#!/bin/bash
: '
 @vendor    Chorke Academia, Inc.
 @web       https://cdn.chorke.org/docs/academia
 @version   1.0.00
 @since     1.0.00
'

:<<EOF
sudo apt -qq update;\
export MINIO_HOME=/var/minio;\
export MINIO_ADMIN_PASSWORD='academia';\
bash <(curl -s 'https://cdn.chorke.org/exec/cli/bash/install/minio/2022-07-30.sh.txt')
EOF


function validate(){
    if [[ "${MINIO_ADMIN_PASSWORD}/env/is/empty" == '/env/is/empty' ]];then export MINIO_ADMIN_PASSWORD='academia';fi
    if [[ "${MINIO_HOME}/env/is/empty" == '/env/is/empty' ]];then export MINIO_HOME=/var/minio;fi
    if [ -d "${MINIO_HOME}" ]||[ -f '/etc/systemd/system/minio.service' ];then
        printf '\nminio \033[0;31malready installed \033[0m:)\n'
        exit 0
    fi
}

function download(){
    if [ ! -d "${MINIO_HOME}" ];then sudo mkdir -p ${MINIO_HOME}/{bin,etc,run,var};fi
    if [ ! -d "${MINIO_HOME}/var/data" ];then sudo mkdir -p ${MINIO_HOME}/var/data;fi
    sudo wget -cq https://dl.min.io/server/minio/release/linux-amd64/minio -P ${MINIO_HOME}/bin/
    sudo chmod +x ${MINIO_HOME}/bin/minio
}

function approve(){
    sudo addgroup --quiet --system minio
    sudo adduser  --quiet --system --ingroup minio --no-create-home --disabled-password minio
    sudo chown -R minio:minio ${MINIO_HOME}
}

function install(){
    sudo tee -a ${MINIO_HOME}/etc/.env >/dev/null <<EOF
MINIO_OPTS="--address :9000 --console-address :9001"
MINIO_VOLUMES="${MINIO_HOME}/var/data"
MINIO_ROOT_USER=admin
MINIO_ROOT_PASSWORD=${MINIO_ADMIN_PASSWORD}
MINIO_CONFIG_ENV_FILE=${MINIO_HOME}/etc/.env
EOF

    sudo chown -R minio:minio ${MINIO_HOME}
    sudo tee -a /etc/systemd/system/minio.service >/dev/null <<EOF
[Unit]
Description=MinIO
Documentation=https://docs.min.io
Wants=network-online.target
After=network-online.target
AssertFileIsExecutable=${MINIO_HOME}/bin/minio

[Service]
WorkingDirectory=${MINIO_HOME}/

User=minio
Group=minio
ProtectProc=invisible

EnvironmentFile=${MINIO_HOME}/etc/.env
ExecStartPre=/bin/bash -c "if [ -z \"\${MINIO_VOLUMES}\" ]; then echo \"Variable MINIO_VOLUMES not set in ${MINIO_HOME}/etc/.env\"; exit 1; fi"
ExecStartPost=/bin/bash -c "echo \$MAINPID > ${MINIO_HOME}/run/minio.pid"
ExecStart=${MINIO_HOME}/bin/minio server \$MINIO_OPTS \$MINIO_VOLUMES
ExecStop=/bin/kill -s TERM \$MAINPID
PIDFile=${MINIO_HOME}/run/minio.pid

Restart=always
LimitNOFILE=1048576
TasksMax=infinity
TimeoutStopSec=infinity

[Install]
WantedBy=multi-user.target
EOF
}

function launch(){
    sudo systemctl daemon-reload
    sudo systemctl enable minio.service
    sudo systemctl start  minio.service
    sudo systemctl status minio.service
}

function init(){
    validate
    download
    approve
    install
    launch
}

init