Fix duplicate purchases bug

prisma/migrations/20240924141738_init/migration.sql

@@ -226,6 +226,9 @@ CREATE UNIQUE INDEX "Course_noteId_key" ON "Course"("noteId");
 -- CreateIndex
 CREATE UNIQUE INDEX "UserLesson_userId_lessonId_key" ON "UserLesson"("userId", "lessonId");
 
+-- CreateIndex
+CREATE UNIQUE INDEX "Purchase_userId_courseId_key" ON "Purchase"("userId", "courseId");
+
 -- CreateIndex
 CREATE UNIQUE INDEX "UserCourse_userId_courseId_key" ON "UserCourse"("userId", "courseId");
 

prisma/schema.prisma

@@ -184,16 +184,18 @@ model UserLesson {
 }
 
 model Purchase {
-    id         String    @id @default(uuid())
-    user       User      @relation(fields: [userId], references: [id])
+    id         String   @id @default(uuid())
     userId     String
-    course     Course?   @relation(fields: [courseId], references: [id])
     courseId   String?
-    resource   Resource? @relation(fields: [resourceId], references: [id])
     resourceId String?
     amountPaid Int
-    createdAt  DateTime  @default(now())
-    updatedAt  DateTime  @updatedAt
+    createdAt  DateTime @default(now())
+    updatedAt  DateTime @updatedAt
+    user       User     @relation(fields: [userId], references: [id])
+    course     Course?  @relation(fields: [courseId], references: [id])
+    resource   Resource? @relation(fields: [resourceId], references: [id])
+
+    @@unique([userId, courseId])
 }
 
 model UserCourse {

src/components/content/lists/ProgressListItem.js

@@ -33,7 +33,7 @@ const ProgressListItem = ({ dTag, category }) => {
     const encodeNaddr = () => {
         return nip19.naddrEncode({
             pubkey: event.pubkey,
-            identifier: dTag,
+            identifier: event.id,
             kind: 30004,
             relayUrls: appConfig.defaultRelayUrls
         })

src/components/content/lists/PurchasedListItem.js

@@ -2,10 +2,13 @@ import React, { useEffect, useState } from "react";
 import { useNDKContext } from "@/context/NDKContext";
 import { parseEvent } from "@/utils/nostr";
 import { ProgressSpinner } from "primereact/progressspinner";
+import { nip19 } from "nostr-tools";
+import appConfig from "@/config/appConfig";
 
 const PurchasedListItem = ({ eventId, category }) => {
     const { ndk } = useNDKContext();
     const [event, setEvent] = useState(null);
+    const [naddr, setNaddr] = useState(null);
 
     useEffect(() => {
         const fetchEvent = async () => {
@@ -24,7 +27,23 @@ const PurchasedListItem = ({ eventId, category }) => {
         fetchEvent();
     }, [eventId, ndk]);
 
-    return !event || !ndk ? <ProgressSpinner className="w-[40px] h-[40px]" /> : (<a className="text-blue-500 underline hover:text-blue-600" href={category === "courses" ? `/courses/${event.id}` : `/details/${event.id}`}>{event.title}</a>);
+    useEffect(() => {
+        if (event) {
+            console.log("event", event);
+            encodeNaddr();
+        }
+    }, [event]);
+
+    const encodeNaddr = () => {
+        setNaddr(nip19.naddrEncode({
+            pubkey: event.pubkey,
+            identifier: event.id,
+            kind: event.kind,
+            relayUrls: appConfig.defaultRelayUrls
+        }))
+    }
+
+    return !event || !ndk ? <ProgressSpinner className="w-[40px] h-[40px]" /> : (<a className="text-blue-500 underline hover:text-blue-600" href={category === "courses" ? `/course/${naddr}` : `/details/${naddr}`}>{event.title}</a>);
 }
 
 export default PurchasedListItem;

src/components/profile/UserSettings.js

@@ -248,7 +248,6 @@ const UserSettings = () => {
                         <Column field="amountPaid" header="Cost"></Column>
                         <Column
                             body={(rowData) => {
-                                console.log("rowData", rowData);
                                 return <PurchasedListItem eventId={rowData?.resource?.noteId || rowData?.course?.noteId} category={rowData?.course ? "courses" : "resources"} />
                             }}
                             header="Name"

src/db/models/userModels.js

@@ -104,9 +104,27 @@ export const addCoursePurchaseToUser = async (userId, purchaseData) => {
     where: { id: userId },
     data: {
       purchased: {
-        create: {
-          courseId: purchaseData.courseId,
-          amountPaid: purchaseData.amountPaid,
+        upsert: {
+          where: {
+            userId_courseId: {
+              userId: userId,
+              courseId: purchaseData.courseId,
+            },
+          },
+          create: {
+            courseId: purchaseData.courseId,
+            amountPaid: purchaseData.amountPaid,
+          },
+          update: {
+            amountPaid: purchaseData.amountPaid,
+          },
+        },
+      },
+    },
+    include: {
+      purchased: {
+        include: {
+          course: true,
         },
       },
     },