using Omika.Diagnostics.Queries;
using Omika.Diagnostics.Tests.Fakes;

namespace Omika.Diagnostics.Tests;

/// <summary>
/// Tâche 12 — Options de filtre : conservation de la valeur active (C8/C9) et
/// comportement des valeurs distinctes (borne, tri, exclusion des vides).
/// </summary>
public class DiagnosticFilterOptionsTests
{
    private static readonly DateTimeOffset From = new(2025, 1, 1, 0, 0, 0, TimeSpan.Zero);

    // --------------------------- C8 : filtre EventCode conserve sa valeur ----
    [Fact]
    public void EnsureIncluded_KeepsActiveEventCodeAtFrontWithoutDuplicate()
    {
        IReadOnlyList<string> options = new[] { "OMK-API-HTTP-001", "OMK-API-HTTP-003" };

        IReadOnlyList<string> result = DiagnosticFilterDefaults.EnsureIncluded(options, "OMK-WKR-SYNC-002");

        Assert.Equal(3, result.Count);
        Assert.Equal("OMK-WKR-SYNC-002", result[0]);
        Assert.Equal("OMK-API-HTTP-001", result[1]);
        Assert.Equal("OMK-API-HTTP-003", result[2]);
    }

    // ----------------------------- C9 : filtre version conserve sa valeur ----
    [Fact]
    public void EnsureIncluded_KeepsActiveVersionWithoutDuplicate()
    {
        IReadOnlyList<string> options = new[] { "1.0.0.0", "1.1.0.0" };

        IReadOnlyList<string> result = DiagnosticFilterDefaults.EnsureIncluded(options, "2.0.0.0");

        Assert.Equal(3, result.Count);
        Assert.Contains("2.0.0.0", result);
        Assert.Equal(1, result.Count(v => v == "2.0.0.0"));
    }

    [Fact]
    public void EnsureIncluded_ReturnsSameListWhenAlreadyPresent()
    {
        IReadOnlyList<string> options = new[] { "1.0.0.0", "1.1.0.0" };

        IReadOnlyList<string> result = DiagnosticFilterDefaults.EnsureIncluded(options, "1.0.0.0");

        Assert.Same(options, result);
        Assert.Equal(2, result.Count);
    }

    // ------------------------------------ Options : distinct, triées, bornées ----
    [Fact]
    public async Task GetFilterOptions_ReturnsDistinctSortedBoundedValues()
    {
        var repo = new FakeDiagnosticEventRepository();
        await repo.InsertBatchAsync(new[]
        {
            DiagnosticTestData.Event(Guid.NewGuid(), "A", From.AddMinutes(1), component: "Zeta"),
            DiagnosticTestData.Event(Guid.NewGuid(), "B", From.AddMinutes(2), component: "Alpha"),
            DiagnosticTestData.Event(Guid.NewGuid(), "C", From.AddMinutes(3), component: "Alpha"),
            DiagnosticTestData.Event(Guid.NewGuid(), "D", From.AddMinutes(4), component: null), // exclu (null)
            DiagnosticTestData.Event(Guid.NewGuid(), "E", From.AddMinutes(5), component: "  "), // exclu (vide)
        });

        IReadOnlyList<string> result = await repo.GetFilterOptionsAsync(
            DiagnosticFilterDimension.Component, From, 10);

        Assert.Equal(new[] { "Alpha", "Zeta" }, result);
    }

    [Fact]
    public async Task GetFilterOptions_RespectsLimit()
    {
        var repo = new FakeDiagnosticEventRepository();
        await repo.InsertBatchAsync(new[]
        {
            DiagnosticTestData.Event(Guid.NewGuid(), "A", From.AddMinutes(1), component: "C1"),
            DiagnosticTestData.Event(Guid.NewGuid(), "B", From.AddMinutes(2), component: "C2"),
            DiagnosticTestData.Event(Guid.NewGuid(), "C", From.AddMinutes(3), component: "C3"),
        });

        IReadOnlyList<string> result = await repo.GetFilterOptionsAsync(
            DiagnosticFilterDimension.Component, From, 2);

        Assert.Equal(2, result.Count);
    }

    // ---------------- T20 §3/§6 : options Component normalisées (une seule option) ----
    [Fact]
    public async Task GetFilterOptions_Component_NormalizesCaseAndWhitespace()
    {
        var repo = new FakeDiagnosticEventRepository();
        await repo.InsertBatchAsync(new[]
        {
            DiagnosticTestData.Event(Guid.NewGuid(), "A", From.AddMinutes(1), component: "Omika.Api"),
            DiagnosticTestData.Event(Guid.NewGuid(), "B", From.AddMinutes(2), component: "omika.api"),
            DiagnosticTestData.Event(Guid.NewGuid(), "C", From.AddMinutes(3), component: "OMIKA.API"),
            DiagnosticTestData.Event(Guid.NewGuid(), "D", From.AddMinutes(4), component: " Omika.Api "),
            DiagnosticTestData.Event(Guid.NewGuid(), "E", From.AddMinutes(5), component: "Omika.Worker"),
        });

        IReadOnlyList<string> result = await repo.GetFilterOptionsAsync(
            DiagnosticFilterDimension.Component, From, 10);

        // 4 variantes du même composant + 1 autre = 2 options logiques (tri ascendant).
        Assert.Equal(new[] { "Omika.Api", "Omika.Worker" }, result);
    }

    // ---------------- T20 §4/§6 : options ErrorCode normalisées (une seule option) ----
    [Fact]
    public async Task GetFilterOptions_ErrorCode_NormalizesCaseAndWhitespace()
    {
        var repo = new FakeDiagnosticEventRepository();
        await repo.InsertBatchAsync(new[]
        {
            DiagnosticTestData.Event(Guid.NewGuid(), "A", From.AddMinutes(1), errorCode: "timeout"),
            DiagnosticTestData.Event(Guid.NewGuid(), "B", From.AddMinutes(2), errorCode: "TIMEOUT"),
            DiagnosticTestData.Event(Guid.NewGuid(), "C", From.AddMinutes(3), errorCode: " Timeout"),
            DiagnosticTestData.Event(Guid.NewGuid(), "D", From.AddMinutes(4), errorCode: " timeout "),
            DiagnosticTestData.Event(Guid.NewGuid(), "E", From.AddMinutes(5), errorCode: "CRASH"),
        });

        IReadOnlyList<string> result = await repo.GetFilterOptionsAsync(
            DiagnosticFilterDimension.ErrorCode, From, 10);

        // 4 variantes du même code + 1 autre = 2 options logiques (tri ascendant).
        Assert.Equal(new[] { "CRASH", "TIMEOUT" }, result);
    }
}