package org.gcube.gcat.oldutils;

import org.json.simple.JSONObject;

/**
 * A custom field bean. It also stores index of the category and of the metadata field associated.
 * These are used to sort them before pushing the content to CKAN.
 * If they are missing, indexes are set to Integer.MAX_VALUE.
 * @author Costantino Perciante (ISTI - CNR)
 * @author Luca Frosini (ISTI - CNR)
 */
public class CustomField implements Comparable<CustomField> {
	
	private String key;
	private String qualifiedKey;
	private String value;
	
	private int indexCategory = Integer.MAX_VALUE;
	private int indexMetadataField = Integer.MAX_VALUE;

	
	private void init(String key, String value, int indexCategory, int indexMetadataField) {
		if(key == null || value == null || key.isEmpty()) {
			throw new IllegalArgumentException(
					"A custom field must have a key and a value! Provided values are " + key + "=" + value);
		}
		
		this.key = key;
		this.qualifiedKey = key;
		this.value = value;
		
		this.indexMetadataField = indexMetadataField;
		this.indexCategory = indexCategory;
		
		if(this.indexCategory < 0) {
			this.indexCategory = Integer.MAX_VALUE;
		}
		
		if(this.indexMetadataField < 0) {
			this.indexMetadataField = Integer.MAX_VALUE;
		}
	}
	
	
	public CustomField(JSONObject object) {
		super();
		init((String) object.get("key"), (String) object.get("value"), -1, -1);
	}
	
	/**
	 * @param key
	 * @param value
	 */
	public CustomField(String key, String value) {
		super();
		init(key, value, -1, -1);
	}
	
	/**
	 * @param key
	 * @param value
	 * @param indexMetadataField
	 * @param indexCategory
	 */
	public CustomField(String key, String value, int indexCategory, int indexMetadataField) {
		super();
		init(key, value, indexCategory, indexMetadataField);
	}
	
	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 String getQualifiedKey() {
		return qualifiedKey;
	}
	
	public void setQualifiedKey(String qualifiedKey) {
		this.qualifiedKey = qualifiedKey;
	}
	
	
	public int getIndexCategory() {
		return indexCategory;
	}
	
	public void setIndexCategory(int indexCategory) {
		this.indexCategory = indexCategory;
		if(this.indexCategory < 0)
			this.indexCategory = Integer.MAX_VALUE;
	}
	
	public int getIndexMetadataField() {
		return indexMetadataField;
	}
	
	public void setIndexMetadataField(int indexMetadataField) {
		this.indexMetadataField = indexMetadataField;
		if(this.indexMetadataField < 0) {
			this.indexMetadataField = Integer.MAX_VALUE;
		}
	}
	
	@Override
	public String toString() {
		return "CustomField [key=" + key + ", qualifiedKey=" + qualifiedKey + ", value=" + value
				+ ", indexMetadataField=" + indexMetadataField + ", indexCategory=" + indexCategory + "]";
	}
	
	@Override
	public int compareTo(CustomField o) {
		if(this.indexCategory == o.indexCategory) {
			if(this.indexMetadataField == o.indexMetadataField) {
				return 0;
			} else {
				return this.indexMetadataField > o.indexMetadataField ? 1 : -1;
			}
		} else {
			return this.indexCategory > o.indexCategory ? 1 : -1;
		}
	}
}