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 * The MIT License (MIT)                                                         *
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package org.aoju.bus.extra.captcha.provider;

import org.aoju.bus.core.lang.Symbol;
import org.aoju.bus.extra.captcha.strategy.CodeStrategy;

import java.awt.*;
import java.util.ArrayList;
import java.util.List;

/**
 * 滑动验证码
 *
 * @author Kimi Liu
 * @since Java 17+
 */
public class PuzzleProvider extends AbstractProvider {

    public PuzzleProvider(int width, int height, int codeCount, int interfereCount) {
        super(width, height, codeCount, interfereCount);
    }

    public PuzzleProvider(int width, int height, CodeStrategy generator, int interfereCount) {
        super(width, height, generator, interfereCount);
    }

    @Override
    protected Image createImage(String code) {
        return null;
    }

    @Override
    public String get() {
        return null;

    }

    @Override
    public boolean verify(String inputCode) {
        List<Integer> list = new ArrayList<>();
        for (int i = 0; i < inputCode.length(); i++) {
            char c = inputCode.charAt(i);
            if (c >= Symbol.C_ZERO && c <= Symbol.C_NINE) {
                list.add(Integer.valueOf(String.valueOf(c)));
            }
        }
        int sum = 0;
        for (Integer data : list) {
            sum += data;
        }
        double avg = sum * 1.0 / list.size();
        double sum2 = 0.0;
        for (Integer data : list) {
            sum2 += Math.pow(data - avg, 2);
        }
        double stddev = sum2 / list.size();
        return stddev != 0;
    }

}
