memegoat/backend/src/crypto/crypto.service.ts

import { Injectable } from "@nestjs/common";
import type * as jose from "jose";
import { EncryptionService } from "./services/encryption.service";
import { HashingService } from "./services/hashing.service";
import { JwtService } from "./services/jwt.service";
import { PostQuantumService } from "./services/post-quantum.service";

/**
 * @deprecated Use HashingService, JwtService, EncryptionService or PostQuantumService directly.
 * This service acts as a Facade for backward compatibility.
 */
@Injectable()
export class CryptoService {
	constructor(
		private readonly hashingService: HashingService,
		private readonly jwtService: JwtService,
		private readonly encryptionService: EncryptionService,
		private readonly postQuantumService: PostQuantumService,
	) {}

	async hashEmail(email: string): Promise<string> {
		return this.hashingService.hashEmail(email);
	}

	async hashIp(ip: string): Promise<string> {
		return this.hashingService.hashIp(ip);
	}

	getPgpEncryptionKey(): string {
		return this.encryptionService.getPgpEncryptionKey();
	}

	async hashPassword(password: string): Promise<string> {
		return this.hashingService.hashPassword(password);
	}

	async verifyPassword(password: string, hash: string): Promise<boolean> {
		return this.hashingService.verifyPassword(password, hash);
	}

	async generateJwt(
		payload: jose.JWTPayload,
		expiresIn = "2h",
	): Promise<string> {
		return this.jwtService.generateJwt(payload, expiresIn);
	}

	async verifyJwt<T extends jose.JWTPayload>(token: string): Promise<T> {
		return this.jwtService.verifyJwt<T>(token);
	}

	async encryptContent(content: string): Promise<string> {
		return this.encryptionService.encryptContent(content);
	}

	async decryptContent(jwe: string): Promise<string> {
		return this.encryptionService.decryptContent(jwe);
	}

	async signContent(content: string): Promise<string> {
		return this.encryptionService.signContent(content);
	}

	async verifyContentSignature(jws: string): Promise<string> {
		return this.encryptionService.verifyContentSignature(jws);
	}

	generatePostQuantumKeyPair() {
		return this.postQuantumService.generatePostQuantumKeyPair();
	}

	encapsulate(publicKey: Uint8Array) {
		return this.postQuantumService.encapsulate(publicKey);
	}

	decapsulate(cipherText: Uint8Array, secretKey: Uint8Array) {
		return this.postQuantumService.decapsulate(cipherText, secretKey);
	}
}