feat: allow multiple shares with one reverse share link

backend/src/reverseShare/dto/createReverseShare.dto.ts

@@ -1,4 +1,4 @@
-import { IsBoolean, IsString } from "class-validator";
+import { IsBoolean, IsString, Max, Min } from "class-validator";
 
 export class CreateReverseShareDTO {
   @IsBoolean()
@@ -9,4 +9,8 @@ export class CreateReverseShareDTO {
 
   @IsString()
   shareExpiration: string;
+
+  @Min(1)
+  @Max(1000)
+  maxUseCount: number;
 }

backend/src/reverseShare/dto/reverseShareTokenWithShares.ts

@@ -3,7 +3,7 @@ import { Expose, plainToClass, Type } from "class-transformer";
 import { MyShareDTO } from "src/share/dto/myShare.dto";
 import { ReverseShareDTO } from "./reverseShare.dto";
 
-export class ReverseShareTokenWithShare extends OmitType(ReverseShareDTO, [
+export class ReverseShareTokenWithShares extends OmitType(ReverseShareDTO, [
   "shareExpiration",
 ] as const) {
   @Expose()
@@ -11,14 +11,17 @@ export class ReverseShareTokenWithShare extends OmitType(ReverseShareDTO, [
 
   @Expose()
   @Type(() => OmitType(MyShareDTO, ["recipients", "hasPassword"] as const))
-  share: Omit<
+  shares: Omit<
     MyShareDTO,
     "recipients" | "files" | "from" | "fromList" | "hasPassword"
-  >;
+  >[];
 
-  fromList(partial: Partial<ReverseShareTokenWithShare>[]) {
+  @Expose()
+  remainingUses: number;
+
+  fromList(partial: Partial<ReverseShareTokenWithShares>[]) {
     return partial.map((part) =>
-      plainToClass(ReverseShareTokenWithShare, part, {
+      plainToClass(ReverseShareTokenWithShares, part, {
         excludeExtraneousValues: true,
       })
     );

backend/src/reverseShare/reverseShare.controller.ts

@@ -15,7 +15,7 @@ import { JwtGuard } from "src/auth/guard/jwt.guard";
 import { ConfigService } from "src/config/config.service";
 import { CreateReverseShareDTO } from "./dto/createReverseShare.dto";
 import { ReverseShareDTO } from "./dto/reverseShare.dto";
-import { ReverseShareTokenWithShare } from "./dto/reverseShareTokenWithShare";
+import { ReverseShareTokenWithShares } from "./dto/reverseShareTokenWithShares";
 import { ReverseShareOwnerGuard } from "./guards/reverseShareOwner.guard";
 import { ReverseShareService } from "./reverseShare.service";
 
@@ -51,7 +51,7 @@ export class ReverseShareController {
   @Get()
   @UseGuards(JwtGuard)
   async getAllByUser(@GetUser() user: User) {
-    return new ReverseShareTokenWithShare().fromList(
+    return new ReverseShareTokenWithShares().fromList(
       await this.reverseShareService.getAllByUser(user.id)
     );
   }

backend/src/reverseShare/reverseShare.service.ts

@@ -34,6 +34,7 @@ export class ReverseShareService {
     const reverseShare = await this.prisma.reverseShare.create({
       data: {
         shareExpiration: expirationDate,
+        remainingUses: data.maxUseCount,
         maxShareSize: data.maxShareSize,
         sendEmailNotification: data.sendEmailNotification,
         creatorId,
@@ -60,7 +61,7 @@ export class ReverseShareService {
       orderBy: {
         shareExpiration: "desc",
       },
-      include: { share: { include: { creator: true } } },
+      include: { shares: { include: { creator: true } } },
     });
 
     return reverseShares;
@@ -74,9 +75,9 @@ export class ReverseShareService {
     if (!reverseShare) return false;
 
     const isExpired = new Date() > reverseShare.shareExpiration;
-    const isUsed = reverseShare.used;
+    const remainingUsesExceeded = reverseShare.remainingUses <= 0;
 
-    return !(isExpired || isUsed);
+    return !(isExpired || remainingUsesExceeded);
   }
 
   async remove(id: string) {