# Build MISF_VOB_Download.exe and install at project root (double-click to run).
# Output: <project root>\MISF_VOB_Download.exe + _internal\

$ErrorActionPreference = "Stop"
$Root = Split-Path -Parent $PSScriptRoot
Set-Location $Root

Write-Host "=== MISF VOB Download - production build (project root) ===" -ForegroundColor Cyan

$PortableChrome = Join-Path $Root "chrome-win\chrome-win\chrome.exe"
$PortableDriver = Join-Path $Root "chrome-win\chrome-win\chromedriver.exe"
if (-not (Test-Path $PortableChrome)) {
    throw "Portable Chromium not found: $PortableChrome (required for production build)"
}
if (-not (Test-Path $PortableDriver)) {
    Write-Warning "Bundled chromedriver missing: $PortableDriver (will download at runtime)"
} else {
    Write-Host "Using portable Chromium: $PortableChrome"
}

if (-not (Test-Path ".venv\Scripts\python.exe")) {
    Write-Host "Creating virtual environment..."
    python -m venv .venv
}

$Python = Join-Path $Root ".venv\Scripts\python.exe"
& $Python -m pip install --upgrade pip -q
& $Python -m pip install -r requirements.txt -q
& $Python -m pip install "pyinstaller>=6.10" -q

Write-Host "Running PyInstaller..."
& $Python -m PyInstaller --noconfirm MISF_VOB_Download.spec
if ($LASTEXITCODE -ne 0) {
    throw "PyInstaller failed with exit code $LASTEXITCODE"
}

$BuiltExe = Join-Path $Root "dist\MISF_VOB_Download.exe"
$BuiltDir = Join-Path $Root "dist\MISF_VOB_Download"
$BuiltDirExe = Join-Path $BuiltDir "MISF_VOB_Download.exe"

if (Test-Path $BuiltExe) {
    Write-Host "Installing one-file build to project root..."
    $ExeDest = Join-Path $Root "MISF_VOB_Download.exe"
    Get-Process -Name "MISF_VOB_Download" -ErrorAction SilentlyContinue | Stop-Process -Force
    Start-Sleep -Seconds 1
    Copy-Item $BuiltExe $ExeDest -Force
    Remove-Item $BuiltExe -Force
} elseif (Test-Path $BuiltDirExe) {
    Write-Host "Installing folder build to project root..."
    $ExeDest = Join-Path $Root "MISF_VOB_Download.exe"
    Get-Process -Name "MISF_VOB_Download" -ErrorAction SilentlyContinue | Stop-Process -Force
    Start-Sleep -Seconds 1
    $InternalDest = Join-Path $Root "_internal"

    Copy-Item $BuiltDirExe $ExeDest -Force
    if (Test-Path $InternalDest) {
        Remove-Item $InternalDest -Recurse -Force
    }
    Move-Item (Join-Path $BuiltDir "_internal") $InternalDest -Force
    Remove-Item $BuiltDir -Recurse -Force
} else {
    throw "Expected build output not found: $BuiltExe or $BuiltDirExe"
}
$DistFolder = Join-Path $Root "dist"
if (Test-Path $DistFolder) {
    $remaining = @(Get-ChildItem $DistFolder -Force -ErrorAction SilentlyContinue)
    if ($remaining.Count -eq 0) {
        Remove-Item $DistFolder -Force
    }
}

$InputDir = Join-Path $Root "Input"
$OutputDir = Join-Path $Root "Output"
New-Item -ItemType Directory -Force -Path (Join-Path $InputDir "PDFs") | Out-Null
New-Item -ItemType Directory -Force -Path $OutputDir | Out-Null
Copy-Item (Join-Path $Root "docs\PRODUCTION_README.txt") (Join-Path $Root "README_PRODUCTION.txt") -Force

Write-Host ""
Write-Host "Build complete." -ForegroundColor Green
Write-Host "  Run: $ExeDest"
Write-Host ""
Write-Host "First-time setup:" -ForegroundColor Yellow
Write-Host "  1. Copy Input\input.xlsx.example to Input\input.xlsx and fill credentials"
Write-Host "  2. Add facility names on the Facilities sheet"
Write-Host "  3. Keep chrome-win\ next to the .exe"
Write-Host "  4. Double-click MISF_VOB_Download.exe in this folder"
Write-Host ""
Write-Host 'See README_PRODUCTION.txt. Exe is at project root (no dist folder).'