#include "SudokuChecker.h"
#include <iostream>
#include <sstream>
#include <fstream>

SudokuChecker::SudokuChecker(int _board[][9]) {
    for (int i = 0; i < 9; i++) {
        std::vector<int> temp;
        for (int j = 0; j < 9; j++) {
            temp.push_back(_board[i][j]);
        }
        board.push_back(temp);
    }
}

SudokuChecker::SudokuChecker(const char *filename) {
    std::ifstream infile(filename);
    if (infile) {
        std::string line;
        while (std::getline(infile, line)) {
            std::vector<int> temp;
            std::istringstream ss(line);
            int val;
            while (ss >> val) {
                temp.push_back(val);
            }
            board.push_back(temp);
        }
    }
    infile.close();
}

void SudokuChecker::printBoard() const {
    for (size_t i = 0; i < board.size(); i++) {
        for (size_t j = 0; j < board[i].size(); j++) {
            std::cout << board[i][j] << " ";
        }
        std::cout << std::endl;
    }
}

bool SudokuChecker::checkRow(int row) {
    std::set<int> found;
    for (int i = 0; i < 9; i++) {
        int val = board[row][i];
        if (found.count(val) == 1)
            return false;
        else
            found.insert(val);
    }
    return found == required_vals;
}

bool SudokuChecker::checkCol(int col) {
    std::set<int> found;
    for (int i = 0; i < 9; i++) {
        int val = board[i][col];
        if (found.count(val) == 1)
            return false;
        else
            found.insert(val);
    }
    return found == required_vals;
}

bool SudokuChecker::checkSquare(int startY, int startX) {
    std::set<int> found;
    for (int i = startY; i < startY + 3; i++) {
        for (int j = startX; j < startX + 3; j++) {
            int val = board[i][j];
            if (found.count(val) == 1)
                return false;
            else
                found.insert(val);
        }
    }
    return found == required_vals;
}