"use strict";

const chalk = require("chalk");
const escapeRegexString = require("escape-regex-string");

const packages = require("./packages.json");
const issues = require("./all-issues.json");

let blacklist = new Set(["file", "at", "boot", "instead", "check", "more", "non", "roundup", "root", "screen", "src", "t", "which", "arguments", "wrap", "up", "unit", "units"]);

function normalizeString(string) {
	return string.replace(/'/g, "").replace(/[^a-zA-Z0-9]/g, " ").replace(/\s{2,}/g, " ");
}

let classifiedIssues = new Set();

packages.filter((pkg) => {
	return !blacklist.has(pkg);
}).forEach((pkg) => {
	let searchString = normalizeString(pkg);
	let regex = new RegExp(`\\b${escapeRegexString(searchString)}\\b`)

	let matches = issues.filter((issue) => {
		if (issue.title != null) {
			let normalizedTitle = normalizeString(issue.title);
			
			return regex.test(normalizedTitle);
		} else {
			// occurs on rate-limiting errors
			return false;
		}
	});

	matches.forEach((issue) => {
		classifiedIssues.add(issue.id);
	});

	if (matches.length > 0) {
		console.log(chalk.yellow.bold(pkg));
		
		matches.forEach((match) => {
			console.log(`\t ${chalk.bold(`#${match.number}`)}   ${match.title}`);
		});
	}
});

console.log(`Classified ${classifiedIssues.size} issues. Failed to classify ${issues.length - classifiedIssues.size} issues.`);