name: Pre-release and Changelog

on:
  workflow_dispatch:
    inputs:
      version_type:
        description: 'Version bump type'
        required: true
        default: 'patch'
        type: choice
        options:
        - patch
        - minor
        - major
        - build
      prerelease:
        description: 'Create as pre-release'
        required: true
        default: true
        type: boolean

jobs:
  prerelease:
    if: github.ref == 'refs/heads/main'
    runs-on: windows-latest
    permissions:
      contents: write
    
    steps:
    - name: Checkout code
      uses: actions/checkout@v4.2.2
      with:
        fetch-depth: 0  # 获取所有历史记录用于生成changelog
        
    - name: Setup MSbuild
      uses: microsoft/setup-msbuild@v2
      
    - name: Setup NuGet
      uses: NuGet/setup-nuget@v2.0.1
      
    - name: Restore NuGet Packages
      run: nuget restore "Ink Canvas.sln"
      
    - name: Get current version from Git tag
      id: get_version
      run: |
        # 获取最新的tag
        $latestTag = git describe --tags --abbrev=0 2>$null
        if ($latestTag) {
          # 移除v前缀（如果有的话）
          $version = $latestTag -replace "^v", ""
          echo "Found latest tag: $latestTag"
        } else {
          # 如果没有tag，使用默认版本
          $version = "1.0.0.0"
          echo "No tags found, using default version"
        }
        echo "current_version=$version" >> $env:GITHUB_OUTPUT
        echo "Current version: $version"
        
    - name: Calculate new version
      id: calc_version
      run: |
        $currentVersion = "${{ steps.get_version.outputs.current_version }}"
        $versionParts = $currentVersion.Split('.')
        
        # 确保版本号格式正确（支持4部分）
        if ($versionParts.Length -ge 3) {
          $major = [int]$versionParts[0]
          $minor = [int]$versionParts[1]
          $patch = [int]$versionParts[2]
          $build = [int]$versionParts[3]
        } else {
          # 如果版本号格式不正确，使用默认值
          $major = 1
          $minor = 0
          $patch = 0
          $build = 0
        }
        
        $versionType = "${{ github.event.inputs.version_type }}"
        
        switch ($versionType) {
          "major" { 
            $major++
            $minor = 0
            $patch = 0
            $build = 0
          }
          "minor" { 
            $minor++
            $patch = 0
            $build = 0
          }
          "patch" { 
            $patch++
            $build = 0
          }
          "build" { 
            $build++
          }
        }
        
        # 生成新版本号（4位格式，如1.7.18.0）
        $newVersion = "$major.$minor.$patch.$build"
        echo "new_version=$newVersion" >> $env:GITHUB_OUTPUT
        echo "New version: $newVersion"
        
    - name: Generate Changelog
      id: changelog
      run: |
        # 获取上次tag到现在的所有commit
        $lastTag = git describe --tags --abbrev=0 2>$null
        if ($lastTag) {
          $commits = git log --pretty=format:"%h|%s|%an|%ad" --date=short "$lastTag..HEAD"
        } else {
          $commits = git log --pretty=format:"%h|%s|%an|%ad" --date=short
        }
        
        # 初始化分类数组
        $fixes = @()
        $improvements = @()
        $additions = @()
        $deletions = @()
        $versionChanges = @()
        $others = @()
        
        # 解析每个commit
        foreach ($commit in $commits) {
          if ($commit -match "^([^|]+)\|([^|]+)\|([^|]+)\|([^|]+)$") {
            $hash = $matches[1]
            $message = $matches[2]
            $author = $matches[3]
            $date = $matches[4]
            
            $commitInfo = @{
              Hash = $hash
              Message = $message
              Author = $author
              Date = $date
            }
            
            # 根据commit消息分类
            if ($message -match "^(fix|修复)") {
              $fixes += $commitInfo
            } elseif ($message -match "^(improve|改进|优化)") {
              $improvements += $commitInfo
            } elseif ($message -match "^(add|新增|添加)") {
              $additions += $commitInfo
            } elseif ($message -match "^(delete|删除|移除)") {
              $deletions += $commitInfo
            } elseif ($message -match "(版本|version|更新版本号)") {
              $versionChanges += $commitInfo
            } else {
              $others += $commitInfo
            }
          }
        }
        
        # 生成changelog内容
        $version = "${{ steps.calc_version.outputs.new_version }}"
        $changelog = "# ICC CE $version 更新日志`n`n## 修复 (Fixes)"
        
        if ($fixes.Count -gt 0) {
          foreach ($fix in $fixes) {
            $changelog += "`n- $($fix.Message) ($($fix.Author), $($fix.Date))"
          }
        } else {
          $changelog += "`n- 无"
        }
        
        $changelog += "`n`n## 改进 (Improvements)"
        
        if ($improvements.Count -gt 0) {
          foreach ($improvement in $improvements) {
            $changelog += "`n- $($improvement.Message) ($($improvement.Author), $($improvement.Date))"
          }
        } else {
          $changelog += "`n- 无"
        }
        
