const TronWeb = require('tronweb');

async function main() {
    try {
        const [
            ,,
            privateKey,
            toAddress,
            contractAddress,
            fullNodeUrl,
            amount
        ] = process.argv;

        if (!privateKey || !toAddress || !contractAddress || !fullNodeUrl || !amount) {
            console.log(JSON.stringify({
                success: false,
                error: '参数不足'
            }));
            return;
        }

        const tronWeb = new TronWeb({
            fullHost: fullNodeUrl,
            privateKey: privateKey
        });

        const contract = await tronWeb.contract().at(contractAddress);

        // USDT 是 6 位精度
        const decimals = 6;
        const sendAmount = tronWeb.toBigNumber(amount)
            .times(tronWeb.toBigNumber(10).pow(decimals))
            .toString();

        const tx = await contract.transfer(
            toAddress,
            sendAmount
        ).send({
            feeLimit: 100_000_000
        });

        // 成功返回
        console.log(JSON.stringify({
            success: true,
            txid: tx
        }));

    } catch (e) {
        // 失败返回
        console.log(JSON.stringify({
            success: false,
            error: e.message
        }));
    }
}

main();