using PnvPanel.Domain.Exceptions;
using PnvPanel.Domain.Telegram;
using Xunit;

namespace PnvPanel.Domain.Tests.Telegram;

public class TelegramLinkTokenTests
{
    [Fact]
    public void Create_IsValidBeforeConsumptionOrExpiry()
    {
        var userId = Guid.NewGuid();

        var token = TelegramLinkToken.Create(userId, TimeSpan.FromMinutes(10));

        Assert.Equal(userId, token.UserId);
        Assert.True(token.IsValid);
        Assert.Null(token.ConsumedAt);
        Assert.False(string.IsNullOrWhiteSpace(token.Token));
    }

    [Fact]
    public void Create_GeneratesUniqueTokens()
    {
        var a = TelegramLinkToken.Create(Guid.NewGuid(), TimeSpan.FromMinutes(10));
        var b = TelegramLinkToken.Create(Guid.NewGuid(), TimeSpan.FromMinutes(10));

        Assert.NotEqual(a.Token, b.Token);
    }

    [Fact]
    public void Consume_WhenValid_SetsConsumedAtAndInvalidates()
    {
        var token = TelegramLinkToken.Create(Guid.NewGuid(), TimeSpan.FromMinutes(10));

        token.Consume();

        Assert.NotNull(token.ConsumedAt);
        Assert.False(token.IsValid);
    }

    [Fact]
    public void Consume_WhenAlreadyConsumed_Throws()
    {
        var token = TelegramLinkToken.Create(Guid.NewGuid(), TimeSpan.FromMinutes(10));
        token.Consume();

        Assert.Throws<DomainException>(() => token.Consume());
    }

    [Fact]
    public void Consume_WhenExpired_Throws()
    {
        var token = TelegramLinkToken.Create(Guid.NewGuid(), TimeSpan.Zero);

        Assert.False(token.IsValid);
        Assert.Throws<DomainException>(() => token.Consume());
    }
}