#!/bin/sh
#wget https://gist.github.com/aaronhenshaw/6f88c6f882b295238c8953043ac0f9e0/raw/7523d7bdb803041c0bcf7e00d936a6c260bbcfb7/install-bminer.sh; chmod +x install-bminer.sh; sudo ./install-bminer.sh 
#sudo ./install-bminer.sh aaron%2Btest%40website.co workerName

: ${1?Need a value for miner address}
: ${2?Need a value for worker name}

MINERUSER=$1
MINERWORKER=$2

sudo systemctl stop grin-monitor
sudo systemctl stop grin-miner
sudo systemctl disable grin-monitor
sudo systemctl disable grin-miner   

cd ~/
mkdir bminer
cd bminer
wget https://www.bminercontent.com/releases/bminer-v15.5.1-4583b73-amd64.tar.xz
tar -xvf bminer-v15.5.1-4583b73-amd64.tar.xz
rm bminer-v15.5.1-4583b73-amd64.tar.xz
mv bminer-v15.5.1-4583b73 bminer
cd bminer

FILE=run-grin-miner-31.sh
SERVICE_FILE=bminer.service
MONITOR_SERVICE_FILE=bmonitor.service
MONITOR_SCRIPT_FILE=bmonitor.sh

cat <<EOM >$FILE  
#!/bin/sh

USERNAME=${MINERUSER}%2F${MINERWORKER}
POOL=us-east-stratum.grinmint.com:3416
SCHEME=cuckatoo31

./bminer -uri \$SCHEME://\$USERNAME@\$POOL -api 127.0.0.1:1880
EOM

cat <<EOM >$SERVICE_FILE
[Unit]
Description = Grin Miner (bminer) Service
After = syslog.target network.target

[Service]
User=grinminer
Group=grinminer
Type=simple
KillMode=process
Restart=always
RestartSec=20
ExecStart=/opt/bminer/run-grin-miner-31.sh
WorkingDirectory=/opt/bminer

[Install]
WantedBy=multi-user.target 
EOM

cat <<EOM >$MONITOR_SERVICE_FILE
[Unit]
Description = Grin Monitor (bminer) Service
After = bminer.service

[Service]
User=grinminer
Group=grinminer
Type=simple
KillMode=mixed
Restart=always
RestartSec=20
ExecStart=/opt/bminer/bmonitor.sh
WorkingDirectory=/opt/bminer

[Install]
WantedBy=multi-user.target
EOM

cat <<EOM >$MONITOR_SCRIPT_FILE
#!/bin/bash
  
COUNTER=0

journalctl -u bminer.service -f -n 0 | \
while read line ; do
        echo "\$line" | grep "] Accepted share"
        if [ \$? = 0 ]
        then
                let COUNTER=0
        else
                let COUNTER=COUNTER+1
        fi
        echo "\$line" | grep "Irrecoverable errors"
        if [ \$? = 0 ]
        then
                echo "bminer encountered a critical error, restarting"
                sudo reboot
        fi
        if (( COUNTER > 200 ))
        then
                echo "Rebooting... haven't mined in a little while"
                sudo reboot
        fi
done
EOM


sudo mkdir /opt/bminer
sudo cp ~/bminer/bminer/* /opt/bminer/ -R

chmod +x /opt/bminer/run-grin-miner-31.sh
chmod +x /opt/bminer/bmonitor.sh

sudo cp ~/bminer/bminer/bminer.service /etc/systemd/system/bminer.service
sudo cp ~/bminer/bminer/bmonitor.service /etc/systemd/system/bmonitor.service

sudo chown grinminer:grinminer /opt/bminer
sudo chown grinminer:grinminer /opt/bminer/* -R

sudo systemctl daemon-reload
sudo systemctl enable bminer

sudo rm grin-miner.log

sudo systemctl start bminer
sudo systemctl start bmonitor
journalctl -u bminer -f