feat: migrate old code to project

materializer/Database.hpp

@@ -0,0 +1,95 @@
+#pragma once
+#include "stdafx.hpp"
+#include <sqlite3.h>
+#include <map>
+
+namespace VSW::Materializer::Database {
+
+	class AbstractDatabase {
+	public:
+		AbstractDatabase(const YYCC::yycc_u8string_view& file);
+		virtual ~AbstractDatabase();
+		AbstractDatabase(const AbstractDatabase&) = delete;
+		AbstractDatabase& operator=(const AbstractDatabase&) = delete;
+		AbstractDatabase(AbstractDatabase&&) = delete;
+		AbstractDatabase& operator=(AbstractDatabase&&) = delete;
+
+	public:
+		/// @brief Check whether this database is ready for use.
+		bool IsValid() const;
+
+	protected:
+		/**
+		 * @brief User implemented function called after connect to the database before transition.
+		 * @return True if success, otherwise false.
+		*/
+		virtual bool PostOpen() = 0;
+		/**
+		 * @brief User implemented function called after transition before disconnect from database.
+		 * @return True if success, otherwise false.
+		*/
+		virtual bool PreClose() = 0;
+
+	protected:
+		/// @brief Subclass used for creating stmt with cache feature.
+		sqlite3_stmt* GetStmt(const char* stmt_str);
+		/// @brief Subclass used for get pointer to opened database.
+		sqlite3* GetDb();
+
+	private:
+		sqlite3* m_Db;
+		std::map<const void*, sqlite3_stmt*> m_StmtCache;
+	};
+
+	class ScriptDatabase : public AbstractDatabase {
+	public:
+		ScriptDatabase(const YYCC::yycc_u8string_view& file);
+		virtual ~ScriptDatabase();
+		ScriptDatabase(const ScriptDatabase&) = delete;
+		ScriptDatabase& operator=(const ScriptDatabase&) = delete;
+		ScriptDatabase(ScriptDatabase&&) = delete;
+		ScriptDatabase& operator=(ScriptDatabase&&) = delete;
+
+	protected:
+		virtual bool PostOpen() override;
+		virtual bool PreClose() override;
+
+	public:
+
+	};
+
+	class ContextDatabase : public AbstractDatabase {
+	public:
+		ContextDatabase(const YYCC::yycc_u8string_view& file);
+		virtual ~ContextDatabase();
+		ContextDatabase(const ContextDatabase&) = delete;
+		ContextDatabase& operator=(const ContextDatabase&) = delete;
+		ContextDatabase(ContextDatabase&&) = delete;
+		ContextDatabase& operator=(ContextDatabase&&) = delete;
+		
+	protected:
+		virtual bool PostOpen() override;
+		virtual bool PreClose() override;
+
+	public:
+
+	};
+
+	class EnvironmentDatabase : public AbstractDatabase {
+	public:
+		EnvironmentDatabase(const YYCC::yycc_u8string_view& file);
+		virtual ~EnvironmentDatabase();
+		EnvironmentDatabase(const EnvironmentDatabase&) = delete;
+		EnvironmentDatabase& operator=(const EnvironmentDatabase&) = delete;
+		EnvironmentDatabase(EnvironmentDatabase&&) = delete;
+		EnvironmentDatabase& operator=(EnvironmentDatabase&&) = delete;
+		
+	protected:
+		virtual bool PostOpen() override;
+		virtual bool PreClose() override;
+
+	public:
+
+	};
+
+}