package io.trygvis.rules.network;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;

import java.io.IOException;
import java.util.Objects;

@JsonSerialize(using = Ipv4Address.Serializer.class)
public class Ipv4Address implements Comparable<Ipv4Address> {
    public final int address;

    public Ipv4Address(int address) {
        this.address = address;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;

        if (o instanceof Ipv4Address) {
            Ipv4Address other = (Ipv4Address) o;
            return address == other.address;
        }

        return false;
    }

    @Override
    public int hashCode() {
        return Objects.hash(address);
    }

    @Override
    public int compareTo(Ipv4Address o) {
        return address - o.address;
    }

    @Override
    public String toString() {
        return "%d.%d.%d.%d".formatted(
                address >> 24 & 0xff,
                address >> 16 & 0xff,
                address >> 8 & 0xff,
                address & 0xff);
    }

    public static class Serializer extends JsonSerializer<Ipv4Address> {
        @Override
        public void serialize(Ipv4Address value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
            gen.writeStartObject();
            gen.writeObjectField("value", value.toString());
            gen.writeEndObject();
        }
    }
}