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TM dat

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

19.07.2021 itibariyledir. En son verisyonu görün.

Bu script direkt olarak kurulamaz. Başka scriptler için bir kütüphanedir ve meta yönergeleri içerir // @require https://update.greasyfork.org/scripts/429255/952068/TM%20dat.js 

// ==UserScript==
// @name			TM dat
// @namespace		https://icelava.root
// @version			0.3.1
// @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
// @grant			GM_deleteValue
// ==/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
}

let raw_dat

const proxy_dat = (dat, map, scm, oldRoot, old = oldRoot) => {
	const lvs = {}
	for (let k in scm.lvs) {
		const s = map(scm.lvs[k])

		s.path = (scm.path ?? "") + "." + k
		s.pathRoot = s.root ? "#" + s.path : scm.pathRoot ?? k
		s.raw = (s.root ? null : scm.raw) ?? (() => dat[k])

		let rec; switch (s.ty) {
		case "object":
			dat[k] = {}; rec = true
			break
		case "tuple":
			s.lvs = s.lvs.map(i => Array.from({ length: i.repeat ?? 1 }, () => JSON.parse(JSON.stringify(i)))).flat()
			dat[k] = []; rec = true
			break
		default:
			lvs[k] = dat[k] = (s.root ? oldRoot[s.pathRoot] : old?.[k]) ?? s.dft
			break
		}
		if (rec) lvs[k] = proxy_dat(dat[k], map, s, oldRoot, old?.[k])
	}
	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, map }) => {
	if (raw_dat) err("Error", `Dat cannot be loaded multiple times.`)
	raw_dat = {}

	if (autoSave) window.addEventListener("beforeunload", () => save_dat())

	return proxy_dat(
		raw_dat,
		map ?? (s => s),
		{ lvs },
		old ?? GM_listValues().reduce((o, k) => (
			o[k] = JSON.parse(GM_getValue(k) ?? "null"), o
		), {})
	)
}

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

const clear_dat = () => {
	raw_dat = null
	GM_listValues().forEach(GM_deleteValue)
}

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