diff --git a/.gitea/workflows/build.yaml b/.gitea/workflows/build.yaml
index 7e64112..349d978 100644
--- a/.gitea/workflows/build.yaml
+++ b/.gitea/workflows/build.yaml
@@ -7,6 +7,7 @@ on:
   push:
     branches:
       - main
+      - develop
     tags-ignore:
       - 'v*'
 
@@ -17,10 +18,13 @@ jobs:
     steps:
     - name: Check out repository
       uses: actions/checkout@v4.1.2
+    - name: Read package version
+      uses: tyankatsu0105/read-package-version-actions@v1
+      id: version
     - name: Install dependencies
       run: bun install
     - name: Test project
-      run: bun test
+      run: bun test --define __VERSION__='${{ steps.version.outputs.version }}' --define __EXTENSION_NAME='"tf2wikipricing"'
     - name: Build project
       run: bun run build
     - name: Archive production artifacts
diff --git a/.gitea/workflows/release.yaml b/.gitea/workflows/release.yaml
index 4d9cd91..08d1dce 100644
--- a/.gitea/workflows/release.yaml
+++ b/.gitea/workflows/release.yaml
@@ -22,7 +22,7 @@ jobs:
     - name: Test project
       run: bun test
     - name: Build project
-      run: bun run build
+      run: bun run build --mode production
     - name: Archive production artifacts
       uses: actions/upload-artifact@v3
       with:
diff --git a/__tests__/formatting.test.ts b/__tests__/formatting.test.ts
new file mode 100644
index 0000000..a2b2bbc
--- /dev/null
+++ b/__tests__/formatting.test.ts
@@ -0,0 +1,49 @@
+import { describe, it, expect, test, jest, mock, beforeEach } from "bun:test";
+import { formatPrice } from '../src/content/utils/formatting';
+import { $T } from '../src/content/utils/localization';
+
+mock.module('../src/content/utils/localization', () => ({
+    $T: mock((str) => str)
+}));
+
+mock.module('../src/content/config', () => ({
+    conversion_ref_usd: 0.05 // Mock conversion rate
+}))
+
+describe('formatPrice', () => {
+    beforeEach(() => {
+      jest.clearAllMocks()
+    });
+
+    test('formats price with keys and metal', () => {
+        expect(formatPrice(2, 10, 50)).toBe('2.2 keys (US$5.50)');
+        expect($T).toHaveBeenCalledWith('%@ keys');
+    });
+
+    test('formats price with metal only', () => {
+        expect(formatPrice(0, 15.75, 50)).toBe('15.75 ref (US$0.79)');
+    });
+
+    test('formats price with metal only and whole number', () => {
+        expect(formatPrice(0, 3, 50)).toBe('3 ref (US$0.16)');
+    });
+
+    test('uses singular key form', () => {
+        expect(formatPrice(1, 0, 50)).toBe('1 key (US$2.50)');
+        expect($T).toHaveBeenCalledWith('%@ key');
+    });
+
+    test('rounds USD up to nearest cent', () => {
+        expect(formatPrice(3, 7.33, 35)).toBe('3.21 keys (US$5.62)');  // (3 * 35 + 7.33) * 0.05 = 5.6165 → 5.62
+    });
+
+    test('handles different locale formatting', () => {
+        expect(formatPrice(2, 10, 50, 'de')).toMatch(/2,2 keys \(US\$5,50\)/);
+        expect(formatPrice(0, 15.75, 50, 'de')).toMatch(/15,75 ref \(US\$0,79\)/);
+    });
+
+    test('handles zero values', () => {
+        expect(formatPrice(0, 0, 50)).toBe('0 ref (US$0.00)');
+        expect(formatPrice(0, 0, 50, 'de')).toMatch(/0 ref \(US\$0,00\)/);
+    });
+});
\ No newline at end of file
diff --git a/__tests__/localization.test.ts b/__tests__/localization.test.ts
new file mode 100644
index 0000000..0f929ed
--- /dev/null
+++ b/__tests__/localization.test.ts
@@ -0,0 +1,20 @@
+import { describe, it, expect, jest, beforeEach } from "bun:test";
+import { extractLocaleFromURL } from '../src/content/utils/localization'
+
+beforeEach(() => {
+  jest.clearAllMocks()
+})
+
+describe('localization', () => {
+  it('should assume `en` if no locale is specified', async () => {
+    expect(extractLocaleFromURL('https://wiki.teamfortress.com/wiki/Team_Fortress_2')).toBe('en')
+  })
+
+  it('should extract locale shortcode from URL correctly', async () => {
+    expect(extractLocaleFromURL('https://wiki.teamfortress.com/wiki/Phlogistinator/de')).toBe('de')
+  })
+
+  it('should extract locale shortcode with special characters from URL correctly', async () => {
+    expect(extractLocaleFromURL('https://wiki.teamfortress.com/wiki/%C3%9CberCharge/zh-hans')).toBe('zh-hans')
+  })
+})
\ No newline at end of file
diff --git a/__tests__/priceService.test.ts b/__tests__/priceService.test.ts
new file mode 100644
index 0000000..b9c421d
--- /dev/null
+++ b/__tests__/priceService.test.ts
@@ -0,0 +1,109 @@
+import { describe, expect, test, jest, mock, beforeEach } from "bun:test";
+import { ItemPriceData, fetchPrice, fetchKeyPrice } from '../src/content/priceService'
+import { PricesResponse, priceUsingPricesTF } from '../src/content/pricing/pricestf'
+import { getStorageValue, setStorageValue } from '../src/content/storage'
+import { defindex_key } from "../src/content/config";
+
+// Mock the storage module
+mock.module('../src/content/storage', () => ({
+  getStorageValue: jest.fn(),
+  setStorageValue: jest.fn()
+}))
+
+// Mock the pricing module
+mock.module('../src/content/pricing/pricestf', () => ({
+  priceUsingPricesTF: jest.fn()
+}))
+
+describe('Price Service', () => {
+  const mockToken = 'test-token'
+  const mockDefIndex = 105 // Brigade Helm
+  const mockQuality = 11 // Strange
+  const mockSku = `${mockDefIndex};${mockQuality}`
+  const mockDate = new Date()
+  const mockTtl = 30 * 60 * 1000 // 30 minutes
+
+  const mockPriceResponse: PricesResponse = {
+    keys: 1,
+    metal: 21.33
+  }
+
+  const mockKeyPriceResponse: PricesResponse = {
+    keys: 0,
+    metal: 60.11
+  }
+
+  const mockCachedData: ItemPriceData = {
+    sku: mockSku,
+    update: new Date(Date.now() - 15 * 60 * 1000), // 15 minutes ago
+    ttl: mockTtl,
+    keys: 1,
+    metal: 21.11,
+    scmPrice: 0
+  }
+
+  beforeEach(() => {
+    jest.clearAllMocks()
+  })
+
+  test('fetchPrice returns cached data if available and not expired', async () => {
+    (getStorageValue as jest.Mock).mockResolvedValue(mockCachedData)
+
+    const result = await fetchPrice(mockToken, mockDefIndex, mockQuality)
+
+    expect(getStorageValue).toHaveBeenCalledWith(expect.stringContaining(mockSku), null)
+    expect(result).toEqual(mockCachedData)
+  })
+
+  test('fetchPrice fetches new data when cache is expired', async () => {
+    const expiredCache: ItemPriceData = { ...mockCachedData, update: new Date(Date.now() - 2 * mockTtl) };
+    (getStorageValue as jest.Mock).mockResolvedValue(expiredCache);
+    (priceUsingPricesTF as jest.Mock).mockResolvedValue(mockPriceResponse)
+
+    const result = await fetchPrice(mockToken, mockDefIndex, mockQuality)
+
+    expect(priceUsingPricesTF).toHaveBeenCalledWith(mockToken, mockDefIndex, mockQuality)
+    expect(setStorageValue).toHaveBeenCalled()
