package geniusweb.actions;

import java.util.Collections;
import java.util.LinkedList;
import java.util.List;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

import geniusweb.issuevalue.Bid;

/**
 * Request a comparison from the cob party. The party can do a
 * {@link Comparison} action as a response.
 */
public class ElicitComparison extends ActionWithBid {
	private final List<Bid> options = new LinkedList<>();

	/**
	 * @param id   the eliciting party.
	 * @param bid  the bid to compare the options with
	 * @param opts the available options that may be chosen from. Must not be
	 *             null and must have at least 2 options.
	 */
	@JsonCreator
	public ElicitComparison(@JsonProperty("actor") PartyId id,
			@JsonProperty("bid") Bid bid,
			@JsonProperty("options") List<Bid> opts) {
		super(id, bid);
		if (bid == null)
			throw new IllegalArgumentException(
					"Bid to compare with must not be null");
		if (opts == null || opts.size() < 1) {
			throw new IllegalArgumentException(
					"opts must not be null and have at least 1 option");
		}
		this.options.addAll(opts);
	}

	/**
	 * 
	 * @return the list of {@link Bid}s to compare {@link #getBid()} with
	 */
	public List<Bid> getOptions() {
		return Collections.unmodifiableList(options);
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result = super.hashCode();
		result = prime * result + ((options == null) ? 0 : options.hashCode());
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (!super.equals(obj))
			return false;
		if (getClass() != obj.getClass())
			return false;
		ElicitComparison other = (ElicitComparison) obj;
		if (options == null) {
			if (other.options != null)
				return false;
		} else if (!options.equals(other.options))
			return false;
		return true;
	}

	@Override
	public String toString() {
		return "ElicitComparison[" + getActor() + "," + getBid() + "," + options
				+ "]";

	}

}