# build_windows.ps1 - ONE-COMMAND build: frontend + native bridge + engine + Tauri (NSIS + MSI)
#
#  powershell -ExecutionPolicy Bypass -File build_windows.ps1             # FULL (tat ca)
#  powershell -ExecutionPolicy Bypass -File build_windows.ps1 -Frontend   # chi bundle JS + sync static
#  powershell -ExecutionPolicy Bypass -File build_windows.ps1 -Bridge     # chi build native bridge + sync binaries
#  powershell -ExecutionPolicy Bypass -File build_windows.ps1 -Engine     # chi build engine + sync resources
#  powershell -ExecutionPolicy Bypass -File build_windows.ps1 -Tauri      # chi build installer Tauri
#  ... -SkipPip -SkipNpm                                                  # bo qua cai dependency
#
# Moi mode TU DONG copy output vao dung vi tri (dist/, src-tauri/resources/,
# src-tauri/binaries/) va TU DONG bump cache-buster (?v=) -> khong the miss
# buoc copy nao du build theo cach nao. Bridge chi rebuild khi source moi hon.
# LUU Y: file nay chi dung ky tu ASCII (khong dau) - PowerShell 5.1 doc an toan.
param(
  [switch]$Frontend,
  [switch]$Bridge,
  [switch]$Engine,
  [switch]$Tauri,
  [switch]$SkipPip,
  [switch]$SkipNpm
)

# "Stop" + npm/pip warn tren stderr -> NativeCommandError -> chet oai (da gap o
# build_install.ps1). Dung "Continue" + kiem tra $LASTEXITCODE sau tung lenh native.
$ErrorActionPreference = "Continue"
Set-Location $PSScriptRoot

$any        = $Frontend -or $Bridge -or $Engine -or $Tauri
$doFrontend = $Frontend -or $Engine -or (-not $any)   # Engine can bundle frontend moi truoc
$doBridge   = $Bridge   -or (-not $any)
$doEngine   = $Engine   -or (-not $any)
$doTauri    = $Tauri    -or (-not $any)

$Stamp = Get-Date -Format "yyyyMMddHHmm"

function Fail([string]$msg) { Write-Host "ERROR: $msg" -ForegroundColor Red; exit 1 }

if ($doEngine -or $doTauri) {
  Write-Host "== [0] Kill engine cu (chi install/dist/resources, khong dong production) =="
  Get-Process -ErrorAction SilentlyContinue | Where-Object {
    $_.Path -like "$PSScriptRoot\install\*" -or $_.Path -like "$PSScriptRoot\dist\daw_engine\*" -or $_.Path -like "$PSScriptRoot\src-tauri\resources\daw_engine\*"
  } | Stop-Process -Force -ErrorAction SilentlyContinue
  Start-Sleep -Milliseconds 500
}

# ---- [1] Frontend bundle + sync static -------------------------------------
if ($doFrontend) {
  Write-Host "== [1] Frontend bundle (app.jsx -> app.precompiled.js, cache-buster v=$Stamp) =="
  if (-not $SkipNpm) { npm install; if ($LASTEXITCODE -ne 0) { Fail "npm install that bai" } }
  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 ($LASTEXITCODE -ne 0) { Fail "npm install @babel/standalone that bai" }
  }
  if (-not (Test-Path "node_modules\@babel\standalone")) { Fail "Khong cai duoc @babel/standalone. Kiem tra ket noi npm!" }
  node build.mjs $Stamp
  if ($LASTEXITCODE -ne 0) { Fail "build.mjs that bai" }

  # Stamp cache-buster vao index.html source (no-cache HTML, bundle ?v= phai moi)
  $idx = "app\templates\index.html"
  $utf8 = New-Object System.Text.UTF8Encoding($false)
  $html = [IO.File]::ReadAllText($idx, $utf8)
  [IO.File]::WriteAllText($idx, [regex]::Replace($html, "app\.precompiled\.js\?v=\d+", "app.precompiled.js?v=$Stamp"), $utf8)