+    expect(result.metal).not.toBe(mockCachedData.metal)
+    expect(result.metal).toBe(mockPriceResponse.metal)
+  })
+
+  test('fetchPrice rejects with 401 when no token provided', async () => {
+    await expect(fetchPrice('', mockDefIndex, mockQuality)).rejects.toBe(401)
+  })
+
+  test('fetchPrice handles pricing API errors', async () => {
+    const testError = 500;
+    (priceUsingPricesTF as jest.Mock).mockRejectedValue(testError);
+    (getStorageValue as jest.Mock).mockResolvedValue(null)
+
+    await expect(fetchPrice(mockToken, mockDefIndex, mockQuality)).rejects.toBe(testError)
+  })
+
+  test('fetchKeyPrice uses correct parameters', async () => {
+    (getStorageValue as jest.Mock).mockResolvedValue(null);
+    (priceUsingPricesTF as jest.Mock).mockResolvedValue(mockKeyPriceResponse)
+
+    const result = await fetchKeyPrice(mockToken)
+
+    expect(priceUsingPricesTF).toHaveBeenCalledWith(mockToken, defindex_key, 6)
+    expect(result.keys).toBe(0) // A key cannot cost a key :P
+    expect(result.metal).toBe(mockKeyPriceResponse.metal)
+  })
+
+  test('ItemPriceData.toString() returns formatted string', () => {
+    const data = new ItemPriceData()
+    data.sku = mockSku
+    data.update = mockDate
+    data.ttl = mockTtl
+    data.keys = 1
+    data.metal = 10.66
+    data.scmPrice = 2.68
+
+    const result = data.toString()
+    expect(result).toContain(`Price for ${mockSku}`)
+    expect(result).toContain(`"keys":${data.keys}`)
+    expect(result).toContain(`"metal":${data.metal}`)
+    expect(result).toContain(`"scmPrice":${data.scmPrice}`)
+  })
+})
diff --git a/__tests__/schema.test.ts b/__tests__/schema.test.ts
new file mode 100644
index 0000000..2f34c1d
--- /dev/null
+++ b/__tests__/schema.test.ts
@@ -0,0 +1,33 @@
+import { describe, expect, test } from "bun:test";
+import { ItemSchema, getItemIndexByName, getTradableStatusByDefindex, getTradableStatusByName} from '../src/content/schemaService'
+
+const mockSchema: ItemSchema = {
+    '21': { name: 'Flame Thrower', tradable: false },
+    '208': { name: 'Flame Thrower', tradable: true },
+    '5021': { name: 'Mann Co. Supply Crate Key', tradable: true },
+    '15141': { name: 'Flame Thrower', tradable: true },
+    '69420': { name: 'Non-Tradable Item', tradable: false }
+}
+
+describe('Schema Service', () => {
+
+    test('getItemIndexByName returns correct defindex', () => {
+        expect(getItemIndexByName(mockSchema, 'Flame Thrower')).toBe(208)
+        expect(getItemIndexByName(mockSchema, 'Mann Co. Supply Crate Key')).toBe(5021)
+        expect(getItemIndexByName(mockSchema, 'Non-Existent Item')).toBeNull()
+    })
+
+    test('getTradableStatusByDefindex returns correct status', () => {
+        expect(getTradableStatusByDefindex(mockSchema, 208)).toBe(true)
+        expect(getTradableStatusByDefindex(mockSchema, 5021)).toBe(true)
+        expect(getTradableStatusByDefindex(mockSchema, 69420)).toBe(false)
+        expect(() => getTradableStatusByDefindex(mockSchema, 999)).toThrow()
+    })
+
+    test('getTradableStatusByName returns correct status', () => {
+        expect(getTradableStatusByName(mockSchema, 'Flame Thrower')).toBe(true)
+        expect(getTradableStatusByName(mockSchema, 'Mann Co. Supply Crate Key')).toBe(true)
+        expect(getTradableStatusByName(mockSchema, 'Non-Tradable Item')).toBe(false)
+        expect(getTradableStatusByName(mockSchema, 'Non-Existent Item')).toBe(true)
+    })
+})
\ No newline at end of file
diff --git a/__tests__/url.test.ts b/__tests__/url.test.ts
new file mode 100644
index 0000000..4129b5d
--- /dev/null
+++ b/__tests__/url.test.ts
@@ -0,0 +1,28 @@
+import { extractPageTitleFromURL } from '../src/content/utils/url';
+
+describe('extractPageTitleFromURL', () => {
+  it('extracts simple title from URL', () => {
+    const url = 'https://wiki.teamfortress.com/wiki/Scattergun';
+    expect(extractPageTitleFromURL(url)).toBe('Scattergun');
+  });
+
+  it('replaces underscores with spaces', () => {
+    const url = 'https://wiki.teamfortress.com/wiki/Flame_Thrower';
+    expect(extractPageTitleFromURL(url)).toBe('Flame Thrower');
+  });
+
+  it('decodes URI components', () => {
+    const url = 'https://wiki.teamfortress.com/wiki/Dragon%27s_Fury';
+    expect(extractPageTitleFromURL(url)).toBe("Dragon's Fury");
+  });
+
+  it('handles special characters', () => {
+    const url = 'https://wiki.teamfortress.com/wiki/Ze_%C3%9Cbermensch';
+    expect(extractPageTitleFromURL(url)).toBe("Ze Übermensch");
+  });
+
+  it('removes language suffix', () => {
+    const url = 'https://wiki.teamfortress.com/wiki/Ze_%C3%9Cbermensch/pt-br';
+    expect(extractPageTitleFromURL(url)).toBe('Ze Übermensch');
+  });
+});
diff --git a/bun.lockb b/bun.lockb
index 4c684dc..5aa90dd 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/bunfig.toml b/bunfig.toml
new file mode 100644
index 0000000..986e271
--- /dev/null
+++ b/bunfig.toml
@@ -0,0 +1,2 @@
+[test]
+preload = "./happydom.ts"
\ No newline at end of file
diff --git a/happydom.ts b/happydom.ts
new file mode 100644
index 0000000..9cae201
--- /dev/null
+++ b/happydom.ts
@@ -0,0 +1,3 @@
+import { GlobalRegistrator } from "@happy-dom/global-registrator";
+
+GlobalRegistrator.register();
\ No newline at end of file
diff --git a/package.json b/package.json
index 1a1e592..9d59646 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,9 @@
 {
   "name": "tf2wikipricing",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "description": "Adds item pricing to the Team Fortress 2 wiki",
   "devDependencies": {
+    "@happy-dom/global-registrator": "^17.4.4",
     "@types/firefox-webext-browser": "^120.0.4",
     "@types/greasemonkey": "^4.0.7",
     "@types/html": "^1.0.4",
diff --git a/src/content/config.ts b/src/content/config.ts
new file mode 100644
index 0000000..41e0477
--- /dev/null
+++ b/src/content/config.ts
@@ -0,0 +1,12 @@
+// Constants
+export const storage_lastUpdateTime = 'tf2wikipricing_lastUpdate';
+export const storage_schema = 'tf2wikipricing_schema';
+export const storage_version = 'tf2wikipricing_version';
+export const storage_priceprefix = 'tf2wikipricing_sku_';
+export const conversion_ref_usd = 0.0265;
+export const defindex_key = 5021;
+export const defindex_metal_refined = 5002;
+export const defindex_metal_reclaimed = 5001;
+export const defindex_metal_scrap = 5000;
+
+export * as config from './config';
\ No newline at end of file
diff --git a/src/content/content.ts b/src/content/content.ts
index aa983e7..066b717 100644
--- a/src/content/content.ts
+++ b/src/content/content.ts
@@ -1,57 +1,17 @@
-import { getStorageValue, setStorageValue } from './storage'
 import styleCss from './style.css'
 
