From: Chris Duncan <chris@codecow.com>
Date: Thu, 9 Apr 2026 21:37:05 +0000 (-0700)
Subject: Refactor cache as flat module instead of static class.
X-Git-Url: https://git.codecow.com/?a=commitdiff_plain;h=2c7bebf6b630a3e7a72690f4104e144a8dd464ac;p=nano-pow.git

Refactor cache as flat module instead of static class.
---

diff --git a/src/utils/cache.ts b/src/utils/cache.ts
index 03d0fd8..faa4609 100644
--- a/src/utils/cache.ts
+++ b/src/utils/cache.ts
@@ -1,46 +1,50 @@
 //! SPDX-FileCopyrightText: 2025 Chris Duncan <chris@codecow.com>
 //! SPDX-License-Identifier: GPL-3.0-or-later
 
-import { WorkGenerateResponse } from "nano-pow"
+import { WorkGenerateResponse } from 'nano-pow'
 
-export class Cache {
+const STORAGE_KEY = 'NanoPowCache'
 
-	static clear (): void {
-		this.#removeItem('NanoPowCache')
-	}
+let storage: { [key: string]: string } = {}
+
+function getItem (key: string): string | null {
+	if (globalThis?.localStorage) return globalThis.localStorage.getItem(key)
+	return storage[key]
+}
+
+function removeItem (key: string): void {
+	if (globalThis?.localStorage) return globalThis.localStorage.removeItem(key)
+	storage = {}
+}
+
+function setItem (key: string, item: string): void {
+	if (globalThis?.localStorage) return globalThis.localStorage.setItem(key, item)
+	storage[key] = item
+}
+
+export function clear (): void {
+	removeItem(STORAGE_KEY)
+}
 
-	static search (hash: bigint, difficulty: bigint): WorkGenerateResponse | null {
-		const item = this.#getItem('NanoPowCache')
-		if (item) {
-			const cache = JSON.parse(item) as WorkGenerateResponse[]
-			for (const c of cache) {
-				if (BigInt(`0x${c.hash}`) === hash && BigInt(`0x${c.difficulty}`) >= difficulty) {
-					return c
-				}
+export function search (hash: bigint, difficulty: bigint): WorkGenerateResponse | null {
+	const item = getItem(STORAGE_KEY)
+	if (item) {
+		const cache = JSON.parse(item) as WorkGenerateResponse[]
+		for (const c of cache) {
+			if (BigInt(`0x${c.hash}`) === hash && BigInt(`0x${c.difficulty}`) >= difficulty) {
+				return c
 			}
 		}
-		return null
-	}
-
-	static store (result: WorkGenerateResponse): WorkGenerateResponse {
-		const item = this.#getItem('NanoPowCache')
-		const cache = JSON.parse(item ?? '[]') as WorkGenerateResponse[]
-		if (cache.push(result) > 1000) cache.shift()
-		this.#setItem('NanoPowCache', JSON.stringify(cache))
-		return result
 	}
+	return null
+}
 
-	static #storage: { [key: string]: string } = {}
-	static #getItem (key: string): string | null {
-		if (globalThis?.localStorage) return globalThis.localStorage.getItem(key)
-		return this.#storage[key]
-	}
-	static #removeItem (key: string): void {
-		if (globalThis?.localStorage) return globalThis.localStorage.removeItem(key)
-		this.#storage = {}
-	}
-	static #setItem (key: string, item: string): void {
-		if (globalThis?.localStorage) return globalThis.localStorage.setItem(key, item)
-		this.#storage[key] = item
-	}
+export function store (result: WorkGenerateResponse): WorkGenerateResponse {
+	const item = getItem(STORAGE_KEY)
+	const cache = JSON.parse(item ?? '[]') as WorkGenerateResponse[]
+	if (cache.push(result) > 1000) cache.shift()
+	setItem(STORAGE_KEY, JSON.stringify(cache))
+	return result
 }
+
+export const Cache = { clear, search, store }