#!/bin/bash
# deploy.sh — Build <agent-name> image in ACR and deploy to AKS.
#
# Usage:
#   ./scripts/deploy.sh                  # auto-bump patch version
#   ./scripts/deploy.sh --tag 1.2.3      # use an explicit tag (does not bump)
#
# Conforms to platform agent-harness-spec §10.

set -euo pipefail

SCRIPT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
AGENT_DIR=$(cd "${SCRIPT_DIR}/.." && pwd)

ACR_NAME="bstagecjotdevacr"
APP_NAME="<agent-name>"
NAMESPACE="agents"
VERSION_FILE="${AGENT_DIR}/.image-version"
TAG=""

# ─── Parse args ─────────────────────────────────────────────────────────
while [[ "$#" -gt 0 ]]; do
  case $1 in
    --tag)
      TAG="$2"
      shift
      ;;
    -h|--help)
      sed -n '2,8p' "$0"
      exit 0
      ;;
    *)
      echo "unknown arg: $1" >&2
      exit 2
      ;;
  esac
  shift
done

# ─── Auto-bump patch version if --tag not given ─────────────────────────
if [ -z "$TAG" ]; then
  if [ -f "$VERSION_FILE" ]; then
    CURRENT_VERSION=$(cat "$VERSION_FILE")
  else
    CURRENT_VERSION="0.1.0"
  fi
  IFS='.' read -r MAJOR MINOR PATCH <<< "$CURRENT_VERSION"
  PATCH=$((PATCH + 1))
  TAG="${MAJOR}.${MINOR}.${PATCH}"
  echo "$TAG" > "$VERSION_FILE"
fi

IMAGE="${ACR_NAME}.azurecr.io/${APP_NAME}:${TAG}"
IMAGE_LATEST="${ACR_NAME}.azurecr.io/${APP_NAME}:latest"

echo "======================================================================"
echo "  ${APP_NAME} — build & deploy"
echo "  Image: ${IMAGE}"
echo "======================================================================"

# ─── Build & push in ACR ────────────────────────────────────────────────
az acr build --registry "$ACR_NAME" \
  --image "${APP_NAME}:${TAG}" \
  --image "${APP_NAME}:latest" \
  "${AGENT_DIR}"

# ─── Apply manifests ────────────────────────────────────────────────────
kubectl apply -f "${AGENT_DIR}/k8s/configmap.yaml"
kubectl apply -f "${AGENT_DIR}/k8s/deployment.yaml"

# ─── Wait for rollout ───────────────────────────────────────────────────
kubectl -n "${NAMESPACE}" rollout status "deployment/${APP_NAME}" --timeout=180s

echo ""
echo "Deployed ${IMAGE} to ${NAMESPACE}/${APP_NAME}"