-declare function GM_fetch(input: string | URL | globalThis.Request, init?: RequestInit): Promise<Response>
-import './GM_fetch'
-import { logDebug, log, logError } from './log'
+import { logDebug, log, logError } from './utils/log'
 import { getPricesToken, priceUsingPricesTF } from './pricing/pricestf'
-const semver = require('semver')
-// Globals
 import itemQualities from 'tf2-static-schema/static/qualities.json';
-var itemSchema: { [key: string]: {name: string, tradable: Boolean}; } | null;
+import { getItemIndexByName, getTradableStatusByDefindex, ItemSchema, prepareSchema, wipeSchema } from './schemaService'
+import { $T, extractLocaleFromURL } from './utils/localization'
+import { fetchPrice, fetchKeyPrice, ItemPriceData } from './priceService'
+import { createPriceRow, createStoreButton } from './uiRenderer'
+import { findFirstElement, findFirstChildElement } from './utils/dom'
+import { extractPageTitleFromURL } from './utils/url';
+var itemSchema: ItemSchema | null;
 
-declare const __VERSION__: string;
-
-// Constants
-const storage_lastUpdateTime = 'tf2wikipricing_lastUpdate';
-const storage_schema = 'tf2wikipricing_schema';
-const storage_version = 'tf2wikipricing_version';
-const storage_priceprefix = 'tf2wikipricing_sku_';
-const conversion_ref_usd = 0.0265;
-const defindex_key = 5021;
-const defindex_metal_refined = 5002;
-const defindex_metal_reclaimed = 5001;
-const defindex_metal_scrap = 5000;
-
-/** Pricing data for a given TF2 item. */
-class ItemPriceData {
-	/** Item SKU. */
-	sku: string
-	/** Date updated. */
-	update: Date
-	/** TTL in milliseconds. */
-	ttl: number
-	/** Price in keys. */
-	keys: number
-	/** Price in refined metal. */
-	metal: number
-	/** Steam Community Market price. */
-	scmPrice: number
-
-	toString(): string {
-		return `Price for ${this.sku}, fetched ${this.update} (expires ${this.update.getTime() + this.ttl})\n` + 
-			JSON.stringify({
-				keys: this.keys,
-				metal: this.metal, 
-				scmPrice: this.scmPrice
-			})
-	}
-}
-
-class SteamMarketSearchResult {
-	name: string
-	sell_price: number
-}
+var pageLocale: string = 'en'
 
 /** Exclude these from the pricelist. */
 const excludedQualities = new Set([
@@ -59,99 +19,11 @@ const excludedQualities = new Set([
 	5,  // Unusual
 ]);
 
-const localizations: {[lang: string]: any} = {
-	'en': require('../strings/en'), // English
-	'es': require('../strings/es'), // Spanish
-	// 'ja': require('../strings/ja'), // Japanese
-	// 'it': require('../strings/it'), // Italian
-	// 'ar': require('../strings/ar.json') as object, // Arabic
-	// 'cs': require('../strings/cs.json') as object, // Czech
-	// 'da': require('../strings/da.json') as object, // Danish
-	// 'de': require('../strings/de.json') as object, // German
-	// 'fi': require('../strings/fi.json') as object, // Finnish
-	// 'fr': require('../strings/fr.json') as object, // French
-	// 'hu': require('../strings/hu.json') as object, // Hungarian
-	// 'ko': require('../strings/ko.json') as object, // Korean
-	// 'nl': require('../strings/nl.json') as object, // Dutch
-	// 'no': require('../strings/no.json') as object, // Norwegian Bokmål
-	// 'pl': require('../strings/pl.json') as object, // Polish
-	// 'pt': require('../strings/pt.json') as object, // Portuguese
-	// 'pt-BR': require('../strings/pt-BR.json') as object, // Brazilian Portuguese
-	// 'ro': require('../strings/ro.json') as object, // Romanian
-	// 'ru': require('../strings/ru.json') as object, // Russian
-	// 'sv': require('../strings/sv.json') as object, // Swedish
-	// 'tr': require('../strings/tr.json') as object, // Turkish
-	// 'zh-Hans': require('../strings/zh-Hans.json') as object, // Simplified Chinese
-	// 'zh-Hant': require('../strings/zh-Hant.json') as object, // Traditional Chinese
-}
-
-function $T(s: string, locale?: Intl.LocalesArgument): string {
-	const code = locale ? locale.toString() : extractLocaleFromURL(document.URL)
-	return localizations.hasOwnProperty(code) ? (localizations[code as unknown as keyof object])[s] || s : s;
-}
-
 // Helper functions
-function findFirstElement(selector: string): HTMLElement | null {
-	const elements = document.querySelectorAll(selector);
-	return elements.length > 0 ? elements[0] as HTMLElement : null;
-}
-
-function findFirstChildElement(selector: string, root: Element): HTMLElement | null {
-	const elements = root.querySelectorAll(selector);
-	return elements.length > 0 ? elements[0] as HTMLElement : null;
-}
-
 function getKeyByValue(object: any, value: string) {
 	return Object.keys(object).find(key => object[key] === value);
 }
 
