Evaluate a transaction

import { EvaluateTransactionOperationType } from '@portal-hq/core'

// Basic transaction evaluation
const handleEvaluateTransaction = async () => {
  try {
    const transaction = {
      to: '0x742d35Cc6634C0532925a3b844Bc454e4438f44e',
      value: '1000000000000000000', // 1 ETH
      data: undefined,
      maxFeePerGas: '30000000000',
      maxPriorityFeePerGas: '1500000000',
      gas: '21000',
      gasPrice: undefined
    };

    const evaluation = await portal.evaluateTransaction(
      transaction,
      'eip155:1',
      EvaluateTransactionOperationType.ALL
    );

    // Check validation results
    if (evaluation.validation) {
      console.log('Security Status:', evaluation.validation.status);

      if (evaluation.validation.status !== 'VALIDATED') {
        console.log('Warning:', evaluation.validation.description || 'Unknown issue');

        // Print detected security features
        evaluation.validation.features?.forEach((feature) => {
          console.log('Security Feature:', feature.type);
          console.log('Description:', feature.description);
        });
      }
    }

    // Check simulation results
    if (evaluation.simulation) {
      console.log('Simulation Status:', evaluation.simulation.status);

      // Print asset changes
      Object.entries(evaluation.simulation.assetsDiffs).forEach(([token, diffs]) => {
        console.log('\nToken:', token);
        diffs.forEach((diff) => {
          console.log('Incoming transfers:', diff['in']);
          console.log('Outgoing transfers:', diff.out);
        });
      });
    }
  } catch (error) {
    console.error('Evaluation failed:', error);
  }
};

// Contract interaction evaluation
const handleValidateTransaction = async () => {
  try {
    const transaction = {
      to: '0x742d35Cc6634C0532925a3b844Bc454e4438f44e',
      value: '0',
      data: '0xa9059cbb000000000000000000000000742d35cc6634c0532925a3b844bc454e4438f44e0000000000000000000000000000000000000000000000000de0b6b3a7640000', // ERC20 transfer
      maxFeePerGas: undefined,
      maxPriorityFeePerGas: undefined,
      gas: '65000',
      gasPrice: '20000000000'
    };

    // Validate only
    const evaluation = await portal.evaluateTransaction(
      transaction,
      'eip155:1',
      EvaluateTransactionOperationType.VALIDATION
    );

    if (evaluation.validation) {
      // Handle potential security issues
      switch (evaluation.validation.status) {
        case 'VALIDATED':
          console.log('Transaction is safe');
          break;
        case 'WARNING':
          console.log('Warning:', evaluation.validation.description || 'Unknown warning');
          break;
        case 'BLOCKED':
          console.log('Blocked:', evaluation.validation.reason || 'Unknown reason');
          break;
        default:
          console.log('Unknown status:', evaluation.validation.status);
      }
    }
  } catch (error) {
    console.error('Validation failed:', error);
  }
};