# Vault-Para 结构扫描脚本
# 用法: 在 my-vault 目录中运行此脚本
# 输出: 在当前目录生成 vault-para-scan-report.md

$vaultParaPath = "D:\tmp\vault\vault-para"
$reportPath = ".\vault-para-scan-report.md"

Write-Host "正在扫描 vault-para 结构..." -ForegroundColor Green
Write-Host "目标路径: $vaultParaPath" -ForegroundColor Cyan

# 检查路径是否存在
if (-not (Test-Path $vaultParaPath)) {
    Write-Host "❌ 错误: 找不到 vault-para 目录: $vaultParaPath" -ForegroundColor Red
    exit 1
}

Push-Location $vaultParaPath

# 初始化报告
$report = @"
# Vault-Para 扫描报告
扫描时间: $(Get-Date -Format "yyyy-MM-dd HH:mm:ss")
扫描路径: $vaultParaPath

---

## 📊 统计概览

"@

# 统计信息
$mdFiles = Get-ChildItem -Recurse -Filter "*.md" -File
$allFiles = Get-ChildItem -Recurse -File
$directories = Get-ChildItem -Recurse -Directory

$report += @"
- **Markdown 文件**: $($mdFiles.Count)
- **总文件数**: $($allFiles.Count)
- **目录数**: $($directories.Count)

"@

# 文件类型统计
$report += "`n## 📁 文件类型分布`n`n"
$fileTypes = $allFiles | Group-Object Extension | Sort-Object Count -Descending | Select-Object -First 10
$report += "| 扩展名 | 数量 |`n"
$report += "|--------|------|`n"
foreach ($type in $fileTypes) {
    $ext = if ($type.Name) { $type.Name } else { "(无扩展名)" }
    $report += "| $ext | $($type.Count) |`n"
}

# 目录结构（完整树形）
$report += "`n## 🌳 完整目录结构`n`n"
$report += "``````text`n"

function Get-TreeStructure {
    param($Path, $Prefix = "", $IsLast = $true)

    $items = Get-ChildItem -Path $Path | Sort-Object { $_.PSIsContainer }, Name
    $total = $items.Count

    for ($i = 0; $i -lt $total; $i++) {
        $item = $items[$i]
        $isLastItem = ($i -eq ($total - 1))

        $connector = if ($isLastItem) { "└── " } else { "├── " }
        $itemName = if ($item.PSIsContainer) { "$($item.Name)/" } else { $item.Name }

        "$Prefix$connector$itemName"

        if ($item.PSIsContainer) {
            $newPrefix = if ($isLastItem) { "$Prefix    " } else { "$Prefix│   " }
            Get-TreeStructure -Path $item.FullName -Prefix $newPrefix -IsLast $isLastItem
        }
    }
}

Get-TreeStructure -Path $vaultParaPath | Out-String | ForEach-Object { $report += $_ }
$report += "``````n`n"

# 顶层内容详情
$report += "`n## 📂 顶层目录详情`n`n"
$topLevel = Get-ChildItem | Sort-Object { $_.PSIsContainer }, Name

foreach ($item in $topLevel) {
    if ($item.PSIsContainer) {
        $filesInDir = (Get-ChildItem -Path $item.FullName -Recurse -File).Count
        $mdInDir = (Get-ChildItem -Path $item.FullName -Recurse -Filter "*.md" -File).Count
        $report += "### 📁 $($item.Name)/`n"
        $report += "- 总文件: $filesInDir`n"
        $report += "- Markdown: $mdInDir`n"

        # 列出子目录
        $subDirs = Get-ChildItem -Path $item.FullName -Directory
        if ($subDirs.Count -gt 0) {
            $report += "- 子目录: " + ($subDirs.Name -join ", ") + "`n"
        }
        $report += "`n"
    }
}

# Markdown 文件列表（按目录组织）
$report += "`n## 📝 Markdown 文件清单`n`n"

$mdByDir = $mdFiles | Group-Object { $_.DirectoryName } | Sort-Object Name

foreach ($group in $mdByDir) {
    $relPath = $group.Name.Replace($vaultParaPath, ".").Replace("\", "/")
    $report += "### $relPath`n"
    foreach ($file in ($group.Group | Sort-Object Name)) {
        $size = [math]::Round($file.Length / 1KB, 2)
        $report += "- $($file.Name) ($size KB)`n"
    }
    $report += "`n"
}

# 检查是否有 frontmatter
$report += "`n## 🏷️ Frontmatter 采样（前10个文件）`n`n"

$sampleFiles = $mdFiles | Select-Object -First 10

foreach ($file in $sampleFiles) {
    $content = Get-Content $file.FullName -Raw -Encoding UTF8
    if ($content -match '^---\s*\n(.*?)\n---') {
        $frontmatter = $matches[1]
        $report += "**$($file.Name)**:`n``````yaml`n$frontmatter`n```````n`n"
    }
}

# 检查内部链接模式
$report += "`n## 🔗 链接模式采样`n`n"

$linkPatterns = @{
    "WikiLinks" = 0
    "MarkdownLinks" = 0
    "Tags" = 0
}

foreach ($file in ($mdFiles | Select-Object -First 50)) {
    $content = Get-Content $file.FullName -Raw -Encoding UTF8
    if ($content -match '\[\[.*?\]\]') { $linkPatterns["WikiLinks"]++ }
    if ($content -match '\[.*?\]\(.*?\)') { $linkPatterns["MarkdownLinks"]++ }
    if ($content -match '#\w+') { $linkPatterns["Tags"]++ }
}

$report += "在前50个文件中发现:`n"
$report += "- WikiLinks `[[]]`: $($linkPatterns["WikiLinks"]) 个文件`n"
$report += "- Markdown Links `[]()`: $($linkPatterns["MarkdownLinks"]) 个文件`n"
$report += "- Tags `#tag`: $($linkPatterns["Tags"]) 个文件`n"

Pop-Location

# 保存报告到 my-vault
$fullReportPath = Join-Path (Get-Location) $reportPath
$report | Out-File -FilePath $fullReportPath -Encoding UTF8

Write-Host "`n✅ 扫描完成！" -ForegroundColor Green
Write-Host "报告已保存到: $fullReportPath" -ForegroundColor Cyan
Write-Host "`n下一步: 让 Claude 分析报告并制定迁移计划。" -ForegroundColor Yellow