-function extractPageTitleFromURL(url: string): string {
-	var split = url.substring(url.indexOf("/wiki/") + "/wiki/".length);
-	if (split.indexOf('/') != -1) {
-		// Remove language suffix (/es)
-		split = split.substring(0, split.indexOf('/'));
-	}
-	return decodeURIComponent(split.replaceAll('_', ' '));
-}
-
-function extractLocaleFromURL(url: string): string {
-	var split = url.substring(url.indexOf("/wiki/") + "/wiki/".length);
-	if (split.indexOf('/') != -1) {
-		// Remove language suffix e.g. `/es`
-		return split.substring(split.indexOf('/') + 1);
-	} else {
-		return 'en';
-	}
-}
-
-function isDateAfterOneDay(date1: Date, date2: Date): boolean {
-	var diff = date2.getTime() - date1.getTime();
-	var diffDays = Math.round(diff / (1000 * 3600 * 24));
-	return diffDays > 1;
-}
-
-function getItemIndexByName(name: string) {
-	for (const [defindex, value] of Object.entries(itemSchema)) {
-		if (value['name'] == name) {
-			return parseInt(defindex)
-		}
-	}
-	return null
-}
-
-function getTradableStatusByDefindex(defindex: number) {
-	return itemSchema[defindex.toString()].tradable
-}
-
-function getTradableStatusByName(name: string) {
-	for (const [defindex, value] of Object.entries(itemSchema)) {
-		if (value['name'] == name) {
-			return value.tradable
-		}
-	}
-	return true
-}
-
 // Main function
 async function inject() {
 	const itemInfobox = findFirstElement('.item-infobox');
@@ -163,24 +35,10 @@ async function inject() {
 	var itemIndex: number | null = null;
 	var itemName: string | null = null;
 
-	// Try using buy buttons, if they exist
+	// Find buy buttons
 	const buyButton = findFirstChildElement('.btn_buynow', itemInfobox);
 	const marketButton = findFirstChildElement('.btn_buynow_market', itemInfobox);
 
-	if(buyButton) {
-		const link = (buyButton.parentElement as HTMLLinkElement);
-		if(link && link.href) {
-			itemIndex = parseInt(link.href.replace('https://store.steampowered.com/buyitem/440/', ''));
-		}
-	}
-
-	if(!itemIndex && marketButton) {
-		const link = (marketButton.parentElement as HTMLLinkElement);
-		if(link && link.href) {
-			itemIndex = parseInt(link.href.replace('https://steamcommunity.com/market/search/?q=appid:440+prop_def_index:', ''));
-		}
-	}
-
 	// Try using item name
 	const header = findFirstChildElement('.infobox-header', itemInfobox);
 	if (!itemIndex && header) {
@@ -196,7 +54,24 @@ async function inject() {
 		const url = document.URL;
 
 		if (itemName && !itemIndex) {
-			itemIndex = getItemIndexByName(itemName)
+			itemIndex = getItemIndexByName(itemSchema, itemName)
+		}
+	}
+
+	// Try using buy buttons, if they exist
+	if(!itemIndex) {
+		if(buyButton) {
+			const link = (buyButton.parentElement as HTMLLinkElement);
+			if(link && link.href) {
+				itemIndex = parseInt(link.href.replace('https://store.steampowered.com/buyitem/440/', ''));
+			}
+		}
+
+		if(!itemIndex && marketButton) {
+			const link = (marketButton.parentElement as HTMLLinkElement);
+			if(link && link.href) {
+				itemIndex = parseInt(link.href.replace('https://steamcommunity.com/market/search/?q=appid:440+prop_def_index:', ''));
+			}
 		}
 	}
 
@@ -213,7 +88,7 @@ async function inject() {
 
 	log(`Starting lookup for ${itemName} (defindex ${itemIndex})`);
 
-	if(getTradableStatusByDefindex(itemIndex) == false) {
+	if(getTradableStatusByDefindex(itemSchema, itemIndex) == false) {
 		log(`${itemName} is not tradable, exiting`)
 		return;
 	}
@@ -329,45 +204,6 @@ async function inject() {
 		const qualifiedName = ((quality != 6 ? itemQualities[quality as unknown as keyof typeof itemQualities].toString() : '') + ' ' + itemName).trim()
 		// logDebug(`Fetching price for ${qualifiedName}`)
 
-		/*
-		var data: ItemPriceData | null;
-		const cached = await getStorageValue(storage_priceprefix + sku, null)
-		if (cached != null && 'keys' in cached && 'metal' in cached) {
-			data = cached
-		}
-		if (!data || 'update' in data && 'ttl' in data && Date.now() > (new Date(data.update).getTime() + data.ttl)) {
-			data = new ItemPriceData()
-			data.sku = sku
-			data.update = new Date()
-			data.ttl = (5 * 60 * 1000) // Cache results for 5 minutes
-
-			// logDebug(JSON.stringify(steamMarketResults))
-			// const scmResult = steamMarketResults.find((x: object) => { x['name' as keyof object] === qualifiedName})
-			// logDebug(JSON.stringify(scmResult))
-			// if(scmResult) {
-			// 	data.scmPrice = scmResult.sell_price / 100
-			// }
-
-			try {
-				const response = await priceUsingPricesTF(token, itemIndex, quality)
-				if (response) {
-					data.keys = response.keys
-					data.metal = response.metal
-				}
-			} catch (error) {
-				log(`Received ${error} error while pricing ${sku} using prices.tf`)
-			}
-
-			if ('keys' in data && 'metal' in data) {
-				await setStorageValue(storage_priceprefix + sku, data)
-			}
-			logDebug(JSON.stringify(data));
-			updateTime = new Date(data.update)
-		} else {
-			logDebug(`Using cached data for ${sku}, expires ${new Date(data.update).getTime() + data.ttl}`);
-			updateTime = new Date(data.update)
-		}
-		*/
 		var data: ItemPriceData | null
 		try {
 			data = await fetchPrice(token, itemIndex, quality, currentTime);
@@ -376,24 +212,8 @@ async function inject() {
 			log(`${qualifiedName} is unpriced or unavailable, skipping...`)
 		}
 
