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

# --- Wczytaj zmienne z .env ---
if [[ -f .env ]]; then
  set -a
  source .env
  set +a
fi

APP_PORT="${APP_PORT:-8080}"

REPO_DIR="${REPO_DIR:-$(pwd)}"
COMPOSE_FILE="${COMPOSE_FILE:-docker-compose.yml}"
GIT_REMOTE="${GIT_REMOTE:-origin}"
GIT_BRANCH="${GIT_BRANCH:-$(git -C "$REPO_DIR" rev-parse --abbrev-ref HEAD 2>/dev/null || echo main)}"

# Domyślny profil
PROFILE="${1:-sqlite}"

if [[ "$PROFILE" != "pgsql" && "$PROFILE" != "mysql" && "$PROFILE" != "sqlite" ]]; then
  echo "Użycie: $0 {pgsql|mysql|sqlite}"
  exit 1
fi

SERVICES=()
if [[ $# -gt 1 ]]; then
  SERVICES=("${@:2}")
fi

log() { printf "\n==> %s\n" "$*"; }

command -v git >/dev/null || { echo "Brak 'git' w PATH"; exit 1; }
command -v docker >/dev/null || { echo "Brak 'docker' w PATH"; exit 1; }
if ! docker compose version >/dev/null 2>&1; then
  echo "Wymagany jest 'docker compose' (plugin), nie stary 'docker-compose'."
  exit 1
fi

if [[ ! -f "$REPO_DIR/$COMPOSE_FILE" ]]; then
  if [[ -f "$REPO_DIR/compose.yaml" ]]; then
    COMPOSE_FILE="compose.yaml"
  else
    echo "Nie znaleziono pliku Compose w: $REPO_DIR/$COMPOSE_FILE"
    exit 1
  fi
fi

cd "$REPO_DIR"

log "Aktualizacja repo: git pull --ff-only ($GIT_REMOTE/$GIT_BRANCH)"
git fetch --prune "$GIT_REMOTE"
git checkout "$GIT_BRANCH" >/dev/null 2>&1 || true
git pull --ff-only "$GIT_REMOTE" "$GIT_BRANCH"

log "Zapisywanie hasha commita do version.txt"
git rev-parse --short HEAD > version.txt

log "Docker Compose DOWN"
docker compose --profile "$PROFILE" stop

log "Generowanie default.vcl z APP_PORT=$APP_PORT"
envsubst < deploy/varnish/default.vcl.template > deploy/varnish/default.vcl

# Tworzenie katalogów danych dla baz jeśli brak
if [[ "$PROFILE" == "pgsql" ]]; then
  if [[ ! -d "./db/pgsql" ]]; then
    log "Tworzę katalog ./db/pgsql dla danych PostgreSQL"
    mkdir -p ./db/pgsql
  fi
elif [[ "$PROFILE" == "mysql" ]]; then
  if [[ ! -d "./db/mysql" ]]; then
    log "Tworzę katalog ./db/mysql dla danych MySQL"
    mkdir -p ./db/mysql
  fi
fi

log "Docker Compose UP (build bez deps) dla profilu: $PROFILE i serwisów: ${SERVICES[*]:-(wszystkie)}"

if [[ ${#SERVICES[@]} -gt 0 ]]; then
  DB_ENGINE="$PROFILE" docker compose -f "$COMPOSE_FILE" --profile "$PROFILE" up -d --no-deps --build "${SERVICES[@]}"
else
  DB_ENGINE="$PROFILE" docker compose -f "$COMPOSE_FILE" --profile "$PROFILE" up -d --no-deps --build
fi

log "Gotowe ✅  (wersja: $(cat version.txt))"