#!/bin/bash

# Gitea 快速安装配置脚本
# 前提条件：
# 1. PostgreSQL 已安装，用户 postgres 密码 hsc1825713423
# 2. Redis 已安装，密码 hsc1825713423
# 3. 安装目录：/data/gitea

# 检查是否为root用户
if [ "$(id -u)" -ne 0 ]; then
	    echo "请使用root用户运行此脚本!"
	        exit 1
	fi

	# 配置参数
	GITEA_VERSION="1.21.0"
	GITEA_USER="gitea"
	GITEA_HOME="/data/gitea"
	GITEA_CONFIG="$GITEA_HOME/custom/conf/app.ini"

	# 创建用户和目录结构
	echo "创建Gitea用户和目录结构..."
	useradd -d $GITEA_HOME -m -s /bin/bash $GITEA_USER
	mkdir -p $GITEA_HOME/{custom,data,log}
	chown -R $GITEA_USER:$GITEA_USER $GITEA_HOME

	# 下载Gitea
	echo "下载Gitea $GITEA_VERSION..."
	wget -O /tmp/gitea https://dl.gitea.io/gitea/$GITEA_VERSION/gitea-$GITEA_VERSION-linux-amd64
	chmod +x /tmp/gitea
	mv /tmp/gitea $GITEA_HOME/gitea
	chown $GITEA_USER:$GITEA_USER $GITEA_HOME/gitea

	# 创建配置文件
	echo "创建Gitea配置文件..."
	cat > $GITEA_CONFIG <<EOF
[server]
APP_DATA_PATH    = $GITEA_HOME/data
HTTP_PORT        = 3000
ROOT_URL        = http://$(hostname):3000/
DISABLE_SSH      = false
SSH_PORT         = 22
DOMAIN           = $(hostname)
LFS_START_SERVER = true
OFFLINE_MODE     = false

[database]
DB_TYPE  = postgres
HOST     = 127.0.0.1:5432
NAME     = gitea
USER     = gitea
PASSWD   = hsc1825713423
SSL_MODE = disable

[redis]
ENABLED  = true
HOST     = 127.0.0.1:6379
PASSWORD = hsc1825713423
DB       = 0

[session]
PROVIDER = redis

[cache]
ADAPTER = redis

[queue]
TYPE = redis

[log]
ROOT_PATH = $GITEA_HOME/log
MODE      = file
LEVEL     = Info

[security]
INSTALL_LOCK = true
SECRET_KEY   = $(head -c 16 /dev/urandom | sha256sum | head -c 64)
EOF

# 设置权限
chown $GITEA_USER:$GITEA_USER $GITEA_CONFIG
chmod 640 $GITEA_CONFIG

# 创建systemd服务
echo "创建systemd服务..."
cat > /etc/systemd/system/gitea.service <<EOF
[Unit]
Description=Gitea (Git with a cup of tea)
After=syslog.target
After=network.target
After=postgresql.service
After=redis.service

[Service]
RestartSec=2s
Type=simple
User=$GITEA_USER
Group=$GITEA_USER
WorkingDirectory=$GITEA_HOME
ExecStart=$GITEA_HOME/gitea web --config $GITEA_CONFIG
Restart=always
Environment=USER=$GITEA_USER HOME=$GITEA_HOME

[Install]
WantedBy=multi-user.target
EOF

# 启用并启动服务
systemctl daemon-reload
systemctl enable --now gitea

# 输出信息
echo "Gitea 安装完成!"
echo "访问地址: http://$(hostname -I | awk '{print $1}'):3000"
echo "安装目录: $GITEA_HOME"
echo "配置文件: $GITEA_CONFIG"
echo "管理命令: systemctl [start|stop|restart|status] gitea"