using Xunit;
using KArtSell.Modules.IdentityAccess.ManageIdentityAndRoles.Events;

namespace KArtSell.IdentityAccess.Tests.Features;

public class IdentityCreatedEventTests
{
    [Fact]
    public void IdentityCreated_Create_ReturnsValidRecord()
    {
        var identityId = Guid.NewGuid();
        var email = "test@example.com";
        var displayName = "Test User";
        var correlationId = Guid.NewGuid().ToString();
        var occurredAt = DateTime.UtcNow;

        var @event = new IdentityCreated
        {
            IdentityId = identityId,
            Email = email,
            DisplayName = displayName,
            CorrelationId = correlationId,
            OccurredAt = occurredAt
        };

        Assert.Equal(identityId, @event.IdentityId);
        Assert.Equal(email, @event.Email);
        Assert.Equal(displayName, @event.DisplayName);
        Assert.Equal(correlationId, @event.CorrelationId);
        Assert.Equal(occurredAt, @event.OccurredAt);
    }

    [Fact]
    public void IdentityCreated_Immutability_RecordBehavior()
    {
        var event1 = new IdentityCreated
        {
            IdentityId = Guid.NewGuid(),
            Email = "test1@example.com",
            DisplayName = "Test 1",
            CorrelationId = "corr-1",
            OccurredAt = DateTime.UtcNow
        };

        var event2 = event1 with { Email = "test2@example.com" };

        Assert.NotEqual(event1.Email, event2.Email);
        Assert.Equal(event1.IdentityId, event2.IdentityId);
    }

    [Fact]
    public void IdentityCreated_Equality_SameValuesAreEqual()
    {
        var id = Guid.NewGuid();
        var email = "test@example.com";
        var displayName = "Test User";
        var correlationId = "corr-123";
        var occurredAt = new DateTime(2026, 8, 17, 12, 0, 0, DateTimeKind.Utc);

        var event1 = new IdentityCreated
        {
            IdentityId = id,
            Email = email,
            DisplayName = displayName,
            CorrelationId = correlationId,
            OccurredAt = occurredAt
        };

        var event2 = new IdentityCreated
        {
            IdentityId = id,
            Email = email,
            DisplayName = displayName,
            CorrelationId = correlationId,
            OccurredAt = occurredAt
        };

        Assert.Equal(event1, event2);
    }

    [Fact]
    public void IdentityCreated_Serialization_CanRoundTrip()
    {
        var @event = new IdentityCreated
        {
            IdentityId = Guid.NewGuid(),
            Email = "test@example.com",
            DisplayName = "Test User",
            CorrelationId = Guid.NewGuid().ToString(),
            OccurredAt = DateTime.UtcNow
        };

        var json = System.Text.Json.JsonSerializer.Serialize(@event);
        var deserialized = System.Text.Json.JsonSerializer.Deserialize<IdentityCreated>(json);

        Assert.NotNull(deserialized);
        Assert.Equal(@event.IdentityId, deserialized.IdentityId);
        Assert.Equal(@event.Email, deserialized.Email);
        Assert.Equal(@event.DisplayName, deserialized.DisplayName);
        Assert.Equal(@event.CorrelationId, deserialized.CorrelationId);
    }
}