#!/usr/bin/env bash
set -euo pipefail
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
source "$SCRIPT_DIR/_common.sh"

: "${ETH_RPC_URL:=}"
: "${ETH_PRIVATE_KEY:=}"

main() {
  need date
  need mkdir
  need cat
  need grep
  need cut
  need tr
  need cast

  [[ -n "$ETH_RPC_URL" ]] || die "ETH_RPC_URL is required."
  [[ -n "$ETH_PRIVATE_KEY" ]] || die "ETH_PRIVATE_KEY is required (v1)."

  # sanity ping
  cast chain-id --rpc-url "$ETH_RPC_URL" >/dev/null 2>&1 || die "RPC not reachable."
  log_info "Preflight OK."
}
main "$@"