#include <iostream>
#include "Trinary.h"

using namespace std;

string IntToTrinary(int number){
    string value;
    int digit;
    bool negative{false};

    if (number < 0) {
        number *= -1;
        negative = true;
    }

    if (number == 0) {
        value = "0";
    }

    while(number > 0) {
        digit = number % 3;
        number = number /3;
        value = IntDigitToTrinary(digit) + value;
    }

    if (negative) {
        value = "-" + value;
    }

    return value;
}

int TrinaryToInt(string number){
    int value{0};
    bool negative{false};
    size_t pos{0};

    if (number[0] == '-') {
        negative = true;
        pos = 1;
    }

    if (number[0] == '+') {
        pos = 1;
    }

    while(pos < number.size()) {
        value = value * 3 + TrinaryDigitToInt(number[pos]);
        pos++;
    }

    if (negative) {
        value *= -1;
    }

    return value;
}

char IntDigitToTrinary(int d){
    char value{' '};
    if(d >= 0 and d < static_cast<int>(TRINARY_DIGITS.size())) {
       value = TRINARY_DIGITS[d];
    }

    return value;
}

int TrinaryDigitToInt(char d){
    int value{-1};
    size_t pos;
    pos = TRINARY_DIGITS.find(d);
    if (pos != string::npos) {
        value = static_cast<int>(pos);
    }
    return value;
}