MyTestClientHandler.h

//
// Created by duni on 12/01/2020.
//

#ifndef PROBLEMSOLVER_MYTESTCLIENTHANDLER_H
#define PROBLEMSOLVER_MYTESTCLIENTHANDLER_H

#include  "ClientHandler.h"
#include "CacheManager.h"
#include "Solver.h"
#include <string>
#include <unistd.h>
#include <cstring>
#include <sys/socket.h>

using namespace std;

template<class Problem, class Solution>
class MyTestClientHandler : public ClientHandler {
private:
    Solver<Problem, Solution> *solver;
    CacheManager<Problem, Solution> *cm;

public:
    // This is a constructor function
    MyTestClientHandler(Solver<Problem, Solution> *s, CacheManager<Problem, Solution> *cm) {
        this->solver = s;
        this->cm = cm;

    }

    // This function reads the string from the client
    void handleClient(int socketId) {
        string solution;
        char buffer1[1] = {0};
        string bufferWithLine = "";
        // Read the line char by char
        while (read(socketId, buffer1, 1)) {
            char currChar = buffer1[0];
            // Check if the current char isn't a line ending char
            if (currChar != '\n') {
                // Insert each letter to the current buffer - each buffer contains a single line
                bufferWithLine += buffer1[0];
            } else {

                // Check if a current line is the "end" line
                if (bufferWithLine == "end\r") {
                    break;
                }

                // Check if the solution exist in the cache
                if (cm->doesSolutionExist(bufferWithLine, "")) {
                    solution = cm->getSolution(bufferWithLine, "");
                } else {
                    // If the problem han't been solved before - solve the problem
                    solution = solver->solve(bufferWithLine);
                    cm->saveSolution(bufferWithLine, solution, "");
                }
                const char *solutionToSend = solution.c_str();
                bufferWithLine = "";
                send(socketId, solutionToSend, strlen(solutionToSend), 0);
            }

        }
    }
};


#endif //PROBLEMSOLVER_MYTESTCLIENTHANDLER_H