#!/usr/bin/env bash
#
# EHSAN — Mac Mini deployment script.
#
# Pulls the latest code from the Gitea repository, then rebuilds and restarts
# the Docker containers. Run this ON THE MAC MINI, from the repo checkout.
#
#   Flow: Replit -> push to Gitea -> (this script) Mac Mini pulls -> Docker redeploys
#
# Usage:
#   ./deploy.sh
#
# Optional overrides (environment variables):
#   GIT_REMOTE   Git remote to pull from   (default: gitea)
#   GIT_BRANCH   Branch to deploy          (default: main)
#   WEB_PORT     Host port for the web app (default: 8080)

set -euo pipefail

GIT_REMOTE="${GIT_REMOTE:-gitea}"
GIT_BRANCH="${GIT_BRANCH:-main}"

# Always operate from the directory this script lives in.
cd "$(dirname "$0")"

# --- Resolve the docker compose command (v2 plugin or legacy binary) --------
if docker compose version >/dev/null 2>&1; then
  COMPOSE="docker compose"
elif command -v docker-compose >/dev/null 2>&1; then
  COMPOSE="docker-compose"
else
  echo "ERROR: Docker Compose was not found. Install Docker Desktop (includes the" >&2
  echo "       'docker compose' plugin) or the standalone 'docker-compose' binary." >&2
  exit 1
fi

echo "=================================================="
echo " EHSAN deploy  |  remote=${GIT_REMOTE}  branch=${GIT_BRANCH}"
echo "=================================================="

echo ""
echo "==> [1/4] Pulling latest code from ${GIT_REMOTE}/${GIT_BRANCH}..."
if ! git pull "${GIT_REMOTE}" "${GIT_BRANCH}"; then
  echo "ERROR: 'git pull ${GIT_REMOTE} ${GIT_BRANCH}' failed. Is the '${GIT_REMOTE}' remote" >&2
  echo "       configured and reachable? (git remote add ${GIT_REMOTE} <GITEA_URL>)" >&2
  exit 1
fi

echo ""
echo "==> [2/4] Stopping current containers..."
if ! ${COMPOSE} down --remove-orphans; then
  echo "ERROR: Failed to stop the existing containers." >&2
  exit 1
fi

echo ""
echo "==> [3/4] Rebuilding containers (this can take a few minutes)..."
if ! ${COMPOSE} build --pull; then
  echo "ERROR: Docker image build failed. See the build output above." >&2
  exit 1
fi

echo ""
echo "==> [4/4] Starting containers..."
if ! ${COMPOSE} up -d; then
  echo "ERROR: Failed to start the containers." >&2
  exit 1
fi

echo ""
echo "=================================================="
echo " SUCCESS: Deployment complete."
echo "=================================================="
${COMPOSE} ps
echo ""
echo "The app should now be available on this machine at: http://localhost:${WEB_PORT:-8080}"