#!/bin/bash

# 检查并创建nginx用户
if ! id -u nginx >/dev/null 2>&1; then
    echo "创建nginx用户..."
    sudo useradd -r -s /sbin/nologin nginx
fi

# 创建 conf.d 目录（如果不存在）
sudo mkdir -p /etc/nginx/conf.d

# 备份并覆盖 nginx.conf 文件
sudo cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak
sudo cp nginx.conf /etc/nginx/

# 备份并覆盖 conf.d 目录下的所有 .conf 文件
for conf in conf.d/*.conf; do
    filename=$(basename "$conf")
    sudo cp "/etc/nginx/conf.d/$filename" "/etc/nginx/conf.d/${filename}.bak" 2>/dev/null || true
    sudo cp "$conf" /etc/nginx/conf.d/
done

# 测试并重载配置
if sudo nginx -t; then
    sudo systemctl reload nginx
    echo "配置已生效，HTTPS已启用"
else
    echo "配置测试失败，已恢复备份"
    # 恢复 nginx.conf 备份
    sudo cp /etc/nginx/nginx.conf.bak /etc/nginx/nginx.conf
    # 恢复 conf.d 目录下的所有 .conf 文件备份
    for conf in conf.d/*.conf; do
        filename=$(basename "$conf")
        sudo mv -f "/etc/nginx/conf.d/${filename}.bak" "/etc/nginx/conf.d/$filename" 2>/dev/null || true
    done
fi