61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
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#include "BookSettings.h"
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#include <HalStorage.h>
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#include <HardwareSerial.h>
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#include <Serialization.h>
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namespace {
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constexpr uint8_t BOOK_SETTINGS_VERSION = 1;
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constexpr uint8_t BOOK_SETTINGS_COUNT = 1; // Number of persisted fields
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} // namespace
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std::string BookSettings::filePath(const std::string& cachePath) { return cachePath + "/book_settings.bin"; }
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BookSettings BookSettings::load(const std::string& cachePath) {
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BookSettings settings;
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FsFile f;
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if (!Storage.openFileForRead("BST", filePath(cachePath), f)) {
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return settings;
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}
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uint8_t version;
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serialization::readPod(f, version);
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if (version != BOOK_SETTINGS_VERSION) {
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f.close();
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return settings;
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}
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uint8_t fieldCount;
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serialization::readPod(f, fieldCount);
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// Read fields that exist (supports older files with fewer fields)
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uint8_t fieldsRead = 0;
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do {
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serialization::readPod(f, settings.letterboxFillOverride);
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if (++fieldsRead >= fieldCount) break;
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// New fields added here for forward compatibility
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} while (false);
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f.close();
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Serial.printf("[%lu] [BST] Loaded book settings from %s (letterboxFill=%d)\n", millis(), filePath(cachePath).c_str(),
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settings.letterboxFillOverride);
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return settings;
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}
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bool BookSettings::save(const std::string& cachePath, const BookSettings& settings) {
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FsFile f;
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if (!Storage.openFileForWrite("BST", filePath(cachePath), f)) {
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Serial.printf("[%lu] [BST] Could not save book settings!\n", millis());
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return false;
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}
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serialization::writePod(f, BOOK_SETTINGS_VERSION);
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serialization::writePod(f, BOOK_SETTINGS_COUNT);
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serialization::writePod(f, settings.letterboxFillOverride);
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// New fields added here
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f.close();
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Serial.printf("[%lu] [BST] Saved book settings to %s\n", millis(), filePath(cachePath).c_str());
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return true;
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}
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