import { IPResult, PElementResult, PRuleResult } from './PObjectMap';
import G from '@cafetextual/util/dist/src/type/G';

/**
 * Records an error that does not directly relate to the parser grammar. 
 * 
 * <p>This includes errors in object mapping, and errors added not non-grammar validation  </p>
 */
export default class PValidationError
{
	
	static OBJECT_MAPPING:string = 'object';
	static PARSER_VALIDATION:string = 'parse';
	static DUPLICATE_TYPE:string = "dupliate type";
	

	constructor(type:string, result:IPResult, message:string, localType:string = null  )
	{
		this.type = type;
		this.localType = localType;
		this.message = message;
		this.element = G.aas(result, PElementResult);
		this.rule = G.aas(result, PRuleResult);
		
	} // PValidationError
	
	/**
	 * error type, used for filering and to distinguise errors object mapping, to external client errors 
	 */
	type:string;
	
	localType:string;
	
	element:PElementResult;
	rule:PRuleResult;
	
	message:string;
	
	/**
	 * convenience method to get the (start) line of the element
	 */
	get line():number {
		if (!this.element && !this.rule) {
			return -1;
		}
		return this.element ? this.element.startLineIndex : this.rule.startIndex; 
	}
	
	get result():IPResult {
		return this.element ? this.element : this.rule;
	}
	
	/**
	 * Convenience method to get index
	 */
	get index():number {
		return this.element ? this.element.startIndex : -1
	} // index
	
	
	
	
	
} // class