import { createAgent } from '@txfence/core'
import type { Policy } from '@txfence/core'
import { simulateEvmAction, executeEvmAction, privateKeySigner } from '@txfence/evm'

const signer = privateKeySigner(process.env.PRIVATE_KEY as `0x${string}`)

const policy: Policy = {
  chains:                 ['ethereum'],
  maxSpendPerTx:          { token: 'USDC', amount: 1000n, decimals: 6 },
  allowedContracts:       [{ address: '0xYOUR_CONTRACT', chain: 'ethereum' }],
  requireSimulation:      true,
  gasBufferMultiplier:    1.2,
  humanApprovalThreshold: { token: 'USDC', amount: 10000n, decimals: 6 },
  humanApprovalTimeoutMs: 30000,
  capLockMode:            'per-agent',
}

const agent = createAgent(
  { chains: ['ethereum'], policies: policy, signer },
  { ethereum: { simulate: simulateEvmAction } },
  { ethereum: 'https://ethereum.publicnode.com' },
  (action, chainId, rpcUrl, evaluation, simulation) =>
    executeEvmAction(action, chainId, rpcUrl, signer, evaluation, simulation)
)

const result = await agent.submit({
  action: {
    kind:  'transfer',
    chain: 'ethereum',
    token: { token: 'ETH', amount: 100000000000000000n, decimals: 18 },
    to:    '0xRECIPIENT',
  },
  policy,
})

switch (result.status) {
  case 'success':
    console.log('tx hash:', result.receipt.txHash)
    break
  case 'policy_rejected':
    console.log('rejected:', result.evaluation.rejectionReason)
    break
  case 'simulation_failed':
    console.log('simulation failed:', result.simulation.caveats)
    break
  case 'approval_timeout':
    console.log('approval required above threshold')
    break
  case 'execution_failed':
    console.log('failed:', result.reason)
    break
}