#Requires -Version 5.1
# runner.ps1 — background entry point; called by the scheduled task.
# All output goes to the log file only (no console window).

$ErrorActionPreference = 'Stop'

$script:InternalRoot = $PSScriptRoot   # runner.ps1 lives in internal\

# ── Load shared libraries ─────────────────────────────────────────────────────
. (Join-Path $InternalRoot 'lib\Logging.ps1')
. (Join-Path $InternalRoot 'lib\NetworkUtils.ps1')
. (Join-Path $InternalRoot 'lib\ToastHelper.ps1')
. (Join-Path $InternalRoot 'lib\Config.ps1')

Write-Log -Level Info -Message '────── Runner started ──────' -Feature 'Runner'

# ── Load config and state ─────────────────────────────────────────────────────
$config = Get-Config
$state  = Get-State

# ── Run each enabled feature ──────────────────────────────────────────────────
$featuresDir = Join-Path $InternalRoot 'features'

foreach ($featureKey in $config.features.Keys) {
    $featureConfig = $config.features[$featureKey]

    if (-not $featureConfig['enabled']) {
        continue
    }

    $featureFile = Join-Path $featuresDir "$featureKey.ps1"
    if (-not (Test-Path $featureFile)) {
        Write-Log -Level Warn `
            -Message "Feature '$featureKey' is enabled but '$featureFile' was not found. Skipping." `
            -Feature 'Runner'
        continue
    }

    try {
        # Dot-source the feature — defines $FeatureMeta and Invoke-Feature in local scope.
        # Each iteration overwrites Invoke-Feature, which is fine because we call it immediately.
        $ErrorActionPreference = 'Stop'
        . $featureFile

        $featureState   = if ($state.ContainsKey($featureKey)) { $state[$featureKey] } else { @{} }
        $updatedState   = Invoke-Feature -Config $featureConfig -State $featureState

        if ($null -ne $updatedState) {
            $state[$featureKey] = $updatedState
        }

        Write-Log -Level Info -Message "Feature '$featureKey' completed." -Feature 'Runner'
    }
    catch {
        Write-Log -Level Error `
            -Message "Feature '$featureKey' threw an unhandled exception: $_" `
            -Feature 'Runner'
        # Continue to the next feature regardless of this failure
    }
    finally {
        $ErrorActionPreference = 'Stop'
    }
}

# ── Persist updated state ─────────────────────────────────────────────────────
Save-State $state

Write-Log -Level Info -Message '────── Runner finished ──────' -Feature 'Runner'