/**
 * QuoterFactory creates quoter V2 contracts with dynamic address resolution
 *
 * Ports logic from serverless-strategy-tx-processor to enable protocol-specific
 * quoter contract creation with addresses resolved from network configuration.
 */

import { Contract, ContractRunner } from 'ethers';
import { ProtocolDetector } from './ProtocolDetector';
import { AbiManager } from './AbiManager';
import { getQuoterV2Address } from './ProtocolConfig';
import { NetworkConfig } from './NetworkConfig';

/**
 * Factory for creating QuoterV2 contract instances with dynamic address resolution
 *
 * Combines protocol detection, network configuration, and ABI management to create
 * quoter contracts without requiring explicit addresses.
 *
 * @example
 * ```typescript
 * const factory = new QuoterFactory(networkConfig);
 * const quoter = factory.createQuoterV2('uniswapV3VaultBeacon', signer);
 * ```
 */
export class QuoterFactory {
  private protocolDetector: ProtocolDetector;
  private abiManager: AbiManager;
  private networkConfig: NetworkConfig;

  /**
   * Create a QuoterFactory instance
   *
   * @param networkConfig - Network configuration with contract addresses
   * @param protocolDetector - Optional ProtocolDetector instance
   * @param abiManager - Optional AbiManager instance
   */
  constructor(
    networkConfig: NetworkConfig,
    protocolDetector?: ProtocolDetector,
    abiManager?: AbiManager,
  ) {
    this.networkConfig = networkConfig;
    this.protocolDetector = protocolDetector || new ProtocolDetector();
    this.abiManager = abiManager || new AbiManager();
  }

  /**
   * Create a QuoterV2 contract instance with dynamic address resolution
   *
   * This method:
   * 1. Detects the protocol from the beacon name
   * 2. Resolves the quoter address from network config
   * 3. Selects the protocol-specific ABI
   * 4. Creates and returns the contract instance
   *
   * @param beaconName - The vault beacon name to determine protocol
   * @param signer - Contract runner for the contract
   * @returns ethers.Contract - QuoterV2 contract instance
   * @throws Error if quoter address not found in network config
   *
   * @example
   * ```typescript
   * const quoter = factory.createQuoterV2('quickSwapV3VaultBeacon', signer);
   * // Returns contract at QuickSwapQuoterV2 address with correct ABI
   * ```
   */
  createQuoterV2(beaconName: string, signer: ContractRunner): Contract {
    // Get protocol from beacon name
    const protocol = this.protocolDetector.getProtocol(beaconName);

    // Resolve quoter address from network config
    const quoterV2Address = getQuoterV2Address(protocol, this.networkConfig);

    if (!quoterV2Address) {
      throw new Error(`QuoterV2 address not found for protocol: ${protocol}`);
    }

    // Get protocol-specific ABI
    const abi = this.abiManager.getQuoterV2Abi(beaconName);

    // Create and return contract
    return new Contract(quoterV2Address, abi, signer);
  }
}