import { describe, it, expect } from "vitest";

describe("Slots Router - Wallet Balance Integration", () => {
  describe("balance calculations", () => {
    it("should deduct bet amount from balance", () => {
      const initialBalance = 250.75;
      const betAmount = 0.5;
      const winAmount = 1.0;

      const newBalance = initialBalance - betAmount + winAmount;

      expect(newBalance).toBe(251.25);
      expect(newBalance).toBeGreaterThan(initialBalance);
    });

    it("should prevent spin if balance is insufficient", () => {
      const userBalance = 0.1;
      const betAmount = 0.5;

      const canSpin = userBalance >= betAmount;

      expect(canSpin).toBe(false);
    });

    it("should handle zero balance correctly", () => {
      const userBalance = 0;
      const betAmount = 0.01;

      const canSpin = userBalance >= betAmount;

      expect(canSpin).toBe(false);
    });

    it("should calculate new balance correctly after win", () => {
      const initialBalance = 100;
      const betAmount = 10;
      const winAmount = 50;

      const newBalance = initialBalance - betAmount + winAmount;

      expect(newBalance).toBe(140);
    });

    it("should calculate new balance correctly after loss", () => {
      const initialBalance = 100;
      const betAmount = 10;
      const winAmount = 0;

      const newBalance = initialBalance - betAmount + winAmount;

      expect(newBalance).toBe(90);
    });
  });

  describe("balance sync after multiple spins", () => {
    it("should accumulate balance changes correctly", () => {
      let balance = 100;

      // First spin - loss
      balance = balance - 10 + 0;
      expect(balance).toBe(90);

      // Second spin - win
      balance = balance - 10 + 25;
      expect(balance).toBe(105);

      // Third spin - loss
      balance = balance - 10 + 0;
      expect(balance).toBe(95);

      // Fourth spin - win
      balance = balance - 10 + 50;
      expect(balance).toBe(135);
    });

    it("should maintain balance precision with decimal values", () => {
      let balance = 100.5;

      balance = balance - 0.25 + 0.75;
      expect(balance).toBeCloseTo(101.0, 2);

      balance = balance - 0.1 + 0.05;
      expect(balance).toBeCloseTo(100.95, 2);
    });
  });

  describe("wallet balance types", () => {
    it("should differentiate between GC and SC balances", () => {
      const wallet = {
        gcBalance: 500, // Gold Coins
        scBalance: 1000, // Sweeps Coins
      };

      expect(wallet.gcBalance).toBe(500);
      expect(wallet.scBalance).toBe(1000);
      expect(wallet.gcBalance).not.toBe(wallet.scBalance);
    });

    it("should handle independent balance updates for GC and SC", () => {
      let gcBalance = 100;
      let scBalance = 200;

      // Update only SC
      scBalance = scBalance - 10 + 5;

      expect(gcBalance).toBe(100); // Unchanged
      expect(scBalance).toBe(195); // Updated
    });
  });

  describe("balance validation", () => {
    it("should validate minimum bet amount", () => {
      const minBet = 0.01;
      const userBalance = 0.005;

      const canBet = userBalance >= minBet;

      expect(canBet).toBe(false);
    });

    it("should validate maximum bet amount", () => {
      const maxBet = 5.0;
      const userBalance = 100;
      const betAmount = 10;

      const canBet = betAmount <= maxBet && userBalance >= betAmount;

      expect(canBet).toBe(false);
    });

    it("should allow valid bet within range", () => {
      const minBet = 0.01;
      const maxBet = 5.0;
      const userBalance = 100;
      const betAmount = 1.0;

      const canBet = betAmount >= minBet && betAmount <= maxBet && userBalance >= betAmount;

      expect(canBet).toBe(true);
    });
  });

  describe("balance string parsing", () => {
    it("should parse balance strings to numbers correctly", () => {
      const gcBalance = "100.50";
      const scBalance = "250.75";

      const parsedGc = parseFloat(gcBalance);
      const parsedSc = parseFloat(scBalance);

      expect(parsedGc).toBe(100.5);
      expect(parsedSc).toBe(250.75);
      expect(typeof parsedGc).toBe("number");
      expect(typeof parsedSc).toBe("number");
    });

    it("should handle zero balance strings", () => {
      const balance = "0";
      const parsed = parseFloat(balance);

      expect(parsed).toBe(0);
      expect(typeof parsed).toBe("number");
    });

    it("should handle large balance strings", () => {
      const balance = "999999.99";
      const parsed = parseFloat(balance);

      expect(parsed).toBe(999999.99);
    });
  });

  describe("bet amount validation", () => {
    it("should reject bet if it exceeds user balance", () => {
      const userBalance = 50;
      const betAmount = 100;

      const isValid = userBalance >= betAmount;

      expect(isValid).toBe(false);
    });

    it("should accept bet if it equals user balance", () => {
      const userBalance = 50;
      const betAmount = 50;

      const isValid = userBalance >= betAmount;

      expect(isValid).toBe(true);
    });

    it("should accept bet if it is less than user balance", () => {
      const userBalance = 50;
      const betAmount = 25;

      const isValid = userBalance >= betAmount;

      expect(isValid).toBe(true);
    });
  });

  describe("win/loss calculations", () => {
    it("should calculate payout correctly for winning spin", () => {
      const betAmount = 10;
      const multiplier = 5; // 5x multiplier for winning combination

      const payout = betAmount * multiplier;

      expect(payout).toBe(50);
    });

    it("should return zero payout for losing spin", () => {
      const betAmount = 10;
      const multiplier = 0; // No match

      const payout = betAmount * multiplier;

      expect(payout).toBe(0);
    });

    it("should calculate net profit correctly", () => {
      const initialBalance = 1000;
      const totalBet = 500;
      const totalWin = 750;

      const netProfit = totalWin - totalBet;
      const finalBalance = initialBalance + netProfit;

      expect(netProfit).toBe(250);
      expect(finalBalance).toBe(1250);
    });
  });
});