[CmdletBinding()]
param(
    [string]$Model = "doubao-seed-2-0-lite-260215"
)

$ErrorActionPreference = "Stop"
$scriptDirectory = Split-Path -Parent $MyInvocation.MyCommand.Path
$runtimeDirectory = Join-Path $scriptDirectory "runtime"
$environmentFile = Join-Path $runtimeDirectory "local-rtc.env"
$apiKeyFile = Join-Path $runtimeDirectory "ark-api-key"
$utf8NoBom = [System.Text.UTF8Encoding]::new($false)

if (-not (Test-Path -LiteralPath $environmentFile -PathType Leaf)) {
    throw "Run .\deploy\local-rtc\configure.ps1 before configuring Ark summaries."
}

$secureKey = Read-Host "Ark API Key (input is hidden)" -AsSecureString
$pointer = [Runtime.InteropServices.Marshal]::SecureStringToBSTR($secureKey)
try {
    $apiKey = [Runtime.InteropServices.Marshal]::PtrToStringBSTR($pointer)
}
finally {
    [Runtime.InteropServices.Marshal]::ZeroFreeBSTR($pointer)
}
if ([string]::IsNullOrWhiteSpace($apiKey)) {
    throw "Ark API Key is required."
}

$selectedModel = Read-Host "Ark content Model ID or Endpoint ID [$Model]"
if ([string]::IsNullOrWhiteSpace($selectedModel)) {
    $selectedModel = $Model
}
$selectedModel = $selectedModel.Trim()
if ([string]::IsNullOrWhiteSpace($selectedModel)) {
    throw "Ark content model is required."
}

$settings = [ordered]@{}
foreach ($line in Get-Content -LiteralPath $environmentFile) {
    if ($line -match '^([^#=][^=]*)=(.*)$') {
        $settings[$matches[1].Trim()] = $matches[2]
    }
}
$settings["CONTENT_GENERATOR"] = "ark"
$settings["ARK_CONTENT_MODEL"] = $selectedModel

$environmentContent = ($settings.GetEnumerator() | ForEach-Object { "$($_.Key)=$($_.Value)" }) -join "`n"
[IO.File]::WriteAllText($apiKeyFile, $apiKey.Trim(), $utf8NoBom)
[IO.File]::WriteAllText($environmentFile, $environmentContent + "`n", $utf8NoBom)

Write-Host "Ark summary configuration updated. Existing RTC and voice credentials were not changed." -ForegroundColor Green
Write-Host "Next: .\deploy\local-rtc\start.ps1" -ForegroundColor Green