  # Sync 3 file static -> dist + src-tauri/resources (ban packaged engine doc tu day)
  $pairs = @(
    @("static\js\app.precompiled.js", "_internal\app\static\js\app.precompiled.js"),
    @("static\js\sf-fx-realtime.js",  "_internal\app\static\js\sf-fx-realtime.js"),
    @("templates\index.html",         "_internal\app\templates\index.html")
  )
  $roots = @("dist\daw_engine", "src-tauri\resources\daw_engine")
  foreach ($p in $pairs) {
    $src = Join-Path "app" $p[0]
    foreach ($r in $roots) {
      $dst = Join-Path $r $p[1]
      New-Item -ItemType Directory -Force (Split-Path $dst) | Out-Null
      Copy-Item $src $dst -Force
    }
  }
  # Verify hash source == copy (bat loi "copy sai / thieu")
  foreach ($p in $pairs) {
    $srcHash = (Get-FileHash (Join-Path "app" $p[0]) -Algorithm SHA256).Hash
    foreach ($r in $roots) {
      $dst = Join-Path $r $p[1]
      if (-not (Test-Path $dst)) { Fail "Thieu file sau sync: $dst" }
      if ((Get-FileHash $dst -Algorithm SHA256).Hash -ne $srcHash) { Fail "Hash khac nhau sau sync: $dst" }
    }
  }
  Write-Host "Sync static OK (dist + src-tauri/resources)"
}

# ---- [2] Native bridge (MSBuild Release x64) --------------------------------
if ($doBridge) {
  Write-Host "== [2] Native bridge (MSBuild Release x64 -> src-tauri/binaries) =="
  $msbuildCandidates = @(
    "${env:ProgramFiles(x86)}\Microsoft Visual Studio\2019\BuildTools\MSBuild\Current\Bin\amd64\MSBuild.exe",
    "${env:ProgramFiles(x86)}\Microsoft Visual Studio\2022\BuildTools\MSBuild\Current\Bin\amd64\MSBuild.exe",
    "${env:ProgramFiles(x86)}\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\amd64\MSBuild.exe",
    "${env:ProgramFiles(x86)}\Microsoft Visual Studio\2022\Community\MSBuild\Current\Bin\amd64\MSBuild.exe"
  )
  $msbuild = $msbuildCandidates | Where-Object { Test-Path $_ } | Select-Object -First 1
  if (-not $msbuild) { Fail "Khong tim thay MSBuild.exe. Cai VS Build Tools 2019/2022 (workload C++) va chay CMake native_bridge truoc." }

  foreach ($name in @("daw_vst_bridge", "fx_vst_bridge", "plugin_host")) {
    $proj = "native_bridge\build\bridge-win\$name.vcxproj"
    $exe  = "native_bridge\build\bridge-win\Release\$name.exe"
    if (-not (Test-Path $proj)) { Fail "Thieu project: $proj (can CMake native_bridge truoc - xem native_bridge/build/bridge-win)" }
    $newest = Get-ChildItem -Path "native_bridge\src","native_bridge\include" -Recurse -Include *.cpp,*.h,*.hpp -ErrorAction SilentlyContinue |
              Sort-Object LastWriteTime -Descending | Select-Object -First 1
    $needBuild = $true
    if ((Test-Path $exe) -and $newest) { $needBuild = $newest.LastWriteTime -gt (Get-Item $exe).LastWriteTime }
    if ($needBuild) {
      Write-Host "Build $name ..."
      & $msbuild $proj "/p:Configuration=Release" "/p:Platform=x64" "/m" "/nologo" "/v:m"
      if ($LASTEXITCODE -ne 0) { Fail "MSBuild $name that bai" }
    } else {
      Write-Host "Skip $name (exe moi nhat)"
    }
    if (-not (Test-Path $exe)) { Fail "Thieu output: $exe" }
    Copy-Item $exe "src-tauri\binaries\$name.exe" -Force
    Copy-Item $exe "src-tauri\binaries\$name-x86_64-pc-windows-msvc.exe" -Force
  }
  foreach ($dll in @("libfluidsynth-3.dll", "jpeg62.dll")) {
    if (Test-Path "native_bridge\build\Release\$dll") {
      Copy-Item "native_bridge\build\Release\$dll" "src-tauri\binaries\$dll" -Force
    }
  }
  Write-Host "Bridge OK -> src-tauri/binaries"
}

