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

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")"/.. && pwd)"
ENV_FILE="${ROOT_DIR}/.env"
SECRETS_DIR_DEFAULT="/data/adaptai/secrets/dataops"
SECRETS_DIR="${DTO_SECRETS_DIR:-${SECRETS_DIR_DEFAULT}}"

if [[ -f "$ENV_FILE" ]]; then
  set -a
  source "$ENV_FILE"
  set +a
  echo "ℹ️ Loaded repo .env"
else
  echo "ℹ️ Repo .env not found at $ENV_FILE (will try secrets dir if present)"
fi

# Optionally load secrets from dedicated secrets directory
if [[ -d "$SECRETS_DIR" ]]; then
  loaded_count=0
  # If a .env exists in secrets, source it
  if [[ -f "$SECRETS_DIR/.env" ]]; then
    set -a
    source "$SECRETS_DIR/.env"
    set +a
    echo "ℹ️ Loaded secrets .env from $SECRETS_DIR"
  fi
  # Load KEY=VALUE from individual files (uppercase names only), do not overwrite present vars
  while IFS= read -r -d '' file; do
    varname="$(basename "$file")"
    if [[ "$varname" =~ ^[A-Z0-9_]+$ ]]; then
      if [[ -z "${!varname:-}" ]]; then
        value="$(tr -d '\r' < "$file" | sed -e 's/[[:space:]]*$//')"
        export "$varname"="$value"
        loaded_count=$((loaded_count+1))
      fi
    fi
  done < <(find "$SECRETS_DIR" -maxdepth 1 -type f ! -name '.env' -print0 2>/dev/null)
  echo "ℹ️ Loaded $loaded_count secret variables from $SECRETS_DIR"
else
  echo "ℹ️ Secrets directory not found: $SECRETS_DIR"
fi

required=(
  DTO_ENV HF_TOKEN HF_REPO_ARTIFACTS HF_REPO_DATASETS HF_REPO_MODELS 
  NATS_PRODUCER_PASSWORD NATS_CONSUMER_PASSWORD NATS_ADMIN_PASSWORD
  DRAGONFLY_PASSWORD DRAGONFLY_PRODUCER_PASSWORD DRAGONFLY_CONSUMER_PASSWORD DRAGONFLY_ADMIN_PASSWORD
)

missing=()
for var in "${required[@]}"; do
  if [[ -z "${!var:-}" ]]; then
    missing+=("$var")
  fi
done

if (( ${#missing[@]} > 0 )); then
  echo "⚠️  Missing env vars: ${missing[*]} (continuing)"
fi

echo "✅ Environment loaded: DTO_ENV=${DTO_ENV:-unset}; DTO_SKIP_PROGRAMS=${DTO_SKIP_PROGRAMS:-none}"