/**
 * Integration tests for wallet management flow
 */

import { SmartWalletContext } from "../../contexts/SmartWalletContext";
import { validateAddress } from "../../utils/security";
import { SmartWalletType } from "../../types";
import { ethers } from "ethers";

// Mock provider
class MockProvider extends ethers.providers.BaseProvider {
  constructor() {
    super(ethers.providers.getNetwork(1)); // Mainnet network
  }
  
  async getNetwork() {
    return { chainId: 1, name: "mainnet" };
  }
  
  async getBalance(address: string) {
    return ethers.BigNumber.from("1000000000000000000"); // 1 ETH
  }
  
  async getCode(address: string): Promise<string> {
    // Return empty for EOA, non-empty for contract
    if (address.toLowerCase() === "0x1234567890123456789012345678901234567890") {
      return "0x608060405234801561001057600080fd5b50"; // Contract code
    }
    return "0x";
  }
  
  async perform(method: string, params: any): Promise<any> {
    throw new Error("Not implemented");
  }
}

describe("Wallet Management Integration Tests", () => {
  let provider: MockProvider;

  beforeEach(() => {
    provider = new MockProvider();
    // Clear localStorage
    if (typeof window !== "undefined") {
      localStorage.clear();
    }
  });

  describe("Wallet Creation Flow", () => {
    it("should create a new wallet with valid configuration", async () => {
      const owners = [
        "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb",
        "0x8ba1f109551bD432803012645Hac136c22C9e8",
      ];
      const threshold = 2;

      // Validate all owners
      const validatedOwners = owners.map(owner => {
        const validation = validateAddress(owner);
        expect(validation.valid).toBe(true);
        return validation.checksummed!;
      });

      // Validate threshold
      expect(threshold).toBeGreaterThan(0);
      expect(threshold).toBeLessThanOrEqual(validatedOwners.length);

      // Wallet creation would happen here
      // In real implementation, this would call createWallet
      expect(validatedOwners.length).toBe(2);
      expect(threshold).toBe(2);
    });

    it("should reject wallet creation with invalid owners", () => {
      const invalidOwners = [
        "invalid-address",
        "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb",
      ];

      invalidOwners.forEach(owner => {
        const validation = validateAddress(owner);
        if (owner === "invalid-address") {
          expect(validation.valid).toBe(false);
        } else {
          expect(validation.valid).toBe(true);
        }
      });
    });

    it("should reject wallet creation with invalid threshold", () => {
      const owners = [
        "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb",
        "0x8ba1f109551bD432803012645Hac136c22C9e8",
      ];
      const invalidThreshold = 3; // Exceeds owner count

      expect(invalidThreshold).toBeGreaterThan(owners.length);
    });

    it("should reject duplicate owners", () => {
      const owners = [
        "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb",
        "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb", // Duplicate
      ];

      const uniqueOwners = new Set(owners.map(o => o.toLowerCase()));
      expect(uniqueOwners.size).toBeLessThan(owners.length);
    });
  });

  describe("Owner Management Flow", () => {
    it("should add owner with validation", async () => {
      const existingOwners = [
        "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb",
      ];
      const newOwner = "0x8ba1f109551bD432803012645Hac136c22C9e8";

      // Validate new owner
      const validation = validateAddress(newOwner);
      expect(validation.valid).toBe(true);

      // Check for duplicates
      const isDuplicate = existingOwners.some(
        o => o.toLowerCase() === newOwner.toLowerCase()
      );
      expect(isDuplicate).toBe(false);

      // Check if contract
      const code: string = await provider.getCode(validation.checksummed!);
      const isContract = code !== "0x" && code !== "0x0";
      expect(isContract).toBe(false); // EOA address - code should be "0x"
    });

    it("should reject adding contract as owner", async () => {
      const contractAddress = "0x1234567890123456789012345678901234567890";
      
      const validation = validateAddress(contractAddress);
      expect(validation.valid).toBe(true);

      const code: string = await provider.getCode(validation.checksummed!);
      const isContract = code !== "0x" && code !== "0x0";
      expect(isContract).toBe(true); // Contract address - code should be non-empty
    });

    it("should remove owner with threshold validation", () => {
      const owners = [
        "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb",
        "0x8ba1f109551bD432803012645Hac136c22C9e8",
        "0x9ba1f109551bD432803012645Hac136c22C9e9",
      ];
      const threshold = 2;
      const ownerToRemove = owners[0];

      const newOwners = owners.filter(
        o => o.toLowerCase() !== ownerToRemove.toLowerCase()
      );

      // Cannot remove if threshold would exceed owner count
      expect(newOwners.length).toBeGreaterThanOrEqual(threshold);
      expect(newOwners.length).toBe(2);
    });

    it("should reject removing last owner", () => {
      const owners = ["0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb"];

      expect(owners.length).toBe(1);
      // Cannot remove last owner
      expect(owners.length).toBeGreaterThan(0);
    });

    it("should update threshold with validation", () => {
      const owners = [
        "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb",
        "0x8ba1f109551bD432803012645Hac136c22C9e8",
        "0x9ba1f109551bD432803012645Hac136c22C9e9",
      ];
      const newThreshold = 2;

      expect(newThreshold).toBeGreaterThan(0);
      expect(newThreshold).toBeLessThanOrEqual(owners.length);
    });
  });

  describe("Wallet Connection Flow", () => {
    it("should connect to existing wallet with validation", async () => {
      const walletAddress = "0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb";
      const networkId = 1;

      // Validate address
      const addressValidation = validateAddress(walletAddress);
      expect(addressValidation.valid).toBe(true);

      // Validate network
      const SUPPORTED_NETWORKS = [1, 5, 137, 42161, 10, 8453, 100, 56, 250, 43114];
      expect(SUPPORTED_NETWORKS.includes(networkId)).toBe(true);

      // Verify wallet exists (would check on-chain in real implementation)
      const balance = await provider.getBalance(addressValidation.checksummed!);
      expect(balance.gt(0) || balance.eq(0)).toBe(true); // Any balance is valid
    });

    it("should reject connection with invalid address", () => {
      const invalidAddress = "not-an-address";
      const validation = validateAddress(invalidAddress);
      expect(validation.valid).toBe(false);
    });

    it("should reject connection with unsupported network", () => {
      const networkId = 99999;
      const SUPPORTED_NETWORKS = [1, 5, 137, 42161, 10, 8453, 100, 56, 250, 43114];
      expect(SUPPORTED_NETWORKS.includes(networkId)).toBe(false);
    });
  });
});