#!/bin/bash

set -euo pipefail

if [[ ${1-} == "" ]]; then
    echo "Usage: $0 <destination_address> [amount]"
    echo "Amount defaults to 1 RIN if not specified."
    exit 1
fi

ADDRESS="$1"
AMOUNT="${2-1}"
WALLET="main"
CONTAINER="rincoin-node"
CLI_CMD=(sudo docker exec "$CONTAINER" rincoin-cli -datadir=/data -conf=/data/rincoin.conf -rpcwallet="$WALLET")

echo "Checking RinCoin node container..."
if ! sudo docker ps --format '{{.Names}}' | grep -q "^${CONTAINER}$"; then
    echo "Error: container ${CONTAINER} is not running. Start it with 'sudo docker start ${CONTAINER}'."
    exit 1
fi

echo "Ensuring wallet '${WALLET}' is loaded..."
if ! "${CLI_CMD[@]//-rpcwallet=$WALLET/}" listwallets | grep -q '"main"'; then
    echo "Wallet ${WALLET} not loaded, attempting to load..."
    "${CLI_CMD[@]//-rpcwallet=$WALLET/}" loadwallet "$WALLET" >/dev/null
fi

echo "Checking available balance..."
BALANCE_RAW=$("${CLI_CMD[@]}" getbalance)
BALANCE=$(printf '%.8f' "$BALANCE_RAW")

if [[ $(bc <<< "$BALANCE_RAW < $AMOUNT") -eq 1 ]]; then
    echo "Error: insufficient balance. Available ${BALANCE} RIN, but ${AMOUNT} RIN requested."
    exit 1
fi

echo "Broadcasting transaction..."
set +e
TX_OUTPUT=$("${CLI_CMD[@]}" sendtoaddress "$ADDRESS" "$AMOUNT" '' '' false true)
STATUS=$?
set -e

if [[ $STATUS -ne 0 ]]; then
    echo "Failed to send transaction."
    if [[ $STATUS -eq 4 ]]; then
        echo "Wallet appears to be locked. Unlock it with 'sudo docker exec ${CONTAINER} rincoin-cli -datadir=/data -conf=/data/rincoin.conf -rpcwallet=${WALLET} walletpassphrase <passphrase> 600 true' and rerun."
    fi
    exit $STATUS
fi

echo "Transaction broadcast. TXID: ${TX_OUTPUT}"
echo "Verify with: sudo docker exec ${CONTAINER} rincoin-cli -datadir=/data -conf=/data/rincoin.conf gettransaction ${TX_OUTPUT}"