d/j2: Some work on the SQL editors (#2771)

common/sqlite/sqlite.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#include <memory>
+#include <optional>
+#include <string>
+#include <vector>
+
+#include "third-party/sqlite3/sqlite3.h"
+
+// Just a simple wrapper around the raw C types from sqlite3
+// takes care of all the relevant memory freeing and such for you (hopefully)
+namespace sqlite {
+struct SQLite3DatabaseDeleter {
+  void operator()(sqlite3* db) const {
+    if (db) {
+      sqlite3_close(db);
+    }
+  }
+};
+
+struct GenericResponse {
+  std::vector<std::vector<std::string>> rows;
+};
+
+class SQLiteDatabase {
+ public:
+  SQLiteDatabase() = default;
+  bool is_open() const { return m_db.has_value(); }
+  bool open_db(const std::string& path);
+  GenericResponse run_query(const std::string& sql);
+
+ private:
+  std::optional<std::shared_ptr<sqlite3>> m_db;
+};
+
+}  // namespace sqlite