import { Observable } from "rxjs";
import { getAlpacaApi } from "./alpaca";
import { buildOptimisticOperation } from "./utils";
import { log } from "@ledgerhq/logs";
import BigNumber from "bignumber.js";
/**
 * Sign Transaction with Ledger hardware
 */
export const genericSignRawOperation = (network, kind) => (signerContext) => ({ account, transaction, deviceId, }) => new Observable(o => {
    async function main() {
        const alpacaApi = getAlpacaApi(account.currency.id, kind);
        const signedInfo = await signerContext(deviceId, async (signer) => {
            const derivationPath = account.freshAddressPath;
            const { publicKey } = (await signer.getAddress(derivationPath));
            const sender = account.freshAddress;
            // TODO: should compute it and pass it down to craftTransaction (duplicate call right now)
            const sequenceNumber = await alpacaApi.getSequence(sender);
            /* Craft unsigned blob via Alpaca */
            const { transaction: unsigned } = await alpacaApi.craftRawTransaction(transaction, sender, publicKey, sequenceNumber);
            /* Notify UI that the device is now showing the tx */
            o.next({ type: "device-signature-requested" });
            /* Sign on Ledger device */
            const txnSig = await signer.signTransaction(derivationPath, unsigned);
            return { unsigned, txnSig, publicKey, sequence: sequenceNumber };
        });
        /* If the user cancelled inside signerContext */
        if (!signedInfo)
            return;
        o.next({ type: "device-signature-granted" });
        /* Combine payload + signature for broadcast */
        const combined = await alpacaApi.combine(signedInfo.unsigned, signedInfo.txnSig, signedInfo.publicKey);
        const operation = buildOptimisticOperation(account, { family: account.currency.family, amount: new BigNumber(0), recipient: "" }, signedInfo.sequence);
        if (!operation.id) {
            log("Generic alpaca", "buildOptimisticOperation", operation);
        }
        // NOTE: we set the transactionSequenceNumber before on the operation
        // now that we create it in craftTransaction, we might need to return it back from craftTransaction also
        o.next({
            type: "signed",
            signedOperation: {
                operation,
                signature: combined,
            },
        });
    }
    main().then(() => o.complete(), e => o.error(e));
});
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