<#
.SYNOPSIS
  Vignette 로컬 개발 스택을 깔끔하게 (재)기동한다: 엔진 게이트웨이(9099) + API(8000) + 웹(5173).

.DESCRIPTION
  - 기존(고아 포함) 프로세스를 커맨드라인 기준으로 정확히 정리한 뒤 새로 띄운다(--reload 미사용: 결정론적).
  - API는 DB 미가용 시 in-memory degraded로 기동된다(Postgres 불필요). dev-login + seed 페르소나 활성.
  - 로그는 .devlogs/ 에 남긴다. 종료는 scripts/dev-down.ps1.

.PARAMETER NoGateway
  엔진 게이트웨이를 띄우지 않는다(AI 턴 생성 불가, UI만 테스트 시).
.PARAMETER NoWeb
  vite 웹 서버를 띄우지 않는다(API만 필요할 때).
.EXAMPLE
  powershell -NoProfile -ExecutionPolicy Bypass -File scripts\dev-up.ps1
#>
param(
  [switch]$NoGateway,
  [switch]$NoWeb,
  [switch]$NoDb
)
$ErrorActionPreference = 'Stop'
$repo = Split-Path -Parent $PSScriptRoot
$api  = Join-Path $repo 'apps\api'
$web  = Join-Path $repo 'apps\web'
$logs = Join-Path $repo '.devlogs'
New-Item -ItemType Directory -Force -Path $logs | Out-Null

# uvicorn 이 설치된 python 을 해석한다(시스템에 3.11/3.14 등 복수 python 공존 — 'python' 별칭이
# uvicorn 없는 인터프리터를 가리킬 수 있다). 후보를 순회해 import uvicorn 성공하는 것을 고른다.
$pyCandidates = @(
  (Join-Path $env:LOCALAPPDATA 'Programs\Python\Python311\python.exe'),
  (Join-Path $env:LOCALAPPDATA 'Programs\Python\Python312\python.exe'),
  'py',
  'python'
)
$Python = $null
foreach ($c in $pyCandidates) {
  $exe = $c; $pre = @()
  if ($c -eq 'py') { $pre = @('-3') }
  try {
    & $exe @pre '-c' 'import uvicorn' 2>$null
    if ($LASTEXITCODE -eq 0) { $Python = $exe; $PyPre = $pre; break }
  } catch {}
}
if (-not $Python) { Write-Host 'ERROR: uvicorn 설치된 python 을 못 찾음 (pip install -r apps/api/requirements.txt)'; exit 1 }
Write-Host ("python: {0} {1}" -f $Python, ($PyPre -join ' '))

function Stop-Stale([string]$pattern, [string]$label) {
  Get-CimInstance Win32_Process -ErrorAction SilentlyContinue |
    Where-Object { ($_.Name -eq 'python.exe' -or $_.Name -eq 'node.exe') -and $_.CommandLine -and $_.CommandLine -match $pattern } |
    ForEach-Object {
      Write-Host ("  stop {0,-8} PID {1}" -f $label, $_.ProcessId)
      Stop-Process -Id $_.ProcessId -Force -ErrorAction SilentlyContinue
    }
}

function Wait-Health([string]$url, [string]$label, [int]$timeoutSec = 40) {
  $deadline = (Get-Date).AddSeconds($timeoutSec)
  while ((Get-Date) -lt $deadline) {
    try {
      $r = Invoke-WebRequest -Uri $url -TimeoutSec 4 -UseBasicParsing -ErrorAction Stop
      if ($r.StatusCode -ge 200 -and $r.StatusCode -lt 500) { Write-Host "  OK  $label ($url)"; return $true }
    } catch { Start-Sleep -Milliseconds 600 }
  }
  Write-Host "  WARN $label 미응답 ($url) — .devlogs 로그 확인"; return $false
}

