# ============================================================
#  一键更新 IIS 上的「智慧缫丝系统」(f9-web-ai-test)
#  改动代码后运行：停站点 → 重新发布后端 → 同步前端产物 → 启站点 → 自检
#  前置：先执行过 deploy-iis.ps1；前端已用 npm run build 构建
#  必须以【管理员身份】运行（停/启 IIS 站点、替换被占用的程序文件）
# ============================================================
$ErrorActionPreference = 'Stop'

$root       = 'C:\Users\32453\CodeBuddy\20260825142915'
$webDir     = Join-Path $root 'web'
$distDir    = Join-Path $webDir 'dist'
$apiProject = Join-Path $root 'backend\F9WebAiTest.Api'
$publishDir = Join-Path $root 'publish'
$appPoolName = 'F9WebAiTest'
$siteName    = 'F9WebAiTest'

$logDir = Join-Path $root '_runlog'
New-Item -ItemType Directory -Force -Path $logDir | Out-Null
try { Start-Transcript -Path (Join-Path $logDir 'update-iis.log') -Force -ErrorAction Stop | Out-Null } catch { }

function Info($m) { Write-Host "[更新] $m" -ForegroundColor Cyan }
function Warn($m) { Write-Host "[警告] $m" -ForegroundColor Yellow }

if (-not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole]::Administrator)) {
    throw '请以管理员身份运行本脚本'
}
if (-not (Test-Path $distDir)) { throw "前端产物不存在：$distDir（请先在 web 目录执行 npm run build）" }

# 必须先加载 WebAdministration，IIS: 驱动器才存在（否则站点判断会误报不存在）
Import-Module WebAdministration
if (-not (Get-Website -Name $siteName -ErrorAction SilentlyContinue)) { throw "IIS 站点 $siteName 不存在，请先运行 deploy-iis.ps1" }

# ---------- 1. 停站点与应用池（释放 dll 与数据库文件占用）----------
if ((Get-Website -Name $siteName).State -ne 'Stopped') { Stop-Website -Name $siteName }
if ((Get-WebAppPoolState -Name $appPoolName).Value -ne 'Stopped') { Stop-WebAppPool -Name $appPoolName }
Start-Sleep -Seconds 3
Info '站点已停止，文件已释放'

# ---------- 2. 发布后端（Release）----------
Info '发布后端（Release）...'
& 'C:\Program Files\dotnet\dotnet.exe' publish $apiProject -c Release -o $publishDir 2>&1 |
    Where-Object { $_ -match 'error|已成功|-> ' } | Select-Object -Last 5
if ($LASTEXITCODE -ne 0) { throw "dotnet publish 失败（退出码 $LASTEXITCODE）" }

# ---------- 3. 同步前端产物到 wwwroot ----------
$wwwroot = Join-Path $publishDir 'wwwroot'
if (Test-Path $wwwroot) { Remove-Item $wwwroot -Recurse -Force }
New-Item -ItemType Directory -Force -Path $wwwroot | Out-Null
Copy-Item (Join-Path $distDir '*') $wwwroot -Recurse -Force
Info "前端产物已同步：$wwwroot"

# ---------- 4. 目录权限兜底 ----------
& icacls $publishDir /grant "IIS AppPool\${appPoolName}:(OI)(CI)M" /T /Q | Out-Null

# ---------- 5. 启动站点 ----------
Start-WebAppPool -Name $appPoolName
Start-Website -Name $siteName
Start-Sleep -Seconds 5
Info '站点已启动'

# ---------- 6. 自检 ----------
$url = 'http://localhost/'
try {
    $r = Invoke-WebRequest -Uri $url -UseBasicParsing -TimeoutSec 40
    Info "首页：HTTP $($r.StatusCode)"
} catch {
    Warn "首页访问失败：$($_.Exception.Message)"
}
try {
    $login = Invoke-RestMethod -Uri "${url}api/auth/login" -Method Post -ContentType 'application/json' `
        -Body '{"userName":"admin","password":"123456"}' -TimeoutSec 40
    Info "登录接口：code=$($login.code) $($login.message)"
} catch {
    Warn "登录接口调用失败：$($_.Exception.Message)"
}

Write-Host ''
Info "更新完成，访问地址：$url"