# ---- [3] Engine (PyInstaller) + sync resources ------------------------------
if ($doEngine) {
  Write-Host "== [3] Engine (PyInstaller onedir -> src-tauri/resources) =="
  $specContent = Get-Content "engine.spec" -Raw -ErrorAction SilentlyContinue
  if ($specContent -notmatch "collect_data_files\('app'") { Fail "engine.spec CU (thieu collect_data_files('app')). Pull code moi truoc khi build!" }
  if (-not $SkipPip) {
    python -m pip install --upgrade pip
    python -m pip install -r requirements.txt pyinstaller pywin32
  }
  if (Test-Path "dist\daw_engine") { Remove-Item -Recurse -Force "dist\daw_engine" }
  pyinstaller engine.spec --clean --noconfirm
  if ($LASTEXITCODE -ne 0) { Fail "pyinstaller that bai" }
  python tools\verify_bundle.py
  if ($LASTEXITCODE -ne 0) { Fail "Bundle thieu asset - dung build, kiem tra engine.spec datas" }
  # Ban cai phai SACH: khong duoc mang theo DB/password/secret/scan-state cua dev.
  $devFiles = Get-ChildItem "dist\daw_engine" -Recurse -File -ErrorAction SilentlyContinue | Where-Object {
    $_.Name -in @(".secret_key", "plugin_dirs.json", "sf_scan_state.json", "sf_scan_state.json.bak-root") -or
    $_.Extension -eq ".db"
  }
  if ($devFiles) {
    $devFiles | ForEach-Object { Write-Host "  DEV-CONFIG: $($_.FullName)" -ForegroundColor Red }
    Fail "Bundle chua config dev - DUNG TAO BAN CAI"
  }
  if (-not (Test-Path "dist\daw_engine\daw_engine.exe")) { Fail "dist\daw_engine\daw_engine.exe khong ton tai (onedir build loi?)" }
  # Robocopy /MIR (khong Copy-Item wildcard): giu dung cau truc onedir exe+_internal.
  robocopy "dist\daw_engine" "src-tauri\resources\daw_engine" /MIR /NFL /NDL /NJH /NP /R:1 /W:1 | Out-Null
  if ($LASTEXITCODE -ge 8) { Fail "robocopy resources that bai (exit $LASTEXITCODE)" }
  if (-not (Test-Path "src-tauri\resources\daw_engine\_internal")) { Fail "resources/daw_engine/_internal thieu - onedir layout sai" }
  Write-Host "Engine OK -> src-tauri/resources/daw_engine"
}

# ---- [4] Tauri installer -----------------------------------------------------
if ($doTauri) {
  Write-Host "== [4] 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 "== [5] Tauri build (NSIS + MSI) =="
  if (-not (Test-Path "src-tauri\resources\daw_engine\daw_engine.exe")) { Fail "resources/daw_engine thieu - chay -Engine hoac full truoc" }
  if (-not (Test-Path "src-tauri\resources\daw_engine\_internal")) { Fail "resources/daw_engine/_internal thieu (onedir khong day du)" }
  foreach ($name in @("daw_vst_bridge", "fx_vst_bridge", "plugin_host")) {
    if (-not (Test-Path "src-tauri\binaries\$name-x86_64-pc-windows-msvc.exe")) { Fail "Thieu src-tauri\binaries\$name-x86_64-pc-windows-msvc.exe - chay -Bridge truoc" }
  }
  if (-not $SkipNpm) { npm install -D @tauri-apps/cli; if ($LASTEXITCODE -ne 0) { Fail "npm install @tauri-apps/cli that bai" } }
  npx tauri build
  if ($LASTEXITCODE -ne 0) { Fail "tauri build that bai" }
}

Write-Host ""
Write-Host "== DONE =="
Write-Host "  NSIS: src-tauri\target\release\bundle\nsis\ScoreFXStudio_1.0.0_x64-setup.exe"
Write-Host "  MSI : src-tauri\target\release\bundle\msi\ScoreFXStudio_1.0.0_x64_en-US.msi"
Write-Host ""
Write-Host "== XAC MINH SAU KHI CAI DAT =="
Write-Host "  Mo %APPDATA%\SonicForgeDAW\logs\spawn.log - phai thay [resource_dir/daw_engine (map layout)] ...exists=True"