feat(scrape): validate against quote record schema

src/content.config.ts

@@ -1,6 +1,8 @@
 import { docsSchema } from "@astrojs/starlight/schema";
 import { glob } from "astro/loaders";
-import { defineCollection, z } from "astro:content";
+import { defineCollection } from "astro:content";
+
+import { QuoteRecordSchema } from "./data/quoteRecords/_schema";
 
 const docs = defineCollection({
   loader:
@@ -15,7 +17,7 @@ const docs = defineCollection({
 
 const quoteRecords = defineCollection({
   loader: glob({ pattern: "[^_]*.json", base: "./src/data/quoteRecords" }),
-  schema: z.record(z.string(), z.number()),
+  schema: QuoteRecordSchema,
 });
 
 export const collections = {

src/data/quoteRecords/_schema.ts

@@ -0,0 +1,4 @@
+import { z } from "astro/zod";
+
+export const QuoteRecordSchema = z.record(z.string(), z.number());
+export type QuoteRecord = z.output<typeof QuoteRecordSchema>;

src/data/quoteRecords/_scrape.ts

@@ -3,6 +3,7 @@ import * as util from "node:util";
 
 import * as XLSX from "xlsx";
 
+import { type QuoteRecord, QuoteRecordSchema } from "./_schema";
 import {
   currencyPairSymbol,
   isCurrency,
@@ -96,7 +97,7 @@ for (const [currency, rateByDate] of rateByDateByCurrency) {
 
   const prevContents = await file.readFile("utf8");
   const quotes = prevContents
-    ? Object.entries<number>(JSON.parse(prevContents))
+    ? Object.entries(QuoteRecordSchema.parse(JSON.parse(prevContents)))
     : [];
 
   for (const [date, rate] of rateByDate) {
@@ -106,7 +107,8 @@ for (const [currency, rateByDate] of rateByDateByCurrency) {
 
   await file.truncate();
   await file.write(
-    JSON.stringify(Object.fromEntries(quotes), null, 2) + "\n",
+    JSON.stringify(Object.fromEntries(quotes) satisfies QuoteRecord, null, 2) +
+      "\n",
     0,
   );
 }