@discipl/law-reg/dist/expressions/maxExpressionChecker.js

Discipl Law and Regulation Compliance Library

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.MaxExpressionChecker = void 0;

var _baseSubExpressionChecker = require("./baseSubExpressionChecker");

var _big_util = require("../utils/big_util");

class MaxExpressionChecker extends _baseSubExpressionChecker.BaseSubExpressionChecker {
  async checkSubExpression(fact, ssid, context) {
    let maxResult;

    for (const op of fact.operands) {
      const newContext = this._getContextExplainer().extendContextWithExplanation(context);

      const operandResult = await this._getExpressionChecker().checkExpression(op, ssid, newContext);
      this.logger.debug('OperandResult in MAX', operandResult, 'for operand', op);

      if (operandResult === undefined) {
        maxResult = undefined;
        break;
      } else if (!_big_util.BigUtil.isNumeric(operandResult)) {
        maxResult = false;
        break;
      } else if (!_big_util.BigUtil.isNumeric(maxResult) || _big_util.BigUtil.greaterThan(operandResult, maxResult)) {
        maxResult = operandResult;
      }
    }

    this.logger.debug('Resolved MAX as', maxResult);

    this._getContextExplainer().extendContextExplanationWithResult(context, maxResult);

    return maxResult;
  }

}

exports.MaxExpressionChecker = MaxExpressionChecker;