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

PROJECT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PYTHON_BIN="$(command -v python3 || true)"

if [[ -z "${PYTHON_BIN}" ]]; then
  echo "Error: python3 not found in PATH."
  exit 1
fi

LOG_FILE="${PROJECT_DIR}/weekly_main.log"
CRON_CMD="cd ${PROJECT_DIR} && ${PYTHON_BIN} ${PROJECT_DIR}/main.py >> ${LOG_FILE} 2>&1"
CRON_JOB="0 0 * * 1 ${CRON_CMD}"

CURRENT_CRON="$(crontab -l 2>/dev/null || true)"

if grep -Fq "${CRON_CMD}" <<< "${CURRENT_CRON}"; then
  echo "Cron job already exists:"
  echo "${CRON_JOB}"
  exit 0
fi

{
  [[ -n "${CURRENT_CRON}" ]] && echo "${CURRENT_CRON}"
  echo "${CRON_JOB}"
} | crontab -

echo "Cron job installed successfully:"
echo "${CRON_JOB}"
echo "Log file: ${LOG_FILE}"