import { ensureB64 } from '@/lib/format'
import { datePivot } from '@/lib/time'

export const server = {
  walletType: 'LND',
  walletField: 'walletLND',
  testConnect: async (
    { cert, macaroon, socket },
    { me, models, addWalletLog, lnService: { authenticatedLndGrpc, createInvoice } }
  ) => {
    try {
      cert = ensureB64(cert)
      macaroon = ensureB64(macaroon)

      const { lnd } = await authenticatedLndGrpc({
        cert,
        macaroon,
        socket
      })

      const inv = await createInvoice({
        description: 'SN connection test',
        lnd,
        tokens: 0,
        expires_at: new Date()
      })

      // we wrap both calls in one try/catch since connection attempts happen on RPC calls
      await addWalletLog({ wallet: { type: 'LND' }, level: 'SUCCESS', message: 'connected to LND' }, { me, models })

      return inv
    } catch (err) {
      // LND errors are in this shape: [code, type, { err: { code, details, metadata } }]
      const details = err[2]?.err?.details || err.message || err.toString?.()
      throw new Error(details)
    }
  },
  createInvoice: async (
    { amount },
    { cert, macaroon, socket },
    { me, lnService: { authenticatedLndGrpc, createInvoice } }
  ) => {
    const { lnd } = await authenticatedLndGrpc({
      cert,
      macaroon,
      socket
    })

    const invoice = await createInvoice({
      description: me.hideInvoiceDesc ? undefined : 'autowithdraw to LND from SN',
      lnd,
      tokens: amount,
      expires_at: datePivot(new Date(), { seconds: 360 })
    })

    return invoice.request
  }
}