#!/bin/bash

red(){
  echo -e "\033[31m$1\033[0m"
}

green(){
  echo -e "\033[32m$1\033[0m"
}


# 动态安装软件包
install_package() {
  local package_name=$1
  if command -v "$package_name" &> /dev/null; then
    echo "$package_name 已安装, 跳过."
    return 0
  fi

  echo "安装 $package_name..."
  package_manager=$(get_package_manager)
  if [ "$package_manager" == "apt-get" ]; then
    sudo apt-get update
    sudo apt-get install -y "$package_name"
  elif [ "$package_manager" == "yum" ]; then
    sudo yum install -y "$package_name"
  else
    echo "未知的包管理器, 请手动安装 $package_name."
    return 1
  fi
}

# 获取系统包管理器
get_package_manager(){
  if command -v apt-get &> /dev/null; then
    echo "apt-get"
  elif command -v yum &> /dev/null; then
    echo "yum"
  else
    echo "未知的系统包管理器"
    return 1  # 返回错误状态码
  fi
}

# 检查 jq 是否已安装
check_jq() {
    if command -v jq >/dev/null 2>&1; then
        return 0
    else
        echo "jq 未安装"
        return 1
    fi
}

# 检查 Docker 是否已安装
check_docker() {
    if command -v docker >/dev/null 2>&1; then
        return 0
    else
        echo "Docker 未安装"
        return 1
    fi
}

# 检查 docker-compose 是否已安装
check_docker_compose() {
    if command -v docker-compose >/dev/null 2>&1; then
        return 0
    elif docker compose version >/dev/null 2>&1; then  ## Docker 内置 compose 已安装
        return 0
    else
        echo "docker-compose 未安装"
        return 1
    fi
}

# 安装docker
install_docker(){
   echo 安装docker...
   curl -fsSL https://get.docker.com | bash -s docker
}

# 安装docker-compose
install_docker_compose(){
    echo 安装docker-compose...
    wget -O /usr/local/bin/docker-compose https://github.com/docker/compose/releases/download/v2.29.0/docker-compose-linux-x86_64
    chmod +x /usr/local/bin/docker-compose
}



# 生成密码
gen_password() {
    local pass_length=$1  # 密码长度作为第一个参数
    local chars='[:alnum:]'  # 只允许出现字母和数字

    local rand
    rand=$(< /dev/urandom tr -dc "$chars" | head -c "$pass_length")

    echo "$rand"
}

# URL编码
url_encode() {
    local str="$1"
    local encoded=""
    local i char hex

    for ((i = 0; i < ${#str}; i++)); do
        char="${str:$i:1}"
        case "$char" in
            [a-zA-Z0-9.~_-]) encoded+="$char" ;;
            *) 
                printf -v hex '%02X' "'$char"
                encoded+="%$hex"
                ;;
        esac
    done
    echo "$encoded"
}

# 检查tuic配置文件
check_config_file(){
    local script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/../"  # 脚本文件夹绝对路径
    local config_file="$script_dir/../config/config.json"

    # 检查配置文件是否存在
    if [ ! -e  "$config_file" ]; then
        echo "配置文件不存在, 请先生成配置文件."
        exit 1
    fi

    # 检查配置文件是否为有效的JSON格式    
    if ! jq '.' "$config_file" >/dev/null 2>&1; then
        echo "配置文件不是有效的JSON格式, 请重新生成配置文件."
        exit 1
    fi
}

restart_docker() {
    local script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/../"  # 脚本文件夹绝对路径

    # 如果容器未运行，提示启动
    local running_count=$(docker-compose -f $script_dir/../docker-compose.yml ps -q | wc -l)
    if [ "$running_count" -eq 0 ]; then
      read -p "容器未启动，是否启动容器？(y/n): " choice
      case "$choice" in
        Y|y)
          docker-compose -f $script_dir/../docker-compose.yml up -d
          return
          ;;
        *)
          echo "已取消启动"
          return
          ;;
      esac
    fi

    echo "正在重启容器..."
    docker-compose -f  $script_dir/../docker-compose.yml down
    docker-compose -f  $script_dir/../docker-compose.yml up -d
}