-		const priceRow = document.createElement("tr");
-
-		const priceLabel = document.createElement("td");
-		priceLabel.className = "infobox-label";
-		const priceLabelLink = document.createElement("a");
 		const qualityName = itemQualities[quality as unknown as keyof typeof itemQualities].toString()
-		priceLabelLink.href = locale === 'en' ? `https://wiki.teamfortress.com/wiki/${qualityName}` : `https://wiki.teamfortress.com/wiki/${qualityName}/${locale}` 
-		priceLabelLink.innerText = $T(qualityName)
-		priceLabel.appendChild(priceLabelLink);
-		priceLabel.innerHTML += ':'
-		priceRow.appendChild(priceLabel);
-
-		const priceData = document.createElement("td");
-		const priceLink = document.createElement("span");
-		const priceString = data ? formatPrice(data.keys, data.metal, keyPrice.metal).trim() : $T('Data unavailable')
-		priceLink.innerHTML = priceString // + `<br>$${data.scmPrice}`
-		priceData.appendChild(priceLink);
-		priceRow.appendChild(priceData);
+		const priceRow = createPriceRow(qualityName, data, keyPrice, locale)
 
 		priceRows.push({quality: quality, row: priceRow})
 	})
@@ -428,170 +248,6 @@ async function inject() {
 	})
 }
 
-function createStoreButton(storeName: string, url: URL) {
-	const button = document.createElement("tr")
-	var source = `<td colspan="2" class="infobox-data" style="text-align:center"><div class="plainlinks btn_wrapper" style="width:100%"><a rel="nofollow" class="external text" href="{link}" target="_blank"><span class="btn_buynow_addon_${storeName.replaceAll('.', '')}">{title}<span></span></span></a></div></td>`
-	source = source.replace("{link}", url.toString())
-	source = source.replace("{title}", $T("View listings on %@").replace('%@', storeName))
-	button.innerHTML = source
-	return button
-}
-
-async function fetchKeyPrice(token: string) {
-	return fetchPrice(token, defindex_key, 6, new Date(), 86400000)
-}
-
-/**
- * Fetch a price for a given SKU, using cached values if available.
- * @param token prices.tf access token.
- * @param update Date retrieved.
- * @param ttl Time to cache results in milliseconds. 30 minutes by default.
- */
-async function fetchPrice(token: string, defIndex: number, quality: number, update: Date = new Date(), ttl: number = 30 * 60 * 1000): Promise<ItemPriceData> {
-	return new Promise(async (resolve, reject) => {
-		const sku = defIndex.toString() + ";" + quality.toString();
-		var data: ItemPriceData | null
-
-		const cached = await getStorageValue(storage_priceprefix + sku, null)
-		if (cached != null && 'keys' in cached && 'metal' in cached) {
-			data = cached
-		}
-
-		if (!data || data.sku != sku || 'update' in data && 'ttl' in data && Date.now() > (new Date(data.update).getTime() + data.ttl)) {
-			logDebug(`Fetching price data for ${sku}`)
-			if(!token) {
-				reject(401)
-			}
-			data = new ItemPriceData()
-			data.sku = sku
-			data.update = update
-			data.ttl = ttl
-
-			try {
-				const response = await priceUsingPricesTF(token, defIndex, quality)
-				if (response) {
-					data.keys = response.keys
-					data.metal = response.metal
-				}
-			} catch (error) {
-				log(`Received ${error} error while pricing ${sku} using prices.tf`)
-				reject(error)
-			}
-
-			if ('metal' in data && 'keys' in data) {
-				await setStorageValue(storage_priceprefix + sku, data)
-			}
-		} else {
-			logDebug(`Using cached price data for ${sku}`)
-		}
-		resolve(data)
-	})
-}
-
-async function getSteamResults(itemName: string) {
-	logDebug(`Making network request to Steam for ${itemName}`)
-	const response = await GM_fetch(`https://steamcommunity.com/market/search/render?appid=440&norender=true&count=10&query=${encodeURIComponent(itemName)}`, {
-		method: 'get',
-		headers: new Headers({
-			'Accept': 'application/json'
-		})
-	})
-	if (response.status === 200) {
-		const json = await response.json();
-		return json['results']
-	}
-	return []
-}
-
-function toFixed(num: number, fixed: number) {
-	var re = new RegExp('^-?\\d+(?:\.\\d{0,' + (fixed || -1) + '})?');
-	return num.toString().match(re)[0];
-}
-
-var pageLocale: string = 'en'
-
-function formatPrice(keys: number, metal: number, keyPrice: number) {
-	const pureMetal = (keys * keyPrice) + metal;
-	const formattedKeys = +(keys + (metal / keyPrice)).toFixed(2)
-
-	var output: string = ''
-	if(keys > 0) {
-		output += (formattedKeys == 1.0 ? $T("%@ key") : $T("%@ keys")).replace('%@', formattedKeys.toLocaleString(pageLocale))
-	} else {
-		output += `${(+toFixed(metal, 2)).toLocaleString(pageLocale)} ref`
-	}
-	const currencyFormatter = new Intl.NumberFormat(pageLocale, {
-		minimumFractionDigits: 2,      
-		maximumFractionDigits: 2,
- 	});
-
-	// Round price up to nearest cent
- 	const price = Math.ceil(pureMetal * conversion_ref_usd * 100) / 100
-	output += ` (US$${currencyFormatter.format(price)})`
-	return output;
-}
-
-async function prepareSchema() {
-	var needsUpdate: Boolean = false
-
-	const storedVersion: string | null = await getStorageValue(storage_version, null)
-	if(!storedVersion || !semver.valid(storedVersion)) {
-		log(`Cache is from an unknown version of the extension. Updating for version ${__VERSION__}`);
-		needsUpdate = true
-	} else if(semver.valid(storedVersion) && semver.lt(storedVersion, __VERSION__)) {
-		log(`Cache is from a previous version (${storedVersion}) of the extension. Updating for version ${__VERSION__}`);
-		needsUpdate = true
-	} else {
-		itemSchema = await getStorageValue(storage_schema, null);
-	}
-
-	const update = await getStorageValue(storage_lastUpdateTime, null)
-	if (update) {
-		log(`Item schema updated at ${new Date(update)}`);
-		const lastUpdateTime = new Date(update);
-		if (!itemSchema || isDateAfterOneDay(lastUpdateTime, new Date())) {
-			needsUpdate = true
-		}
-	}
-
-	if(needsUpdate) {
-		log("Item Schema out of Date. Rebuilding...");
-		const url = "https://raw.githubusercontent.com/danocmx/node-tf2-static-schema/master/static/items.json"
-		const response = await GM_fetch(url);
-		if (response.ok) {
-			await setStorageValue(storage_lastUpdateTime, new Date().getTime());
-
-			var cacheItems = {}
-
-			var responseItems: any[] = await response.json()
-			// We want to keep the keys `defindex`, `item_name`, and `attributes`
-			responseItems.forEach((item: any) => {
-				const defindex = item['defindex']
-				const name = item['item_name']
-				var tradable: Boolean = true
-				try {
-					if(item['attributes'] != null) {
-						if(item['attributes'].find((attribute: {}) => (attribute as any)['class'] == "cannot_trade")) { 
-							tradable = false
-						}
-					}
-				} catch(error) {
-					logError(error)
-					log(item)
-				}
-				(cacheItems as any)[defindex.toString()] = { "name": name, "tradable": tradable }
-			});
-			
-			await setStorageValue(storage_schema, (cacheItems));
-			itemSchema = cacheItems
-			await setStorageValue(storage_version, __VERSION__);
-			logDebug(`Item schema updated at ${new Date()}`)
-		} else {
-			logError("Could not fetch item schema.");
-		}
-	}
-}
-
 function addStyles() {
 	const head = document.head || document.getElementsByTagName('head')[0],
 		style = document.createElement('style');
@@ -599,9 +255,11 @@ function addStyles() {
 	style.innerHTML = styleCss;
 }
 
