#!/usr/bin/env bash
# Generates random values for the secrets docker-compose.yml requires
# (LITELLM_MASTER_KEY, LITELLM_SALT_KEY, LITELLM_DB_PASSWORD, UI_PASSWORD)
# and writes them into .env — creating it from .env.example first if it
# doesn't exist.
#
# ponytail: only fills in blank values, never overwrites ones you've already
# set — safe to re-run. Re-running won't touch LITELLM_SALT_KEY once it's
# set; changing it after first run makes existing encrypted data unreadable.
set -euo pipefail
cd "$(dirname "$0")/.."

[ -f .env ] || cp .env.example .env

set_if_blank() {
  local key="$1" value="$2"
  if grep -qE "^${key}=.*[^[:space:]]" .env; then
    echo "${key}: already set, skipping."
  else
    sed -i "s|^${key}=.*|${key}=${value}|" .env
    echo "${key}: generated."
  fi
}

set_if_blank LITELLM_MASTER_KEY "$(openssl rand -hex 32)"
set_if_blank LITELLM_SALT_KEY "$(openssl rand -hex 32)"
set_if_blank LITELLM_DB_PASSWORD "$(openssl rand -hex 32)"
set_if_blank UI_PASSWORD "$(openssl rand -hex 16)"

echo "Done. Review .env, then set OPENWEBUI_LITELLM_KEY per docs/proxy-key-onboarding.md."