using AxiOmron.PcbCheck.Models;
using AxiOmron.PcbCheck.Options;
using AxiOmron.PcbCheck.Services.Implementations;
using AxiOmron.PcbCheck.Services.Interfaces;

namespace AxiOmron.PcbCheck.Tests;

/// <summary>
/// 验证流程后台服务的 SFTP 启动探活行为。
/// </summary>
public sealed class WorkflowHostedServiceTests
{
    /// <summary>
    /// 启动探活失败时，不应抛出异常，且应写入运行态状态。
    /// </summary>
    /// <returns>异步测试任务。</returns>
    [Fact]
    public async Task ProbeSftpOnStartupAsync_ShouldUpdateSnapshot_WhenConnectionFails()
    {
        var stateStore = new AppStateStore();
        var service = new WorkflowHostedService(
            new FakePlcService(),
            new FakeScannerService(),
            new FakeSftpLookupService
            {
                TestOutcome = new SftpConnectionTestOutcome
                {
                    IsSuccess = false,
                    IsSystemError = true,
                    StatusMessage = "启动探活失败"
                }
            },
            new FakeAndonService(),
            stateStore,
            new AppConfig(),
            new FakeAppLogger<WorkflowHostedService>());

        await service.ProbeSftpOnStartupAsync(CancellationToken.None);

        Assert.Equal("异常", stateStore.GetSnapshot().SftpStatus);
    }

    private sealed class FakePlcService : IPlcService
    {
        public Task ForceReconnectAsync(CancellationToken cancellationToken) => Task.CompletedTask;
        public Task<PlcSignalSnapshot> ReadSignalsAsync(CancellationToken cancellationToken) => Task.FromResult(new PlcSignalSnapshot());
        public Task WriteStateAsync(PlcProcessState state, CancellationToken cancellationToken) => Task.CompletedTask;
    }

    private sealed class FakeScannerService : IScannerService
    {
        public Task ForceReconnectAsync(CancellationToken cancellationToken) => Task.CompletedTask;
        public Task<bool> TestConnectionAsync(CancellationToken cancellationToken) => Task.FromResult(true);
        public Task<ScanOperationResult> TriggerScanAsync(CancellationToken cancellationToken) => Task.FromResult(new ScanOperationResult());
    }

    private sealed class FakeSftpLookupService : ISftpLookupService
    {
        public SftpConnectionTestOutcome TestOutcome { get; set; } = new();

        public Task<SftpCheckOutcome> CheckFileAsync(string barcode, CancellationToken cancellationToken) => Task.FromResult(new SftpCheckOutcome());

        public Task<SftpConnectionTestOutcome> TestConnectionAsync(SftpOptions? options, CancellationToken cancellationToken)
        {
            return Task.FromResult(TestOutcome);
        }
    }

    private sealed class FakeAndonService : IAndonService
    {
        public Task<AndonOperationResult> RaiseAlarmAsync(AndonAlarmRequest request, CancellationToken cancellationToken)
            => Task.FromResult(new AndonOperationResult());

        public Task<AndonOperationResult> TestAsync(CancellationToken cancellationToken)
            => Task.FromResult(new AndonOperationResult());
    }

    private sealed class FakeAppLogger<TCategoryName> : IAppLogger<TCategoryName>
    {
        public void LogError(string message, bool showInUi = false, params object?[] args) { }
        public void LogError(Exception exception, string message, bool showInUi = false, params object?[] args) { }
        public void LogInformation(string message, bool showInUi = false, params object?[] args) { }
        public void LogWarning(string message, bool showInUi = false, params object?[] args) { }
        public void LogWarning(Exception exception, string message, bool showInUi = false, params object?[] args) { }
    }
}