#pragma warning disable xUnit1031 // FsCheck property tests require synchronous execution via GetAwaiter().GetResult()

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using FsCheck;
using FsCheck.Fluent;
using FsCheck.Xunit;
using Moq;
using Prism.Events;
using XP.Common.Logging.Interfaces;
using XP.Hardware.Detector.Abstractions;
using XplorePlane.Events;
using XplorePlane.Models;
using XplorePlane.Services;
using XplorePlane.Services.AppState;
using XplorePlane.Services.Cnc;
using XplorePlane.Services.InspectionResults;
using XplorePlane.Services.MainViewport;
using Xunit;

namespace XplorePlane.Tests.Services
{
    /// <summary>
    /// Property 9: 运行摘要字段完整性与一致性
    /// **Validates: Requirements 4.1, 4.2**
    /// </summary>
    public class SummaryCorrectnessPropertyTests
    {
        private static BitmapSource CreateFrozenBitmap()
        {
            var bitmap = BitmapSource.Create(1, 1, 96, 96, PixelFormats.Bgra32, null, new byte[4], 4);
            bitmap.Freeze();
            return bitmap;
        }

        private static (CncExecutionService Service, Mock<IImagePersistenceService> ImagePersistence)
            CreateServiceWithFailurePattern(List<bool> imageAcquisitionFailures)
        {
            var mockStore = new Mock<IInspectionResultStore>();
            var mockLogger = new Mock<ILoggerService>();
            var mockMainViewportService = new Mock<IMainViewportService>();
            var mockAppStateService = new Mock<IAppStateService>();
            var mockPipelineExecutionService = new Mock<IPipelineExecutionService>();
            var mockImageProcessingService = new Mock<IImageProcessingService>();
            var mockEventAggregator = new Mock<IEventAggregator>();
            var mockImagePersistenceService = new Mock<IImagePersistenceService>();

            mockLogger.Setup(l => l.ForModule<CncExecutionService>()).Returns(mockLogger.Object);
            mockEventAggregator
                .Setup(ea => ea.GetEvent<DetectorDisconnectedEvent>())
                .Returns(new DetectorDisconnectedEvent());
            mockStore.Setup(s => s.BeginRunAsync(
                    It.IsAny<InspectionRunRecord>(),
                    It.IsAny<InspectionAssetWriteRequest>()))
                .Returns(Task.CompletedTask);
            mockStore.Setup(s => s.AppendNodeResultAsync(
                    It.IsAny<InspectionNodeResult>(),
                    It.IsAny<IEnumerable<InspectionMetricResult>>(),
                    It.IsAny<PipelineExecutionSnapshot>(),
                    It.IsAny<IEnumerable<InspectionAssetWriteRequest>>()))
                .Returns(Task.CompletedTask);
            mockStore.Setup(s => s.CompleteRunAsync(
                    It.IsAny<Guid>(),
                    It.IsAny<bool?>(),
                    It.IsAny<DateTime?>()))
                .Returns(Task.CompletedTask);

            var frozenBitmap = CreateFrozenBitmap();
            int imageCallCount = 0;
            mockMainViewportService
                .SetupGet(m => m.LatestManualImage)
                .Returns(() =>
                {
                    int currentPos = imageCallCount++;
                    if (currentPos < imageAcquisitionFailures.Count && imageAcquisitionFailures[currentPos])
                        return null;
                    return frozenBitmap;
                });
            mockMainViewportService
                .SetupGet(m => m.CurrentDisplayImage)
                .Returns((ImageSource)null);
            mockAppStateService
                .SetupGet(a => a.LatestDetectorFrame)
                .Returns((ImageCapturedEventArgs)null);

            mockImagePersistenceService
                .Setup(s => s.SaveImageAsync(
                    It.IsAny<byte[]>(), It.IsAny<string>(),
                    It.IsAny<string>(), It.IsAny<CancellationToken>()))
                .ReturnsAsync(new ImageSaveResult(true, @"C:\test\image.bmp", 1024));
            mockImagePersistenceService
                .Setup(s => s.WriteSummaryAsync(
                    It.IsAny<BatchCaptureResult>(), It.IsAny<string>(),
                    It.IsAny<CancellationToken>()))
                .ReturnsAsync(true);

            var service = new CncExecutionService(
                mockStore.Object, mockLogger.Object,
                mockMainViewportService.Object, mockAppStateService.Object,
                mockPipelineExecutionService.Object, mockImageProcessingService.Object,
                mockEventAggregator.Object, mockImagePersistenceService.Object);

            return (service, mockImagePersistenceService);
        }

        private static Gen<List<SavePositionNode>> SavePositionNodesGen =>
            from count in Gen.Choose(1, 8)
            select Enumerable.Range(0, count)
                .Select(i => new SavePositionNode(
                    Guid.NewGuid(), i, $"Position_{i}",
                    MotionState.Default, SaveImage: true))
                .ToList();

