import { Account, DENOM as ALNT_DENOM } from '@cerc-io/registry-sdk';
import { DeliverTxResponse } from '@cosmjs/stargate';

import { registryTransactionWithRetry } from '@/app/api/registry/route';
import { getRegistry, getRegistryConfig } from '../config';
import { LaconicTransferResult } from '../types';

export const transferLNTTokens = async (): Promise<LaconicTransferResult> => {
  try {
    const registryConfig = getRegistryConfig();
    const registry = getRegistry();

    console.log('Resolving deployer LRN to get payment address...');

    // Resolve the deployer LRN to get the payment address
    const deployerLrn = process.env.DEPLOYER_LRN;
    if (!deployerLrn) {
      return {
        success: false,
        error: 'DEPLOYER_LRN environment variable is required'
      };
    }

    const resolveResult = await registry.resolveNames([deployerLrn]);
    console.log('Resolve result:', resolveResult);

    if (!resolveResult || resolveResult.length === 0) {
      return {
        success: false,
        error: `Failed to resolve deployer LRN: ${deployerLrn}`
      };
    }

    const deployerRecord = resolveResult[0];
    if (!deployerRecord.attributes) {
      return {
        success: false,
        error: 'Deployer record has no attributes'
      };
    }

    // Find the paymentAddress attribute
    const paymentAddress = deployerRecord.attributes.paymentAddress
    const deployerMinPayment = (deployerRecord.attributes.minimumPayment as string).split(ALNT_DENOM)[0]

    console.log('Found payment address:', paymentAddress);
    console.log('Found minimum payment:', deployerMinPayment);

    console.log('Initiating LNT transfer...');

    // Send tokens from prefilled account to payment address
    const transferResult = await sendTokensToAccount(
        registryConfig.privateKey,
        paymentAddress,
        deployerMinPayment
    );

    console.log('LNT transfer result:', transferResult);

    if (!transferResult.transactionHash) {
      return {
        success: false,
        error: 'LNT transfer failed - no transaction hash returned'
      };
    }

    return {
      success: true,
      transactionHash: transferResult.transactionHash
    };
  } catch (error) {
    console.error('Failed to transfer LNT tokens:', error);
    return {
      success: false,
      error: error instanceof Error ? error.message : 'Unknown error during LNT transfer'
    };
  }
};

const getAccount = async (accountPrivateKey: string): Promise<Account> => {
  const account = new Account(
    Buffer.from(accountPrivateKey, 'hex'),
  );
  await account.init();

  return account;
}


const sendTokensToAccount = async (
  senderPrivateKey: string,
  receiverAddress: string,
  amount: string,
): Promise<DeliverTxResponse> => {
  const registry = getRegistry();

  const account = await getAccount(senderPrivateKey);
  const laconicClient = await registry.getLaconicClient(account);

  const txResponse: DeliverTxResponse = await registryTransactionWithRetry(
    () =>
      laconicClient.sendTokens(
        account.address,
        receiverAddress,
        [
          {
            denom: ALNT_DENOM,
            amount,
          },
        ],
        "auto",
      ),
  );

  return txResponse;
}