☰

TM dat

Nested, type secure and auto saving data proxy on Tampermonkey.

Od 15.07.2021.. Pogledajte najnovija verzija.

Ovu skriptu ne treba izravno instalirati. To je biblioteka za druge skripte koje se uključuju u meta direktivu // @require https://update.greasyfork.org/scripts/429255/950880/TM%20dat.js 

// ==UserScript==
// @name			TM dat
// @namespace		https://icelava.root
// @version			0.2.1
// @description		Nested, type secure and auto saving data proxy on Tampermonkey.
// @author			ForkKILLET
// @match			localhost:1633/*
// @noframes
// @icon			data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
// @grant			unsafeWindow
// @grant			GM_listValues
// @grant			GM_getValue
// @grant			GM_setValue
// ==/UserScript==

"use strict"

const err = (t, m) => { throw window[t](`[TM dat] ${m}`) }

const type_dat = v =>
	v === null		  ? "null"   :
	v instanceof Array  ? "array"  :
	v instanceof RegExp ? "regexp" :
	typeof v

type_dat.convert = {
	string_number:  v => + v,
	string_regexp:  v => v,
	number_string:  v => "" + v,
	number_boolean: v => !! v
}

const proxy_dat = (dat, scm, oldRoot, old = oldRoot) => {
	const lvs = {}
	for (let k in scm.lvs) {
		const s = scm.lvs[k]
		s.path = (scm.path ?? "") + (s.root ? "!" : ".") + k
		s.pathRoot = s.root ? "!" + s.path : scm.pathRoot ?? k
		s.raw = (s.root ? null : scm.raw) ?? (() => dat[k])

		switch (s.ty) {
		case "object":
			lvs[k] = proxy_dat(dat[k] = {}, s, oldRoot, old[k])
			break
		case "tuple":
			s.lvs = s.lvs.map(i => Array.from({ length: i.repeat ?? 1 }, () => i)).flat()
			lvs[k] = proxy_dat(dat[k] = [], s, oldRoot, old[k])
			break
		default:
			lvs[k] = dat[k] = (s.root ? oldRoot[s.pathRoot] : old[k]) ?? s.dft
			break
		}
	}
	return new Proxy(lvs, {
		get: (_, k) => lvs[k],
		set: (_, k, v) => {
			const s = scm.lvs[k]
			const eF = `Field @ ${s.path}`, eS = "Failed strictly."
			if (s.locked) err("TypeError", eF + ` is locked, but was attempted to write.`)

			if (s.ty === "enum" && ! s.vals.includes(v)) {
				err("TypeError", eF + ` requires to be in the enum { ${ s.vals.join(", ") } }, but got ${v}.`)
			}

			const ty = type_dat(v)
			if (! [ "any", "enum" ].includes(s.ty) && ty !== s.ty) {
				const eM = eF + ` requires type ${s.ty}, but got ${ty}: ${v}. `
				if (s.strict) err("TypeError", eM + eS)
				const f = type_dat.convert[`${ty}_${s.ty}`]
				if (f) v = f(v)
				else err("TypeError", eM + "Failed to convert.")
			}

			if (s.ty === "number") {
				let eR = eF + ` requires to be in the range [ ${s.min ??= -Infinity}, ${s.max ??= +Infinity} ], but got ${v}. `
				if (v < s.min || v > s.max) err("RangeError", eR)

				if (s.int) {
					if (s.strict) err("RangeError", eF + ` requires to be an integer. ` + eS)
					v = ~~ v
				}
			}

			lvs[k] = dat[k] = v
			if (s.quick || s.root) GM_setValue(s.pathRoot, JSON.stringify(s.raw()))
		}
	})
}

const load_dat = (lvs, autoSave, old) => {
	const dat = {}; load_dat.dat = dat
	if (autoSave) window.addEventListener("beforeunload", () => save_dat())
	return proxy_dat(dat, { lvs },
		old ?? GM_listValues().reduce((o, k) => (
			o[k] = JSON.parse(GM_getValue(k) ?? "null"), o
		), {})
	)
}

const save_dat = (dat = load_dat.dat) => {
	Object.keys(dat).forEach(k => GM_setValue(k, JSON.stringify(dat[k])))
}

if (location.host === "localhost:1633") Object.assign(unsafeWindow, {
	TM_dat: { type_dat, proxy_dat, load_dat, save_dat }
})