69 lines
5.2 KiB
JavaScript
69 lines
5.2 KiB
JavaScript
import './smartrule.plugins.js';
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import { Rule } from './smartrule.classes.rule.js';
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export class SmartRule {
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constructor() {
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this.rules = [];
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}
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/**
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* makes a decision based on the given obect and the given rules
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* @param objectArg
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*/
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async makeDecision(objectArg) {
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// lets sort the rules
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this.rules = this.rules.sort((a, b) => {
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if (a.priority > b.priority) {
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return 1;
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}
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else {
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return 0;
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}
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});
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// gets the next batch with the same priority
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const getNextParallelBatch = (priorityStart) => {
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return this.rules.filter(rule => {
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return rule.priority === priorityStart;
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});
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};
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// lets run the checks
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const runNextBatch = async (startPriority, runRulesAmount) => {
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const nextBatch = getNextParallelBatch(startPriority);
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runRulesAmount = runRulesAmount + nextBatch.length;
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const outcomes = [];
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for (const rule of nextBatch) {
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const checkResult = await rule.checkFunction(objectArg);
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checkResult
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? null
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: console.log('WARNING!!! Please make sure your rule always returns a statement of how to continue!');
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if (checkResult.startsWith('apply')) {
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await rule.actionFunction(objectArg); // here the action function is run
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}
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outcomes.push(checkResult);
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}
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if (outcomes.length > 0) {
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const finalOutcomeOfBatch = outcomes.reduce((previous, current, index, array) => {
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if (current.includes('continue') || previous.includes('continue')) {
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return 'continue';
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}
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else {
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return 'stop';
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}
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});
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if (finalOutcomeOfBatch === 'stop') {
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return;
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}
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}
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if (runRulesAmount < this.rules.length) {
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await runNextBatch(startPriority + 1, runRulesAmount);
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}
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else {
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return;
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}
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};
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await runNextBatch(0, 0);
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}
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createRule(priorityArg, checkFunctionArg, actionFunctionArg) {
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const rule = new Rule(this, priorityArg, checkFunctionArg, actionFunctionArg);
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this.rules.push(rule);
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}
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}
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