import {
  PROVIDER_DEFINITIONS,
  getProviderDefinition,
} from '../../shared/providers/registry';
import type {
  ProviderAccount,
  ProviderConfig,
  ProviderDefinition,
} from '../../shared/providers/types';
import { ensureProviderStoreMigrated } from './provider-migration';
import {
  getDefaultProviderAccountId,
  getProviderAccount,
  listProviderAccounts,
  providerConfigToAccount,
  saveProviderAccount,
  setDefaultProviderAccount,
} from './provider-store';

export class ProviderService {
  async listVendors(): Promise<ProviderDefinition[]> {
    return PROVIDER_DEFINITIONS;
  }

  async listAccounts(): Promise<ProviderAccount[]> {
    await ensureProviderStoreMigrated();
    return listProviderAccounts();
  }

  async getAccount(accountId: string): Promise<ProviderAccount | null> {
    await ensureProviderStoreMigrated();
    return getProviderAccount(accountId);
  }

  async getDefaultAccountId(): Promise<string | undefined> {
    await ensureProviderStoreMigrated();
    return getDefaultProviderAccountId();
  }

  async syncLegacyProvider(config: ProviderConfig, options?: { isDefault?: boolean }): Promise<ProviderAccount> {
    await ensureProviderStoreMigrated();
    const account = providerConfigToAccount(config, options);
    await saveProviderAccount(account);
    return account;
  }

  async setDefaultAccount(accountId: string): Promise<void> {
    await ensureProviderStoreMigrated();
    await setDefaultProviderAccount(accountId);
  }

  getVendorDefinition(vendorId: string): ProviderDefinition | undefined {
    return getProviderDefinition(vendorId);
  }
}

const providerService = new ProviderService();

export function getProviderService(): ProviderService {
  return providerService;
}