extract evepraisal from apraisal

src/market/appraisal/evepraisal.ts

@@ -0,0 +1,21 @@
+import { evepraisalAxiosInstance } from '@/service';
+import { MarketType } from "../type";
+import { MarketTypePrice, PriceGetter } from './MarketTypePrice';
+
+const batchSize = 100;
+
+export const getEvepraisalPrices: PriceGetter = async (types: MarketType[]): Promise<MarketTypePrice[]> => {
+    const batches = [];
+
+    for (let i = 0; i < types.length; i += batchSize) {
+        batches.push(evepraisalAxiosInstance.post(`/appraisal.json?market=jita&persist=no&raw_textarea=${types.slice(i, i + batchSize).map(t => t.name).join("%0A")}`));
+    }
+    return (await Promise.all(batches))
+        .flatMap(b => b.data.appraisal.items)
+        .map((item: any) => ({
+            type: types.find(t => t.name === item.typeName) as MarketType,
+            buy: item.prices.buy.max,
+            sell: item.prices.sell.min,
+            orderCount: item.prices.all.order_count
+        }));
+};