chore: add invoice and subscription entities

src/modules/subscriptions/entities/subscription.entity.ts

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+import { Column, Entity, ManyToOne } from "typeorm";
+
+import { BaseEntity } from "../../../common/entities/base.entity";
+import { DanakService } from "../../danak-services/entities/danak-service.entity";
+
+@Entity()
+export class SubscriptionPlan extends BaseEntity {
+  @Column({ type: "varchar", length: 100, nullable: false })
+  name: string;
+
+  @Column({ type: "int", nullable: false })
+  duration: number;
+
+  @Column({ type: "decimal", precision: 10, scale: 2, nullable: false })
+  price: number;
+
+  @Column({ type: "boolean", default: true })
+  isActive: boolean;
+
+  @ManyToOne(() => DanakService, (danakService) => danakService.subscriptionPlans, { nullable: false, onDelete: "CASCADE" })
+  service: DanakService;
+}

src/modules/subscriptions/entities/user-subscription.entity.ts

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+import { Column, Entity, ManyToOne } from "typeorm";
+
+import { SubscriptionPlan } from "./subscription.entity";
+import { BaseEntity } from "../../../common/entities/base.entity";
+import { User } from "../../users/entities/user.entity";
+
+@Entity()
+export class UserSubscription extends BaseEntity {
+  @ManyToOne(() => User, (user) => user.subscriptions, { nullable: false, onDelete: "CASCADE" })
+  user: User;
+
+  @ManyToOne(() => SubscriptionPlan, { nullable: false, onDelete: "CASCADE" })
+  plan: SubscriptionPlan;
+
+  @Column({ type: "timestamp", nullable: false }) // When the subscription started
+  startDate: Date;
+
+  @Column({ type: "timestamp", nullable: false }) // When it expires
+  endDate: Date;
+
+  @Column({ type: "boolean", default: false }) // Whether the user canceled it
+  isCanceled: boolean;
+}

src/modules/subscriptions/providers/subscriptions.service.ts

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+import { Injectable } from "@nestjs/common";
+
+@Injectable()
+export class SubscriptionsService {}

src/modules/subscriptions/repositories/subscriptions.repository.ts

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+import { Injectable } from "@nestjs/common";
+import { InjectRepository } from "@nestjs/typeorm";
+import { Repository } from "typeorm";
+
+import { SubscriptionPlan } from "../entities/subscription.entity";
+
+@Injectable()
+export class SubscriptionsRepository extends Repository<SubscriptionPlan> {
+  constructor(@InjectRepository(SubscriptionPlan) subscriptionPlanRepository: Repository<SubscriptionPlan>) {
+    super(subscriptionPlanRepository.target, subscriptionPlanRepository.manager, subscriptionPlanRepository.queryRunner);
+  }
+}

src/modules/subscriptions/repositories/user-subscriptions.repository.ts

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+import { Injectable } from "@nestjs/common";
+import { InjectRepository } from "@nestjs/typeorm";
+import { Repository } from "typeorm";
+
+@Injectable()
+export class UserSubscriptionsRepository extends Repository<UserSubscriptionsRepository> {
+  constructor(@InjectRepository(UserSubscriptionsRepository) userSubscriptionsRepository: Repository<UserSubscriptionsRepository>) {
+    super(userSubscriptionsRepository.target, userSubscriptionsRepository.manager, userSubscriptionsRepository.queryRunner);
+  }
+}

src/modules/subscriptions/subscriptions.controller.ts

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+import { Controller } from "@nestjs/common";
+
+@Controller("subscriptions")
+export class SubscriptionsController {}

src/modules/subscriptions/subscriptions.module.ts

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+import { Module } from "@nestjs/common";
+import { TypeOrmModule } from "@nestjs/typeorm";
+
+import { SubscriptionPlan } from "./entities/subscription.entity";
+import { UserSubscription } from "./entities/user-subscription.entity";
+import { SubscriptionsService } from "./providers/subscriptions.service";
+import { SubscriptionsRepository } from "./repositories/subscriptions.repository";
+import { UserSubscriptionsRepository } from "./repositories/user-subscriptions.repository";
+import { SubscriptionsController } from "./subscriptions.controller";
+
+@Module({
+  imports: [TypeOrmModule.forFeature([SubscriptionPlan, UserSubscription])],
+  providers: [SubscriptionsService, SubscriptionsRepository, UserSubscriptionsRepository],
+  controllers: [SubscriptionsController],
+  exports: [SubscriptionsService],
+})
+export class SubscriptionsModule {}