# ============================================
# 配置验证脚本 (PowerShell)
# ============================================
# 功能：
#   - 验证环境变量配置
#   - 验证端口可用性
#   - 验证依赖服务连接
# 使用：
#   .\scripts\validate-config.ps1
# ============================================

param(
    [switch]$Verbose
)

$ErrorActionPreference = "Continue"
$script:HasErrors = $false
$script:HasWarnings = $false

function Write-Check {
    param([string]$Name, [string]$Status, [string]$Message)
    
    $icon = switch ($Status) {
        "OK" { "✅" }
        "WARN" { "⚠️" }
        "ERROR" { "❌" }
        default { "ℹ️" }
    }
    
    Write-Host "  $icon $Name : $Message"
    
    if ($Status -eq "ERROR") { $script:HasErrors = $true }
    if ($Status -eq "WARN") { $script:HasWarnings = $true }
}

Write-Host ""
Write-Host "========================================"
Write-Host "  配置验证脚本"
Write-Host "========================================"
Write-Host ""

# 1. 检查环境变量文件
Write-Host "📋 检查环境变量..."

if (Test-Path ".env") {
    Write-Check "环境变量文件" "OK" ".env 文件存在"
    
    # 读取 .env 文件
    $envContent = Get-Content ".env" -Raw
    
    # 检查必需的环境变量
    $requiredVars = @(
        @{ Name = "DATABASE_URL"; Pattern = "DATABASE_URL=" }
    )
    
    # JWT_SECRET 或 NEXTAUTH_SECRET 至少需要一个
    if ($envContent -match "JWT_SECRET=" -or $envContent -match "NEXTAUTH_SECRET=") {
        Write-Check "JWT/Auth Secret" "OK" "已配置"
    } else {
        Write-Check "JWT/Auth Secret" "ERROR" "未配置 (需要 JWT_SECRET 或 NEXTAUTH_SECRET)"
    }
    
    foreach ($var in $requiredVars) {
        if ($envContent -match $var.Pattern) {
            Write-Check $var.Name "OK" "已配置"
        } else {
            Write-Check $var.Name "ERROR" "未配置"
        }
    }
    
    # 检查可选但推荐的环境变量
    $optionalVars = @(
        @{ Name = "S3_ENDPOINT"; Pattern = "S3_ENDPOINT=" },
        @{ Name = "S3_ACCESS_KEY"; Pattern = "S3_ACCESS_KEY=" },
        @{ Name = "S3_SECRET_KEY"; Pattern = "S3_SECRET_KEY=" }
    )
    
    foreach ($var in $optionalVars) {
        if ($envContent -match $var.Pattern) {
            Write-Check $var.Name "OK" "已配置"
        } else {
            Write-Check $var.Name "WARN" "未配置（可选）"
        }
    }
} else {
    Write-Check "环境变量文件" "ERROR" ".env 文件不存在"
}

Write-Host ""

# 2. 检查端口可用性
Write-Host "🔌 检查端口可用性..."

$ports = @(
    @{ Port = 3000; Name = "Next.js 应用" },
    @{ Port = 5432; Name = "PostgreSQL" },
    @{ Port = 9000; Name = "MinIO API" },
    @{ Port = 9001; Name = "MinIO Console" }
)

foreach ($p in $ports) {
    $connection = Get-NetTCPConnection -LocalPort $p.Port -ErrorAction SilentlyContinue
    if ($connection) {
        $process = Get-Process -Id $connection.OwningProcess -ErrorAction SilentlyContinue
        $processName = if ($process) { $process.ProcessName } else { "未知进程" }
        Write-Check "$($p.Name) (端口 $($p.Port))" "OK" "已被 $processName 使用"
    } else {
        Write-Check "$($p.Name) (端口 $($p.Port))" "OK" "端口可用"
    }
}

Write-Host ""

# 3. 检查依赖服务
Write-Host "🔗 检查依赖服务..."

# 检查 PostgreSQL
try {
    $pgConnection = Test-NetConnection -ComputerName localhost -Port 5432 -WarningAction SilentlyContinue
    if ($pgConnection.TcpTestSucceeded) {
        Write-Check "PostgreSQL" "OK" "服务运行中"
    } else {
        Write-Check "PostgreSQL" "WARN" "服务未运行或无法连接"
    }
} catch {
    Write-Check "PostgreSQL" "WARN" "无法检测服务状态"
}

# 检查 MinIO
try {
    $minioConnection = Test-NetConnection -ComputerName localhost -Port 9000 -WarningAction SilentlyContinue
    if ($minioConnection.TcpTestSucceeded) {
        Write-Check "MinIO" "OK" "服务运行中"
    } else {
        Write-Check "MinIO" "WARN" "服务未运行或无法连接"
    }
} catch {
    Write-Check "MinIO" "WARN" "无法检测服务状态"
}

Write-Host ""

# 4. 检查 Node.js 和 npm
Write-Host "📦 检查开发环境..."

try {
    $nodeVersion = node --version 2>$null
    if ($nodeVersion) {
        Write-Check "Node.js" "OK" "版本 $nodeVersion"
    } else {
        Write-Check "Node.js" "ERROR" "未安装"
    }
} catch {
    Write-Check "Node.js" "ERROR" "未安装"
}

try {
    $npmVersion = npm --version 2>$null
    if ($npmVersion) {
        Write-Check "npm" "OK" "版本 $npmVersion"
    } else {
        Write-Check "npm" "ERROR" "未安装"
    }
} catch {
    Write-Check "npm" "ERROR" "未安装"
}

# 检查 node_modules
if (Test-Path "node_modules") {
    Write-Check "依赖包" "OK" "node_modules 存在"
} else {
    Write-Check "依赖包" "WARN" "node_modules 不存在，请运行 npm install"
}

Write-Host ""

# 5. 检查 Docker（可选）
Write-Host "🐳 检查 Docker..."

try {
    $dockerVersion = docker --version 2>$null
    if ($dockerVersion) {
        Write-Check "Docker" "OK" $dockerVersion
    } else {
        Write-Check "Docker" "WARN" "未安装（可选）"
    }
} catch {
    Write-Check "Docker" "WARN" "未安装（可选）"
}

try {
    $composeVersion = docker-compose --version 2>$null
    if ($composeVersion) {
        Write-Check "Docker Compose" "OK" $composeVersion
    } else {
        Write-Check "Docker Compose" "WARN" "未安装（可选）"
    }
} catch {
    Write-Check "Docker Compose" "WARN" "未安装（可选）"
}

Write-Host ""
Write-Host "========================================"

if ($script:HasErrors) {
    Write-Host "  ❌ 配置验证失败，请修复上述错误"
    Write-Host "========================================"
    exit 1
} elseif ($script:HasWarnings) {
    Write-Host "  ⚠️ 配置验证通过，但有警告"
    Write-Host "========================================"
    exit 0
} else {
    Write-Host "  ✅ 配置验证通过"
    Write-Host "========================================"
    exit 0
}