#!/bin/bash
export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:$PATH

: '
Copyright (C) 2022 - now  HaoZi Technology Co., Ltd.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.
'

source <(curl -f -s --connect-timeout 10 --retry 3 https://dl.cdn.haozi.net/panel/public.sh)
if [ $? -ne 0 ]; then
    echo "下载 public.sh 失败，请检查网络或稍后重试。"
    echo "Download public.sh failed, please check the network or try again later."
    exit 1
fi

channel=${1}
version=${2}
postgresql_path="${setup_path}/server/postgresql"
j=$(calculate_j)

# 安装依赖
if [ ${OS} == "rhel" ]; then
    dnf makecache -y
    dnf groupinstall "Development Tools" -y
    dnf install pkg-config make bison flex gettext zlib-devel readline-devel icu libicu libicu-devel libxml2-devel libxslt-devel openssl-devel systemd-devel -y
elif [ ${OS} == "debian" ] || [ ${OS} == "ubuntu" ]; then
    apt-get update
    apt-get install build-essential pkg-config make bison flex gettext zlib1g-dev libreadline-dev icu-devtools libicu-dev libxml2-dev libxslt-dev libssl-dev libsystemd-dev -y
else
    error "不支持的操作系统"
fi
if [ "$?" != "0" ]; then
    error "安装依赖软件失败"
fi

user_check=$(cat /etc/passwd | grep postgres)
if [ "${user_check}" == "" ]; then
    groupadd postgres
    useradd -g postgres postgres
fi

# 准备目录
rm -rf ${postgresql_path}
mkdir -p ${postgresql_path}
cd ${postgresql_path}

# 下载源码
wget -T 120 -t 3 -O ${postgresql_path}/postgresql-${version}.7z ${download_url}/postgresql/postgresql-${version}.7z
wget -T 20 -t 3 -O ${postgresql_path}/postgresql-${version}.7z.sha256 ${download_url}/postgresql/postgresql-${version}.7z.sha256

if ! sha256sum --status -c postgresql-${version}.7z.sha256; then
    rm -rf ${postgresql_path}
    error "PostgreSQL 校验失败"
fi

7z x postgresql-${version}.7z
rm -f postgresql-${version}.7z
rm -f postgresql-${version}.7z.sha256
mv postgresql-${version} src
chmod -R 700 src

# 编译
cd src
./configure --prefix=${postgresql_path} --enable-nls='zh_CN en' --with-icu --with-ssl=openssl --with-systemd --with-libxml --with-libxslt
if [ "$?" != "0" ]; then
    rm -rf ${postgresql_path}
    error "PostgreSQL 编译初始化失败"
fi
make "-j${j}"
if [ "$?" != "0" ]; then
    rm -rf ${postgresql_path}
    error "PostgreSQL 编译失败"
fi
make install
if [ "$?" != "0" ]; then
    rm -rf ${postgresql_path}
    error "PostgreSQL 安装失败"
fi

cd ${postgresql_path}
rm -rf ${postgresql_path}/src

# 配置
mkdir -p ${postgresql_path}/data
mkdir -p ${postgresql_path}/logs
chown -R postgres:postgres ${postgresql_path}
chmod -R 700 ${postgresql_path}

# 软链接
ln -sf ${postgresql_path}/bin/* /usr/bin/

mkdir -p /home/postgres
cd /home/postgres
if [ -f /home/postgres/.bash_profile ]; then
    echo "export PGHOME=${postgresql_path}" >>/home/postgres/.bash_profile
    echo "export PGDATA=${postgresql_path}/data" >>/home/postgres/.bash_profile
    echo "export PATH=${postgresql_path}/bin:\$PATH " >>/home/postgres/.bash_profile
    echo "MANPATH=$PGHOME/share/man:$MANPATH" >>/home/postgres/.bash_profile
    echo "LD_LIBRARY_PATH=$PGHOME/lib:$LD_LIBRARY_PATH" >>/home/postgres/.bash_profile
    source /home/postgres/.bash_profile
fi
if [ -f /home/postgres/.profile ]; then
    echo "export PGHOME=${postgresql_path}" >>/home/postgres/.profile
    echo "export PGDATA=${postgresql_path}/data" >>/home/postgres/.profile
    echo "export PATH=${postgresql_path}/bin:\$PATH " >>/home/postgres/.profile
    echo "MANPATH=$PGHOME/share/man:$MANPATH" >>/home/postgres/.profile
    echo "LD_LIBRARY_PATH=$PGHOME/lib:$LD_LIBRARY_PATH" >>/home/postgres/.profile
    source /home/postgres/.profile
fi

# 初始化
su - postgres -c "${postgresql_path}/bin/initdb -D ${postgresql_path}/data"
if [ "$?" != "0" ]; then
    rm -rf ${postgresql_path}
    error "PostgreSQL 初始化失败"
fi

# 配置慢查询日志
cat >>${postgresql_path}/data/postgresql.conf <<EOF
logging_collector = on
log_destination = 'stderr'
log_directory = '${postgresql_path}/logs'
log_filename = 'postgresql-%Y-%m-%d.log'
log_statement = all
log_min_duration_statement = 5000
EOF

# 配置认证
cat >>${postgresql_path}/data/pg_hba.conf <<EOF
host    all             all             all                     scram-sha-256
EOF

# 写入服务
cat >/etc/systemd/system/postgresql.service <<EOF
[Unit]
Description=PostgreSQL database server
Documentation=man:postgres(1)
After=network-online.target
Wants=network-online.target

[Service]
Type=notify
User=postgres
ExecStart=${postgresql_path}/bin/postgres -D ${postgresql_path}/data
ExecReload=/bin/kill -HUP \$MAINPID
KillMode=mixed
KillSignal=SIGINT
TimeoutSec=infinity
LimitNOFILE=500000
Restart=on-failure
RestartSec=5s

[Install]
WantedBy=multi-user.target
EOF

# 在 /etc/systemd/logind.conf 设置 RemoveIPC=no，否则会删除 /dev/shm 下的共享内存文件
check=$(cat /etc/systemd/logind.conf | grep '^RemoveIPC=no.*$')
if [ "${check}" == "" ]; then
    echo "RemoveIPC=no" >>/etc/systemd/logind.conf
    systemctl restart systemd-logind
fi

# 启动服务
systemctl daemon-reload
systemctl enable --now postgresql
if [ "$?" != "0" ]; then
    error "启动失败"
fi

panel-cli app write postgresql ${channel} ${version}
panel-cli database add-server --type=postgresql --name=local_postgresql --host=127.0.0.1 --port=5432

echo -e $HR
echo "安装完成"
echo -e $HR