param(
  [switch]$RunBuild
)

# Post-build helper for Windows:
# - optionally runs the tauri windows build when -RunBuild is passed
# - finds the generated release EXE and copies it to a Chinese-named exe alongside the original

Set-StrictMode -Version Latest

$repoRoot = Split-Path -Parent $MyInvocation.MyCommand.Path
Set-Location $repoRoot

if ($RunBuild) {
  Write-Output "Running npm install and tauri windows build..."
  npm install
  npm run tauri:build:windows
}

$possibleDirs = @(
  "$repoRoot\src-tauri\target\release",
  "$repoRoot\src-tauri\target\x86_64-pc-windows-msvc\release",
  "$repoRoot\src-tauri\target\x86_64-pc-windows-msvc\release\bundle\nsis"
)

$foundExe = $null
$foundDir = $null
foreach ($dir in $possibleDirs) {
  if (-not (Test-Path $dir)) { continue }
  $candidate = Get-ChildItem -Path $dir -Filter *.exe -File -Recurse -ErrorAction SilentlyContinue |
    Where-Object { $_.Name -notmatch 'setup|bundle|uninstaller' } |
    Sort-Object LastWriteTime -Descending |
    Select-Object -First 1
  if ($candidate) {
    $foundExe = $candidate
    $foundDir = $dir
    break
  }
}

if (-not $foundExe) {
  Write-Error "No executable (.exe) found in any of: `n$($possibleDirs -join "`n")"
  Exit 1
}

$destName = 'BUFF选品-STEAM扫货（游铛铛）.exe'
$tauriConf = Join-Path $repoRoot 'src-tauri\tauri.conf.json'
$productName = $null
if (Test-Path $tauriConf) {
  try {
    $json = Get-Content -Path $tauriConf -Raw | ConvertFrom-Json -ErrorAction Stop
    if ($json.package -and $json.package.productName) {
      $productName = $json.package.productName
    }
  } catch {
    Write-Warning "Failed to read tauri.conf.json: $($_.Exception.Message)"
  }
}

if (-not $productName) {
  $productName = $foundExe.BaseName
}

# Sanitize filename: remove characters invalid in Windows filenames
$invalidChars = [System.IO.Path]::GetInvalidFileNameChars()
$sanitized = $productName
foreach ($c in $invalidChars) {
  $sanitized = $sanitized -replace [regex]::Escape($c), '-'
}

# Ensure .exe extension
if (-not $sanitized.ToLower().EndsWith('.exe')) {
  $sanitized = "$sanitized.exe"
}

$destPath = Join-Path $foundDir $sanitized

Try {
  Copy-Item -Path $foundExe.FullName -Destination $destPath -Force
  Write-Output "Copied '$($foundExe.Name)' -> '$sanitized' in $foundDir"
} Catch {
  Write-Error "Failed to copy exe: $($_.Exception.Message)"
  Exit 1
}

Exit 0