#!/bin/bash  -i

cd ~

# Step 0: Welcome
echo "This script is made with ❤️ by 0xOzgur @ https://quilibrium.space "
echo "The script is prepared for Ubuntu machines. If you are using another operating system, please check the compatibility of the script."
echo "The script doesn't install GO or GrpCurl packages. If you want to install them please visit https://docs.quilibrium.space/installing-prerequisites page."
echo "⏳Enjoy and sit back while you are building your Quilibrium Node!"
echo "⏳Processing..."
sleep 10  # Add a 10-second delay

# Check if ceremonyclient service exists and stop it if it does
if sudo systemctl status ceremonyclient &> /dev/null; then
    echo "Ceremonyclient service found. Stopping..."
    sudo service ceremonyclient stop
    sleep 2  # Add a 2-second delay
fi

# Step 0: Increase Swap Space
if [ ! -d /swap ]; then
    echo "Increasing swap space..."
    sudo mkdir /swap
    sudo fallocate -l 16G /swap/swapfile
    sudo chmod 600 /swap/swapfile
    sudo mkswap /swap/swapfile
    sudo swapon /swap/swapfile
    echo '/swap/swapfile swap swap defaults 0 0' | sudo tee -a /etc/fstab
else
    echo "Swap space already exists, skipping swap increase..."
fi

# Step 1: Update and Upgrade the Machine
echo "Updating the machine"
echo "⏳Processing..."
sleep 2  # Add a 2-second delay
apt update
apt upgrade -y
apt install sudo -y
apt install git -y

# Step 2: Adjust network buffer sizes
echo "Adjusting network buffer sizes..."
if grep -q "^net.core.rmem_max=600000000$" /etc/sysctl.conf; then
  echo "net.core.rmem_max=600000000 found inside /etc/sysctl.conf, skipping..."
else
  echo -e "\n# Change made to increase buffer sizes for better network performance for ceremonyclient\nnet.core.rmem_max=600000000" | sudo tee -a /etc/sysctl.conf > /dev/null
fi
if grep -q "^net.core.wmem_max=600000000$" /etc/sysctl.conf; then
  echo "net.core.wmem_max=600000000 found inside /etc/sysctl.conf, skipping..."
else
  echo -e "\n# Change made to increase buffer sizes for better network performance for ceremonyclient\nnet.core.wmem_max=600000000" | sudo tee -a /etc/sysctl.conf > /dev/null
fi
sudo sysctl -p


# Installing Go 1.20.14
wget https://go.dev/dl/go1.22.4.linux-amd64.tar.gz
sudo tar -xvf go1.22.4.linux-amd64.tar.gz || { echo "Failed to extract Go! Exiting..."; exit_message; exit 1; }
sudo mv go /usr/local || { echo "Failed to move go! Exiting..."; exit_message; exit 1; }
sudo rm go1.22.4.linux-amd64.tar.gz || { echo "Failed to remove downloaded archive! Exiting..."; exit_message; exit 1; }


# Step 4: Set Go environment variables
echo "⏳Setting Go environment variables..."
sleep 5  # Add a 5-second delay

# Check if GOROOT is already set
if grep -q 'GOROOT=/usr/local/go' ~/.bashrc; then
    echo "GOROOT already set in ~/.bashrc."
else
    echo 'GOROOT=/usr/local/go' >> ~/.bashrc
    echo "GOROOT set in ~/.bashrc."
fi

# Check if GOPATH is already set
if grep -q "GOPATH=$HOME/go" ~/.bashrc; then
    echo "GOPATH already set in ~/.bashrc."
else
    echo "GOPATH=$HOME/go" >> ~/.bashrc
    echo "GOPATH set in ~/.bashrc."
fi

# Check if PATH is already set
if grep -q 'PATH=$GOPATH/bin:$GOROOT/bin:$PATH' ~/.bashrc; then
    echo "PATH already set in ~/.bashrc."
else
    echo 'PATH=$GOPATH/bin:$GOROOT/bin:$PATH' >> ~/.bashrc
    echo "PATH set in ~/.bashrc."
fi

# Source .bashrc to apply changes
echo "⏳Sourcing .bashrc to apply changes"
source ~/.bashrc
sleep 5  # Add a 5-second delay

# Check GO Version
go version
sleep 5  # Add a 5-second delay

# Install gRPCurl
echo "⏳Installing gRPCurl"
sleep 1  # Add a 1-second delay
go install github.com/fullstorydev/grpcurl/cmd/grpcurl@latest

# Download Ceremonyclient
echo "⏳Downloading Ceremonyclient"
sleep 1  # Add a 1-second delay
cd ~
if [ -d "ceremonyclient" ]; then
  echo "Directory ceremonyclient already exists, skipping git clone..."
else
  until git clone https://source.quilibrium.com/quilibrium/ceremonyclient.git || git clone https://git.quilibrium-mirror.ch/agostbiro/ceremonyclient.git; do
    echo "Git clone failed, retrying..."
    sleep 2
  done
fi
cd ~/ceremonyclient/
git checkout release-cdn

# Build Ceremonyclient qClient
echo "⏳Building qCiient"
sleep 1  # Add a 1-second delay
cd ~/ceremonyclient/node
GOEXPERIMENT=arenas go build -o qclient main.go

# Step 5:Determine the ExecStart line based on the architecture
# Get the current user's home directory
HOME=$(eval echo ~$HOME_DIR)
# Use the home directory in the path
NODE_PATH="$HOME/ceremonyclient/node"
EXEC_START="$NODE_PATH/$NODE_BINARY"

# Create Ceremonyclient Service
echo "⏳Creating Ceremonyclient Service"
sleep 1  # Add a 1-second delay

# Check if the file exists before attempting to remove it
if [ -f "/lib/systemd/system/ceremonyclient.service" ]; then
    # If the file exists, remove it
    rm /lib/systemd/system/ceremonyclient.service
    echo "ceremonyclient.service file removed."
else
    # If the file does not exist, inform the user
    echo "ceremonyclient.service file does not exist. No action taken."
fi

sudo tee /lib/systemd/system/ceremonyclient.service > /dev/null <<EOF
[Unit]
Description=Ceremony Client Go App Service

[Service]
Type=simple
Restart=always
RestartSec=5s
WorkingDirectory=$NODE_PATH
ExecStart=$EXEC_START
KillSignal=SIGINT
TimeoutStopSec=75s

[Install]
WantedBy=multi-user.target
EOF

sudo systemctl daemon-reload
sudo systemctl enable ceremonyclient

# Step 7: Start the ceremonyclient service
echo "✅Starting Ceremonyclient Service"
sleep 1  # Add a 1-second delay
sudo service ceremonyclient start

# Step 8: See the logs of the ceremonyclient service
echo "🎉Welcome to Quilibrium Ceremonyclient"
echo "⏳Please let it flow node logs at least 5 minutes then you can press CTRL + C to exit the logs."
sleep 5  # Add a 5-second delay
sudo journalctl -u ceremonyclient.service -f --no-hostname -o cat