#!/bin/bash

# Gitea卸载脚本
# 作者：AI助手
# 日期：2025-03-13

set -e

echo "===== Gitea卸载脚本 ====="
echo "此脚本将卸载Gitea服务及其相关配置"
echo "警告：此操作将删除Gitea的所有数据，请确保已备份重要数据"

# 检查是否有root权限
if [ "$(id -u)" != "0" ]; then
   echo "此脚本需要root权限运行" 1>&2
   exit 1
fi

# 检查Nginx容器
NGINX_CONTAINER=$(docker ps | grep nginx | head -1 | awk '{print $1}')
if [ -z "$NGINX_CONTAINER" ]; then
    echo "警告: Nginx容器未找到，部分卸载步骤可能无法完成" 1>&2
else
    NGINX_CONTAINER_NAME=$(docker inspect --format='{{.Name}}' $NGINX_CONTAINER | sed 's/\///')
    echo "找到Nginx容器: $NGINX_CONTAINER_NAME"
    
    # 检查Nginx容器的挂载点
    echo "检查Nginx容器的挂载点..."
    SSL_MOUNT=$(docker inspect -f '{{range .Mounts}}{{if eq .Destination "/ssl"}}{{.Source}}{{end}}{{end}}' $NGINX_CONTAINER)
    CONF_MOUNT=$(docker inspect -f '{{range .Mounts}}{{if eq .Destination "/etc/nginx/conf.d"}}{{.Source}}{{end}}{{end}}' $NGINX_CONTAINER)
    
    if [ -z "$SSL_MOUNT" ]; then
        echo "警告: 未找到Nginx容器的SSL挂载点，将使用默认路径"
        SSL_MOUNT="/opt/dnmp/services/nginx/ssl"
    else
        echo "找到Nginx SSL挂载点: $SSL_MOUNT"
    fi
    
    if [ -z "$CONF_MOUNT" ]; then
        echo "警告: 未找到Nginx容器的配置挂载点，将使用默认路径"
        CONF_MOUNT="/opt/dnmp/services/nginx/conf.d"
    else
        echo "找到Nginx配置挂载点: $CONF_MOUNT"
    fi
fi

# 设置变量
DOMAIN="gitea.mzh.one"
NGINX_CONF_DIR="${CONF_MOUNT:-/opt/dnmp/services/nginx/conf.d}"
SSL_DIR="${SSL_MOUNT:-/opt/dnmp/services/nginx/ssl}/$DOMAIN"

# 询问安装目录
INSTALL_DIR="/opt/gitea"
read -p "请输入Gitea的安装目录 [默认: $INSTALL_DIR]: " INPUT_INSTALL_DIR
if [ ! -z "$INPUT_INSTALL_DIR" ]; then
    INSTALL_DIR=$INPUT_INSTALL_DIR
fi

# 检查安装目录是否存在
if [ ! -d "$INSTALL_DIR" ]; then
    echo "错误: 安装目录 $INSTALL_DIR 不存在" 1>&2
    exit 1
fi

# 确认卸载
read -p "确定要卸载Gitea吗？此操作将删除所有数据 [y/N]: " CONFIRM
if [ "$CONFIRM" != "y" ] && [ "$CONFIRM" != "Y" ]; then
    echo "卸载已取消"
    exit 0
fi

# 停止并删除容器
echo "停止并删除Gitea容器..."
cd $INSTALL_DIR
docker-compose down

# 删除Nginx配置
echo "删除Nginx配置..."
if [ -f "$NGINX_CONF_DIR/$DOMAIN.conf" ]; then
    rm -f "$NGINX_CONF_DIR/$DOMAIN.conf"
    
    # 重新加载Nginx配置
    if [ ! -z "$NGINX_CONTAINER" ]; then
        echo "重新加载Nginx配置..."
        docker exec -it $NGINX_CONTAINER nginx -s reload
    else
        echo "警告: Nginx容器未找到，请手动重新加载Nginx配置" 1>&2
    fi
else
    echo "警告: Nginx配置文件不存在: $NGINX_CONF_DIR/$DOMAIN.conf"
fi

# 询问是否删除数据库
read -p "是否删除Gitea数据库？[y/N]: " DELETE_DB
if [ "$DELETE_DB" == "y" ] || [ "$DELETE_DB" == "Y" ]; then
    echo "删除Gitea数据库..."
    MYSQL_CONTAINER=$(docker ps | grep -E 'mysql|mariadb' | head -1 | awk '{print $1}')
    if [ ! -z "$MYSQL_CONTAINER" ]; then
        MYSQL_CONTAINER_NAME=$(docker inspect --format='{{.Name}}' $MYSQL_CONTAINER | sed 's/\///')
        echo "找到MySQL容器: $MYSQL_CONTAINER_NAME"
        read -sp "请输入MySQL root密码: " MYSQL_ROOT_PASSWORD
        echo ""
        docker exec -i $MYSQL_CONTAINER mysql -uroot -p$MYSQL_ROOT_PASSWORD <<EOF
DROP DATABASE IF EXISTS gitea;
DROP USER IF EXISTS 'gitea'@'%';
FLUSH PRIVILEGES;
EOF
    else
        echo "警告: MySQL容器未找到，请手动删除Gitea数据库" 1>&2
    fi
fi

# 询问是否删除SSL证书
read -p "是否删除SSL证书？[y/N]: " DELETE_CERT
if [ "$DELETE_CERT" == "y" ] || [ "$DELETE_CERT" == "Y" ]; then
    echo "删除SSL证书..."
    if [ -d "$SSL_DIR" ]; then
        rm -rf "$SSL_DIR"
        echo "SSL证书目录已删除: $SSL_DIR"
    else
        echo "警告: SSL证书目录不存在: $SSL_DIR"
    fi
    
    # 询问是否删除Let's Encrypt证书
    read -p "是否同时删除Let's Encrypt证书？[y/N]: " DELETE_LE_CERT
    if [ "$DELETE_LE_CERT" == "y" ] || [ "$DELETE_LE_CERT" == "Y" ]; then
        certbot delete --cert-name $DOMAIN
    fi
fi

# 询问是否删除安装目录
read -p "是否删除安装目录 $INSTALL_DIR？[y/N]: " DELETE_DIR
if [ "$DELETE_DIR" == "y" ] || [ "$DELETE_DIR" == "Y" ]; then
    echo "删除安装目录..."
    rm -rf $INSTALL_DIR
fi

echo "===== Gitea卸载完成 ====="