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

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

usage() {
  cat <<'USAGE'
Usage: ./scripts/deploy-backend.sh [--skip-docker]

Options:
  --skip-docker   Build jar only, skip docker compose build/up
USAGE
}

log() {
  printf '[deploy] %s\n' "$*"
}

SKIP_DOCKER=0
while [[ $# -gt 0 ]]; do
  case "$1" in
    --skip-docker)
      SKIP_DOCKER=1
      shift
      ;;
    -h|--help)
      usage
      exit 0
      ;;
    *)
      echo "Unknown option: $1" >&2
      usage
      exit 1
      ;;
  esac
done

"$SCRIPT_DIR/ensure-martial-tool-installed.sh"

log "Packaging backend jar ..."
(
  cd "$PROJECT_DIR"
  mvn clean package -DskipTests
)

if [[ "$SKIP_DOCKER" -eq 1 ]]; then
  log "--skip-docker enabled, jar build finished."
  exit 0
fi

log "Building and restarting martial-api ..."
(
  cd "$PROJECT_DIR"
  docker compose build martial-api
  docker compose up -d --no-deps martial-api
)

log "Waiting for martial-api health ..."
for _ in $(seq 1 60); do
  json="$(cd "$PROJECT_DIR" && docker compose ps --format json martial-api 2>/dev/null || true)"
  health="$(printf '%s\n' "$json" | sed -n 's/.*"Health":"\([^"]*\)".*/\1/p' | head -n 1)"
  status="$(printf '%s\n' "$json" | sed -n 's/.*"Status":"\([^"]*\)".*/\1/p' | head -n 1)"

  if [[ "$health" == "healthy" ]]; then
    log "martial-api is healthy."
    exit 0
  fi

  if printf '%s' "$status" | grep -Eiq 'unhealthy|exited|dead'; then
    echo "[deploy] ERROR: martial-api status=$status" >&2
    exit 1
  fi

  sleep 3
done

echo "[deploy] ERROR: timed out waiting for martial-api health" >&2
(cd "$PROJECT_DIR" && docker compose ps martial-api)
exit 1