-prepareSchema().then(function () {
+prepareSchema().then(function (schema) {
+	itemSchema = schema;
 	if (!itemSchema) {
 		logError("No item schema ready, exiting.");
+		wipeSchema(); // FIXME: ugly hack. requires additional page reload. if prepareSchema returns null, we should handle it properly
 		return;
 	}
 	pageLocale = extractLocaleFromURL(document.URL)
diff --git a/src/content/priceService.ts b/src/content/priceService.ts
new file mode 100644
index 0000000..fd40e0d
--- /dev/null
+++ b/src/content/priceService.ts
@@ -0,0 +1,81 @@
+import { defindex_key, storage_priceprefix } from "./config"
+import { priceUsingPricesTF } from "./pricing/pricestf"
+import { getStorageValue, setStorageValue } from "./storage"
+import { logDebug, log } from "./utils/log"
+
+/** Pricing data for a given TF2 item. */
+export class ItemPriceData {
+	/** Item SKU. */
+	sku: string
+	/** Date updated. */
+	update: Date
+	/** TTL in milliseconds. */
+	ttl: number
+	/** Price in keys. */
+	keys: number
+	/** Price in refined metal. */
+	metal: number
+	/** Steam Community Market price. */
+	scmPrice: number
+
+	toString(): string {
+		return `Price for ${this.sku}, fetched ${this.update} (expires ${this.update.getTime() + this.ttl})\n` + 
+			JSON.stringify({
+				keys: this.keys,
+				metal: this.metal,
+				scmPrice: this.scmPrice
+			})
+	}
+}
+
+
+export async function fetchKeyPrice(token: string) {
+	return fetchPrice(token, defindex_key, 6, new Date(), 86400000)
+}
+
+/**
+ * Fetch a price for a given SKU, using cached values if available.
+ * @param token prices.tf access token.
+ * @param update Date retrieved.
+ * @param ttl Time to cache results in milliseconds. 30 minutes by default.
+ */
+export async function fetchPrice(token: string, defIndex: number, quality: number, update: Date = new Date(), ttl: number = 30 * 60 * 1000): Promise<ItemPriceData> {
+	return new Promise(async (resolve, reject) => {
+		const sku = defIndex.toString() + ";" + quality.toString();
+		var data: ItemPriceData | null
+
+		const cached = await getStorageValue(storage_priceprefix + sku, null)
+		if (cached != null && 'keys' in cached && 'metal' in cached) {
+			data = cached
+		}
+
+		if (!data || data.sku != sku || 'update' in data && 'ttl' in data && Date.now() > (new Date(data.update).getTime() + data.ttl)) {
+			logDebug(`Fetching price data for ${sku}`)
+			if(!token) {
+				reject(401)
+			}
+			data = new ItemPriceData()
+			data.sku = sku
+			data.update = update
+			data.ttl = ttl
+
+			try {
+				const response = await priceUsingPricesTF(token, defIndex, quality)
+				if (response) {
+					data.keys = response.keys
+					data.metal = response.metal
+				}
+			} catch (error) {
+				log(`Received ${error} error while pricing ${sku} using prices.tf`)
+				reject(error)
+			}
+
+			if ('metal' in data && 'keys' in data) {
+				await setStorageValue(storage_priceprefix + sku, data)
+			}
+		} else {
+			logDebug(`Using cached price data for ${sku}`)
+		}
+		resolve(data)
+	})
+}
diff --git a/src/content/pricing/pricestf.ts b/src/content/pricing/pricestf.ts
index 4f83674..cdb273b 100644
--- a/src/content/pricing/pricestf.ts
+++ b/src/content/pricing/pricestf.ts
@@ -25,8 +25,17 @@ class PricesResponse {
 }
 
 /**
- * Price the given item using https://prices.tf
- * @return 
+ * Fetches the current price data for Team Fortress 2 items from prices.tf.
+ *
+ * This function authenticates with the prices.tf API using the provided token,
+ * and uses it to fetch the latest pricing data for the given item in keys and metal.
+ *
+ * @example
+ * const price = await priceUsingPricesTF(token, 105, 11);
+ * console.log("Strange Brigade Helm price: ${price.keys} keys ${price.metal} metal")
+ *
+ * @returns {Promise<PricesResponse>} Object containing 'keys' and 'metal' prices
+ * @throws When authentication fails or API returns non-200 status code
  */
 async function priceUsingPricesTF(token: string, defIndex: number, quality: number): Promise<PricesResponse> {
   // prices.tf
@@ -37,7 +46,6 @@ async function priceUsingPricesTF(token: string, defIndex: number, quality: numb
       reject(401)
     }
     const sku = defIndex + ";" + quality;
-    // logDebug(`Making network request to prices.tf for ${sku}`)
     var response = await GM_fetch(`https://api2.prices.tf/prices/${encodeURIComponent(sku)}`, {
       method: 'get',
       headers: new Headers({
@@ -64,4 +72,4 @@ async function priceUsingPricesTF(token: string, defIndex: number, quality: numb
   })
 }
 