function Ensure-DevDb {
  # Docker Postgres(pgvector)를 apps/api/.env 의 DATABASE_URL 자격증명에 맞춰 보장한다.
  # DB가 있어야 페르소나 source=database 가 되어 UI 회기 시작이 열린다(무DB면 degraded로 막힘).
  docker ps *> $null 2>&1
  if ($LASTEXITCODE -ne 0) { Write-Host "  WARN Docker 데몬 미응답 — DB 없이 degraded(UI 세션 시작 제한). Docker Desktop 실행 필요."; return }
  $running = docker ps --filter name=vignette-dev-db --format "{{.Names}}" 2>$null
  if ("$running" -match 'vignette-dev-db') { Write-Host "  OK  db (vignette-dev-db 실행 중)"; return }
  docker rm -f vignette-dev-db *> $null 2>&1
  $envLines = Get-Content (Join-Path $api '.env')
  $dbUrl = (($envLines | Where-Object { $_ -match '^DATABASE_URL=' }) -replace '^DATABASE_URL=','').Trim()
  if ($dbUrl -notmatch 'postgresql://([^:]+):([^@]+)@[^:]+:([0-9]+)/(\S+)') { Write-Host "  WARN DATABASE_URL 파싱 실패 — DB 스킵"; return }
  $u=$Matches[1]; $p=$Matches[2]; $port=$Matches[3]; $db=$Matches[4]
  $initPath = Join-Path $repo 'infra\db\init'
  docker run -d --name vignette-dev-db -p "$port`:5432" -e POSTGRES_USER=$u -e POSTGRES_PASSWORD=$p -e POSTGRES_DB=$db -e APP_DB_USER=vignette_app -e APP_DB_PASSWORD=vignette_app -v "$initPath`:/docker-entrypoint-initdb.d:ro" pgvector/pgvector:pg16 *> $null
  for ($i=0; $i -lt 24; $i++) {
    Start-Sleep -Seconds 2
    docker exec vignette-dev-db pg_isready -U $u *> $null 2>&1
    if ($LASTEXITCODE -eq 0) { Write-Host "  OK  db (Postgres 준비됨, init 스키마 적용)"; Start-Sleep -Seconds 1; return }
  }
  Write-Host "  WARN db 준비 타임아웃"
}

Write-Host "[1/4] 기존 스택 정리..."
Stop-Stale 'engine_gateway\.gateway' 'gateway'
Stop-Stale 'app\.main:app'           'api'
Stop-Stale 'vite'                    'web'
Start-Sleep -Seconds 2

if (-not $NoDb) {
  Write-Host "[DB] Postgres(pgvector) 보장..."
  Ensure-DevDb
}

if (-not $NoGateway) {
  Write-Host "[2/4] 엔진 게이트웨이 :9099 (claude_cli)..."
  Start-Process -FilePath $Python `
    -ArgumentList (@($PyPre) + @('-m','uvicorn','engine_gateway.gateway:app','--host','127.0.0.1','--port','9099')) `
    -WorkingDirectory $api -WindowStyle Hidden `
    -RedirectStandardOutput (Join-Path $logs 'gateway.out.log') `
    -RedirectStandardError  (Join-Path $logs 'gateway.err.log')
} else { Write-Host "[2/4] (게이트웨이 건너뜀)" }

Write-Host "[3/4] API :8000 (degraded in-memory OK, seed 페르소나)..."
$env:AUTO_SEED_PERSONAS = 'true'
$env:ALLOW_SEED_PERSONA_FALLBACK = 'true'
Start-Process -FilePath $Python `
  -ArgumentList (@($PyPre) + @('-m','uvicorn','app.main:app','--host','127.0.0.1','--port','8000')) `
  -WorkingDirectory $api -WindowStyle Hidden `
  -RedirectStandardOutput (Join-Path $logs 'api.out.log') `
  -RedirectStandardError  (Join-Path $logs 'api.err.log')

if (-not $NoWeb) {
  Write-Host "[4/4] 웹 vite :5173..."
  Start-Process -FilePath 'cmd.exe' -ArgumentList '/c','npm run dev' `
    -WorkingDirectory $web -WindowStyle Hidden `
    -RedirectStandardOutput (Join-Path $logs 'web.out.log') `
    -RedirectStandardError  (Join-Path $logs 'web.err.log')
} else { Write-Host "[4/4] (웹 건너뜀)" }

Start-Sleep -Seconds 3
Write-Host "`n헬스 체크:"
if (-not $NoGateway) { Wait-Health 'http://127.0.0.1:9099/health' 'gateway' | Out-Null }
Wait-Health 'http://127.0.0.1:8000/health' 'api' | Out-Null
if (-not $NoWeb) { Wait-Health 'http://localhost:5173/' 'web' | Out-Null }

Write-Host "`n준비 완료. 진입점: http://localhost:5173  (로그인 페이지에서 dev-login)"
Write-Host "종료: powershell -NoProfile -ExecutionPolicy Bypass -File scripts\dev-down.ps1"