<#
Add the repository's local ffmpeg 'bin' folder to the PATH for the current PowerShell session.

Usage:
  .\add_ffmpeg_path.ps1

This does not modify the system PATH permanently; it only updates PATH for the running session.
#>

try {
    $scriptDir = Split-Path -Parent $MyInvocation.MyCommand.Definition
    # repo root is one level up from scripts folder
    $repoRoot = Resolve-Path (Join-Path $scriptDir "..")
    $ffmpegBin = Join-Path $repoRoot "ffmpeg-8.0-essentials_build\bin"

    if (Test-Path $ffmpegBin) {
        # Prepend so local binary is preferred
        $env:PATH = "$ffmpegBin;$env:PATH"
        Write-Host "Added local ffmpeg bin to PATH: $ffmpegBin"
        exit 0
    } else {
        Write-Error "ffmpeg bin not found at: $ffmpegBin"
        exit 1
    }
} catch {
    Write-Error "Failed to add ffmpeg to PATH: $_"
    exit 2
}