start.ps1

# start.ps1 - Local Offline Stream Server for VLC
# Run this script to automatically fix wrong extensions, generate the playlist, and serve the music files locally.

# 1. Detect and fix incorrect file extensions in the mp3files folder
$MusicDir = Join-Path $PSScriptRoot "mp3files"

if (Test-Path $MusicDir) {
    Write-Host "Checking for incorrect file extensions..." -ForegroundColor Cyan
    $Files = Get-ChildItem -Path $MusicDir -File
    $RenamedCount = 0

    foreach ($File in $Files) {
        $FilePath = $File.FullName
        
        # Open file stream and read the first 12 bytes
        try {
            $Stream = [System.IO.File]::OpenRead($FilePath)
            $Buffer = New-Object byte[] 12
            $BytesRead = $Stream.Read($Buffer, 0, 12)
            $Stream.Close()
        }
        catch {
            continue
        }

        if ($BytesRead -lt 8) {
            continue
        }

        # Check for 'ftyp' at offset 4 (MPEG-4 container: M4A, MP4)
        $IsM4A = $Buffer[4] -eq 0x66 -and $Buffer[5] -eq 0x74 -and $Buffer[6] -eq 0x79 -and $Buffer[7] -eq 0x70
        # Check for 'ID3' at offset 0 (MP3)
        $IsID3 = $Buffer[0] -eq 0x49 -and $Buffer[1] -eq 0x44 -and $Buffer[2] -eq 0x33

        $CurrentExt = $File.Extension.ToLower()
        $NewExt = $null

        if ($IsM4A -and $CurrentExt -ne ".m4a") {
            $NewExt = ".m4a"
        } elseif ($IsID3 -and $CurrentExt -ne ".mp3") {
            $NewExt = ".mp3"
        }

        if ($NewExt) {
            $NewName = [System.IO.Path]::ChangeExtension($File.Name, $NewExt)
            Write-Host "Fixing extension: '$($File.Name)' -> '$NewName'" -ForegroundColor Yellow
            try {
                Rename-Item -LiteralPath $FilePath -NewName $NewName -Force
                $RenamedCount++
            }
            catch {
                Write-Error "Failed to rename $($File.Name): $_"
            }
        }
    }
    if ($RenamedCount -gt 0) {
        Write-Host "Renamed $RenamedCount file(s) to their true extension." -ForegroundColor Green
    } else {
        Write-Host "All extensions are correct." -ForegroundColor Green
    }
}

# 2. Regenerate the playlist
Write-Host "`nRegenerating playlist..." -ForegroundColor Cyan
python generate_playlist.py

# 3. Detect Local Network IPv4 Address
$LocalIP = (Get-NetIPAddress -AddressFamily IPv4 | Where-Object { $_.IPAddress -notlike "127.*" -and $_.IPAddress -notlike "169.254.*" } | Select-Object -First 1).IPAddress
if (-not $LocalIP) {
    $LocalIP = "127.0.0.1"
}

$Port = 8000
$LocalUrl = "http://localhost:$Port/playlist.m3u"
$NetworkUrl = "http://$($LocalIP):$Port/playlist.m3u"

Write-Host "`n==================================================" -ForegroundColor Green
Write-Host "🎵 LOCAL OFFLINE STREAM SERVER STARTED 🎵" -ForegroundColor Green
Write-Host "==================================================" -ForegroundColor Green
Write-Host "Your music server is running offline."
Write-Host ""
Write-Host "👉 To play locally on this PC (completely offline, no server needed):" -ForegroundColor Yellow
Write-Host "   Double-click 'playlist.m3u' or open it directly in VLC."
Write-Host ""
Write-Host "👉 To stream to other devices (Phone, Tablet, PC) on your local Wi-Fi:" -ForegroundColor Yellow
Write-Host "   1. Connect your device to the same Wi-Fi network."
Write-Host "   2. Open VLC on your device."
Write-Host "   3. Go to 'Stream' or 'Open Network Stream' and enter:"
Write-Host "      $NetworkUrl" -ForegroundColor Cyan
Write-Host ""
if ($RenamedCount -gt 0) {
    Write-Host "⚠️ IMPORTANT: You have renamed files. Don't forget to commit and push them" -ForegroundColor Yellow
    Write-Host "   to GitHub so your online cloud stream is updated!" -ForegroundColor Yellow
    Write-Host ""
}
Write-Host "Press Ctrl+C to stop the local web server."
Write-Host "==================================================`n"

# Start python's built-in web server
python -m http.server $Port