refactor!: uses TypeScript, better API usage (#38)

src/config.ts

@@ -0,0 +1,34 @@
+import { UserAgent } from "./useragents.js";
+
+export const config = {
+  baseUrl: "https://tvlistings.gracenote.com/api/grid",
+  lineupId:
+    process.env.LINEUP_ID ||
+    process.argv.find((arg) => arg.startsWith("--lineupId="))?.split("=")[1] ||
+    "USA-lineupId-DEFAULT",
+  timespan:
+    process.env.TIMESPAN ||
+    process.argv.find((arg) => arg.startsWith("--timespan="))?.split("=")[1] ||
+    "3",
+  postalCode:
+    process.env.POSTAL_CODE ||
+    process.argv
+      .find((arg) => arg.startsWith("--postalCode="))
+      ?.split("=")[1] ||
+    "30309",
+  pref:
+    process.env.PREF ||
+    process.argv.find((arg) => arg.startsWith("--pref="))?.split("=")[1] ||
+    "",
+  timezone: process.env.TZ || "America/New_York",
+  userAgent:
+    process.env.USER_AGENT ||
+    process.argv.find((arg) => arg.startsWith("--userAgent="))?.split("=")[1] ||
+    UserAgent,
+  outputFile:
+    process.env.OUTPUT_FILE ||
+    process.argv
+      .find((arg) => arg.startsWith("--outputFile="))
+      ?.split("=")[1] ||
+    "xmltv.xml",
+};