How to confirm msg received on-chain about blueprint HOT 7 OPEN

export async function getSeqNo(provider: NetworkProvider, address: Address) {
    if (await provider.isContractDeployed(address)) {
        let res = await provider.api().runMethod((await provider.api().getLastBlock()).last.seqno, address, 'seqno');
        return res.reader.readNumber();
    } else {
        return 0;
    }
}

export async function waitSeqNoChange(provider: NetworkProvider, target: Address, previousSeqno: number) {
    console.log(` - Waiting up to 45 seconds to confirm transaction`);
    let successFlag = 0;
    for (let attempt = 0; attempt < 45; attempt++) {
        await sleep(1000);
        const seqnoAfter = await getSeqNo(provider, target);
        if (seqnoAfter > previousSeqno) {
            successFlag = 1;
            break;
        };
    }
    if (successFlag) {
        console.log(` - Sent transaction done successfully`);
        return true;
    } else {
        console.log(` - Sent transaction didn't go through`);
        return false;
    }
}

export async function awaitConfirmation(fn: () => Promise<boolean>) {
    console.log(` - Waiting up to 45 seconds to confirm operation`);
    let successFlag = 0;
    for (let attempt = 0; attempt < 45; attempt++) {
        await sleep(1000);
        let res = false
        try {
            res = await fn()
        } catch {}
        
        if (res) {
            successFlag = 1
            break
        }
    }
    if (!successFlag) {
        console.log(` - Error confirming operation`);
        return false;
    }
    return true;
}

// example
const seqno = await getSeqNo(provider, provider.sender().address);
// ---------
// send tx here
// ---------
if (await waitSeqNoChange(provider, provider.sender().address, seqno)) {
    if (await awaitConfirmation(async () => {
        const data = await ctr.getData()      // target ctr data
        return data.stuff === 1                  // what we expect to see
    })) {
        console.log(` - Successfully confirmed tx`)
    } else {
        console.log(` - Error confirming tx`)
    }
}