package eu.dnetlib.dhp.schema.oaf;

import java.io.Serializable;

import org.apache.commons.lang3.StringUtils;

import com.fasterxml.jackson.annotation.JsonIgnore;

public class KeyValue implements Serializable {

	private String key;

	private String value;

	private DataInfo dataInfo;

	public String getKey() {
		return key;
	}

	public void setKey(String key) {
		this.key = key;
	}

	public String getValue() {
		return value;
	}

	public void setValue(String value) {
		this.value = value;
	}

	public DataInfo getDataInfo() {
		return dataInfo;
	}

	public void setDataInfo(DataInfo dataInfo) {
		this.dataInfo = dataInfo;
	}

	public String toComparableString() {
		return isBlank()
			? ""
			: String
				.format(
					"%s::%s",
					key != null ? key.toLowerCase() : "", value != null ? value.toLowerCase() : "");
	}

	@JsonIgnore
	public boolean isBlank() {
		return StringUtils.isBlank(key) && StringUtils.isBlank(value);
	}

	@Override
	public int hashCode() {
		return toComparableString().hashCode();
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;

		KeyValue other = (KeyValue) obj;

		return toComparableString().equals(other.toComparableString());
	}
}