import BaseService from "@Services/BaseService";
import { Service } from "typedi";
import pinataSDK from "@pinata/sdk";
import { BackendVariables } from "@Common/config/variables/Variables";
import { Readable } from "stream";

@Service()
export default class FilesService extends BaseService {
	private ipfsClient: pinataSDK;
	constructor(protected variables: BackendVariables) {
		super();
		this.ipfsClient = new pinataSDK({ pinataApiKey: variables.PINATA_API_KEY, pinataSecretApiKey: variables.PINATA_API_SECRET });
	}

	/**
	 * @description : pin a file
	 * @throws {Error} If file cannot be pinned
	 */
	public async pinFile(stream: Readable, fileName: string) {
		return this.ipfsClient.pinFileToIPFS(stream, { pinataMetadata: { name: fileName } });
	}

	/**
	 * @description : unpin a file
	 * @throws {Error} If file cannot be unpinned
	 */
	public async unpinFile(hashToUnpin: string) {
		return this.ipfsClient.unpin(hashToUnpin);
	}
}