Apq.ChangeBubbling/Directory.Build.props

<Project>
  <PropertyGroup>
    <!-- 支持 .NET 6 及以上所有版本 -->
    <TargetFrameworks>net6.0;net7.0;net8.0;net9.0</TargetFrameworks>

    <!-- 公共设置 -->
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
    <LangVersion>latest</LangVersion>

    <!-- 生成文档 -->
    <GenerateDocumentationFile>true</GenerateDocumentationFile>
    <NoWarn>$(NoWarn);CS1591</NoWarn>

    <!-- 抑制 XML 注释警告 -->
    <NoWarn>$(NoWarn);CS1591;CS1570;CS1574</NoWarn>

    <!-- 抑制 TFM 不支持警告 -->
    <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
  </PropertyGroup>

  <!-- Apq.ChangeBubbling 特定的 NuGet 包元数据 -->
  <PropertyGroup>
    <Description>变更冒泡事件库，支持 Rx 响应式流、弱引用消息和可插拔调度环境</Description>
    <PackageTags>change-bubbling;reactive;rx;mvvm;messaging;event;observable</PackageTags>
    <PackageReadmeFile>README.md</PackageReadmeFile>
  </PropertyGroup>

  <!-- 从 versions 目录自动获取版本号（纯 MSBuild，跨平台兼容） -->
  <PropertyGroup>
    <VersionsDir>$([System.IO.Path]::Combine($(MSBuildThisFileDirectory), 'versions'))</VersionsDir>
  </PropertyGroup>

  <!-- 内联任务：获取最高版本号及其文件路径 -->
  <UsingTask TaskName="GetMaxVersion" TaskFactory="RoslynCodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)/Microsoft.Build.Tasks.Core.dll">
    <ParameterGroup>
      <VersionFiles ParameterType="Microsoft.Build.Framework.ITaskItem[]" Required="true" />
      <MaxVersion ParameterType="System.String" Output="true" />
      <MaxVersionCore ParameterType="System.String" Output="true" />
      <MaxVersionRevision ParameterType="System.String" Output="true" />
      <MaxVersionFile ParameterType="System.String" Output="true" />
    </ParameterGroup>
    <Task>
      <Using Namespace="System.Text.RegularExpressions" />
      <Code Type="Fragment" Language="cs"><![CDATA[
        MaxVersion = "1.0.0";
        MaxVersionCore = "1.0.0";
        MaxVersionRevision = "0";
        MaxVersionFile = "";
        Version maxVer = new Version(0, 0, 0);
        string maxPrerelease = "";
        if (VersionFiles != null) {
            foreach (var file in VersionFiles) {
                // 匹配完整版本号，包括预发布标签（如 v1.0.2-beta1）
                var match = Regex.Match(file.GetMetadata("Filename"), @"^v(\d+\.\d+\.\d+)(-[\w.]+)?");
                if (match.Success) {
                    var coreVersion = match.Groups[1].Value;
                    var prerelease = match.Groups[2].Success ? match.Groups[2].Value : "";
                    var ver = new Version(coreVersion);
                    // 比较：先比核心版本，再比预发布标签（空字符串 > 预发布标签，即正式版 > beta）
                    bool isNewer = ver > maxVer ||
                        (ver == maxVer && string.Compare(prerelease, maxPrerelease, StringComparison.Ordinal) > 0);
                    if (isNewer) {
                        maxVer = ver;
                        maxPrerelease = prerelease;
                        MaxVersionCore = coreVersion;
                        MaxVersion = coreVersion + prerelease;
                        MaxVersionFile = file.GetMetadata("FullPath");
                        // 从预发布标签提取数字作为修订号（如 -beta2 -> 2, -rc.3 -> 3）
                        var revMatch = Regex.Match(prerelease, @"(\d+)$");
                        MaxVersionRevision = revMatch.Success ? revMatch.Groups[1].Value : "0";
                    }
                }
            }
        }
      ]]></Code>
    </Task>
  </UsingTask>

