git forge of mine

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173


/*  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);
    };
  }
}
InfiniTime.git
