cards-database/server/compiler/utils/util.ts

import { exec } from 'node:child_process'
import { glob } from 'glob'
import { Card, Set } from '../../../interfaces'
import * as legals from '../../../meta/legals'

interface fileCacheInterface {
	[key: string]: any
}

export const DB_PATH = "../"

const fileCache: fileCacheInterface = {}

/**
 * Fetch a JSON file from a remote location
 * @param url the URL to fetch
 * @returns the JSON file content
 */
export async function fetchRemoteFile<T = any>(url: string): Promise<T> {
	if (!fileCache[url]) {
		const signal = new AbortController()

		const finished = setTimeout(() => {
			signal.abort()
		}, 60 * 1000);

		const resp = await fetch(url, {
			signal: signal.signal
		})
		clearTimeout(finished)
		fileCache[url] = resp.json()
	}
	return fileCache[url]
}

const globCache: Record<string, Array<string>> = {}

export async function smartGlob(query: string): Promise<Array<string>> {
	if (!globCache[query]) {
		globCache[query] = await glob(query)
	}
	return globCache[query]
}

/**
 * Check if a card is currently Legal
 * @param type the type of legality
 * @param card the card to check
 * @param localId the card localid
 * @returns {boolean} if the card is currently in the legal type
 */
export function cardIsLegal(type: 'standard' | 'expanded', card: Card, localId: string): boolean {
	const legal = legals[type]
	if (
		legal.includes.series.includes(card.set.serie.id) ||
		legal.includes.sets.includes(card.set.id) ||
		card.regulationMark && legal.includes.regulationMark.includes(card.regulationMark)
	) {
		return !(
			legal.excludes.sets.includes(card.set.id) ||
			legal.excludes.cards.includes(`${card.set.id}-${localId}`)
		)
	}
	return false
}

/**
 * Check if a set is currently Legal
 * @param type the type of legality
 * @param set the set to check
 * @returns {boolean} if the set is currently in the legal type
 */
export function setIsLegal(type: 'standard' | 'expanded', set: Set): boolean {
	const legal = legals[type]
	if (
		legal.includes.series.includes(set.serie.id) ||
		legal.includes.sets.includes(set.id)
	) {
		return !legal.excludes.sets.includes(set.id)
	}
	return false
}

function runCommand(command: string): Promise<string> {
	return new Promise<string>((res, rej) => {
		exec(command, (err, out) => {
			if (err) {
				rej(err)
				return
			}
			res(out)
		})
	})
}

let lastEditsCache: Record<string, string> = {}
export async function loadLastEdits() {
	const firstCommand = 'git ls-tree -r --name-only HEAD ../data'
	const files = (await runCommand(firstCommand)).split('\n')
	console.log('Loaded files tree', files.length, 'files')
	console.log('Loading their last edit time')
	let processed = 0
	for (let file of files) {
		file = file.replace(/"/g, '').replace("\\303\\251", "é")
		try {
			lastEditsCache[file] = await runCommand(`git log -1 --pretty="format:%cd" --date=iso-strict "${file}"`)
		} catch {
			console.warn('could not load file', file, 'hope it does not break everything else lol')
		}
		processed++
		if (processed % 1000 === 0) {
			console.log('loaded', processed, 'out of', files.length, 'files')
		}
	}
	console.log('done loading files')
}

export function getLastEdit(path: string): string {
	const date = lastEditsCache[path]
	if (!date) {
		throw new Error(`edit date not found for file ${path}`)
	}
	return date
}