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https://github.com/daveallie/crosspoint-reader.git
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172916afd4
* **What is the goal of this PR?** Implement a metadata viewer for the Recents screen * **What changes are included?** | Recents | Files | | --- | --- | | <img alt="image" src="https://github.com/user-attachments/assets/e0f2d816-ddce-4a2e-bd4a-cd431d0e6532" /> | <img alt="image" src="https://github.com/user-attachments/assets/3225cdce-d501-4175-bc92-73cb8bfe7a41" /> | For the Files screen, I have not made any changes on purpose. For the Recents screen, we now display the Book title and author. If it is a file with no epub metadata like txt or md, we display the file name without the file extension. --- Did you use AI tools to help write this code? _**< YES >**_ Although I went trough all the code manually and made changes as well, please be aware the majority of the code is AI generated. --------- Co-authored-by: Eliz Kilic <elizk@google.com>
107 lines
3.1 KiB
C++
107 lines
3.1 KiB
C++
#include "RecentBooksStore.h"
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#include <HardwareSerial.h>
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#include <SDCardManager.h>
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#include <Serialization.h>
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#include <algorithm>
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namespace {
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constexpr uint8_t RECENT_BOOKS_FILE_VERSION = 2;
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constexpr char RECENT_BOOKS_FILE[] = "/.crosspoint/recent.bin";
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constexpr int MAX_RECENT_BOOKS = 10;
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} // namespace
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RecentBooksStore RecentBooksStore::instance;
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void RecentBooksStore::addBook(const std::string& path, const std::string& title, const std::string& author) {
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// Remove existing entry if present
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auto it =
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std::find_if(recentBooks.begin(), recentBooks.end(), [&](const RecentBook& book) { return book.path == path; });
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if (it != recentBooks.end()) {
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recentBooks.erase(it);
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}
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// Add to front
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recentBooks.insert(recentBooks.begin(), {path, title, author});
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// Trim to max size
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if (recentBooks.size() > MAX_RECENT_BOOKS) {
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recentBooks.resize(MAX_RECENT_BOOKS);
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}
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saveToFile();
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}
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bool RecentBooksStore::saveToFile() const {
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// Make sure the directory exists
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SdMan.mkdir("/.crosspoint");
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FsFile outputFile;
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if (!SdMan.openFileForWrite("RBS", RECENT_BOOKS_FILE, outputFile)) {
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return false;
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}
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serialization::writePod(outputFile, RECENT_BOOKS_FILE_VERSION);
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const uint8_t count = static_cast<uint8_t>(recentBooks.size());
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serialization::writePod(outputFile, count);
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for (const auto& book : recentBooks) {
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serialization::writeString(outputFile, book.path);
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serialization::writeString(outputFile, book.title);
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serialization::writeString(outputFile, book.author);
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}
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outputFile.close();
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Serial.printf("[%lu] [RBS] Recent books saved to file (%d entries)\n", millis(), count);
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return true;
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}
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bool RecentBooksStore::loadFromFile() {
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FsFile inputFile;
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if (!SdMan.openFileForRead("RBS", RECENT_BOOKS_FILE, inputFile)) {
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return false;
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}
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uint8_t version;
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serialization::readPod(inputFile, version);
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if (version != RECENT_BOOKS_FILE_VERSION) {
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if (version == 1) {
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// Old version, just read paths
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uint8_t count;
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serialization::readPod(inputFile, count);
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recentBooks.clear();
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recentBooks.reserve(count);
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for (uint8_t i = 0; i < count; i++) {
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std::string path;
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serialization::readString(inputFile, path);
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// Title and author will be empty, they will be filled when the book is
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// opened again
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recentBooks.push_back({path, "", ""});
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}
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} else {
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Serial.printf("[%lu] [RBS] 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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} else {
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uint8_t count;
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serialization::readPod(inputFile, count);
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recentBooks.clear();
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recentBooks.reserve(count);
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for (uint8_t i = 0; i < count; i++) {
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std::string path, title, author;
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serialization::readString(inputFile, path);
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serialization::readString(inputFile, title);
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serialization::readString(inputFile, author);
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recentBooks.push_back({path, title, author});
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}
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}
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inputFile.close();
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Serial.printf("[%lu] [RBS] Recent books loaded from file (%d entries)\n", millis(), recentBooks.size());
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return true;
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}
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