DRY - FeedbackService

FeedbackService.ts

interface Feedback {
    id: string;
    title: string;
}

interface FeedbackOperationOptions {
    user: User;
    entity: Feedback;
}

class FeedbackService {
    private db: DB<Feedback>;
    private entity = 'feedback';

    constructor() {
        this.db = new DB<Feedback>(this.entity);
    }

    async create(options: FeedbackOperationOptions): Promise<Feedback | undefined> {
        if (userIsPermitted(options.user)) {
            console.log(`Create ${this.entity}.`);
            return this.db.create(options);
        }
        return undefined;
    }

    async read(options: FeedbackOperationOptions): Promise<Feedback | undefined> {
        console.log(`Get ${this.entity}`);
        return this.db.read(options);
    }

    async update(options: FeedbackOperationOptions): Promise<Feedback | undefined> {
        if (userIsPermitted(options.user)) {
            console.log(`Update ${this.entity}.`);
            return this.db.update(options);
        }
        return undefined;
    }

    async delete(options: FeedbackOperationOptions): Promise<Feedback | undefined> {
        if (userIsPermitted(options.user)) {
            console.log(`Deleted ${this.entity}.`);
            return this.db.delete(options);
        }
        return undefined;
    }
}