#!/usr/bin/env bash
# Send WETH cross-chain via CCIP (Chain 138 → destination chain).
# Usage: ./scripts/bridge/run-send-cross-chain.sh <amount_eth> [recipient] [--dry-run]
# Env: CCIP_DEST_CHAIN_SELECTOR, GAS_PRICE, GAS_LIMIT, CONFIRM_ABOVE_ETH (prompt above this amount)
# Version: 2026-01-31

set -euo pipefail
[[ "${DEBUG:-0}" = "1" ]] && set -x
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "${SCRIPT_DIR}/../lib/load-project-env.sh"

[[ -z "${PRIVATE_KEY:-}" ]] && { echo "PRIVATE_KEY required"; exit 1; }
[[ -z "${CCIPWETH9_BRIDGE_CHAIN138:-}" ]] && { echo "CCIPWETH9_BRIDGE_CHAIN138 required"; exit 1; }
command -v cast &>/dev/null || { echo "ERROR: cast not found (install Foundry)"; exit 1; }

DRY_RUN=false
ARGS=()
for a in "$@"; do
  [[ "$a" = "--dry-run" ]] && DRY_RUN=true || ARGS+=("$a")
done

AMOUNT_ETH="${ARGS[0]:?Usage: $0 amount_eth [recipient] [--dry-run]}"
RECIPIENT="${ARGS[1]:-$(cast wallet address "$PRIVATE_KEY" 2>/dev/null)}"

DEST_SELECTOR="${CCIP_DEST_CHAIN_SELECTOR:-5009297550715157269}"
GAS_PRICE="${GAS_PRICE:-1000000000}"
GAS_LIMIT="${GAS_LIMIT:-}"
RPC="${RPC_URL_138:-$CHAIN138_RPC}"
[[ -z "$RPC" ]] && { echo "ERROR: RPC_URL_138 or CHAIN138_RPC required"; exit 1; }
BRIDGE="${CCIPWETH9_BRIDGE_CHAIN138}"

# Confirmation for large amounts
CONFIRM_ABOVE="${CONFIRM_ABOVE_ETH:-1}"
if [[ -n "$CONFIRM_ABOVE" ]] && awk -v a="$AMOUNT_ETH" -v b="$CONFIRM_ABOVE" 'BEGIN{exit !(a+0>=b+0)}' 2>/dev/null; then
  read -p "Send $AMOUNT_ETH ETH to $RECIPIENT? [y/N] " r
  [[ "${r,,}" != "y" ]] && [[ "${r,,}" != "yes" ]] && exit 0
fi

AMOUNT_WEI=$(cast --to-wei "$AMOUNT_ETH" ether)
FEE_WEI=$(cast call "$BRIDGE" "calculateFee(uint64,uint256)" "$DEST_SELECTOR" "$AMOUNT_WEI" --rpc-url "$RPC" 2>/dev/null | cast --to-dec || echo "0")
FEE_TOKEN=$(cast call "$BRIDGE" "feeToken()(address)" --rpc-url "$RPC" 2>/dev/null || echo "0x0")
V=""; [[ "$FEE_TOKEN" = "0x0000000000000000000000000000000000000000" ]] && [[ -n "$FEE_WEI" ]] && [[ "$FEE_WEI" != "0" ]] && V="--value $FEE_WEI"

GAS_OPT=""; [[ -n "$GAS_LIMIT" ]] && GAS_OPT="--gas-limit $GAS_LIMIT"

if [[ "$DRY_RUN" = true ]]; then
  echo "DRY-RUN: cast send $BRIDGE sendCrossChain($DEST_SELECTOR,$RECIPIENT,$AMOUNT_WEI) --gas-price $GAS_PRICE --legacy $V $GAS_OPT"
  cast call "$BRIDGE" "sendCrossChain(uint64,address,uint256)" "$DEST_SELECTOR" "$RECIPIENT" "$AMOUNT_WEI" --rpc-url "$RPC" --private-key "$PRIVATE_KEY" $V 2>/dev/null && echo "Simulation: OK" || echo "Simulation: (check params)"
  exit 0
fi

# Real execution: broadcasts sendCrossChain transaction (no --dry-run)
cast send "$BRIDGE" "sendCrossChain(uint64,address,uint256)" "$DEST_SELECTOR" "$RECIPIENT" "$AMOUNT_WEI" --rpc-url "$RPC" --private-key "$PRIVATE_KEY" --gas-price "$GAS_PRICE" --legacy $V $GAS_OPT