import { ValueRequirement } from "./ValueRequirement.js";
import { Field } from "../Field.js";

export class Term extends Field {
	separator = null;
	position = null;
	valueRequirement = ValueRequirement.REQUIRED;

	constructor(key) {
		super(key)
	}

	inputToString(fieldInputId) {
		const input = this.getInputValue(fieldInputId);
		const qualifier = this.getInputQualifier(fieldInputId);

		return qualifier + this.key + (input ? this.separator + input : "");
	}

	isValidInput(fieldInputId) {
		const input = this.getInputValue(fieldInputId);
		const qualifier = this.getInputQualifier(fieldInputId);


		if (this.valueRequirement !== ValueRequirement.REQUIRED && qualifier)
			return true;

		try {
			return this.validate(input);
		} catch(e) {
			return false;
		}
	}

	// Virtual methods

	getInputQualifier(fieldId) {
		return "";
	}

	// Builder methods

	pos(i) {
		this.position = i;
		return this;
	}

	value(requirement) {
		this.valueRequirement = requirement;
		return this;
	}
}