package bjc.utils.components;

/**
 * Internal state of component description parser.
 *
 * @author ben
 */
public class ComponentDescriptionState {
	/* Tentative name of this component. */
	private String name;

	/* Tentative description of this component. */
	private String description;

	/* Tentative author of this component. */
	private String author;

	/* Tentative version of this component. */
	private int version;

	/**
	 * Set the author of this component.
	 *
	 * @param author
	 * 	The author of this component.
	 */
	public void setAuthor(final String author) {
		this.author = author;
	}

	/**
	 * Set the description of this component.
	 *
	 * @param description
	 * 	The description of this component.
	 */
	public void setDescription(final String description) {
		this.description = description;
	}

	/**
	 * Set the name of this component.
	 *
	 * @param name
	 * 	The name of this component.
	 */
	public void setName(final String name) {
		this.name = name;
	}

	/**
	 * Set the version of this component.
	 *
	 * @param version
	 * 	The version of this component.
	 */
	public void setVersion(final int version) {
		this.version = version;
	}

	/**
	 * Convert this state into the description it represents.
	 *
	 * @return
	 * 	The description represented by this state.
	 */
	public ComponentDescription toDescription() {
		return new ComponentDescription(name, author, description, version);
	}

	@Override
	public int hashCode() {
		final int prime = 31;
		int result      = 1;

		result = prime * result + (author == null ? 0 : author.hashCode());
		result = prime * result + (description == null ? 0 : description.hashCode());
		result = prime * result + (name == null ? 0 : name.hashCode());
		result = prime * result + version;

		return result;
	}

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

		final ComponentDescriptionState other = (ComponentDescriptionState) obj;

		if (author == null) {
			if (other.author != null) return false;
		} else if (!author.equals(other.author)) return false;

		if (description == null) {
			if (other.description != null) return false;
		} else if (!description.equals(other.description)) return false;

		if (name == null) {
			if (other.name != null) return false;
		} else if (!name.equals(other.name)) return false;

		if (version != other.version) return false;

		return true;
	}

	/*
	 * (non-Javadoc)
	 *
	 * @see java.lang.Object#toString()
	 */
	@Override
	public String toString() {
		final StringBuilder builder = new StringBuilder();
		builder.append("ComponentDescriptionState [");

		if (name != null) {
			builder.append("name=");
			builder.append(name);
			builder.append(", ");
		}

		if (description != null) {
			builder.append("description=");
			builder.append(description);
			builder.append(", ");
		}

		if (author != null) {
			builder.append("author=");
			builder.append(author);
			builder.append(", ");
		}

		builder.append("version=");
		builder.append(version);
		builder.append("]");

		return builder.toString();
	}
}