_t connHandle, uint16_t attrHandle, struct ble_gatt_access_ctxt* ctxt); + + /* + * Helper functions for quick access to currently valid data + */ + std::unique_ptr<WeatherData::Location>& GetCurrentLocation(); + std::unique_ptr<WeatherData::Clouds>& GetCurrentClouds(); + std::unique_ptr<WeatherData::Obscuration>& GetCurrentObscuration(); + std::unique_ptr<WeatherData::Precipitation>& GetCurrentPrecipitation(); + std::unique_ptr<WeatherData::Wind>& GetCurrentWind(); + std::unique_ptr<WeatherData::Temperature>& GetCurrentTemperature(); + std::unique_ptr<WeatherData::Humidity>& GetCurrentHumidity(); + std::unique_ptr<WeatherData::Pressure>& GetCurrentPressure(); + std::unique_ptr<WeatherData::AirQuality>& GetCurrentQuality(); + + /** + * Searches for the current day's maximum temperature + * @return -32768 if there's no data, degrees Celsius times 100 otherwise + */ + int16_t GetTodayMaxTemp() const; + /** + * Searches for the current day's minimum temperature + * @return -32768 if there's no data, degrees Celsius times 100 otherwise + */ + int16_t GetTodayMinTemp() const; + + /* + * Management functions + */ + /** + * Adds an event to the timeline + * @return + */ + bool AddEventToTimeline(std::unique_ptr<WeatherData::TimelineHeader> event); + /** + * Gets the current timeline length + */ + size_t GetTimelineLength() const; + /** + * Checks if an event of a certain type exists in the timeline + */ + bool HasTimelineEventOfType(WeatherData::eventtype type) const; + + private: + // 00040000-78fc-48fe-8e23-433b3a1942d0 + static constexpr ble_uuid128_t BaseUuid() { + return CharUuid(0x00, 0x00); + } + + // 0004yyxx-78fc-48fe-8e23-433b3a1942d0 + static constexpr ble_uuid128_t CharUuid(uint8_t x, uint8_t y) { + return ble_uuid128_t {.u = {.type = BLE_UUID_TYPE_128}, + .value = {0xd0, 0x42, 0x19, 0x3a, 0x3b, 0x43, 0x23, 0x8e, 0xfe, 0x48, 0xfc, 0x78, y, x, 0x04, 0x00}}; + } + + ble_uuid128_t weatherUuid {BaseUuid()}; + + /** + * Just write timeline data here. + * + * See {@link WeatherData.h} for more information. + */ + ble_uuid128_t weatherDataCharUuid {CharUuid(0x00, 0x01)}; + /** + * This doesn't take timeline data, provides some control over it. + * + * NOTE: Currently not supported. Companion app implementer feedback required. + * There's very little point in solidifying an API before we know the needs. + */ + ble_uuid128_t weatherControlCharUuid {CharUuid(0x00, 0x02)}; + + const struct ble_gatt_chr_def characteristicDefinition[3] = { + {.uuid = &weatherDataCharUuid.u, + .access_cb = WeatherCallback, + .arg = this, + .flags = BLE_GATT_CHR_F_WRITE, + .val_handle = &eventHandle}, + {.uuid = &weatherControlCharUuid.u, .access_cb = WeatherCallback, .arg = this, .flags = BLE_GATT_CHR_F_WRITE | BLE_GATT_CHR_F_READ}, + {nullptr}}; + const struct ble_gatt_svc_def serviceDefinition[2] = { + {.type = BLE_GATT_SVC_TYPE_PRIMARY, .uuid = &weatherUuid.u, .characteristics = characteristicDefinition}, {0}}; + + uint16_t eventHandle {}; + + Pinetime::System::SystemTask& system; + Pinetime::Controllers::DateTime& dateTimeController; + + std::vector<std::unique_ptr<WeatherData::TimelineHeader>> timeline; + std::unique_ptr<WeatherData::TimelineHeader> nullTimelineheader = std::make_unique<WeatherData::TimelineHeader>(); + std::unique_ptr<WeatherData::TimelineHeader>* nullHeader; + + /** + * Cleans up the timeline of expired events + */ + void TidyTimeline(); + + /** + * Compares two timeline events + */ + static bool CompareTimelineEvents(const std::unique_ptr<WeatherData::TimelineHeader>& first, + const std::unique_ptr<WeatherData::TimelineHeader>& second); + + /** + * Returns current UNIX timestamp + */ + uint64_t GetCurrentUnixTimestamp() const; + + /** + * Checks if the event hasn't gone past and expired + * + * @param header timeline event to check + * @param currentTimestamp what's the time right now + * @return if the event is valid + */ + static bool IsEventStillValid(const std::unique_ptr<WeatherData::TimelineHeader>& uniquePtr, const uint64_t timestamp); + + /** + * This is a helper function that closes a QCBOR map and decoding context cleanly + */ + void CleanUpQcbor(QCBORDecodeContext* decodeContext); + }; + } +} |