using ItWorx.KnowledgeHub.Domain.Projects;

namespace ItWorx.KnowledgeHub.Domain.Tests;

public sealed class ProjectTests
{
    private static readonly DateTimeOffset Now = new(2026, 8, 1, 12, 0, 0, TimeSpan.Zero);

    private static Project CreateProject() =>
        Project.Create(Guid.NewGuid(), "Kennisbank vernieuwing", "Samenvatting", ProjectPriority.Medium, "Huidige stand.", Guid.NewGuid(), Guid.NewGuid(), Now);

    [Fact]
    public void Create_starts_in_concept_status_with_a_derived_slug()
    {
        var project = CreateProject();

        Assert.Equal(ProjectLifecycleStatus.Concept, project.Status);
        Assert.Equal("kennisbank-vernieuwing", project.Slug);
        Assert.Empty(project.Technologies);
    }

    [Theory]
    [InlineData(ProjectLifecycleStatus.Concept, ProjectLifecycleStatus.Planned, true)]
    [InlineData(ProjectLifecycleStatus.Planned, ProjectLifecycleStatus.Active, true)]
    [InlineData(ProjectLifecycleStatus.Active, ProjectLifecycleStatus.Blocked, true)]
    [InlineData(ProjectLifecycleStatus.Blocked, ProjectLifecycleStatus.Active, true)]
    [InlineData(ProjectLifecycleStatus.Active, ProjectLifecycleStatus.Maintenance, true)]
    [InlineData(ProjectLifecycleStatus.Active, ProjectLifecycleStatus.Completed, true)]
    [InlineData(ProjectLifecycleStatus.Completed, ProjectLifecycleStatus.Paused, true)]
    [InlineData(ProjectLifecycleStatus.Paused, ProjectLifecycleStatus.Active, true)]
    [InlineData(ProjectLifecycleStatus.Concept, ProjectLifecycleStatus.Archived, true)]
    [InlineData(ProjectLifecycleStatus.Concept, ProjectLifecycleStatus.Active, false)]
    [InlineData(ProjectLifecycleStatus.Archived, ProjectLifecycleStatus.Active, false)]
    [InlineData(ProjectLifecycleStatus.Completed, ProjectLifecycleStatus.Active, false)]
    public void ChangeStatus_only_allows_the_documented_lifecycle_transitions(
        ProjectLifecycleStatus from, ProjectLifecycleStatus to, bool expectedAllowed)
    {
        Assert.Equal(expectedAllowed, Project.CanTransition(from, to));
    }

    [Fact]
    public void ChangeStatus_throws_for_a_disallowed_transition()
    {
        var project = CreateProject();

        var exception = Record.Exception(() => project.ChangeStatus(ProjectLifecycleStatus.Active, Guid.NewGuid(), Now));

        Assert.IsType<InvalidOperationException>(exception);
    }

    [Fact]
    public void ChangeStatus_out_of_archived_is_always_rejected()
    {
        var project = CreateProject();
        project.ChangeStatus(ProjectLifecycleStatus.Archived, Guid.NewGuid(), Now);

        var exception = Record.Exception(() => project.ChangeStatus(ProjectLifecycleStatus.Active, Guid.NewGuid(), Now));

        Assert.IsType<InvalidOperationException>(exception);
        Assert.True(project.IsArchived);
    }

    [Fact]
    public void ReplaceTechnologies_normalizes_trims_deduplicates_and_bounds_the_list()
    {
        var project = CreateProject();

        project.ReplaceTechnologies([" .NET ", ".net", "PostgreSQL", "", "React"]);

        Assert.Equal([".NET", "PostgreSQL", "React"], project.Technologies);
    }
}