  <!-- 内联任务：检查文件内容长度 -->
  <UsingTask TaskName="CheckFileLength" TaskFactory="RoslynCodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)/Microsoft.Build.Tasks.Core.dll">
    <ParameterGroup>
      <FilePath ParameterType="System.String" Required="true" />
      <MinLength ParameterType="System.Int32" Required="true" />
      <IsLongEnough ParameterType="System.Boolean" Output="true" />
    </ParameterGroup>
    <Task>
      <Using Namespace="System.IO" />
      <Code Type="Fragment" Language="cs"><![CDATA[
        IsLongEnough = false;
        if (!string.IsNullOrEmpty(FilePath) && File.Exists(FilePath)) {
            var content = File.ReadAllText(FilePath);
            IsLongEnough = content.Length >= MinLength;
        }
      ]]></Code>
    </Task>
  </UsingTask>

  <!-- 扫描版本文件并提取最高版本 -->
  <Target Name="DetectVersionFromFiles" BeforeTargets="GetAssemblyVersion;GenerateNuspec;Pack;Build">
    <ItemGroup>
      <VersionFiles Include="$(VersionsDir)/v*.md" />
    </ItemGroup>

    <GetMaxVersion VersionFiles="@(VersionFiles)">
      <Output TaskParameter="MaxVersion" PropertyName="DetectedVersion" />
      <Output TaskParameter="MaxVersionCore" PropertyName="DetectedVersionCore" />
      <Output TaskParameter="MaxVersionRevision" PropertyName="DetectedVersionRevision" />
      <Output TaskParameter="MaxVersionFile" PropertyName="DetectedVersionFile" />
    </GetMaxVersion>

    <PropertyGroup>
      <!-- Version/PackageVersion 使用完整版本（含预发布标签） -->
      <Version>$(DetectedVersion)</Version>
      <PackageVersion>$(DetectedVersion)</PackageVersion>
      <!-- AssemblyVersion/FileVersion 使用数字版本，第四位为预发布序号 -->
      <AssemblyVersion>$(DetectedVersionCore).$(DetectedVersionRevision)</AssemblyVersion>
      <FileVersion>$(DetectedVersionCore).$(DetectedVersionRevision)</FileVersion>
    </PropertyGroup>

    <Message Text="检测到版本: $(DetectedVersion)" Importance="high" />
  </Target>

  <!-- 动态选择 README 文件：优先使用版本文件，内容不足5字符时回退到项目 README -->
  <Target Name="SelectReadmeFile" BeforeTargets="_GetPackageFiles" DependsOnTargets="DetectVersionFromFiles">
    <!-- 检查版本文件内容长度 -->
    <CheckFileLength FilePath="$(DetectedVersionFile)" MinLength="5">
      <Output TaskParameter="IsLongEnough" PropertyName="UseVersionFileAsReadme" />
    </CheckFileLength>

    <!-- 如果版本文件内容足够长，使用版本文件 -->
    <ItemGroup Condition="'$(UseVersionFileAsReadme)' == 'true'">
      <_PackageFiles Include="$(DetectedVersionFile)">
        <PackagePath>README.md</PackagePath>
        <BuildAction>None</BuildAction>
      </_PackageFiles>
    </ItemGroup>

    <!-- 否则使用项目目录下的 README.md -->
    <ItemGroup Condition="'$(UseVersionFileAsReadme)' != 'true'">
      <_PackageFiles Include="README.md">
        <PackagePath>README.md</PackagePath>
        <BuildAction>None</BuildAction>
      </_PackageFiles>
    </ItemGroup>

    <Message Text="README 来源: $(DetectedVersionFile) (版本文件)" Importance="high" Condition="'$(UseVersionFileAsReadme)' == 'true'" />
    <Message Text="README 来源: README.md (项目目录)" Importance="high" Condition="'$(UseVersionFileAsReadme)' != 'true'" />
  </Target>

  <!-- NuGet 包公共元数据 -->
  <PropertyGroup>
    <Authors>Apq</Authors>
    <Company>Apq</Company>
    <Copyright>Copyright © Apq $([System.DateTime]::Now.Year)</Copyright>
    <PackageLicenseExpression>MIT</PackageLicenseExpression>

    <!-- 启用包生成 -->
    <IsPackable>true</IsPackable>

    <!-- 源码链接支持 -->
    <PublishRepositoryUrl>true</PublishRepositoryUrl>
    <EmbedUntrackedSources>true</EmbedUntrackedSources>
    <IncludeSymbols>true</IncludeSymbols>
    <SymbolPackageFormat>snupkg</SymbolPackageFormat>
  </PropertyGroup>
</Project>