codex init

OpticalChannelTester/SettingsStore.cpp

@@ -0,0 +1,45 @@
+#include "SettingsStore.h"
+#include "Config.h"
+#include <Preferences.h>
+
+namespace { constexpr uint16_t SETTINGS_VERSION = 1; constexpr char NAMESPACE[] = "opt-test"; }
+
+void SettingsStore::defaults(Settings &s) const {
+  s = {SETTINGS_VERSION, static_cast<uint8_t>(Role::SOLO), 0, 4, 1, 2, 3, 2, 2, 0};
+  s.checksum = settingsChecksum(s);
+}
+
+bool SettingsStore::valid(const Settings &s) const {
+  return s.version == SETTINGS_VERSION && s.role <= static_cast<uint8_t>(Role::SLAVE) &&
+    s.startIndex < countOf(START_FREQ_OPTIONS_HZ) && s.endIndex < countOf(END_FREQ_OPTIONS_HZ) &&
+    s.stepIndex < countOf(STEP_OPTIONS_HZ) && s.accuracyIndex < countOf(ACCURACY_OPTIONS_PCT) &&
+    s.timeIndex < countOf(TEST_TIME_OPTIONS_MS) && s.repeatIndex < countOf(REPEAT_OPTIONS) &&
+    s.dutyIndex < countOf(DUTY_OPTIONS_PCT) && s.checksum == settingsChecksum(s) &&
+    END_FREQ_OPTIONS_HZ[s.endIndex] > START_FREQ_OPTIONS_HZ[s.startIndex];
+}
+
+bool SettingsStore::load(Settings &s) {
+  Preferences prefs;
+  if (!prefs.begin(NAMESPACE, true)) { defaults(s); return false; }
+  const size_t got = prefs.getBytes("settings", &s, sizeof(s));
+  prefs.end();
+  if (got != sizeof(s) || !valid(s)) { defaults(s); return false; }
+  return true;
+}
+
+bool SettingsStore::save(Settings &s) {
+  s.version = SETTINGS_VERSION; s.checksum = settingsChecksum(s);
+  if (!valid(s)) return false;
+  Preferences prefs;
+  if (!prefs.begin(NAMESPACE, false)) return false;
+  const bool ok = prefs.putBytes("settings", &s, sizeof(s)) == sizeof(s);
+  prefs.end(); return ok;
+}
+
+TestParams SettingsStore::params(const Settings &s) const {
+  return {START_FREQ_OPTIONS_HZ[s.startIndex], END_FREQ_OPTIONS_HZ[s.endIndex],
+    STEP_OPTIONS_HZ[s.stepIndex], ACCURACY_OPTIONS_PCT[s.accuracyIndex],
+    TEST_TIME_OPTIONS_MS[s.timeIndex], REPEAT_OPTIONS[s.repeatIndex],
+    DUTY_OPTIONS_PCT[s.dutyIndex]};
+}
+