import { defs } from "@atcute/did-plc";

const API_BASE = "https://api.aletheia.directory";

export interface DidDocument {
  "@context": string[];
  id: string;
  alsoKnownAs: string[];
  verificationMethod: any[];
  service: any[];
}

export class PLCDirectoryAPI {
  private baseURL: string;

  constructor(baseURL: string = API_BASE) {
    this.baseURL = baseURL;
  }

  async fetchDidDocument(did: string): Promise<DidDocument> {
    const response = await fetch(`${this.baseURL}/${did}`, {
      mode: 'cors',
      headers: {
        'Content-Type': 'application/json',
      }
    });
    if (!response.ok) {
      const error = await response
        .json()
        .catch(() => ({ message: "Unknown error" }));
      throw new Error(error.message || `HTTP ${response.status}`);
    }
    return response.json();
  }

  async fetchDidAuditLog(did: string): Promise<defs.IndexedEntryLog> {
    const response = await fetch(`${this.baseURL}/${did}/log/audit`, {
      mode: 'cors',
      headers: {
        'Content-Type': 'application/json',
      }
    });
    if (!response.ok) {
      const error = await response
        .json()
        .catch(() => ({ message: "Unknown error" }));
      throw new Error(error.message || `HTTP ${response.status}`);
    }
    const data = await response.json();
    const result = defs.indexedEntryLog.try(data);
    if (!result.ok) {
      console.log(result);
      throw new Error(`Invalid audit log format: ${result.error.message}`);
    }

    return result.value;
  }
}

export const api = new PLCDirectoryAPI();