#!/bin/bash
set -e

echo "=============================="
echo "   FFmpeg 跨平台安装脚本"
echo "=============================="
echo

OS=$(uname -s)

if [[ "$OS" == "Darwin" ]]; then
    echo "检测到 macOS 系统"
    if ! command -v brew &>/dev/null; then
        echo "未检测到 Homebrew，正在安装..."
        /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
    fi
    echo "使用 Homebrew 安装 FFmpeg..."
    brew install ffmpeg
elif [[ "$OS" == "Linux" ]]; then
    echo "检测到 Linux 系统"
    if command -v apt &>/dev/null; then
        sudo apt update
        sudo apt install -y ffmpeg
    elif command -v dnf &>/dev/null; then
        sudo dnf install -y ffmpeg
    elif command -v pacman &>/dev/null; then
        sudo pacman -S --noconfirm ffmpeg
    else
        echo "未检测到常见包管理器，请手动安装 FFmpeg。"
        exit 1
    fi
else
    echo "暂不支持的系统: $OS"
    exit 1
fi

echo
echo "安装完成，版本信息："
ffmpeg -version | head -n 1