$ErrorActionPreference = 'Stop'
$projectRoot = Split-Path -Parent $PSScriptRoot
$workPath = Join-Path $projectRoot ('temp\contact-flow-' + [guid]::NewGuid().ToString('N'))
New-Item -ItemType Directory -Path $workPath -Force | Out-Null
$databasePath = Join-Path $workPath 'test.mdb'
$configPath = Join-Path $workPath 'test.ini'
$csvPath = Join-Path $workPath 'contacts.csv'
$pickupPath = Join-Path $workPath 'pickup'
$scriptHost = Join-Path $env:SystemRoot 'SysWOW64\cscript.exe'
$powerShellX86 = Join-Path $env:SystemRoot 'SysWOW64\WindowsPowerShell\v1.0\powershell.exe'

try {
    $example = Get-Content -LiteralPath (Join-Path $projectRoot 'config.example.ini') -Raw
    $example.Replace('DB_PATH=data/MassMailer.mdb', ('DB_PATH=' + $databasePath)).Replace(
        'SMTP_TEST_TO=', 'SMTP_TEST_TO=test@example.invalid') |
        Set-Content -LiteralPath $configPath -Encoding UTF8
    @'
email,business_name,source_reference,acquired_at
one@example.invalid,"Example, Inc.",https://example.invalid/one,2026-10-20
two@example.invalid,Two,,
ONE@example.invalid,Duplicate,https://example.invalid/one,
blocked@example.invalid,Blocked,https://example.invalid/blocked,
'@ | Set-Content -LiteralPath $csvPath -Encoding UTF8

    & $scriptHost //nologo (Join-Path $PSScriptRoot 'init-db.vbs') $configPath
    if ($LASTEXITCODE -ne 0) { throw 'MDB initialization failed' }
    & $scriptHost //nologo (Join-Path $PSScriptRoot 'launch.vbs') check $configPath
    if ($LASTEXITCODE -ne 0) { throw 'Startup preflight failed' }
    & $powerShellX86 -NoProfile -ExecutionPolicy Bypass -File (Join-Path $PSScriptRoot 'test-secret-store.ps1') -ConfigPath $configPath
    if ($LASTEXITCODE -ne 0) { throw 'Protected password test failed' }
    New-Item -ItemType Directory -Path $pickupPath | Out-Null
    & $powerShellX86 -NoProfile -ExecutionPolicy Bypass -File (Join-Path $PSScriptRoot 'test-smtp-message.ps1') -ConfigPath $configPath -PickupDirectory $pickupPath
    if ($LASTEXITCODE -ne 0) { throw 'Pickup MIME test failed' }
    $messages = @(Get-ChildItem -LiteralPath $pickupPath -Filter '*.eml' -File)
    if ($messages.Count -ne 1) { throw 'Pickup MIME test did not create one message' }
    $mime = Get-Content -LiteralPath $messages[0].FullName -Raw
    if ($mime -notmatch 'multipart/related' -or $mime -notmatch 'Content-ID:\s*<massmailer-test-image>') {
        throw 'Pickup MIME is missing a related inline image'
    }
    Write-Output 'HTML and inline-image MIME pickup test passed'
    & $scriptHost //nologo //E:JScript (Join-Path $PSScriptRoot 'test-contact-flow.js') $databasePath $csvPath
    if ($LASTEXITCODE -ne 0) { throw 'Contact flow test failed' }
}
finally {
    if (Test-Path -LiteralPath $pickupPath) {
        Get-ChildItem -LiteralPath $pickupPath -File | ForEach-Object { Remove-Item -LiteralPath $_.FullName -Force }
        Remove-Item -LiteralPath $pickupPath -Force
    }
    foreach ($fileName in @('test.ini', 'contacts.csv', 'test.mdb', 'test.ldb')) {
        $filePath = Join-Path $workPath $fileName
        if (Test-Path -LiteralPath $filePath) { Remove-Item -LiteralPath $filePath -Force }
    }
    if (Test-Path -LiteralPath $workPath) { Remove-Item -LiteralPath $workPath -Force }
}