#!/usr/bin/env sh
set -e

HYDRA_ADMIN_URL="${HYDRA_ADMIN_URL:-http://hydra:4445}"
CREDENTIALS_FILE="/client-credentials/client-credentials.json"

echo "Waiting for Hydra to be ready..."
until wget -qO- "${HYDRA_ADMIN_URL}/health/ready" 2>/dev/null | grep -q '"status":"ok"'; do
  echo "  Hydra not ready yet, retrying in 3s..."
  sleep 3
done
echo "Hydra is ready."

CLIENT_COUNT=$(cat "${CREDENTIALS_FILE}" | python3 -c "import sys,json; print(len(json.load(sys.stdin)))")

for i in $(seq 0 $((CLIENT_COUNT - 1))); do
  CLIENT_JSON=$(cat "${CREDENTIALS_FILE}" | python3 -c "import sys,json; print(json.dumps(json.load(sys.stdin)[$i]))")
  CLIENT_ID=$(echo "${CLIENT_JSON}" | python3 -c "import sys,json; print(json.load(sys.stdin)['client_id'])")

  echo "Checking client: ${CLIENT_ID}"

  # Check if client already exists
  HTTP_CODE=$(wget -qO/dev/null -S "${HYDRA_ADMIN_URL}/admin/clients/${CLIENT_ID}" 2>&1 | grep "HTTP/" | tail -1 | awk '{print $2}')
  if [ "${HTTP_CODE}" = "200" ]; then
    echo "  Client '${CLIENT_ID}' already exists, skipping."
    continue
  fi

  echo "  Registering client '${CLIENT_ID}'..."
  wget -qO- --header="Content-Type: application/json" \
    --post-data="${CLIENT_JSON}" \
    "${HYDRA_ADMIN_URL}/admin/clients" || {
      echo "  ERROR: Failed to register client '${CLIENT_ID}'"
      exit 1
    }
  echo ""
  echo "  Client '${CLIENT_ID}' registered successfully."
done

echo "All OAuth2 clients registered."