refactor: replace prices.tf with pricedb.io

src/background/background.ts

@@ -27,55 +27,35 @@ chrome.runtime.onMessage.addListener(
   }
 );
 
-chrome.runtime.onMessage.addListener(
-  function(request, sender, sendResponse) {
-    if (request.contentScriptQuery == "getPricesTFToken") {
-      fetch('https://api2.prices.tf/auth/access', {
-        method: 'post',
-        headers: new Headers({
-          'Accept': 'application/json'
-        })
-      })
-      .then(response => response.json())
-      .then(json => sendResponse(json['accessToken']))
-      .catch(error => {
-        console.error("Failed to get access token", error);
-      })
-      return true;
-    }
-  }
-)
-
 class PricesResponse {
   keys: number
   metal: number
 }
 
-async function priceUsingPricesTF(token: string, sku: string, retries: number = 3): Promise<PricesResponse> {
-  const url = `https://api2.prices.tf/prices/${encodeURIComponent(sku)}`;
+async function priceUsingPricedb(sku: string, retries: number = 3): Promise<PricesResponse> {
+  const url = `https://pricedb.io/api/item/${encodeURIComponent(sku)}`;
   const response = await fetch(url, {
     method: 'get',
     headers: {
       'Accept': 'application/json',
-      'Authorization': `Bearer ${token}`,
     }
   })
   if (response.status === 404 && sku.includes(';') && !sku.includes(';uncraftable')) {
     const quality: number = parseInt(sku.split(';')[1], 10);
     if(quality === 6) {
       // Try uncraftable variant if unique weapon
-      return priceUsingPricesTF(token, sku + ';uncraftable');
+      return priceUsingPricedb(sku + ';uncraftable');
     }
   }
-  if(response.status === 503) {
-    // Happens if we send too many requests in a short period of time
+  if(response.status === 429) {
+    // Happens if we send too many requests (rate limit: 180 req/min)
     // Retry after a few seconds
     if(retries >= 0) {
-      console.log(`Cloudflare rate limit exceeded, trying again after 1 second, ${retries} retries left`)
+      console.log(`Rate limit exceeded, trying again after 1 second, ${retries} retries left`)
       await new Promise(resolve => setTimeout(resolve, 1000));
-      return priceUsingPricesTF(token, sku, retries - 1);
+      return priceUsingPricedb(sku, retries - 1);
     } else {
-      throw new Error(`Cloudflare rate limit exceeded, stopping`)
+      throw new Error(`Rate limit exceeded, stopping`)
     }
   }
   if (!response.ok) {
@@ -83,8 +63,8 @@ async function priceUsingPricesTF(token: string, sku: string, retries: number =
   }
   const data = await response.json();
   const prices = new PricesResponse();
-  prices.keys = data['sellKeys']
-  prices.metal = data['sellHalfScrap'] / 18.0;
+  prices.keys = data.sell.keys
+  prices.metal = data.sell.metal
   return prices;
 }
 
@@ -92,24 +72,14 @@ chrome.runtime.onMessage.addListener(
   function(request, sender, sendResponse) {
     if (request.contentScriptQuery == "priceSKU") {
       const sku: string = request.sku
-      const service: string = request.service
-      const token: string = request.token
-      if(token === "" || !token) {
-        sendResponse(new Error("No token provided"))
+      priceUsingPricedb(sku)
+      .then((response) => sendResponse(response))
+      .catch(error => {
+        console.error(`Received "${error}" error while pricing ${sku} using pricedb.io`)
+        sendResponse(null);
         return false;
-      }
-      switch (service) {
-        case "prices.tf": {
-          priceUsingPricesTF(token, sku)
-          .then((response) => sendResponse(response))
-          .catch(error => {
-            console.error(`Received "${error}" error while pricing ${sku} using prices.tf`)
-            sendResponse(null);
-            return false;
-          })
-        }
-      }
-      return true;
+      })
     }
+    return true;
   }
-);
+);