"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const bitcoin = require("../..");
const _regtest_1 = require("./_regtest");
const regtestUtils = require("./_regtest");
const { describe, it, before } = require('mocha');
const assert = require('assert');
const bip65 = require('bip65');
const alice = bitcoin.ECPair.fromWIF('cScfkGjbzzoeewVWmU2hYPUHeVGJRDdFt7WhmrVVGkxpmPP8BHWe', _regtest_1.network);
const bob = bitcoin.ECPair.fromWIF('cMkopUXKWsEzAjfa1zApksGRwjVpJRB3831qM9W4gKZsLwjHXA9x', _regtest_1.network);
describe('bitcoinjs-lib (transactions w/ CLTV)', () => {
    // force update MTP
    // @ts-ignore
    before(async () => {
        await regtestUtils.mine(11);
    });
    const hashType = bitcoin.Transaction.SIGHASH_ALL;
    function cltvCheckSigOutput(aQ, bQ, lockTime) {
        return bitcoin.script.compile([
            bitcoin.opcodes.OP_IF,
            bitcoin.script.number.encode(lockTime),
            bitcoin.opcodes.OP_CHECKLOCKTIMEVERIFY,
            bitcoin.opcodes.OP_DROP,
            bitcoin.opcodes.OP_ELSE,
            bQ.publicKey,
            bitcoin.opcodes.OP_CHECKSIGVERIFY,
            bitcoin.opcodes.OP_ENDIF,
            aQ.publicKey,
            bitcoin.opcodes.OP_CHECKSIG,
        ]);
    }
    function utcNow() {
        return Math.floor(Date.now() / 1000);
    }
    // expiry past, {Alice's signature} OP_TRUE
    it('can create (and broadcast via 3PBP) a Transaction where ' +
        'Alice can redeem the output after the expiry (in the past)', 
    // @ts-ignore
    async () => {
        // 3 hours ago
        const lockTime = bip65.encode({ utc: utcNow() - 3600 * 3 });
        const redeemScript = cltvCheckSigOutput(alice, bob, lockTime);
        const { address } = bitcoin.payments.p2sh({
            redeem: { output: redeemScript, network: _regtest_1.network },
            network: _regtest_1.network,
        });
        // fund the P2SH(CLTV) address
        const unspent = await regtestUtils.faucet(address, 1e5);
        const txb = new bitcoin.TransactionBuilder(_regtest_1.network);
        txb.setLockTime(lockTime);
        // Note: nSequence MUST be <= 0xfffffffe otherwise LockTime is ignored, and is immediately spendable.
        txb.addInput(unspent.txId, unspent.vout, 0xfffffffe);
        txb.addOutput(regtestUtils.RANDOM_ADDRESS, 7e4);
        // {Alice's signature} OP_TRUE
        const tx = txb.buildIncomplete();
        const signatureHash = tx.hashForSignature(0, redeemScript, hashType);
        const redeemScriptSig = bitcoin.payments.p2sh({
            redeem: {
                input: bitcoin.script.compile([
                    bitcoin.script.signature.encode(alice.sign(signatureHash), hashType),
                    bitcoin.opcodes.OP_TRUE,
                ]),
                output: redeemScript,
            },
        }).input;
        tx.setInputScript(0, redeemScriptSig);
        await regtestUtils.broadcast(tx.toHex());
        await regtestUtils.verify({
            txId: tx.getId(),
            address: regtestUtils.RANDOM_ADDRESS,
            vout: 0,
            value: 7e4,
        });
    });
    // expiry will pass, {Alice's signature} OP_TRUE
    it('can create (and broadcast via 3PBP) a Transaction where ' +
        'Alice can redeem the output after the expiry (in the future)', 
    // @ts-ignore
    async () => {
        const height = await regtestUtils.height();
        // 5 blocks from now
        const lockTime = bip65.encode({ blocks: height + 5 });
        const redeemScript = cltvCheckSigOutput(alice, bob, lockTime);
        const { address } = bitcoin.payments.p2sh({
            redeem: { output: redeemScript, network: _regtest_1.network },
            network: _regtest_1.network,
        });
        // fund the P2SH(CLTV) address
        const unspent = await regtestUtils.faucet(address, 1e5);
        const txb = new bitcoin.TransactionBuilder(_regtest_1.network);
        txb.setLockTime(lockTime);
        // Note: nSequence MUST be <= 0xfffffffe otherwise LockTime is ignored, and is immediately spendable.
        txb.addInput(unspent.txId, unspent.vout, 0xfffffffe);
        txb.addOutput(regtestUtils.RANDOM_ADDRESS, 7e4);
        // {Alice's signature} OP_TRUE
        const tx = txb.buildIncomplete();
        const signatureHash = tx.hashForSignature(0, redeemScript, hashType);
        const redeemScriptSig = bitcoin.payments.p2sh({
            redeem: {
                input: bitcoin.script.compile([
                    bitcoin.script.signature.encode(alice.sign(signatureHash), hashType),
                    bitcoin.opcodes.OP_TRUE,
                ]),
                output: redeemScript,
            },
        }).input;
        tx.setInputScript(0, redeemScriptSig);
        // TODO: test that it failures _prior_ to expiry, unfortunately, race conditions when run concurrently
        // ...
