feat: add cli support for BMapInspector

Ballance/BMapInspector/Cli.hpp

@@ -0,0 +1,68 @@
+#pragma once
+#include "Utils.hpp"
+#include "Reporter.hpp"
+#include <yycc.hpp>
+#include <yycc/macro/class_copy_move.hpp>
+#include <string>
+#include <optional>
+#include <expected>
+
+namespace BMapInspector::Cli {
+
+	enum class RequestKind {
+		Help,
+		Version,
+		Work,
+	};
+
+	class Request {
+	public:
+		static Request FromHelpRequest();
+		static Request FromVersionRequest();
+		static Request FromWorkRequest(Utils::ReportLevel level,
+		                               const std::u8string_view& file_path,
+		                               const std::u8string_view& encoding,
+		                               const std::u8string_view& ballance_path);
+
+	private:
+		Request(RequestKind kind,
+		        std::optional<Utils::ReportLevel> level,
+		        std::optional<std::u8string_view> file_path,
+		        std::optional<std::u8string_view> encoding,
+		        std::optional<std::u8string_view> ballance_path);
+
+	public:
+		~Request();
+		YYCC_DEFAULT_COPY_MOVE(Request)
+
+	public:
+		RequestKind GetRequestKind() const;
+		Utils::ReportLevel GetLevel() const;
+		std::u8string_view GetFilePath() const;
+		std::u8string_view GetEncoding() const;
+		std::u8string_view GetBallancePath() const;
+
+	private:
+		RequestKind kind;                           ///< The kind of this request.
+		std::optional<Utils::ReportLevel> level;    ///< The filter level.
+		std::optional<std::u8string> file_path;     ///< The path to loaded map file.
+		std::optional<std::u8string> encoding;      ///< The encoding used when loading map file.
+		std::optional<std::u8string> ballance_path; ///< The path to Ballance root directory for loading resources.
+	};
+
+	enum class Error {
+		BadParse, ///< Error occurs when executing parser.
+		NoFile, ///< User do not specify file path for loading.
+		BadFile, ///< User specified file path is bad.
+		NoBallance, ///< User do not specify Ballance directory for loading.
+		BadBallance, ///< User specified Ballance directory is bad.
+		BadEncoding, ///< User given encoding value is bad.
+		BadLevel, ///< User given level name is bad.
+	};
+
+	template<typename T>
+	using Result = std::expected<T, Error>;
+
+	Result<Request> parse();
+
+} // namespace BMapInspector::Cli