#ifndef CMDMAN_H
#define CMDMAN_H

#include "fileman.h"

#include <json/json.h>

#include <string>
#include <vector>
#include <map>

using std::string;
using std::vector;
using std::map;

class CmdMan {
public:
	enum rettype { json, error, text };
	struct CmdRet {
		rettype type;
		string msg;
	};
	
	CmdMan(FileMan &fm);
	~CmdMan();

	// execute cmd with optional argument args, returns answer string
	// if cmd unknown, returns error string
	CmdRet execute(string cmd, vector<string> args);
	CmdRet handle(Json::Value root);

	//~ bool sendJson(Json::Value root);
	//~ bool receiveJson(boost::asio::streambuf &recvbuf);
	//~ bool parseJson(Json::Value *root, boost::asio::streambuf &recvbuf);
	
	
	/* internal commands */
	CmdRet cmdVersion(string);
	CmdRet cmdLogin(string, string);
	CmdRet cmdPutdata();
	CmdRet cmdGetdata();
	
private:
	
	Json::CharReader* reader;
	Json::StreamWriterBuilder wbuilder;

	string jsonerror;

	FileMan &fileman;

	map<string,CmdRet(CmdMan::*)(vector<string>)> execmap;
	map<string,string> helpmap;
	map<string,CmdRet(CmdMan::*)(Json::Value)> handlemap;
	

	/* execute command descriptions and methods go here */
	const string descHelp = "print available commands";
	CmdRet cmdHelp(vector<string> args);
	const string descStatus = "request status from server";
	CmdRet cmdStatus(vector<string> args);
	const string descDisconnect = "disconnect from server";
	CmdRet cmdDisconnect(vector<string> args);
	const string descPut = "upload file to server and add to queue";
	CmdRet cmdPut(vector<string> args);
	const string descGet = "retrieve file from server";
	CmdRet cmdGet(vector<string> args);
	const string descList = "list files available on server";
	CmdRet cmdList(vector<string> args);
	
	/* handle commands go here */
	CmdRet handleDefault(Json::Value);
	CmdRet handlePut(Json::Value);
	CmdRet handleGet(Json::Value);
};

#endif