        $changelog += "`n`n## 新增功能 (New Features)"
        
        if ($additions.Count -gt 0) {
          foreach ($addition in $additions) {
            $changelog += "`n- $($addition.Message) ($($addition.Author), $($addition.Date))"
          }
        } else {
          $changelog += "`n- 无"
        }
        
        $changelog += "`n`n## 删除功能 (Removed Features)"
        
        if ($deletions.Count -gt 0) {
          foreach ($deletion in $deletions) {
            $changelog += "`n- $($deletion.Message) ($($deletion.Author), $($deletion.Date))"
          }
        } else {
          $changelog += "`n- 无"
        }
        
        $changelog += "`n`n## 版本更新 (Version Updates)"
        
        if ($versionChanges.Count -gt 0) {
          foreach ($versionChange in $versionChanges) {
            $changelog += "`n- $($versionChange.Message) ($($versionChange.Author), $($versionChange.Date))"
          }
        } else {
          $changelog += "`n- 无"
        }
        
        $changelog += "`n`n## 其他更改 (Other Changes)"
        
        if ($others.Count -gt 0) {
          foreach ($other in $others) {
            $changelog += "`n- $($other.Message) ($($other.Author), $($other.Date))"
          }
        } else {
          $changelog += "`n- 无"
        }
        
        $changelog += "`n`n---`n*此更新日志由GitHub Actions自动生成*"
        
        # 保存changelog到文件
        $changelog | Out-File -FilePath "CHANGELOG_${{ steps.calc_version.outputs.new_version }}.md" -Encoding UTF8
        
        # 输出changelog内容到步骤输出
        echo "changelog<<EOF" >> $env:GITHUB_OUTPUT
        echo $changelog >> $env:GITHUB_OUTPUT
        echo "EOF" >> $env:GITHUB_OUTPUT
        
        echo "Changelog generated successfully"
        
    - name: Display version info
      run: |
        echo "Current version: ${{ steps.get_version.outputs.current_version }}"
        echo "New version: ${{ steps.calc_version.outputs.new_version }}"
        echo "Note: Version will not be automatically updated in repository files"
        
    - name: Build the Solution
      run: |
        msbuild -t:restore /p:GitFlow="Github Action"
        msbuild /p:platform="AnyCPU" /p:configuration="Release" /p:GitFlow="Github Action" "Ink Canvas/InkCanvasForClass.csproj"
        
    - name: Create Release Archive
      run: |
        $version = "${{ steps.calc_version.outputs.new_version }}"
        $archiveName = "InkCanvasForClass.CE.$version.zip"
        
        # 创建发布目录
        New-Item -ItemType Directory -Path "release" -Force
        
        # 复制发布文件
        Copy-Item "Ink Canvas\bin\Release\net472\*" "release\" -Recurse -Force
        
        # 创建压缩包
        Compress-Archive -Path "release\*" -DestinationPath $archiveName -Force
        
        echo "archive_name=$archiveName" >> $env:GITHUB_OUTPUT
        
    - name: Upload Release Assets
      uses: actions/upload-artifact@v4.5.0
      with:
        name: release-files-${{ steps.calc_version.outputs.new_version }}
        path: |
          InkCanvasForClass.CE.${{ steps.calc_version.outputs.new_version }}.zip
          CHANGELOG_${{ steps.calc_version.outputs.new_version }}.md
          
    - name: Prepare Release Info
      run: |
        $version = "${{ steps.calc_version.outputs.new_version }}"
        echo "Preparing release for version: $version"
        
    - name: Create GitHub Release
      uses: softprops/action-gh-release@v1
      with:
        tag_name: ${{ steps.calc_version.outputs.new_version }}
        name: ICC CE ${{ steps.calc_version.outputs.new_version }}
        body: |
          ${{ steps.changelog.outputs.changelog }}
        draft: false
        prerelease: ${{ github.event.inputs.prerelease }}
        files: |
          InkCanvasForClass.CE.${{ steps.calc_version.outputs.new_version }}.zip
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        
    - name: Generate UpdateLog preview
      run: |
        $version = "${{ steps.calc_version.outputs.new_version }}"
        $changelogFile = "CHANGELOG_$version.md"
        
        # 读取生成的changelog
        $changelogContent = Get-Content $changelogFile -Raw
        
        # 生成预览内容
        $previewContent = "ICC CE $version 更新日志`n" + $changelogContent
        
        echo "UpdateLog preview generated (not written to file):"
        echo $previewContent
        
    - name: Display Summary
      run: |
        echo "=== Release Summary ==="
        echo "Version: ${{ steps.calc_version.outputs.new_version }}"
        echo "Pre-release: ${{ github.event.inputs.prerelease }}"
        echo "Changelog: Generated and attached to release"
        echo "Archive: ICC_CE_${{ steps.calc_version.outputs.new_version }}.zip"
        echo ""
        echo "Note: No repository files were modified"
        echo "You can manually update version numbers and changelog as needed"