@xcapit/shelter-sdk/src/shelter/shelter.ts

SDK for Shelter smart contracts on Stellar

import { Client, Keypair } from "shelter-sdk";
import type { Client as SAC } from "sac-sdk";
import type { FakeClient } from "../fake-client/fake-client";
import { Transaction } from "../transaction/transaction";
import type { Rpc } from "../rpc/rpc";
import { Gate } from "../gate/gate";
import { Aid } from "../aid/aid";
import type { FakeSAC } from "../fake-sac/fake-sac";
import type { Pass } from "../pass/pass.interface";

export class Shelter {
  constructor(
    private readonly _steward: Keypair,
    private readonly _rpc: Rpc,
    private readonly _client: Client | FakeClient
  ) { }

  static async connected(aSteward: Keypair, aRpc: Rpc, aShelterId: string) {
    return new this(
      aSteward,
      aRpc,
      new Client({
        contractId: aShelterId,
        networkPassphrase: await aRpc.network(),
        rpcUrl: aRpc.url(),
        publicKey: aSteward.publicKey(),
      })
    );
  }

  async stewardId(): Promise<string> {
    return (await this._client.steward()).result;
  }

  async boundAid(
    recipient: Buffer,
    token: string,
    amount: bigint,
    expiration: bigint
  ): Promise<void> {
    await this._txOf(
      await this._client.bound_aid({
        recipient,
        token,
        amount,
        expiration,
      }),
      'Bound Aid Error'
    ).result();
  }

  async unboundAid(
    recipient: Buffer,
    token: string,
  ): Promise<void> {
    await this._txOf(
      await this._client.unbound_aid({
        recipient,
        token,
      }),
      'Unbound Aid Error'
    ).result();
  }

  id(): string {
    return this._client.options.contractId;
  }

  async aidOf(recipient: Buffer, token: string): Promise<bigint> {
    return (await this._client.aid_of({ recipient, token })).result.amount;
  }

  async updateReleaseKey(releaseKey: Buffer): Promise<void> {
    await this._txOf(
      await this._client.update_release_key({
        steward_key: releaseKey,
      }),
      'Update Release Key Error'
    ).result();
  }

  async updateSteward(newSteward: Keypair): Promise<void> {
    await this._txOf(
      await this._client.update_steward({
        new_steward: newSteward.publicKey(),
      }),
      'Update Steward Error'
    ).result();
  }

  gate(): Gate {
    return new Gate(this._client, this._steward, this._rpc);
  }

  async withdraw(sac: SAC | FakeSAC, pass: Pass): Promise<void> {
    await new Aid(
      this._steward,
      this._steward,
      sac,
      this,
      this._rpc
    ).transfer(
      this._steward.publicKey(),
      (await sac.balance({ id: this.id() })).result,
      pass
    );
  }

  _txOf(aRawTx: any, errorMsg: string): Transaction {
    return new Transaction(
      aRawTx,
      this._steward,
      this._rpc,
      errorMsg
    )
  }
}