# build_windows.ps1 - ONE-COMMAND build: daw_engine.exe (PyInstaller) + Tauri v2 (NSIS + MSI)
# Chay tren Windows:  powershell -ExecutionPolicy Bypass -File build_windows.ps1
# LUU Y: file nay chi dung ky tu ASCII (khong dau, khong em-dash) - PowerShell 5.1
# doc .ps1 khong BOM theo ANSI, ky tu Unicode bi hong -> "String is missing terminator".
$ErrorActionPreference = "Stop"
Set-Location $PSScriptRoot

# Kill moi daw_engine con song tu build/truoc (windowed, khong console ->
# de quen -> file exe dang chay bi khoa -> Tauri build loi PermissionDenied
# khi doc externalBin). Stop-Process im lang neu khong co tien trinh nao.
Write-Host "== [0/6] Kill daw_engine.exe cu (neu dang chay) =="
Get-Process -Name "daw_engine" -ErrorAction SilentlyContinue | Stop-Process -Force -ErrorAction SilentlyContinue
Start-Sleep -Milliseconds 500

Write-Host "== [1/6] Python dependencies =="
python -m pip install --upgrade pip
python -m pip install -r requirements.txt pyinstaller pywin32

Write-Host "== [2/6] Frontend bundle (app.jsx -> app.precompiled.js) =="
npm install
# Dam bao @babel/standalone co (build.mjs import truc tiep - da gap
# ERR_MODULE_NOT_FOUND tren may Windows khi package.json cu thieu dep).
if (-not (Test-Path "node_modules\@babel\standalone")) {
  Write-Host "Thieu @babel/standalone - dang cai them..."
  npm install @babel/standalone --no-audit --no-fund
}
if (-not (Test-Path "node_modules\@babel\standalone")) {
  Write-Host "ERROR: Khong cai duoc @babel/standalone. Kiem tra ket noi npm!" -ForegroundColor Red
  exit 1
}
node build.mjs   # @babel/standalone; thay cho 'npm run build' (Babel 8 ESM-only CLI conflict)

Write-Host "== [3/6] Build daw_engine.exe (PyInstaller) =="
pyinstaller engine.spec --clean --noconfirm

Write-Host "== [3.5/6] Verify bundle contents (app/static, app/templates phai co) =="
# Bat loi bundle NGAY tai build (da gap 2 lan: chay pyinstaller tu noi khac
# -> static/templates thieu -> exe crash 'Directory ...\app\static does not exist').
# Dung tools/verify_bundle.py (parse TOC bang ast, chap nhan ca / va \) thay
# vi regex thong thuong (TOC Windows co the dung backslash -> false positive).
# Truoc tien kiem tra engine.spec phai la ban moi (collect_data_files).
$specContent = Get-Content "engine.spec" -Raw -ErrorAction SilentlyContinue
if ($specContent -notmatch "collect_data_files\('app'") {
  Write-Host "ERROR: engine.spec CU (thieu collect_data_files('app')). Pull code moi truoc khi build!" -ForegroundColor Red
  exit 1
}
python tools\verify_bundle.py
if ($LASTEXITCODE -ne 0) {
  Write-Host "ERROR: Bundle thieu asset - dung build, kiem tra engine.spec datas!" -ForegroundColor Red
  exit 1
}

Write-Host "== [4/6] ONEDIR engine -> src-tauri/resources/daw_engine (Tauri resources) =="
# ONEDIR: copy ca thu muc dist\daw_engine\ (exe + _internal) vao resources.
# Tauri bundle resources -> resource_dir()/daw_engine/daw_engine.exe luc runtime.
if (-not (Test-Path "dist\daw_engine\daw_engine.exe")) {
  Write-Host "ERROR: dist\daw_engine\daw_engine.exe khong ton tai (onedir build loi?)" -ForegroundColor Red
  exit 1
}
if (Test-Path "src-tauri\resources\daw_engine") {
  Remove-Item -Recurse -Force "src-tauri\resources\daw_engine"
}
New-Item -ItemType Directory -Force "src-tauri\resources\daw_engine" | Out-Null
Copy-Item "dist\daw_engine\*" "src-tauri\resources\daw_engine\" -Recurse -Force
Write-Host "Copied onedir engine -> src-tauri\resources\daw_engine"

Write-Host "== [5/6] VC++ Redistributable cho hooks.nsh =="
if (-not (Test-Path src-tauri\vc_redist.x64.exe)) {
  Invoke-WebRequest -Uri "https://aka.ms/vs/17/release/vc_redist.x64.exe" -OutFile src-tauri\vc_redist.x64.exe
}

Write-Host "== [6/6] Tauri build (NSIS .exe + MSI) =="
# Guard: resources/daw_engine PHAI co exe + _internal truoc khi tauri build
# (glob trong tauri.conf.json fail ngay "path not found" neu thieu).
if (-not (Test-Path "src-tauri\resources\daw_engine\daw_engine.exe")) {
  Write-Host "ERROR: src-tauri\resources\daw_engine\daw_engine.exe khong co - buoc [4/6] that bai?" -ForegroundColor Red
  exit 1
}
if (-not (Test-Path "src-tauri\resources\daw_engine\_internal")) {
  Write-Host "ERROR: thieu src-tauri\resources\daw_engine\_internal (onedir khong day du)" -ForegroundColor Red
  exit 1
}
npm install -D @tauri-apps/cli
npx tauri build

Write-Host ""
Write-Host "== DONE =="
Write-Host "  NSIS: src-tauri\target\release\bundle\nsis\SonicForgeDAW_1.0.0_x64-setup.exe"
Write-Host "  MSI : src-tauri\target\release\bundle\msi\SonicForgeDAW_1.0.0_x64_en-US.msi"
Write-Host ""
Write-Host "== XAC MINH SAU KHI CAI DAT (quan trong) =="
Write-Host "  Mo %APPDATA%\SonicForgeDAW\logs\spawn.log - phai thay:"
Write-Host "    [resource_dir/daw_engine (map layout)] ...exists=True"
Write-Host "  Neu exists=False: bundle resources KHONG vao installer (chay lai buoc [4/6])."
Write-Host "  Engine phai nam o: <thu muc cai dat>\daw_engine\daw_engine.exe"
