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

DOCKER_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ROOT_DIR="$(cd "$DOCKER_DIR/.." && pwd)"
ENV_FILE="${ENV_FILE:-$DOCKER_DIR/.env.multisite}"
COMPOSE_FILE="$DOCKER_DIR/docker-compose.multisite.yml"
UPDATE_MODE="${UPDATE_MODE:-local}"

if command -v docker >/dev/null 2>&1; then
  if docker compose version >/dev/null 2>&1; then
    COMPOSE_CMD=(docker compose)
  elif command -v docker-compose >/dev/null 2>&1; then
    COMPOSE_CMD=(docker-compose)
  else
    echo "Errore: non trovo né 'docker compose' né 'docker-compose'."
    exit 127
  fi
elif command -v docker-compose >/dev/null 2>&1; then
  COMPOSE_CMD=(docker-compose)
else
  echo "Errore: Docker non installato in questa VM."
  exit 127
fi

if [[ ! -f "$ENV_FILE" ]]; then
  echo "Env mancante: $ENV_FILE"
  exit 1
fi

source "$ENV_FILE"

echo "[1/6] Backup DB"
"$DOCKER_DIR/backup-multisite.sh"

echo "[2/6] Update codice (mode: $UPDATE_MODE)"
cd "$ROOT_DIR"

case "$UPDATE_MODE" in
  local)
    echo "Uso codice locale già presente sulla VM."
    ;;
  distro)
    if [[ -z "${DISTRO_UPDATE_URL:-}" || -z "${DISTRO_UPDATE_TOKEN:-}" ]]; then
      echo "Errore: per UPDATE_MODE=distro servono DISTRO_UPDATE_URL e DISTRO_UPDATE_TOKEN nel file env."
      exit 1
    fi
    curl -fL -H "Authorization: Bearer ${DISTRO_UPDATE_TOKEN}" "$DISTRO_UPDATE_URL" -o /tmp/netgescon-update.tgz
    tar -xzf /tmp/netgescon-update.tgz -C "$ROOT_DIR"
    ;;
  github)
    if [[ -z "${GITHUB_RELEASE_URL:-}" ]]; then
      echo "Errore: per UPDATE_MODE=github serve GITHUB_RELEASE_URL nel file env."
      exit 1
    fi
    curl -fL "$GITHUB_RELEASE_URL" -o /tmp/netgescon-update.tgz
    tar -xzf /tmp/netgescon-update.tgz -C "$ROOT_DIR"
    ;;
  *)
    echo "Errore: UPDATE_MODE non valido ($UPDATE_MODE). Valori: local | distro | github"
    exit 1
    ;;
esac

echo "[3/6] Build app"
"${COMPOSE_CMD[@]}" --env-file "$ENV_FILE" -f "$COMPOSE_FILE" build prod_app

echo "[4/6] Rolling restart"
"${COMPOSE_CMD[@]}" --env-file "$ENV_FILE" -f "$COMPOSE_FILE" up -d prod_app prod_nginx demo_app demo_nginx

echo "[5/6] Clear cache Laravel"
docker exec netgescon_prod_app php artisan optimize:clear || true
docker exec netgescon_demo_app php artisan optimize:clear || true

echo "[6/6] Stato finale"
"${COMPOSE_CMD[@]}" --env-file "$ENV_FILE" -f "$COMPOSE_FILE" ps

echo "Update completato."