using Omika.Diagnostics.Tasks;
using Omika.Diagnostics.Tests.Fakes;
using Omika.Diagnostics.Web.Pages;

namespace Omika.Diagnostics.Tests;

/// <summary>
/// T25 — Tâches de traitement : statuts, mapping d'affichage « traité / non traité »
/// (<see cref="UiTaskContext"/>) et contrat du repository (fake, miroir du Npgsql).
/// </summary>
public class DiagnosticTaskTests
{
    private static DiagnosticTaskRecord MakeTask(string status) => new()
    {
        Id = 1,
        GroupUrlIdentifier = "group",
        Title = "T",
        Status = status,
        CreatedByUsername = "alice",
        CreatedAtUtc = DateTimeOffset.UtcNow,
        UpdatedAtUtc = DateTimeOffset.UtcNow
    };

    // ------------------------------------------------------ statuts ----------------
    [Theory]
    [InlineData("Todo", DiagnosticTaskStatuses.Todo)]
    [InlineData("todo", DiagnosticTaskStatuses.Todo)]
    [InlineData("inprogress", DiagnosticTaskStatuses.InProgress)]
    [InlineData("RESOLVED", DiagnosticTaskStatuses.Resolved)]
    [InlineData("rejected", DiagnosticTaskStatuses.Rejected)]
    public void Status_Normalize_IsCaseInsensitive(string raw, string expected) =>
        Assert.Equal(expected, DiagnosticTaskStatuses.Normalize(raw));

    [Fact]
    public void Status_Unknown_FallsBackToTodo() =>
        Assert.Equal(DiagnosticTaskStatuses.Todo, DiagnosticTaskStatuses.Normalize("Inconnu"));

    [Fact]
    public void Status_TerminalAndOpen()
    {
        Assert.True(DiagnosticTaskStatuses.IsTerminal(DiagnosticTaskStatuses.Resolved));
        Assert.True(DiagnosticTaskStatuses.IsTerminal(DiagnosticTaskStatuses.Rejected));
        Assert.False(DiagnosticTaskStatuses.IsTerminal(DiagnosticTaskStatuses.Todo));
        Assert.False(DiagnosticTaskStatuses.IsTerminal(DiagnosticTaskStatuses.InProgress));

        Assert.True(DiagnosticTaskStatuses.IsOpen(DiagnosticTaskStatuses.Todo));
        Assert.True(DiagnosticTaskStatuses.IsOpen(DiagnosticTaskStatuses.InProgress));
        Assert.False(DiagnosticTaskStatuses.IsOpen(DiagnosticTaskStatuses.Resolved));
    }

    // -------------------------------------- mapping « traité / non traité » --------
    [Fact]
    public void Treatment_NoTask_IsATraiter()
    {
        Assert.Equal("À traiter", UiTaskContext.TreatmentLabel(null));
        Assert.Equal("badge badge--danger", UiTaskContext.TreatmentClass(null));
    }

    [Fact]
    public void Treatment_OpenTask_IsEnCours()
    {
        Assert.Equal("En cours", UiTaskContext.TreatmentLabel(MakeTask(DiagnosticTaskStatuses.Todo)));
        Assert.Equal("En cours", UiTaskContext.TreatmentLabel(MakeTask(DiagnosticTaskStatuses.InProgress)));
        Assert.Equal("badge badge--warning", UiTaskContext.TreatmentClass(MakeTask(DiagnosticTaskStatuses.InProgress)));
    }

    [Fact]
    public void Treatment_Resolved_IsTraite()
    {
        Assert.Equal("Traité", UiTaskContext.TreatmentLabel(MakeTask(DiagnosticTaskStatuses.Resolved)));
        Assert.Equal("badge badge--success", UiTaskContext.TreatmentClass(MakeTask(DiagnosticTaskStatuses.Resolved)));
    }

    [Fact]
    public void Treatment_Rejected_IsRejete()
    {
        Assert.Equal("Rejeté", UiTaskContext.TreatmentLabel(MakeTask(DiagnosticTaskStatuses.Rejected)));
        Assert.Equal("badge badge--muted", UiTaskContext.TreatmentClass(MakeTask(DiagnosticTaskStatuses.Rejected)));
    }

    // ------------------------------------------------------ repository -------------
    [Fact]
    public async Task Repository_Create_AndUnique()
    {
        var repo = new FakeDiagnosticTaskRepository();

        DiagnosticTaskRecord? created = await repo.CreateAsync(
            "grp-1", "Titre", null, null, DiagnosticTaskStatuses.Todo, "alice", null);

        Assert.NotNull(created);
        Assert.Equal(1, created.Id);
        Assert.Equal(DiagnosticTaskStatuses.Todo, created.Status);
        Assert.Null(created.ResolvedAtUtc);

        // Doublon : même signature → null.
        DiagnosticTaskRecord? duplicate = await repo.CreateAsync(
            "grp-1", "Autre", null, null, DiagnosticTaskStatuses.Todo, "alice", null);
        Assert.Null(duplicate);
    }

    [Fact]
    public async Task Repository_CreateTerminal_SetsResolvedAt()
    {
        var repo = new FakeDiagnosticTaskRepository();

        DiagnosticTaskRecord? created = await repo.CreateAsync(
            "grp-1", "Titre", null, "cause", DiagnosticTaskStatuses.Resolved, "alice", "bob");

        Assert.NotNull(created);
        Assert.Equal(DiagnosticTaskStatuses.Resolved, created.Status);
        Assert.NotNull(created.ResolvedAtUtc);
        Assert.Equal("bob", created.AssigneeUsername);
    }

    [Fact]
    public async Task Repository_Update_SetsAndClearsResolvedAt()
    {
        var repo = new FakeDiagnosticTaskRepository();
        await repo.CreateAsync("grp-1", "Titre", null, null, DiagnosticTaskStatuses.Todo, "alice", null);

        bool resolved = await repo.UpdateAsync(
            1, "Titre", null, "cause", DiagnosticTaskStatuses.Resolved, null);
        Assert.True(resolved);

        DiagnosticTaskRecord? task = await repo.GetByIdAsync(1);
        Assert.NotNull(task);
        Assert.Equal(DiagnosticTaskStatuses.Resolved, task!.Status);
        Assert.Equal("cause", task.Cause);
        Assert.NotNull(task.ResolvedAtUtc);

        // Retour en statut ouvert → la date de résolution est effacée.
        await repo.UpdateAsync(1, "Titre", null, "cause", DiagnosticTaskStatuses.InProgress, null);
        task = await repo.GetByIdAsync(1);
        Assert.Equal(DiagnosticTaskStatuses.InProgress, task!.Status);
        Assert.Null(task.ResolvedAtUtc);
    }
}