76 lines
2.5 KiB
C++
76 lines
2.5 KiB
C++
#include "CrossPointSettings.h"
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#include <HardwareSerial.h>
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#include <SD.h>
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#include <Serialization.h>
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#include <cstdint>
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#include <fstream>
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// Initialize the static instance
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CrossPointSettings CrossPointSettings::instance;
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namespace {
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constexpr uint8_t SETTINGS_FILE_VERSION = 1;
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// Increment this when adding new persisted settings fields
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constexpr uint8_t SETTINGS_COUNT = 5;
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constexpr char SETTINGS_FILE[] = "/sd/.crosspoint/settings.bin";
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} // namespace
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bool CrossPointSettings::saveToFile() const {
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// Make sure the directory exists
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SD.mkdir("/.crosspoint");
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std::ofstream outputFile(SETTINGS_FILE);
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serialization::writePod(outputFile, SETTINGS_FILE_VERSION);
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serialization::writePod(outputFile, SETTINGS_COUNT);
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serialization::writePod(outputFile, whiteSleepScreen);
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serialization::writePod(outputFile, extraParagraphSpacing);
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serialization::writePod(outputFile, shortPwrBtn);
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serialization::writePod(outputFile, landscapeReading);
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serialization::writePod(outputFile, landscapeFlipped);
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outputFile.close();
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Serial.printf("[%lu] [CPS] Settings saved to file\n", millis());
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return true;
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}
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bool CrossPointSettings::loadFromFile() {
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if (!SD.exists(SETTINGS_FILE + 3)) { // +3 to skip "/sd" prefix
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Serial.printf("[%lu] [CPS] Settings file does not exist, using defaults\n", millis());
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return false;
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}
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std::ifstream inputFile(SETTINGS_FILE);
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uint8_t version;
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serialization::readPod(inputFile, version);
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if (version != SETTINGS_FILE_VERSION) {
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Serial.printf("[%lu] [CPS] Deserialization failed: Unknown version %u\n", millis(), version);
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inputFile.close();
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return false;
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}
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uint8_t fileSettingsCount = 0;
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serialization::readPod(inputFile, fileSettingsCount);
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// load settings that exist (support older files with fewer fields)
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uint8_t settingsRead = 0;
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do {
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serialization::readPod(inputFile, whiteSleepScreen);
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if (++settingsRead >= fileSettingsCount) break;
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serialization::readPod(inputFile, extraParagraphSpacing);
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if (++settingsRead >= fileSettingsCount) break;
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serialization::readPod(inputFile, shortPwrBtn);
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if (++settingsRead >= fileSettingsCount) break;
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serialization::readPod(inputFile, landscapeReading);
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if (++settingsRead >= fileSettingsCount) break;
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serialization::readPod(inputFile, landscapeFlipped);
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if (++settingsRead >= fileSettingsCount) break;
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} while (false);
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inputFile.close();
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Serial.printf("[%lu] [CPS] Settings loaded from file\n", millis());
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return true;
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}
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