chcp 65001
# 一键安装 FFMPEG 的 PowerShell 脚本

clear-host
$mirrorChoice = Read-Host "是否使用镜像站下载 FFMPEG？(y/n)"
if ($mirrorChoice -eq 'y') {
    $downloadUrl = "https://ff.rryth.com/ff.zip"
} else {
    $downloadUrl = "https://www.gyan.dev/ffmpeg/builds/ffmpeg-release-essentials.zip"
}

$installDir = "C:FFMPEG"
$downloadDest = "$installDirfmpeg.zip"

# 创建安装目录
if (Test-Path $installDir) {
    Remove-Item -Recurse -Force $installDir
}
New-Item -Path $installDir -ItemType Directory | Out-Null

# 下载 FFMPEG
Invoke-WebRequest -Uri $downloadUrl -OutFile $downloadDest

# 解压缩
Expand-Archive -Path $downloadDest -DestinationPath $installDir

# 移动 ffmpeg.exe
Move-Item -Path "$installDirinfmpeg.exe" -Destination "$installDirfmpeg.exe"

# 询问是否添加到环境变量
$addToPath = Read-Host "是否将 FFMPEG 添加到环境变量？(y/n)"
if ($addToPath -eq 'y') {
    $envPath = [System.Environment]::GetEnvironmentVariable("Path", "User")
    if (-not $envPath.EndsWith(";")) {
        $envPath += ";"
    }
    [System.Environment]::SetEnvironmentVariable("Path", "$envPath$installDir", "User")
    Write-Host "FFMPEG 已添加到环境变量！"
} else {
    Write-Host "FFMPEG 未添加到环境变量。"
}

Write-Host "FFMPEG 安装完成！"