Add audiobookshelf widget

src/widgets/audiobookshelf/proxy.js

@@ -0,0 +1,64 @@
+import { httpProxy } from "utils/proxy/http";
+import { formatApiCall } from "utils/proxy/api-helpers";
+import getServiceWidget from "utils/config/service-helpers";
+import createLogger from "utils/logger";
+import widgets from "widgets/widgets";
+
+const proxyName = "audiobookshelfProxyHandler";
+const logger = createLogger(proxyName);
+
+async function retrieveFromAPI(url, key) {
+  const headers = {
+    "content-type": "application/json",
+    "Authorization": `Bearer ${key}`
+  };
+
+  const [status, , data] = await httpProxy(url, { headers });
+
+  if (status !== 200) {
+    throw new Error(`Error getting data from Audiobookshelf: ${status}. Data: ${data.toString()}`);
+  }
+
+  return JSON.parse(Buffer.from(data).toString());
+}
+
+export default async function audiobookshelfProxyHandler(req, res) {
+  const { group, service, endpoint } = req.query;
+
+  if (!group || !service) {
+    logger.debug("Invalid or missing service '%s' or group '%s'", service, group);
+    return res.status(400).json({ error: "Invalid proxy service type" });
+  }
+
+  const widget = await getServiceWidget(group, service);
+
+  if (!widget) {
+    logger.debug("Invalid or missing widget for service '%s' in group '%s'", service, group);
+    return res.status(400).json({ error: "Invalid proxy service type" });
+  }
+
+  if (!widget.key) {
+    logger.debug("Invalid or missing key for service '%s' in group '%s'", service, group);
+    return res.status(400).json({ error: "Missing widget key" });
+  }
+
+  const apiURL = widgets[widget.type].api;
+
+  try {
+    const url = new URL(formatApiCall(apiURL, { endpoint, ...widget }));
+    const libraryData = await retrieveFromAPI(url, widget.key);
+
+    const libraryStats = await Promise.all(libraryData.libraries.map(async l => {
+      const stats = await retrieveFromAPI(new URL(formatApiCall(apiURL, { endpoint: `libraries/${l.id}/stats`, ...widget })), widget.key);
+      return {
+        ...l,
+        stats
+      };
+    }));
+  
+    return res.status(200).send(libraryStats);
+  } catch (e) {
+    logger.error(e.message);
+    return res.status(500).send({error: {message: e.message}});
+  }
+}