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

if [ "$#" -lt 2 ] || [ "$#" -gt 3 ]; then
  echo "usage: $0 <app> <image-ref> [replicas]" >&2
  exit 1
fi

app="$1"
image_ref="$2"
replicas="${3:-1}"

case "$app" in
  admin-solid)
    overlay="apps/nxtgauge-admin-solid/overlays/prod"
    namespace="nxtgauge"
    deployment="nxtgauge-admin-solid"
    container="admin-solid"
    ;;
  frontend-solid)
    overlay="apps/nxtgauge-frontend-solid/overlays/prod"
    namespace="nxtgauge"
    deployment="nxtgauge-frontend-solid"
    container="frontend-solid"
    ;;
  ai-assistant)
    overlay="apps/nxtgauge-ai-assistant/overlays/prod"
    namespace=""
    deployment="nxtgauge-ai-assistant"
    container="ai-assistant"
    ;;
  *)
    echo "unknown app: $app" >&2
    exit 1
    ;;
esac

{
  echo 'apiVersion: apps/v1'
  echo 'kind: Deployment'
  echo 'metadata:'
  if [ -n "$namespace" ]; then
    echo "  namespace: $namespace"
  fi
  echo "  name: $deployment"
  echo 'spec:'
  echo "  replicas: $replicas"
  echo '  template:'
  echo '    spec:'
  echo '      containers:'
  echo "        - name: $container"
  echo "          image: $image_ref"
} > "$overlay/release-patch.yaml"