# Runs app.py under a supervisor loop so the OAK-1 camera app survives
# native crashes (e.g. DepthAI/USB device faults) that kill the Python
# process outright. This window stays open and keeps restarting the app;
# closing THIS window is the only thing that stops it for good.
#
# Usage: right-click -> "Run with PowerShell", or from a terminal:
#   powershell -ExecutionPolicy Bypass -File run_supervised.ps1

$ErrorActionPreference = "Continue"
Set-Location -Path $PSScriptRoot

$python = Join-Path $PSScriptRoot ".venv\Scripts\python.exe"
$logDir = Join-Path $PSScriptRoot "logs"
New-Item -ItemType Directory -Force -Path $logDir | Out-Null

$maxRestartsPerWindow = 10
$restartWindowSeconds = 300
$restartTimestamps = @()

Write-Host "OAK-1 Camera Playground - Supervisor" -ForegroundColor Cyan
Write-Host "Close THIS window to stop the app. It will auto-restart on crash." -ForegroundColor Cyan
Write-Host ""

while ($true) {
    $timestamp = Get-Date -Format "yyyy-MM-dd_HH-mm-ss"
    $logFile = Join-Path $logDir "app_$timestamp.log"

    Write-Host "[$timestamp] Starting app.py (logging to $logFile)..." -ForegroundColor Green

    # Route through cmd.exe so stderr merges into plain text instead of
    # PowerShell wrapping each line as a NativeCommandError.
    & cmd.exe /c "`"$python`" app.py 2>&1" | Tee-Object -FilePath $logFile
    $exitCode = $LASTEXITCODE

    $now = Get-Date
    Write-Host "[$($now.ToString('yyyy-MM-dd_HH-mm-ss'))] app.py exited (code $exitCode)." -ForegroundColor Yellow

    $restartTimestamps = @($restartTimestamps | Where-Object { ($now - $_).TotalSeconds -lt $restartWindowSeconds })
    $restartTimestamps += $now

    if ($restartTimestamps.Count -gt $maxRestartsPerWindow) {
        Write-Host "Too many restarts ($($restartTimestamps.Count)) in the last $restartWindowSeconds seconds." -ForegroundColor Red
        Write-Host "Something is persistently wrong (device disconnected? driver issue?). Pausing 60s before trying again." -ForegroundColor Red
        Start-Sleep -Seconds 60
        $restartTimestamps = @()
    } else {
        Start-Sleep -Seconds 2
    }
}