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

APP_DIR="${APP_DIR:-/opt/drivers_bot/}"
BRANCH="${DEPLOY_BRANCH:-main}"
COMPOSE="${COMPOSE:-docker compose}"
HEALTH_URL="${HEALTH_URL:-http://127.0.0.1:8000/ready}"
BACKUP_BEFORE_DEPLOY="${BACKUP_BEFORE_DEPLOY:-false}"

if [[ ! -d "$APP_DIR/.git" ]]; then
  echo "Deploy directory is not a git repository: $APP_DIR" >&2
  exit 1
fi

cd "$APP_DIR"

if [[ ! -f ".env" ]]; then
  echo ".env is missing in $APP_DIR" >&2
  exit 1
fi

echo "Fetching $BRANCH..."
git fetch origin "$BRANCH"
git checkout "$BRANCH"
git pull --ff-only origin "$BRANCH"

if [[ "$BACKUP_BEFORE_DEPLOY" == "true" ]]; then
  echo "Creating pre-deploy database backup..."
  ./scripts/backup_db.sh
fi

echo "Building and starting containers..."
$COMPOSE build
$COMPOSE up -d

echo "Applying migrations..."
$COMPOSE exec -T api alembic upgrade head

echo "Running smoke checks..."
$COMPOSE exec -T api python -m compileall -q app bot

echo "Running health check: $HEALTH_URL"
for attempt in {1..30}; do
  if curl -fsS "$HEALTH_URL" >/tmp/carpass-ready.json; then
    cat /tmp/carpass-ready.json
    echo
    BASE_URL="${BASE_URL:-${HEALTH_URL%/ready}}" ./scripts/smoke_test.sh
    $COMPOSE ps
    exit 0
  fi
  sleep 2
done

echo "API readiness check failed" >&2
$COMPOSE logs --tail=120 api >&2
exit 1