import { PolicyBuilder } from "@policy-kit/sdk";
import { parseEther, parseUnits } from "viem";

// Approved protocol addresses
const UNISWAP_ROUTER = "0x68b3465833fb72A70ecDF485E0e4C7bD8665Fc45";
const AAVE_POOL = "0x7d2768dE32b0b80b7a3454c06BdAc94A69DDc7A9";
const COMPOUND_COMET = "0xc3d688B66703497DAA19211EEdff47f25384cdc3";
const LIDO = "0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84";

// Token addresses
const USDC = "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48";
const DAI = "0x6B175474E89094C44Da98b954EedeAC495271d0F";
const WETH = "0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2";

const policy = new PolicyBuilder("dao-treasury-guard")
  // Approved protocol targets
  .allowTargets([
    UNISWAP_ROUTER,
    AAVE_POOL,
    COMPOUND_COMET,
    LIDO,
    USDC,
    DAI,
    WETH,
  ])

  // Max 50 ETH per transaction
  .maxValue(parseEther("50"))

  // Daily spending limits per token
  .spendLimit(USDC, parseUnits("500000", 6), 86400)   // 500k USDC/day
  .spendLimit(DAI, parseUnits("500000", 18), 86400)    // 500k DAI/day

  // 30 minute cooldown between executions
  .cooldown(1800)

  // Max 1% slippage on any swap
  .maxSlippageBps(100)

  // Require simulation for all transactions
  .requireSimulation(true)

  // Custom rule: verify proposal was approved on-chain
  .customRule({
    name: "check-governance-approval",
    description: "Verify this transaction was approved by DAO governance",
    cid: "QmGovernanceCheckRuleCID",
    params: {
      governorAddress: "0xDAOGovernorContract",
      minVotingPeriod: 172800, // 2 days
      minQuorum: 4, // 4% quorum
    },
  })

  // Block if Lit is unavailable — treasury security is paramount
  .setFailMode("closed")

  .build();

// Custom rule logic (deployed to IPFS)
// Executed by Lit Protocol during Tier 3 evaluation
export async function evaluate(params, txParams) {
  const { governorAddress, minVotingPeriod, minQuorum } = params;

  // Compute the proposal ID from transaction parameters
  const proposalId = computeProposalId(txParams);

  // Check proposal state on-chain
  const state = await getProposalState(governorAddress, proposalId);

  if (state !== "Queued" && state !== "Executable") {
    return { passed: false, reason: "Proposal not in executable state" };
  }

  // Verify voting period and quorum
  const proposal = await getProposal(governorAddress, proposalId);
  if (proposal.votingPeriod < minVotingPeriod) {
    return { passed: false, reason: "Voting period too short" };
  }

  return { passed: true };
}

const pk = new PolicyKit({
  publicClient,
  walletClient: treasuryWalletClient,
  engineAddress: POLICY_ENGINE_ADDRESS,
  ipfsBackends: [{ type: "pinata", jwt: process.env.PINATA_JWT }],
  litConfig: {
    network: "naga",
    litActionCID: process.env.LIT_ACTION_CID,
  },
});

const result = await pk.deployPolicy(policy);
console.log("DAO treasury guard deployed:", result.cid);