-export { getPricesToken, priceUsingPricesTF }
\ No newline at end of file
+export { getPricesToken, priceUsingPricesTF, PricesResponse }
\ No newline at end of file
diff --git a/src/content/schemaService.ts b/src/content/schemaService.ts
new file mode 100644
index 0000000..1c6e847
--- /dev/null
+++ b/src/content/schemaService.ts
@@ -0,0 +1,115 @@
+import { getStorageValue, setStorageValue } from './storage'
+import { logDebug, log, logError } from './utils/log'
+import './config'
+declare function GM_fetch(input: string | URL | globalThis.Request, init?: RequestInit): Promise<Response>
+import './GM_fetch'
+import { storage_version, storage_schema, storage_lastUpdateTime } from './config'
+const semver = require('semver')
+
+export declare const __VERSION__: string;
+
+function isDateAfterOneDay(date1: Date, date2: Date): boolean {
+	var diff = date2.getTime() - date1.getTime();
+	var diffDays = Math.round(diff / (1000 * 3600 * 24));
+	return diffDays > 1;
+}
+
+export class ItemSchema { [key: string]: {name: string, tradable: Boolean}; }
+
+export function getItemIndexByName(schema: ItemSchema, name: string, excludeStock: Boolean = true, excludeDecorated: Boolean = true) {
+	for (const [defindex, value] of Object.entries(schema)) {
+		if (value['name'] == name) {
+			const index = parseInt(defindex)
+			if(excludeStock && index <= 30) continue
+			if(excludeDecorated && (index >= 15000 && index < 16000)) continue
+			return index
+		}
+	}
+	return null
+}
+
+export function getTradableStatusByDefindex(schema: ItemSchema, defindex: number) {
+	return schema[defindex.toString()].tradable
+}
+
+export function getTradableStatusByName(schema: ItemSchema, name: string, excludeStock: Boolean = true, excludeDecorated = true,) {
+	for (const [defindex, value] of Object.entries(schema)) {
+		if (value['name'] == name) {
+			const index = parseInt(defindex)
+			if(excludeStock && index <= 30) continue
+			if(excludeDecorated && (index >= 15000 && index < 16000)) continue
+			return value.tradable
+		}
+	}
+	return true
+}
+
+export async function wipeSchema(): Promise<void> {
+	await setStorageValue(storage_version, __VERSION__)
+	await setStorageValue(storage_schema, null)
+	await setStorageValue(storage_lastUpdateTime, new Date().toISOString())
+	logDebug(`Schema wiped`)
+}
+
+export async function prepareSchema(): Promise<ItemSchema> {
+	var needsUpdate: Boolean = false
+  var itemSchema: ItemSchema | null = null
+
+	const storedVersion: string | null = await getStorageValue(storage_version, null)
+	if(!storedVersion || !semver.valid(storedVersion)) {
+		log(`Cache is from an unknown version of the extension. Updating for version ${__VERSION__}`);
+		needsUpdate = true
+	} else if(semver.valid(storedVersion) && semver.lt(storedVersion, __VERSION__)) {
+		log(`Cache is from a previous version (${storedVersion}) of the extension. Updating for version ${__VERSION__}`);
+		needsUpdate = true
+	} else {
+		itemSchema = await getStorageValue(storage_schema, null);
+	}
+
+	const update = await getStorageValue(storage_lastUpdateTime, null)
+	if (update) {
+		const lastUpdateTime = new Date(update);
+		log(`Item schema updated at ${lastUpdateTime}`);
+		if (itemSchema == null || Object.keys(itemSchema).length === 0 || isDateAfterOneDay(lastUpdateTime, new Date())) {
+			needsUpdate = true
+		}
+	}
+
+	if(needsUpdate) {
+		log("Item Schema out of Date. Rebuilding...");
+		const url = "https://raw.githubusercontent.com/danocmx/node-tf2-static-schema/master/static/items.json"
+		const response = await GM_fetch(url);
+		if (response.ok) {
+			await setStorageValue(storage_lastUpdateTime, new Date().getTime());
+
+			var cacheItems = {}
+
+			var responseItems: any[] = await response.json()
+			// We want to keep the keys `defindex`, `item_name`, and `attributes`
+			responseItems.forEach((item: any) => {
+				const defindex = item['defindex']
+				const name = item['item_name']
+				var tradable: Boolean = true
+				try {
+					if(item['attributes'] != null) {
+						if(item['attributes'].find((attribute: {}) => (attribute as any)['class'] == "cannot_trade")) {
+							tradable = false
+						}
+					}
+				} catch(error) {
+					logError(error)
+					log(item)
+				}
+				(cacheItems as any)[defindex.toString()] = { "name": name, "tradable": tradable }
+			});
+
+			await setStorageValue(storage_schema, (cacheItems));
+			itemSchema = cacheItems
+			await setStorageValue(storage_version, __VERSION__);
+			logDebug(`Item schema updated at ${new Date()}`)
+		} else {
+			logError("Could not fetch item schema.");
+		}
+	}
+	return itemSchema
+}
\ No newline at end of file
diff --git a/src/content/uiRenderer.ts b/src/content/uiRenderer.ts
new file mode 100644
index 0000000..38c30ce
--- /dev/null
+++ b/src/content/uiRenderer.ts
@@ -0,0 +1,33 @@
+import { ItemPriceData } from "./priceService";
+import { formatPrice } from "./utils/formatting";
+import { $T } from "./utils/localization";
+
+export function createPriceRow(qualityName: string, data: ItemPriceData, keyPrice: ItemPriceData, locale: string): HTMLTableRowElement {
+  const priceRow = document.createElement("tr");
+
+  const priceLabel = document.createElement("td");
+  priceLabel.className = "infobox-label";
+  const priceLabelLink = document.createElement("a");
+  priceLabelLink.href = locale === 'en' ? `https://wiki.teamfortress.com/wiki/${qualityName}` : `https://wiki.teamfortress.com/wiki/${qualityName}/${locale}` 
+  priceLabelLink.innerText = $T(qualityName)
+  priceLabel.appendChild(priceLabelLink);
+  priceLabel.innerHTML += ':'
+  priceRow.appendChild(priceLabel);
+
+  const priceData = document.createElement("td");