        // Feature: cnc-multi-position-image-capture, Property 9: 运行摘要字段完整性与一致性
        // **Validates: Requirements 4.1, 4.2**
        [Property(MaxTest = 100)]
        public Property Summary_SucceededPlusFailedEqualsTotalPositions()
        {
            return Prop.ForAll(
                SavePositionNodesGen.ToArbitrary(),
                nodes =>
                {
                    var random = new Random(nodes.GetHashCode());
                    var failures = nodes.Select(_ => random.Next(2) == 0).ToList();
                    int totalPositions = nodes.Count;

                    var program = new CncProgram(
                        Guid.NewGuid(), "TestProgram",
                        DateTime.UtcNow, DateTime.UtcNow,
                        nodes.Cast<CncNode>().ToList().AsReadOnly());

                    var (service, mockImagePersistence) = CreateServiceWithFailurePattern(failures);

                    BatchCaptureResult capturedResult = null;
                    mockImagePersistence
                        .Setup(s => s.WriteSummaryAsync(
                            It.IsAny<BatchCaptureResult>(), It.IsAny<string>(),
                            It.IsAny<CancellationToken>()))
                        .Callback<BatchCaptureResult, string, CancellationToken>((r, _, _) => capturedResult = r)
                        .ReturnsAsync(true);

                    service.ExecuteAsync(program, null, CancellationToken.None)
                           .GetAwaiter().GetResult();

                    if (capturedResult == null) return false;

                    bool sumCorrect = capturedResult.SucceededPositions + capturedResult.FailedPositions
                                      == capturedResult.TotalPositions;
                    bool totalCorrect = capturedResult.TotalPositions == totalPositions;
                    bool statusCorrect = capturedResult.Status == "Completed";
                    bool positionsCountCorrect = capturedResult.Positions.Count == totalPositions;
                    bool aggregatesMatch = false;
                    if (positionsCountCorrect)
                    {
                        int succeeded = capturedResult.Positions.Count(p => p.Status == "Success");
                        int failed = capturedResult.Positions.Count(p => p.Status == "Failed");
                        aggregatesMatch = succeeded == capturedResult.SucceededPositions
                                       && failed == capturedResult.FailedPositions;
                    }

                    return sumCorrect && totalCorrect && statusCorrect
                        && positionsCountCorrect && aggregatesMatch;
                });
        }

        // Feature: cnc-multi-position-image-capture, Property 9: 运行摘要字段完整性与一致性
        // **Validates: Requirements 4.1, 4.2**
        [Property(MaxTest = 100)]
        public Property Summary_PositionStatusReflectsImageAcquisitionOutcome()
        {
            return Prop.ForAll(
                SavePositionNodesGen.ToArbitrary(),
                nodes =>
                {
                    var random = new Random(nodes.Sum(n => n.Index) * 17 + nodes.Count);
                    var failures = nodes.Select(_ => random.Next(2) == 0).ToList();
                    int totalPositions = nodes.Count;

                    var program = new CncProgram(
                        Guid.NewGuid(), "TestProgram",
                        DateTime.UtcNow, DateTime.UtcNow,
                        nodes.Cast<CncNode>().ToList().AsReadOnly());

                    var (service, mockImagePersistence) = CreateServiceWithFailurePattern(failures);

                    BatchCaptureResult capturedResult = null;
                    mockImagePersistence
                        .Setup(s => s.WriteSummaryAsync(
                            It.IsAny<BatchCaptureResult>(), It.IsAny<string>(),
                            It.IsAny<CancellationToken>()))
                        .Callback<BatchCaptureResult, string, CancellationToken>((r, _, _) => capturedResult = r)
                        .ReturnsAsync(true);

                    service.ExecuteAsync(program, null, CancellationToken.None)
                           .GetAwaiter().GetResult();

                    if (capturedResult == null || capturedResult.Positions.Count != totalPositions)
                        return false;

                    for (int i = 0; i < totalPositions; i++)
                    {
                        var posResult = capturedResult.Positions[i];
                        bool imageAcquired = !failures[i];
                        string expectedStatus = imageAcquired ? "Success" : "Failed";
                        if (posResult.Status != expectedStatus) return false;
                    }

                    return true;
                });
        }
    }
}