        // into the future!
        await regtestUtils.mine(5);
        await regtestUtils.broadcast(tx.toHex());
        await regtestUtils.verify({
            txId: tx.getId(),
            address: regtestUtils.RANDOM_ADDRESS,
            vout: 0,
            value: 7e4,
        });
    });
    // expiry ignored, {Bob's signature} {Alice's signature} OP_FALSE
    it('can create (and broadcast via 3PBP) a Transaction where ' +
        'Alice and Bob can redeem the output at any time', 
    // @ts-ignore
    async () => {
        // two hours ago
        const lockTime = bip65.encode({ utc: utcNow() - 3600 * 2 });
        const redeemScript = cltvCheckSigOutput(alice, bob, lockTime);
        const { address } = bitcoin.payments.p2sh({
            redeem: { output: redeemScript, network: _regtest_1.network },
            network: _regtest_1.network,
        });
        // fund the P2SH(CLTV) address
        const unspent = await regtestUtils.faucet(address, 2e5);
        const txb = new bitcoin.TransactionBuilder(_regtest_1.network);
        txb.setLockTime(lockTime);
        // Note: nSequence MUST be <= 0xfffffffe otherwise LockTime is ignored, and is immediately spendable.
        txb.addInput(unspent.txId, unspent.vout, 0xfffffffe);
        txb.addOutput(regtestUtils.RANDOM_ADDRESS, 8e4);
        // {Alice's signature} {Bob's signature} OP_FALSE
        const tx = txb.buildIncomplete();
        const signatureHash = tx.hashForSignature(0, redeemScript, hashType);
        const redeemScriptSig = bitcoin.payments.p2sh({
            redeem: {
                input: bitcoin.script.compile([
                    bitcoin.script.signature.encode(alice.sign(signatureHash), hashType),
                    bitcoin.script.signature.encode(bob.sign(signatureHash), hashType),
                    bitcoin.opcodes.OP_FALSE,
                ]),
                output: redeemScript,
            },
        }).input;
        tx.setInputScript(0, redeemScriptSig);
        await regtestUtils.broadcast(tx.toHex());
        await regtestUtils.verify({
            txId: tx.getId(),
            address: regtestUtils.RANDOM_ADDRESS,
            vout: 0,
            value: 8e4,
        });
    });
    // expiry in the future, {Alice's signature} OP_TRUE
    it('can create (but fail to broadcast via 3PBP) a Transaction where ' +
        'Alice attempts to redeem before the expiry', 
    // @ts-ignore
    async () => {
        // two hours from now
        const lockTime = bip65.encode({ utc: utcNow() + 3600 * 2 });
        const redeemScript = cltvCheckSigOutput(alice, bob, lockTime);
        const { address } = bitcoin.payments.p2sh({
            redeem: { output: redeemScript, network: _regtest_1.network },
            network: _regtest_1.network,
        });
        // fund the P2SH(CLTV) address
        const unspent = await regtestUtils.faucet(address, 2e4);
        const txb = new bitcoin.TransactionBuilder(_regtest_1.network);
        txb.setLockTime(lockTime);
        // Note: nSequence MUST be <= 0xfffffffe otherwise LockTime is ignored, and is immediately spendable.
        txb.addInput(unspent.txId, unspent.vout, 0xfffffffe);
        txb.addOutput(regtestUtils.RANDOM_ADDRESS, 1e4);
        // {Alice's signature} OP_TRUE
        const tx = txb.buildIncomplete();
        const signatureHash = tx.hashForSignature(0, redeemScript, hashType);
        const redeemScriptSig = bitcoin.payments.p2sh({
            redeem: {
                input: bitcoin.script.compile([
                    bitcoin.script.signature.encode(alice.sign(signatureHash), hashType),
                    bitcoin.script.signature.encode(bob.sign(signatureHash), hashType),
                    bitcoin.opcodes.OP_TRUE,
                ]),
                output: redeemScript,
            },
        }).input;
        tx.setInputScript(0, redeemScriptSig);
        await regtestUtils.broadcast(tx.toHex()).catch(err => {
            assert.throws(() => {
                if (err)
                    throw err;
            }, /Error: non-final \(code 64\)/);
        });
    });
});