putAdapter.ts

import type { Address, AgentService, PublicSharing, HolochainLanguageDelegate, IPFSNode, LanguageContext, LanguageLanguageInput} from "@perspect3vism/ad4m";
import { DNA_NICK } from "./dna";

export class IpfsPutAdapter implements PublicSharing {
  #agent: AgentService;
  #IPFS: IPFSNode;
  #holochain: HolochainLanguageDelegate;

  constructor(context: LanguageContext) {
    this.#agent = context.agent;
    this.#IPFS = context.IPFS;
    this.#holochain = context.Holochain as HolochainLanguageDelegate;
  }

  async createPublic(language: LanguageLanguageInput): Promise<Address> {

    const ipfsAddress = await this.#IPFS.add({
      content:  language.bundle.toString(),
    });
    // @ts-ignore
    const hash = ipfsAddress.cid.toString();

    if(hash != language.meta.address)
      throw new Error(`Language Persistence: Can't store language. Address stated in meta differs from actual file\nWanted: ${language.meta.address}\nGot: ${hash}`)

    const agent = this.#agent;
    const expression = agent.createSignedExpression(language.meta);
    await this.#holochain.call(
      DNA_NICK,
      "anchored-expression",
      "store_expression",
      {
        key: hash,
        expression,
      }
    );

    return hash as Address;
  }
}