using Omika.App.Services;

namespace Omika.Tests.Mobile.Local;

/// <summary>
/// Tests du PlatformDeviceIdProvider : génération d'un identifiant unique et
/// stable entre les lancements. Ne contient aucune donnée personnelle.
/// </summary>
public class PlatformDeviceIdProviderTests
{
    [Fact]
    public async Task GetDeviceId_RetourneIdentifiantNonVide()
    {
        // Arrange
        var provider = new PlatformDeviceIdProvider();

        // Act
        string deviceId = await provider.GetDeviceIdAsync();

        // Assert
        Assert.False(string.IsNullOrWhiteSpace(deviceId));
    }

    [Fact]
    public async Task GetDeviceId_StableEntreAppels()
    {
        // Arrange
        var provider = new PlatformDeviceIdProvider();

        // Act
        string first = await provider.GetDeviceIdAsync();
        string second = await provider.GetDeviceIdAsync();

        // Assert : l'identifiant est stable.
        Assert.Equal(first, second);
    }

    [Fact]
    public async Task GetDeviceId_FormatGuid()
    {
        // Arrange
        var provider = new PlatformDeviceIdProvider();

        // Act
        string deviceId = await provider.GetDeviceIdAsync();

        // Assert : l'identifiant est un GUID (32 hex sans tirets).
        Assert.Equal(32, deviceId.Length);
        Assert.True(Guid.TryParseExact(deviceId, "N", out _));
    }
}