using Api.SeaHavenIndustries.Controllers;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc.ActionConstraints;
using Microsoft.AspNetCore.Mvc.Controllers;
using Microsoft.AspNetCore.Mvc.Infrastructure;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.DependencyInjection;
using SeaHaven.Services.Interfaces;
using System.Security.Claims;
using Xunit;

namespace Api.SeaHavenIndustries.Tests;

public sealed class WorkOrderReconciliationControllerTests
{
    [Fact]
    public async Task Admin_trigger_returns_durable_run_and_status_is_queryable()
    {
        var runId = Guid.NewGuid();
        var service = new StubService(runId);
        var controller = new WorkOrderReconciliationController(service);

        var trigger = Assert.IsType<AcceptedResult>(
            await controller.Trigger(CancellationToken.None));
        Assert.Equal(StatusCodes.Status202Accepted, trigger.StatusCode);
        Assert.Equal(runId, service.LastRunId);
        var status = Assert.IsType<OkObjectResult>(
            await controller.Status(CancellationToken.None));
        Assert.IsType<WorkOrderReconciliationStatus>(status.Value);
    }

    [Fact]
    public async Task Disabled_trigger_returns_sanitized_unavailable_response()
    {
        var controller = new WorkOrderReconciliationController(new StubService(Guid.Empty));

        var result = Assert.IsType<ObjectResult>(
            await controller.Trigger(CancellationToken.None));

        Assert.Equal(StatusCodes.Status503ServiceUnavailable, result.StatusCode);
        Assert.DoesNotContain("exception", result.Value!.ToString(), StringComparison.OrdinalIgnoreCase);
    }

    [Fact]
    public void Framework_action_descriptors_expose_only_admin_get_and_post_reconciliation_routes()
    {
        var services = new ServiceCollection();
        services.AddLogging();
        services.AddMvcCore()
            .AddApplicationPart(typeof(WorkOrderReconciliationController).Assembly);
        using var provider = services.BuildServiceProvider();
        var descriptors = provider
            .GetRequiredService<IActionDescriptorCollectionProvider>()
            .ActionDescriptors
            .Items
            .OfType<ControllerActionDescriptor>()
            .Where(d => d.ControllerTypeInfo == typeof(WorkOrderReconciliationController))
            .ToList();

        var routes = descriptors
            .SelectMany(d => (d.ActionConstraints ?? Array.Empty<IActionConstraintMetadata>())
                .OfType<HttpMethodActionConstraint>()
                .SelectMany(c => c.HttpMethods)
                .Select(method => $"{method} {d.AttributeRouteInfo!.Template}"))
            .ToHashSet(StringComparer.Ordinal);

        Assert.True(routes.SetEquals(new[]
        {
            "GET api/admin/work-order-reconciliation",
            "POST api/admin/work-order-reconciliation"
        }));
        Assert.All(descriptors, descriptor =>
            Assert.Contains(
                descriptor.ControllerTypeInfo.GetCustomAttributes(typeof(AuthorizeAttribute), true)
                    .OfType<AuthorizeAttribute>(),
                attribute => attribute.Roles == "Admin"));
    }

    private sealed class StubService : IWorkOrderReconciliationService
    {
        private readonly Guid _runId;
        public StubService(Guid runId) => _runId = runId;
        public Guid LastRunId { get; private set; }

        public Task<WorkOrderReconciliationTriggerResult> TriggerAsync(
            ClaimsPrincipal user,
            string reason,
            CancellationToken cancellationToken)
        {
            LastRunId = _runId;
            return Task.FromResult(new WorkOrderReconciliationTriggerResult(
                _runId != Guid.Empty,
                _runId));
        }

        public Task<WorkOrderReconciliationStatus> GetStatusAsync(
            ClaimsPrincipal user,
            CancellationToken cancellationToken) =>
            Task.FromResult(new WorkOrderReconciliationStatus(
                _runId,
                "Pending",
                "admin",
                DateTimeOffset.UtcNow,
                null,
                null,
                0,
                0,
                null));
    }
}