#include <iostream>
#include <fstream>
#include "2Q_cache.h"
#include "Ideal_cache.h"
#include <sstream>
#include <vector>
#include <algorithm>

const char* default_test_file = "tests.txt";


int cache_test(std::string file_name) {
    std::ifstream file(file_name);

    if(!file.is_open()) {    
        std::cerr << "File open error" << std::endl;                                                    //open test file
        
       return -1;
    }

                                                                                                        

    std::string test_line, answer_line;
    int fast_q_sz, slow_q_sz, num_of_calls, page_id, test_number = 0, test_passed = 0, test_failed = 0;

    while (std::getline(file, test_line)) {
        std::stringstream ss(test_line);
        ss >> fast_q_sz >> slow_q_sz>>num_of_calls;                                                             //read input

        TwoCache cache(fast_q_sz, slow_q_sz);                                                                   //initialising
        Ideal_Cache ideal_cache(fast_q_sz + slow_q_sz);

        std::vector <int> requests;

        for (int i = 0; i < num_of_calls; i++) {                                                                 //executing
            ss >> page_id;
            cache.put_page(page_id);
            requests.push_back(page_id);
        }

        ideal_cache.get_request_vector(requests);

        std::getline(file, answer_line);

        if (cache.string_info() == answer_line) {                                                                //compare answers
            std::cout << "test - " << test_number << " passed\n";
            std::cout << "ideal tics/your tics " << ideal_cache.tic_number << "/" << cache.tic_number << std::endl;
            test_passed++;
        } else {
            std::cout << "test - " << test_number << " failed\n";
            std::cout << "right answer - " << answer_line << "your answer - " << cache.string_info() << std::endl;
            test_failed++;
        }

        test_number++;
    }
    
    file.close();

    std::cout << "\nNumber of tests = "<< test_number << "\nTests passed = " << test_passed << "\nTests failed = " << test_failed << "\n";

    return 0;
}

int main(int argc, char* argv[]) {
    if (argc == 0) {
        cache_test(default_test_file);
    } else {
        cache_test(argv[1]);
    }
}