#!/bin/bash
set -e

echo "Updating system packages..."
sudo apt update && sudo apt upgrade -y

echo "Installing prerequisites..."
sudo apt install -y apt-transport-https ca-certificates gnupg wget

echo "Adding Microsoft package repository for .NET 8..."
wget https://packages.microsoft.com/config/debian/12/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
sudo dpkg -i packages-microsoft-prod.deb
sudo apt update

echo "Installing .NET 8 SDK and runtime..."
sudo apt install -y dotnet-sdk-8.0 aspnetcore-runtime-8.0

echo "Installing PostgreSQL..."
sudo apt install -y postgresql postgresql-contrib
sudo systemctl enable postgresql
sudo systemctl start postgresql

echo "Creating PostgreSQL user and database..."
sudo -u postgres psql <<EOF
CREATE USER api WITH PASSWORD 'abcd1234';
CREATE DATABASE apidatabase OWNER api;
GRANT ALL PRIVILEGES ON DATABASE apidatabase TO api;
EOF

APP_DIR=/opt/api
echo "Creating application directory $APP_DIR..."
sudo mkdir -p $APP_DIR
sudo chown $(whoami):$(whoami) $APP_DIR

echo "Copy your published .NET API files (DLL, appsettings.json) into $APP_DIR now."
read -p "Press Enter to continue after copying files..."

echo "Creating systemd service file..."
sudo tee /etc/systemd/system/mydotnetapi.service > /dev/null <<EOF
[Unit]
Description=My .NET Web API
After=network.target

[Service]
WorkingDirectory=$APP_DIR
ExecStart=/usr/bin/dotnet $APP_DIR/Taekwondo.WebApi.dll
Restart=always
RestartSec=10
SyslogIdentifier=dotnet-api
User=$(whoami)
Environment=ASPNETCORE_ENVIRONMENT=Production

[Install]
WantedBy=multi-user.target
EOF

echo "Reloading systemd daemon and starting mydotnetapi service..."
sudo systemctl daemon-reload
sudo systemctl enable mydotnetapi
sudo systemctl start mydotnetapi

echo "Setup complete. Check service status with: sudo systemctl status mydotnetapi"
echo "Test your API endpoints with curl or Postman."