#! /bin/bash
set -euo pipefail

RED='\033[0;31m'
YELLOW='\033[1;33m'
CYAN='\033[0;36m'
GREEN='\033[0;32m'
NC='\033[0m' # No Color

host=$(hostname)

read -p "Please enter the host (default: $host): " host_input
host=${host_input:-$host}

read -p "Do you want to set the UI as the default for this server? (yes/no): " ui_default

if [[ "$ui_default" =~ ^[Yy][Ee][Ss]$ ]]; then
    echo -e "${YELLOW}WARNING: This will override the default nginx configuration.${NC}"
    ui_default=true
else
    ui_default=false
fi

echo -e "${GREEN}Summary of Configuration:${NC}"
echo -e "${CYAN}Host: $host${NC}"
echo -e "${CYAN}Set UI as default: ${ui_default}${NC}"

echo -e "${YELLOW}Do you want to proceed with the installation? (yes/no): ${NC}"
read proceed

if [[ ! "$proceed" =~ ^[Yy][Ee][Ss]$ ]]; then
    echo -e "${RED}Installation aborted.${NC}"
    exit 1
fi

echo -e "${GREEN}installing required packages...${NC}"
sudo apt-get update
sudo apt-get install -y openjdk-17-jdk
sudo apt-get install -y nginx
sudo apt-get install -y wget

echo -e "${GREEN}done${NC}"

echo -e "${GREEN}setting up openems system service...${NC}"

# setup openems service
sudo wget -O /etc/systemd/system/openems.service https://git.mumme-it.de/Mumme-IT/openems-build/raw/branch/main/installation/openems.service

# setup openems config dir
sudo mkdir -p /etc/openems.d

#fetch openems jar
sudo mkdir -p /usr/lib/openems
sudo wget -O /usr/lib/openems/openems.jar https://git.mumme-it.de/Mumme-IT/openems-build/raw/branch/main/build/latest/openems-edge.jar

# reload systemd and start service
sudo systemctl daemon-reload
sudo systemctl enable openems
sudo systemctl start openems

echo -e "${GREEN}done${NC}"

echo -e "${GREEN}setting up ui as default nginx site...${NC}"

sudo mkdir -p /var/www/openems/html

wget -O ~/openems-ui.zip https://git.mumme-it.de/Mumme-IT/openems-build/raw/main/build/latest/ui.zip

sudo unzip -o ~/openems-ui.zip -d /var/www/openems/html
sudo rm ~/openems-ui.zip

sudo wget -O /etc/nginx/sites-available/openems https://git.mumme-it.de/Mumme-IT/openems-build/raw/branch/main/installation/nginx-config
sudo ln -sf /etc/nginx/sites-available/openems "/etc/nginx/sites-enabled/$host"

if $ui_default; then
    sudo ln -sf /etc/nginx/sites-available/openems /etc/nginx/sites-enabled/default
fi

sudo systemctl restart nginx

echo -e "${GREEN}done${NC}"