#!/usr/bin/env bash
set -euo pipefail

REGISTRY="registry.rose-ash.com:5000"
APPS="blog market cart events federation account relations likes orders test sx_docs"

usage() {
  echo "Usage: deploy.sh [app ...]"
  echo "       deploy.sh blog          # rebuild + restart blog only"
  echo "       deploy.sh blog market   # rebuild + restart blog and market"
  echo "       deploy.sh --all         # rebuild + restart all apps"
  echo "       deploy.sh               # auto-detect changed apps via git"
  exit 1
}

cd "$(dirname "$0")"

_app_dir() {
  # Map compose service name to source directory when they differ
  case "$1" in
    sx_docs) echo "sx" ;;
    *) echo "$1" ;;
  esac
}

# Determine which apps to build
if [ $# -eq 0 ]; then
  # Auto-detect: uncommitted changes + last commit
  CHANGED=$(git diff --name-only HEAD 2>/dev/null; git diff --name-only HEAD~1 HEAD 2>/dev/null || true)
  BUILD=()
  if echo "$CHANGED" | grep -q "^shared/"; then
    BUILD=($APPS)
  else
    for app in $APPS; do
      dir=$(_app_dir "$app")
      if echo "$CHANGED" | grep -q "^$dir/"; then
        BUILD+=("$app")
      fi
    done
  fi
  if [ ${#BUILD[@]} -eq 0 ]; then
    echo "No app changes detected. Pass app names or --all."
    exit 0
  fi
elif [ "$1" = "--all" ]; then
  BUILD=($APPS)
elif [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
  usage
else
  BUILD=("$@")
fi

echo "Building: ${BUILD[*]}"
echo ""

# --- Run unit tests before deploying ---
echo "=== Running unit tests ==="
docker build -f test/Dockerfile.unit -t rose-ash-test-unit:latest . -q
if ! docker run --rm rose-ash-test-unit:latest; then
  echo ""
  echo "Unit tests FAILED — aborting deploy."
  exit 1
fi
echo "Unit tests passed."
echo ""

for app in "${BUILD[@]}"; do
  dir=$(_app_dir "$app")
  echo "=== $app ==="
  docker build -f "$dir/Dockerfile" -t "$REGISTRY/$app:latest" .
  docker push "$REGISTRY/$app:latest"
  docker service update --force "coop_$app" 2>/dev/null \
    || echo "  (service coop_$app not running — will start on next stack deploy)"
  echo ""
done

echo "Done."
