#!/usr/bin/env bash
# Fund the mainnet CCIPRelayBridge with WETH from the deployer wallet.
# Usage: ./scripts/bridge/fund-mainnet-relay-bridge.sh [amount_wei]
#   If amount_wei is omitted, transfers the deployer's full WETH balance.
# Env: PRIVATE_KEY, ETHEREUM_MAINNET_RPC or RPC_URL_MAINNET (use Infura/Alchemy if llamarpc rate-limits)
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/../.." && pwd)"
[[ -f "${PROJECT_ROOT}/smom-dbis-138/.env" ]] && source "${PROJECT_ROOT}/smom-dbis-138/.env" 2>/dev/null || true

DEPLOYER="${DEPLOYER_ADDRESS:-0x4A666F96fC8764181194447A7dFdb7d471b301C8}"
WETH="0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2"
BRIDGE="0xF9A32F37099c582D28b4dE7Fca6eaC1e5259f939"
# Prefer RPC_URL_MAINNET so override works (e.g. RPC_URL_MAINNET=https://ethereum.publicnode.com if Infura requires secret)
RPC="${RPC_URL_MAINNET:-${ETHEREUM_MAINNET_RPC:-https://ethereum.publicnode.com}}"

[[ -n "${PRIVATE_KEY:-}" ]] || { echo "PRIVATE_KEY required"; exit 1; }
command -v cast &>/dev/null || { echo "cast not found (install Foundry)"; exit 1; }

BALANCE=$(cast call $WETH "balanceOf(address)(uint256)" $DEPLOYER --rpc-url "$RPC" 2>/dev/null || echo "0")
echo "Deployer WETH balance (mainnet): $BALANCE wei"
echo "Bridge WETH balance (mainnet):   $(cast call $WETH "balanceOf(address)(uint256)" $BRIDGE --rpc-url "$RPC" 2>/dev/null || echo "0") wei"

if [[ "${1:-}" = "" ]]; then
  AMT="$BALANCE"
  echo "Transferring full balance: $AMT wei"
else
  AMT="$1"
  echo "Transferring: $AMT wei"
fi

if [[ -z "$AMT" ]] || [[ "$AMT" = "0" ]]; then
  echo "Nothing to transfer."
  exit 0
fi

cast send $WETH "transfer(address,uint256)" $BRIDGE "$AMT" \
  --rpc-url "$RPC" \
  --private-key "$PRIVATE_KEY" \
  --legacy

echo "Done. Bridge WETH balance: $(cast call $WETH "balanceOf(address)(uint256)" $BRIDGE --rpc-url "$RPC") wei"