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

# Target server runtime installer. It only loads packaged Docker images and
# starts docker compose; it does not build source code.

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

DEPLOY_ENV="${DEPLOY_ENV:-emp-test}"
PROJECT_NAME="${PROJECT_NAME:-$DEPLOY_ENV}"
ENV_FILE="${ENV_FILE:-.env}"
COMPOSE_FILE="${COMPOSE_FILE:-docker-compose.yml}"
IMAGE_TAR="${IMAGE_TAR:-images.tar}"

log() {
  echo "[$(date '+%Y-%m-%d %H:%M:%S')] $*"
}

die() {
  echo "ERROR: $*" >&2
  exit 1
}

need_cmd() {
  command -v "$1" >/dev/null 2>&1 || die "Missing command: $1"
}

need_cmd docker

if docker compose version >/dev/null 2>&1; then
  DC=(docker compose)
elif command -v docker-compose >/dev/null 2>&1; then
  DC=(docker-compose)
else
  die "Missing docker compose"
fi

if [[ ! -f "$ENV_FILE" ]]; then
  cp .env.example "$ENV_FILE"
  die "Generated $ENV_FILE. Update passwords, PUBLIC_HOST and ports, then rerun: bash install.sh"
fi

if [[ ! -f "$COMPOSE_FILE" ]]; then
  die "Missing compose file: $COMPOSE_FILE"
fi

if [[ -f "$IMAGE_TAR" ]]; then
  log "Load images: $IMAGE_TAR"
  docker load -i "$IMAGE_TAR"
else
  log "Image tar not found: $IMAGE_TAR. Compose will use local or remote images."
fi

log "Start deploy env: $DEPLOY_ENV, project: $PROJECT_NAME"
"${DC[@]}" \
  --env-file "$ENV_FILE" \
  -f "$COMPOSE_FILE" \
  -p "$PROJECT_NAME" \
  up -d

log "Current service status"
"${DC[@]}" \
  --env-file "$ENV_FILE" \
  -f "$COMPOSE_FILE" \
  -p "$PROJECT_NAME" \
  ps

log "Done. Visit http://PUBLIC_HOST:ADMIN_HOST_PORT from the configured .env values."