+  const priceLink = document.createElement("span");
+  const priceString = data ? formatPrice(data.keys, data.metal, keyPrice.metal, locale).trim() : $T('Data unavailable')
+  priceLink.innerHTML = priceString // + `<br>$${data.scmPrice}`
+  priceData.appendChild(priceLink);
+  priceRow.appendChild(priceData);
+  return priceRow;
+}
+
+export function createStoreButton(storeName: string, url: URL) {
+	const button = document.createElement("tr")
+	var source = `<td colspan="2" class="infobox-data" style="text-align:center"><div class="plainlinks btn_wrapper" style="width:100%"><a rel="nofollow" class="external text" href="{link}" target="_blank"><span class="btn_buynow_addon_${storeName.replaceAll('.', '')}">{title}<span></span></span></a></div></td>`
+	source = source.replace("{link}", url.toString())
+	source = source.replace("{title}", $T("View listings on %@").replace('%@', storeName))
+	button.innerHTML = source
+	return button
+}
diff --git a/src/content/utils/dom.ts b/src/content/utils/dom.ts
new file mode 100644
index 0000000..722c5d5
--- /dev/null
+++ b/src/content/utils/dom.ts
@@ -0,0 +1,9 @@
+export function findFirstElement(selector: string): HTMLElement | null {
+	const elements = document.querySelectorAll(selector);
+	return elements.length > 0 ? elements[0] as HTMLElement : null;
+}
+
+export function findFirstChildElement(selector: string, root: Element): HTMLElement | null {
+	const elements = root.querySelectorAll(selector);
+	return elements.length > 0 ? elements[0] as HTMLElement : null;
+}
diff --git a/src/content/utils/formatting.ts b/src/content/utils/formatting.ts
new file mode 100644
index 0000000..25083db
--- /dev/null
+++ b/src/content/utils/formatting.ts
@@ -0,0 +1,28 @@
+import { conversion_ref_usd } from '../config';
+import { $T } from './localization'
+
+function toFixed(num: number, fixed: number) {
+	var re = new RegExp('^-?\\d+(?:\.\\d{0,' + (fixed || -1) + '})?');
+	return num.toString().match(re)[0];
+}
+
+export function formatPrice(keys: number, metal: number, keyPrice: number, locale: string = 'en') {
+	const pureMetal = (keys * keyPrice) + metal;
+	const formattedKeys = +(keys + (metal / keyPrice)).toFixed(2)
+
+	var output: string = ''
+	if(keys > 0) {
+		output += (formattedKeys == 1.0 ? $T("%@ key") : $T("%@ keys")).replace('%@', formattedKeys.toLocaleString(locale))
+	} else {
+		output += `${(+toFixed(metal, 2)).toLocaleString(locale)} ref`
+	}
+	const currencyFormatter = new Intl.NumberFormat(locale, {
+		minimumFractionDigits: 2,
+		maximumFractionDigits: 2,
+ 	});
+
+	// Round price up to nearest cent
+ 	const price = Math.ceil(pureMetal * conversion_ref_usd * 100) / 100
+	output += ` (US$${currencyFormatter.format(price)})`
+	return output;
+}
diff --git a/src/content/utils/localization.ts b/src/content/utils/localization.ts
new file mode 100644
index 0000000..6b262b0
--- /dev/null
+++ b/src/content/utils/localization.ts
@@ -0,0 +1,40 @@
+const localizations: {[lang: string]: any} = {
+	'en': require('../../strings/en'), // English
+	'es': require('../../strings/es'), // Spanish
+	// 'ja': require('../../strings/ja'), // Japanese
+	// 'it': require('../../strings/it'), // Italian
+	// 'ar': require('../../strings/ar.json') as object, // Arabic
+	// 'cs': require('../../strings/cs.json') as object, // Czech
+	// 'da': require('../../strings/da.json') as object, // Danish
+	// 'de': require('../../strings/de.json') as object, // German
+	// 'fi': require('../../strings/fi.json') as object, // Finnish
+	// 'fr': require('../../strings/fr.json') as object, // French
+	// 'hu': require('../../strings/hu.json') as object, // Hungarian
+	// 'ko': require('../../strings/ko.json') as object, // Korean
+	// 'nl': require('../../strings/nl.json') as object, // Dutch
+	// 'no': require('../../strings/no.json') as object, // Norwegian Bokmål
+	// 'pl': require('../../strings/pl.json') as object, // Polish
+	// 'pt': require('../../strings/pt.json') as object, // Portuguese
+	// 'pt-BR': require('../../strings/pt-BR.json') as object, // Brazilian Portuguese
+	// 'ro': require('../../strings/ro.json') as object, // Romanian
+	// 'ru': require('../../strings/ru.json') as object, // Russian
+	// 'sv': require('../../strings/sv.json') as object, // Swedish
+	// 'tr': require('../../strings/tr.json') as object, // Turkish
+	// 'zh-Hans': require('../../strings/zh-Hans.json') as object, // Simplified Chinese
+	// 'zh-Hant': require('../../strings/zh-Hant.json') as object, // Traditional Chinese
+}
+
+export function $T(s: string, locale?: Intl.LocalesArgument): string {
+	const code = locale ? locale.toString() : extractLocaleFromURL(document.URL)
+	return localizations.hasOwnProperty(code) ? (localizations[code as unknown as keyof object])[s] || s : s;
+}
+
+export function extractLocaleFromURL(url: string): string {
+	var split = url.substring(url.indexOf("/wiki/") + "/wiki/".length);
+	if (split.indexOf('/') != -1) {
+		// Remove language suffix e.g. `/es`
+		return split.substring(split.indexOf('/') + 1);
+	} else {
+		return 'en';
+	}
+}
diff --git a/src/content/log.ts b/src/content/utils/log.ts
similarity index 100%
rename from src/content/log.ts
rename to src/content/utils/log.ts
diff --git a/src/content/utils/url.ts b/src/content/utils/url.ts
new file mode 100644
index 0000000..3aa388c
--- /dev/null
+++ b/src/content/utils/url.ts
@@ -0,0 +1,8 @@
+export function extractPageTitleFromURL(url: string): string {
+	var split = url.substring(url.indexOf("/wiki/") + "/wiki/".length);
+	if (split.indexOf('/') != -1) {
+		// Remove language suffix (/es)
+		split = split.substring(0, split.indexOf('/'));
+	}
+	return decodeURIComponent(split.replaceAll('_', ' '));
+}