#!/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:-$DOCKER_DIR/.env.node-local}"
COMPOSE_FILE="$DOCKER_DIR/docker-compose.node-local.yml"

resolve_compose_cmd() {
  if command -v docker >/dev/null 2>&1; then
    if docker compose version >/dev/null 2>&1; then
      echo "docker compose"
      return
    fi
  fi

  if command -v docker-compose >/dev/null 2>&1; then
    echo "docker-compose"
    return
  fi

  echo "Errore: non trovo né 'docker compose' né 'docker-compose'." >&2
  exit 127
}

upsert_env_var() {
  local key="$1"
  local value="$2"

  if grep -qE "^${key}=" "$ENV_FILE"; then
    sed -i "s#^${key}=.*#${key}=${value}#" "$ENV_FILE"
  else
    printf '\n%s=%s\n' "$key" "$value" >> "$ENV_FILE"
  fi
}

COMPOSE_CMD="$(resolve_compose_cmd)"

if [[ ! -f "$ENV_FILE" ]]; then
  echo "Env mancante: $ENV_FILE"
  echo "Crea prima il file: cp $DOCKER_DIR/.env.node-local.example $ENV_FILE"
  exit 1
fi

source "$ENV_FILE"

if [[ -z "${APP_KEY:-}" ]]; then
  GENERATED_APP_KEY="base64:$(openssl rand -base64 32 | tr -d '\n')"
  upsert_env_var "APP_KEY" "$GENERATED_APP_KEY"
  APP_KEY="$GENERATED_APP_KEY"
  echo "APP_KEY generata automaticamente in $ENV_FILE"
fi

if [[ -n "${LEGACY_ARCHIVES_PATH:-}" ]]; then
  mkdir -p "$LEGACY_ARCHIVES_PATH"
fi

mkdir -p "$ROOT_DIR/storage/backups"

echo "[1/6] Validazione compose"
$COMPOSE_CMD --env-file "$ENV_FILE" -f "$COMPOSE_FILE" config >/tmp/netgescon-node-local.config

echo "[2/6] Build immagine applicativa"
$COMPOSE_CMD --env-file "$ENV_FILE" -f "$COMPOSE_FILE" build app

echo "[3/6] Avvio database e redis"
$COMPOSE_CMD --env-file "$ENV_FILE" -f "$COMPOSE_FILE" up -d db redis

echo "[4/6] Avvio applicazione e nginx"
$COMPOSE_CMD --env-file "$ENV_FILE" -f "$COMPOSE_FILE" up -d app nginx

echo "[5/6] Creazione database import legacy"
$COMPOSE_CMD --env-file "$ENV_FILE" -f "$COMPOSE_FILE" exec -T db sh -lc \
  "mysql -uroot -p\"$DB_ROOT_PASSWORD\" -e \"CREATE DATABASE IF NOT EXISTS gescon_import; GRANT ALL PRIVILEGES ON gescon_import.* TO '$DB_USERNAME'@'%'; FLUSH PRIVILEGES;\""

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

echo
echo "Installazione nodo locale completata."
echo "URL applicazione: ${APP_URL:-http://localhost:${NODE_HTTP_PORT:-8080}}"
echo "Backup/restore: usa docker/restore-node-backup.sh dopo aver copiato dump SQL e archivio storage sulla VM."