# DeployCenter - Read user preferences
# Read-only: this module never modifies DeployCenter.ini.

function Read-DeployCenterConfig {
    [CmdletBinding()]
    param([Parameter(Mandatory=$true)][string]$ConfigPath)

    $config = @{
        Theme = 'Light'
        SourcePaths = '%DEPLOY_VOLUME%'
        VncPassword = ''
        WinRESizeMB = 1024
        UnattendAdminName = 'admin'
        UnattendAdminDisplayName = 'Local Administrator'
        UnattendAdminGroup = 'Administrators'
        UnattendAdminPasswordBase64 = ''
        UnattendSupportProvider = ''
        UnattendSupportURL = ''
        UnattendSupportAppURL = ''
        UnattendWallpaperPath = 'Assets\blorand.png'
        DriverRootPath = ''
        DriverUrls = @{ Lenovo = ''; Dell = ''; HP = ''; Microsoft = '' }
    }
    if (-not (Test-Path -LiteralPath $ConfigPath -PathType Leaf)) { return $config }

    $section = ''
    foreach ($line in (Get-Content -LiteralPath $ConfigPath -ErrorAction SilentlyContinue)) {
        $trimmed = $line.Trim()
        if (-not $trimmed -or $trimmed.StartsWith(';') -or $trimmed.StartsWith('#')) { continue }
        if ($trimmed -match '^\[(.+)\]$') { $section = $matches[1].Trim(); continue }
        if ($trimmed -notmatch '^([^=]+)=(.*)$') { continue }

        $key = $matches[1].Trim()
        $value = $matches[2].Trim()
        if ($section -ieq 'General' -and $key -ieq 'Theme' -and $value -match '^[A-Za-z0-9_-]+$') {
            $config.Theme = $value
        } elseif ($section -ieq 'Sources' -and $key -ieq 'Paths') {
            $config.SourcePaths = $value
        } elseif ($section -ieq 'UltraVNC' -and $key -ieq 'Password') {
            $config.VncPassword = $value
        } elseif ($section -ieq 'Partitioning' -and $key -ieq 'WinRESizeMB') {
            $sizeMB = 0
            if (-not [int]::TryParse($value, [ref]$sizeMB) -or $sizeMB -le 0) {
                throw "[Partitioning] WinRESizeMB must be a positive integer. Value received: '$value'."
            }
            $config.WinRESizeMB = $sizeMB
        } elseif ($section -ieq 'Unattend' -and $key -ieq 'AdminName') {
            $config.UnattendAdminName = $value
        } elseif ($section -ieq 'Unattend' -and $key -ieq 'AdminDisplayName') {
            $config.UnattendAdminDisplayName = $value
        } elseif ($section -ieq 'Unattend' -and $key -ieq 'AdminGroup') {
            $config.UnattendAdminGroup = $value
        } elseif ($section -ieq 'Unattend' -and $key -ieq 'AdminPasswordBase64') {
            $config.UnattendAdminPasswordBase64 = $value
        } elseif ($section -ieq 'Unattend' -and $key -ieq 'SupportProvider') {
            $config.UnattendSupportProvider = $value
        } elseif ($section -ieq 'Unattend' -and $key -ieq 'SupportURL') {
            $config.UnattendSupportURL = $value
        } elseif ($section -ieq 'Unattend' -and $key -ieq 'SupportAppURL') {
            $config.UnattendSupportAppURL = $value
        } elseif ($section -ieq 'Unattend' -and $key -ieq 'WallpaperPath') {
            $config.UnattendWallpaperPath = $value
        } elseif ($section -ieq 'Drivers' -and $key -ieq 'RootPath') {
            $config.DriverRootPath = $value
        } elseif ($section -ieq 'Drivers' -and $key -match '^(Lenovo|Dell|HP|Microsoft)URL$') {
            $config.DriverUrls[$matches[1]] = $value
        }
    }
    return $config
}

Export-ModuleMember -Function Read-DeployCenterConfig