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

namespace AxiOmron.PcbCheck.Tests;

/// <summary>
/// 验证本地磁盘文件校验提供程序的目录检查与文件匹配行为。
/// </summary>
public sealed class LocalFileCheckProviderTests : IDisposable
{
    private readonly string _rootPath;

    /// <summary>
    /// 初始化临时测试目录。
    /// </summary>
    public LocalFileCheckProviderTests()
    {
        _rootPath = Path.Combine(Path.GetTempPath(), "AxiOmronLocalFileCheckTests", Guid.NewGuid().ToString("N"));
        Directory.CreateDirectory(_rootPath);
    }

    /// <summary>
    /// 清理临时测试目录。
    /// </summary>
    public void Dispose()
    {
        if (Directory.Exists(_rootPath))
        {
            Directory.Delete(_rootPath, recursive: true);
        }
    }

    /// <summary>
    /// 本地根目录为空时，应返回配置异常。
    /// </summary>
    /// <returns>异步测试任务。</returns>
    [Fact]
    public async Task TestConnectionAsync_ShouldReturnConfigurationError_WhenRootPathIsEmpty()
    {
        var provider = CreateProvider();
        var config = new AppConfig
        {
            FileCheck = new FileCheckOptions
            {
                Local = new LocalFileCheckOptions { RootPath = string.Empty }
            }
        };

        FileCheckTestOutcome outcome = await provider.TestConnectionAsync(config, CancellationToken.None);

        Assert.True(outcome.IsConfigurationError);
        Assert.Contains("本地文件校验目录未配置", outcome.StatusMessage);
    }

    /// <summary>
    /// 本地根目录不存在时，应返回配置异常。
    /// </summary>
    /// <returns>异步测试任务。</returns>
    [Fact]
    public async Task TestConnectionAsync_ShouldReturnConfigurationError_WhenRootPathDoesNotExist()
    {
        var provider = CreateProvider();
        var config = CreateConfig(Path.Combine(_rootPath, "missing"));

        FileCheckTestOutcome outcome = await provider.TestConnectionAsync(config, CancellationToken.None);

        Assert.True(outcome.IsConfigurationError);
        Assert.Contains("本地文件校验目录不存在", outcome.StatusMessage);
    }

    /// <summary>
    /// 文件名精确匹配模板时，应返回命中文件路径。
    /// </summary>
    /// <returns>异步测试任务。</returns>
    [Fact]
    public async Task CheckFileAsync_ShouldMatchExactFileName()
    {
        string filePath = Path.Combine(_rootPath, "PCB-001.txt");
        await File.WriteAllTextAsync(filePath, "ok");
        var provider = CreateProvider();

        FileCheckOutcome outcome = await provider.CheckFileAsync("PCB-001", CreateConfig(_rootPath), CancellationToken.None);

        Assert.True(outcome.Exists);
        Assert.Equal(filePath, outcome.MatchedFilePath);
    }

    /// <summary>
    /// 文件名只包含条码但不等于模板生成文件名时，不应命中。
    /// </summary>
    /// <returns>异步测试任务。</returns>
    [Fact]
    public async Task CheckFileAsync_ShouldNotMatchFileNameContainingBarcodeOnly()
    {
        string filePath = Path.Combine(_rootPath, "abcd10.txt");
        await File.WriteAllTextAsync(filePath, "ok");
        var provider = CreateProvider();

        FileCheckOutcome outcome = await provider.CheckFileAsync("abcd1", CreateConfig(_rootPath), CancellationToken.None);

        Assert.False(outcome.Exists);
        Assert.Empty(outcome.MatchedFilePath);
    }

    /// <summary>
    /// 文件名模板包含通配符时，应按通配符匹配。
    /// </summary>
    /// <returns>异步测试任务。</returns>
    [Fact]
    public async Task CheckFileAsync_ShouldMatchWildcardPattern()
    {
        string filePath = Path.Combine(_rootPath, "PCB-003_result.txt");
        await File.WriteAllTextAsync(filePath, "ok");
        var provider = CreateProvider();
        AppConfig config = CreateConfig(_rootPath);
        config.FileCheck.FileNamePattern = "${barcode}_*.txt";

        FileCheckOutcome outcome = await provider.CheckFileAsync("PCB-003", config, CancellationToken.None);

        Assert.True(outcome.Exists);
        Assert.Equal(filePath, outcome.MatchedFilePath);
    }

    /// <summary>
    /// 创建本地文件校验提供程序。
    /// </summary>
    /// <returns>本地文件校验提供程序。</returns>
    private static LocalFileCheckProvider CreateProvider()
    {
        return new LocalFileCheckProvider(new FakeAppLogger<LocalFileCheckProvider>());
    }

    /// <summary>
    /// 创建本地文件校验测试配置。
    /// </summary>
    /// <param name="rootPath">本地根目录。</param>
    /// <returns>测试配置。</returns>
    private static AppConfig CreateConfig(string rootPath)
    {
        return new AppConfig
        {
            FileCheck = new FileCheckOptions
            {
                Provider = FileCheckProvider.Local,
                FileNamePattern = "${barcode}.txt",
                Local = new LocalFileCheckOptions
                {
                    RootPath = rootPath
                }
            }
        };
    }

    /// <summary>
    /// 提供本地文件校验测试用的空日志实现。
    /// </summary>
    /// <typeparam name="TCategoryName">日志分类类型。</typeparam>
    private sealed class FakeAppLogger<TCategoryName> : IAppLogger<TCategoryName>
    {
        public void LogError(string message, bool showInUi = true, params object?[] args)
        {
        }

        public void LogError(Exception exception, string message, bool showInUi = true, params object?[] args)
        {
        }

        public void LogInformation(string message, bool showInUi = true, params object?[] args)
        {
        }

        public void LogWarning(string message, bool showInUi = true, params object?[] args)
        {
        }

        public void LogWarning(Exception exception, string message, bool showInUi = true, params object?[] args)
        {
        }
    }
}