💫 Initial plans for device configuration service

2024-05-30 22:10:11 +02:00
parent 83a9007b51
commit d1567fa2dd
17 changed files with 15236 additions and 14556 deletions
@@ -0,0 +1,109 @@
+#pragma once
+
+#include <EventEndpoint.h>
+#include <FSPersistence.h>
+#include <HttpEndpoint.h>
+#include <SecurityManager.h>
+#include <StatefulService.h>
+
+#include <SPI.h>
+#include <Wire.h>
+
+#define DEVICE_CONFIG_FILE "/config/deviceConfig.json"
+#define EVENT_CONFIGURATION_SETTINGS "ConfigurationSettings"
+#define CONFIGURATION_SETTINGS_PATH "/api/configuration"
+
+/*
+ * OLED Settings
+ */
+#define SCREEN_WIDTH 128
+#define SCREEN_HEIGHT 64
+#define SCREEN_RESET -1
+
+/*
+ * I2C software connection 
+ */
+#define SDA 14
+#define SCL 15
+
+/*
+ * Ultra sonic sensors
+ */
+#define USS_LEFT 12
+#define USS_RIGHT 13
+#define USS_MAX_DISTANCE 200
+
+class PinConfig {
+public:
+    int pin;
+    String mode;
+    String type;
+    String role;
+
+    PinConfig(int p, String m, String t, String r) : pin(p), mode(m), type(t), role(r) {}
+};
+
+class DeviceConfiguration {
+   public:
+    int sda = SDA;
+    int scl = SCL;
+    std::vector<PinConfig> pins;
+
+    static void read(DeviceConfiguration &settings, JsonObject &root) {
+        root["sda"] = settings.sda;
+        root["scl"] = settings.scl;
+    }
+
+    static StateUpdateResult update(JsonObject &root, DeviceConfiguration &settings) {
+        settings.sda = root["sda"] | SDA;
+        settings.scl = root["scl"] | SCL;
+        return StateUpdateResult::CHANGED;
+    };
+};
+
+class DeviceConfigurationService : public StatefulService<DeviceConfiguration> {
+   public:
+    DeviceConfigurationService(PsychicHttpServer *server, FS *fs,
+                               SecurityManager *securityManager,
+                               EventSocket *socket)
+        : _server(server),
+          _securityManager(securityManager),
+          _httpEndpoint(DeviceConfiguration::read, DeviceConfiguration::update,
+                        this, server, CONFIGURATION_SETTINGS_PATH,
+                        securityManager, AuthenticationPredicates::IS_ADMIN),
+          _eventEndpoint(DeviceConfiguration::read, DeviceConfiguration::update,
+                         this, socket, EVENT_CONFIGURATION_SETTINGS),
+          _fsPersistence(DeviceConfiguration::read, DeviceConfiguration::update,
+                         this, fs, DEVICE_CONFIG_FILE)
+                         {
+                            addUpdateHandler([&](const String &originId) { updatePins(); },
+                         false);
+                         };
+
+    void begin() {
+        _httpEndpoint.begin();
+        _eventEndpoint.begin();
+        _fsPersistence.readFromFS();
+        updatePins();
+    };
+
+    void updatePins() {
+        if (i2c_active){
+            Wire.end();
+        }
+
+        if (_state.sda != -1 && _state.scl != -1) {
+            Wire.begin(_state.sda, _state.scl);
+            i2c_active = true;
+        }
+    }
+
+   private:
+    PsychicHttpServer *_server;
+    SecurityManager *_securityManager;
+    HttpEndpoint<DeviceConfiguration> _httpEndpoint;
+    EventEndpoint<DeviceConfiguration> _eventEndpoint;
+    FSPersistence<DeviceConfiguration> _fsPersistence;
+
+    bool i2c_active = false;
+};