add tracks main page. add get my tracks action

media-store/srv/browse-tracks-service.js

@@ -0,0 +1,51 @@
+const cds = require("@sap/cds");
+
+const selectInvoicedTracksByEmail = (email) => `
+        select
+            tracks.ID,
+            tracks.name trackName,
+            tracks.composer,
+            tracks.unitPrice,
+            genre.name genreName,
+            album.title albumTitle
+            
+        from sap_capire_media_store_Tracks tracks
+        join sap_capire_media_store_InvoiceItems invoiceItem
+            on invoiceItem.track_ID = tracks.ID
+        join sap_capire_media_store_Invoices invoice
+            on invoice.ID = invoiceItem.invoice_ID
+        join sap_capire_media_store_Customers customer
+            on customer.ID = invoice.customer_ID
+        join sap_capire_media_store_Genres genre
+            on genre.ID = tracks.genre_ID
+        join sap_capire_media_store_Albums album
+            on album.ID = tracks.album_ID
+        where
+            customer.email = '${email}'
+`;
+
+module.exports = async function () {
+  const db = await cds.connect.to("db"); // connect to database service
+
+  // this.before("*", (req) => {
+  //   req.user = new Buyer();
+  // });
+
+  this.before("*", (req) => {
+    console.log(
+      "[USER]:",
+      req.user.id,
+      " [LEVEL]: ",
+      req.user.attr.level,
+      "[ROLE]",
+      req.user.is("user") ? "user" : "other"
+    );
+  });
+
+  this.on("getInvoicedTracks", async (req) => {
+    const user = req.user;
+    user.is("user") || req.reject(403);
+    const query = cds.parse.cql(selectInvoicedTracksByEmail(user.attr.email));
+    return await db.run(query);
+  });
+};