Chuyển lưu trữ dữ liệu sang data base

src/storage/database.hpp

@@ -0,0 +1,51 @@
+#pragma once
+
+#include <nlohmann/json.hpp>
+
+#include <filesystem>
+#include <mutex>
+#include <optional>
+#include <string>
+
+struct sqlite3;
+
+namespace lm {
+
+class Database
+{
+public:
+  explicit Database(std::filesystem::path data_dir);
+
+  bool init(std::string& err);
+  void close();
+
+  std::filesystem::path dataDir() const { return data_dir_; }
+  std::filesystem::path dbPath() const { return db_path_; }
+  std::filesystem::path mapsDir() const { return data_dir_ / "maps"; }
+  std::filesystem::path soundsDir() const { return data_dir_ / "sounds"; }
+  std::filesystem::path recordingsDir() const { return data_dir_ / "recordings"; }
+
+  bool getDocument(const std::string& name, nlohmann::json& out) const;
+  bool setDocument(const std::string& name, const nlohmann::json& doc);
+
+  std::optional<nlohmann::json> getLayoutProfile(const std::string& id) const;
+  bool setLayoutProfile(const nlohmann::json& profile);
+  bool deleteLayoutProfile(const std::string& id);
+
+  sqlite3* handle() const { return db_; }
+
+private:
+  std::filesystem::path data_dir_;
+  std::filesystem::path db_path_;
+  sqlite3* db_ = nullptr;
+  mutable std::mutex mu_;
+
+  bool openDb(std::string& err);
+  bool applySchema(std::string& err);
+  bool migrateFromJsonIfNeeded(std::string& err);
+  bool ensureDataDirs(std::string& err);
+  std::optional<std::string> getMeta(const std::string& key) const;
+  bool setMeta(const std::string& key, const std::string& value);
+};
+
+}  // namespace lm