feat: show coupon in search results

commands/search.ts

@@ -58,11 +58,17 @@ async function run(bot: Client, message: Message, args: string[]) {
 
     if (parsedArgs.priceLimit && parseFloat(result.price) > (parsedArgs.priceLimit as number)) continue
 
-    embed.addFields([{
-      name: trim(result.fullTitle, 50),
-      value: `${parseFloat(result.price) ? result.symbol + result.price : 'Not in stock'} - ${result.fullLink}`,
-      inline: false
-    }])
+    const priceWithCoupon = result.coupon > 0 ? parseFloat(result.price) - result.coupon : result.price
+
+    embed.addFields([
+      {
+        name: trim(result.fullTitle, 50),
+        value: `${parseFloat(result.price) ? `${result.symbol + (
+          result.coupon > 0 ? `${priceWithCoupon} (${result.symbol + result.coupon.toFixed(2)} coupon)` : result.price
+        )}` : 'Not in stock'} - ${result.fullLink}`,
+        inline: false
+      },
+    ])
   }
 
   message.channel.send({

common/amazon.ts

@@ -19,17 +19,19 @@ export async function search(query: string, suffix: string) {
   $('.s-result-list').find('.s-result-item').each(function () {
     if (results.length >= limit) return
 
-    const link = $(this).find('.a-link-normal[href*="/dp/"]').attr('href')
+    const link = '/dp/' + $(this).find('.a-link-normal[href*="/dp/"]').first().attr('href')?.split('/dp/')[1].split('?')[0]
 
-    if (!link) return
+    if (!link || link.includes('undefined')) return
 
     const asin = linkToAsin(link)
     const priceString = $(this).find('.a-price').find('.a-offscreen').first().text().trim()
     const price = priceFormat($(this).find('.a-price').find('.a-offscreen').first().text().trim().replace(/[a-zA-Z]/g, ''))
+    const maybeCoupon = priceFormat($(this).find('.s-coupon-unclipped span').first().text().trim().replace(/[a-zA-Z]/g, ''))
 
     results.push({
       fullTitle: $(this).find('span.a-text-normal').text().trim(),
       ratings: $(this).find('.a-icon-alt').text().trim(),
+      coupon: maybeCoupon.includes('NaN') ? -1 : parseFloat(maybeCoupon),
       price: price.includes('NaN') ? '' : price,
       lastPrice: parseFloat(price) || 0,
       symbol: priceString.replace(/[,.]+/g, '').replace(/[\d a-zA-Z]/g, ''),

global.d.ts

@@ -75,6 +75,7 @@ type Watchlist = Array<LinkItem | CategoryItem | QueryItem>
 interface SearchData {
   fullTitle: string;
   ratings: string;
+  coupon: number;
   price: string;
   lastPrice: number;
   symbol: string;