using MaksIT.Core.Security;


namespace MaksIT.Core.Tests.Security;

public class JwtGeneratorTests {
  private const string Secret = "supersecretkey12345678901234567890";
  private const string Issuer = "testIssuer";
  private const string Audience = "testAudience";
  private const double Expiration = 30; // 30 minutes
  private const string Username = "testUser";
  private readonly List<string> Roles = new List<string> { "Admin", "User" };

  [Fact]
  public void GenerateToken_ShouldReturnValidToken() {
    // Act
    var (token, jwtTokenClaims) = JwtGenerator.GenerateToken(Secret, Issuer, Audience, Expiration, Username, Roles);

    // Assert
    Assert.False(string.IsNullOrEmpty(token));
  }

  [Fact]
  public void ValidateToken_ShouldReturnClaimsPrincipal_WhenTokenIsValid() {
    // Arrange
    var (token, _) = JwtGenerator.GenerateToken(Secret, Issuer, Audience, Expiration, Username, Roles);

    // Act
    var jwtTokenClaims = JwtGenerator.ValidateToken(Secret, Issuer, Audience, token);

    // Assert
    Assert.NotNull(jwtTokenClaims);
    Assert.Equal(Username, jwtTokenClaims.Username);
    Assert.Contains(jwtTokenClaims.Roles ?? new List<string>(), c => c == "Admin");
    Assert.Contains(jwtTokenClaims.Roles ?? new List<string>(), c => c == "User");
  }

  [Fact]
  public void ValidateToken_ShouldReturnNull_WhenTokenIsInvalid() {
    // Arrange
    var invalidToken = "invalidToken";

    // Act
    var principal = JwtGenerator.ValidateToken(Secret, Issuer, Audience, invalidToken);

    // Assert
    Assert.Null(principal);
  }

  [Fact]
  public void GenerateRefreshToken_ShouldReturnNonEmptyString() {
    // Act
    var refreshToken = JwtGenerator.GenerateRefreshToken();

    // Assert
    Assert.False(string.IsNullOrEmpty(refreshToken));
  }

  [Fact]
  public void GenerateSecret_ShouldReturnDifferentValuesOnSubsequentCalls() {
    // Act
    string secret1 = JwtGenerator.GenerateSecret();
    string secret2 = JwtGenerator.GenerateSecret();

    // Assert
    Assert.False(string.IsNullOrEmpty(secret1));
    Assert.False(string.IsNullOrEmpty(secret2));
    Assert.NotEqual(secret1, secret2); // Ensure the secrets are unique
  }
}