#pragma once
#include "Export.h"
#include "Global.h"
#include "IPTable.h"
#include "HTTPObjects.h"
#include "TempFileManager.h"

using SFR_FileMap = std::map<std::string, std::string>;

class UNSWSC_DLL_EXPORT SyncFileReceiver
{
protected:
	class Impl;
	std::unique_ptr<Impl> pimpl;

public:
	SyncFileReceiver();
	virtual ~SyncFileReceiver();

public:
	void SetResponseMode(bool html);
	void SetCORSEnable(bool enable);
	std::string EncodeUploadResult();
	std::string EncodeUploadResultHTML();
	void UpdateBlockedIPs(IPTablePtr ip);
	void SetTempRoot(std::string temp_root);
	uns::HTTPMethod GetMethod(uns::RequestPtr request);
	void AppenedBlockedIP(DateTime::Span block_time, std::string ip);
	bool WriteFile(const std::string& path, const std::string& bytes);
	void SetFileTimeout(std::chrono::seconds timeout = 0s, std::chrono::seconds max_proc_timeout = 0s) noexcept;

public:
	// 请求信息预检，重载以在保存文件之前检查请求体
	virtual uns::Status PreCheckRequest(uns::RequestPtr request) = 0;
	// 表单预检，重载以在处理表单前检查表单
	virtual bool PreCheckForm(uns::FormPartPtr form) = 0;
	// 路径穿越配置，重载以配置允许的路径穿越类型
	virtual uns::PathTraversalDefenceLevel PTDefence();
	// 路径穿越防护，重载以实现路径穿越检查，配置为AutoNormalize或AllowNormal时必须，否则自动退化为DenyAll
	virtual bool IsPathSafe(const std::string& raw_path);
	// 请求头预检，重载以实现在接收请求体之前检查请求头，返回false则服务器将强制关闭连接
	virtual bool IsHeaderValid(uns::RequestPtr request);

	// 主接口，重载以接收并处理文件
	virtual uns::ResponsePtr ProcessFiles(TempFileManager& file_info, SFR_FileMap file_map, const std::string& tmp_root, uns::RequestPtr request);

public:
	uns::ResponsePtr Execute(uns::RequestPtr request);
};

using SyncFileReceiverPtr = std::shared_ptr<SyncFileReceiver>;