A ton of things

lib/fetchOTA/fetchOTA.cpp

@@ -0,0 +1,76 @@
+#ifndef UNIT_TEST
+#include <fetchOTA.h>
+
+
+#include "Arduino.h"
+#include <ArduinoJson.h>
+#include <HTTPClient.h>
+
+#include <vector>
+
+
+OTA::OTA(String server_url, String currentVersion, String currentDeviceConfiguration) {
+    _serverUrl = server_url;
+    _currentVersion = parseVersion(currentVersion.c_str());
+    _current_device_configuration = currentDeviceConfiguration;
+}
+
+
+Firmware OTA::getLatestVersionOnServer() {
+    HTTPClient http;
+    http.begin(_serverUrl);
+    int httpCode = http.GET();
+
+    if (httpCode != 200) {
+        return createErrorResponse("HTTP GET request failed with code " + String(httpCode));
+    }
+
+    String payload = http.getString();
+    DynamicJsonDocument doc(4096);
+    DeserializationError error = deserializeJson(doc, payload);
+
+    if (error) {
+        return createErrorResponse("Failed to deserialize JSON");
+    }
+
+    if (!doc.containsKey("Configurations")) {
+        return createErrorResponse("JSON response does not contain a 'Configurations' key");
+    }
+
+    std::vector<Configuration> configs;
+    for (JsonObject config : doc["Configurations"].as<JsonArray>()) {
+        if (config.containsKey("Version") && config.containsKey("URL")) {
+            configs.push_back(Configuration{
+                parseVersion(config["Version"]),
+                config["URL"],
+                config["Board"],
+                config["Configuration"]
+            });
+        }
+    }
+
+    if (configs.empty()) {
+        return createErrorResponse("No valid configuration found in the JSON response");
+    }
+
+    Configuration latest = getLatestConfiguration(configs.data(), configs.size());
+    return Firmware{
+        latest.version,
+        latest.url,
+        true,
+        ""
+    };
+}
+
+Firmware OTA::createErrorResponse(const String& errorMsg) {
+    return Firmware{
+        Version{0, 0, 0},
+        "",
+        false,
+        errorMsg
+    };
+}
+
+
+
+#endif