/******************************************************************************
 * This program implements a simple number guessing game.
 * 
 * Copyright © 2021 Richard Lesh.  All rights reserved.
 *****************************************************************************/

#undef NDEBUG

#include "Utils.hpp"
#include <cmath>
#include <ctime>
#include <iostream>
#include <string>

using namespace Utils;
using namespace std;

int main(int argc, char **argv) {

// Get the maximum number.
    string input_str = Utils::prompt("Maximum for value: ");
    int max = Utils::stoiWithDefault(input_str, 10);
    if (max < 3) {
        cout << "That is too easy, using 10 instead." << endl;
        max = 10;
    }

// Seed the pseudo-random number generator.
    srand(time(0));
    rand();
    rand();
    rand();
    rand();
    rand();
// Compute a pseudo-random match value.
    int match_value = int(max * (rand()/(RAND_MAX + 1.0))) + 1;
    cout << "Try to guess the number I'm thinking of between 1 and " << max << endl;

// Loop allowing the user to guess.
    int attempts = 1;
    while (true) {
        string const PROMPT_MSG = string("Guess #") + to_string(attempts) + string(": ");
        input_str = Utils::prompt(PROMPT_MSG);
        int guess = 0;
        try {
            guess = stoi(input_str);
        } catch (invalid_argument ex) {
            cout << "Your input makes no sense to me!" << endl;
        }
        if (guess != 0) {
            if (guess == match_value) {
                cout << "You guessed my number in " << attempts << " attempts!" << endl;
                break;
            } else if (guess < match_value) {
                cout << "Your guess is too low." << endl;
            } else {
                cout << "Your guess is too high." << endl;
            }
            ++attempts;
        }
    }
    return 0;
}