#!/usr/bin/env bash

# This script pulls the latest changes from the Git repository 
# and runs OpenTofu to provision the hypervisor state.
# Usage: ./hypervisor-sync.sh <REPO_URL> <OPENTOFU_DIR>

REPO_URL=${1:-"https://git.depeuter.dev/Bos55/nix-config.git"}
OPENTOFU_DIR=${2:-"opentofu/nodes/mikoshi"}

echo "Starting Hypervisor GitOps sync..."

if [ ! -d "nix-config" ]; then
  echo "Cloning repository from $REPO_URL..."
  git clone "$REPO_URL" nix-config
fi

cd nix-config || exit

git fetch origin main

LOCAL=$(git rev-parse HEAD)
REMOTE=$(git rev-parse origin/main)

if [ "$LOCAL" = "$REMOTE" ]; then
  echo "Already up to date. Nothing to do."
  exit 0
fi

echo "Changes detected. Updating from $LOCAL to $REMOTE..."
git reset --hard origin/main

echo "Applying OpenTofu changes in $OPENTOFU_DIR..."
cd "$OPENTOFU_DIR" || exit

tofu init -upgrade

tofu apply -auto-approve

echo "Hypervisor GitOps sync completed successfully."