refactor: rewrite async promises as chain

src/content/priceService.ts

@@ -1,7 +1,7 @@
 import { defindex_key, storage_priceprefix } from "./config"
 import { priceUsingPricesTF } from "./pricing/pricestf"
 import { getStorageValue, setStorageValue } from "./storage"
-import { logDebug, log } from "./utils/log"
+import { logDebug } from "./utils/log"
 
 /** Pricing data for a given TF2 item. */
 export class ItemPriceData {
@@ -40,7 +40,6 @@ export async function fetchKeyPrice(token: string) {
  * @param ttl Time to cache results in milliseconds. 30 minutes by default.
  */
 export async function fetchPrice(token: string, sku: string, update: Date = new Date(), ttl: number = 30 * 60 * 1000): Promise<ItemPriceData> {
-	return new Promise(async (resolve, reject) => {
 		let data: ItemPriceData | null
 
 		const cached: ItemPriceData = await getStorageValue(storage_priceprefix + sku, null)
@@ -51,7 +50,7 @@ export async function fetchPrice(token: string, sku: string, update: Date = new
 		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)
+				throw new Error('No token provided')
 			}
 			data = new ItemPriceData()
 			data.sku = sku
@@ -65,8 +64,7 @@ export async function fetchPrice(token: string, sku: string, update: Date = new
 					data.metal = response.metal
 				}
 			} catch (error) {
-				log(`Received ${error} error while pricing ${sku} using prices.tf`)
-				reject(error)
+				throw new Error(`Received ${error} error while pricing ${sku} using prices.tf`)
 			}
 
 			if ('metal' in data && 'keys' in data) {
@@ -75,6 +73,5 @@ export async function fetchPrice(token: string, sku: string, update: Date = new
 		} else {
 			logDebug(`Using cached price data for ${sku}`)
 		}
-		resolve(data)
-	})
+		return data
 }