text: 'use strict';
  Object.defineProperty(exports, '__esModule', { value: true });
  exports.p2wsh = void 0;
  const bcrypto = require('../crypto');
  const networks_1 = require('../networks');
  const bscript = require('../script');
  const types_1 = require('../types');
  const lazy = require('./lazy');
  const bech32_1 = require('bech32');
  const OPS = bscript.OPS;
  const EMPTY_BUFFER = Buffer.alloc(0);
  function stacksEqual(a, b) {
    if (a.length !== b.length) return false;
    return a.every((x, i) => {
      return x.equals(b[i]);
    });
  }
  function chunkHasUncompressedPubkey(chunk) {
    if (
      Buffer.isBuffer(chunk) &&
      chunk.length === 65 &&
      chunk[0] === 0x04 &&
      (0, types_1.isPoint)(chunk)
    ) {
      return true;
    } else {
      return false;
    }
  }
  // input: <>
  // witness: [redeemScriptSig ...] {redeemScript}
  // output: OP_0 {sha256(redeemScript)}
  function p2wsh(a, opts) {
    if (!a.address && !a.hash && !a.output && !a.redeem && !a.witness)
      throw new TypeError('Not enough data');
    opts = Object.assign({ validate: true }, opts || {});
    (0, types_1.typeforce)(
      {
        network: types_1.typeforce.maybe(types_1.typeforce.Object),
        address: types_1.typeforce.maybe(types_1.typeforce.String),
        hash: types_1.typeforce.maybe(types_1.typeforce.BufferN(32)),
        output: types_1.typeforce.maybe(types_1.typeforce.BufferN(34)),
        redeem: types_1.typeforce.maybe({
          input: types_1.typeforce.maybe(types_1.typeforce.Buffer),
          network: types_1.typeforce.maybe(types_1.typeforce.Object),
          output: types_1.typeforce.maybe(types_1.typeforce.Buffer),
          witness: types_1.typeforce.maybe(
            types_1.typeforce.arrayOf(types_1.typeforce.Buffer),
          ),
        }),
        input: types_1.typeforce.maybe(types_1.typeforce.BufferN(0)),
        witness: types_1.typeforce.maybe(
          types_1.typeforce.arrayOf(types_1.typeforce.Buffer),
        ),
      },
      a,
    );
    const _address = lazy.value(() => {
      const result = bech32_1.bech32.decode(a.address);
      const version = result.words.shift();
      const data = bech32_1.bech32.fromWords(result.words);
      return {
        version,
        prefix: result.prefix,
        data: Buffer.from(data),
      };
    });
    const _rchunks = lazy.value(() => {
      return bscript.decompile(a.redeem.input);
    });
    let network = a.network;
    if (!network) {
      network = (a.redeem && a.redeem.network) || networks_1.bitcoin;
    }
    const o = { network };
    lazy.prop(o, 'address', () => {
      if (!o.hash) return;
      const words = bech32_1.bech32.toWords(o.hash);
      words.unshift(0x00);
      return bech32_1.bech32.encode(network.bech32, words);
    });
    lazy.prop(o, 'hash', () => {
      if (a.output) return a.output.slice(2);
      if (a.address) return _address().data;
      if (o.redeem && o.redeem.output) return bcrypto.sha256(o.redeem.output);
    });
    lazy.prop(o, 'output', () => {
      if (!o.hash) return;
      return bscript.compile([OPS.OP_0, o.hash]);
    });
    lazy.prop(o, 'redeem', () => {
      if (!a.witness) return;
      return {
        output: a.witness[a.witness.length - 1],
        input: EMPTY_BUFFER,
        witness: a.witness.slice(0, -1),
      };
    });
    lazy.prop(o, 'input', () => {
      if (!o.witness) return;
      return EMPTY_BUFFER;
    });
    lazy.prop(o, 'witness', () => {
      // transform redeem input to witness stack?
      if (
        a.redeem &&
        a.redeem.input &&
        a.redeem.input.length > 0 &&
        a.redeem.output &&
        a.redeem.output.length > 0
      ) {
        const stack = bscript.toStack(_rchunks());
        // assign, and blank the existing input
        o.redeem = Object.assign({ witness: stack }, a.redeem);
        o.redeem.input = EMPTY_BUFFER;
        return [].concat(stack, a.redeem.output);
      }
      if (!a.redeem) return;
      if (!a.redeem.output) return;
      if (!a.redeem.witness) return;
      return [].concat(a.redeem.witness, a.redeem.output);
    });
    lazy.prop(o, 'name', () => {
      const nameParts = ['p2wsh'];
      if (o.redeem !== undefined && o.redeem.name !== undefined)
        nameParts.push(o.redeem.name);
      return nameParts.join('-');
    });
    // extended validation
    if (opts.validate) {
      let hash = Buffer.from([]);
      if (a.address) {
        if (_address().prefix !== network.bech32)
          throw new TypeError('Invalid prefix or Network mismatch');
        if (_address().version !== 0x00)
          throw new TypeError('Invalid address version');
        if (_address().data.length !== 32)
          throw new TypeError('Invalid address data');
        hash = _address().data;
      }
      if (a.hash) {
        if (hash.length > 0 && !hash.equals(a.hash))
          throw new TypeError('Hash mismatch');
        else hash = a.hash;
      }
      if (a.output) {
        if (
          a.output.length !== 34 ||
          a.output[0] !== OPS.OP_0 ||
          a.output[1] !== 0x20
        )
          throw new TypeError('Output is invalid');
        const hash2 = a.output.slice(2);
        if (hash.length > 0 && !hash.equals(hash2))
          throw new TypeError('Hash mismatch');
        else hash = hash2;
      }
      if (a.redeem) {
        if (a.redeem.network && a.redeem.network !== network)
          throw new TypeError('Network mismatch');
        // is there two redeem sources?
        if (
          a.redeem.input &&
          a.redeem.input.length > 0 &&
          a.redeem.witness &&
          a.redeem.witness.length > 0
        )
          throw new TypeError('Ambiguous witness source');
        // is the redeem output non-empty?
        if (a.redeem.output) {
          if (bscript.decompile(a.redeem.output).length === 0)
            throw new TypeError('Redeem.output is invalid');
          // match hash against other sources
          const hash2 = bcrypto.sha256(a.redeem.output);
          if (hash.length > 0 && !hash.equals(hash2))
            throw new TypeError('Hash mismatch');
          else hash = hash2;
        }
        if (a.redeem.input && !bscript.isPushOnly(_rchunks()))
          throw new TypeError('Non push-only scriptSig');
        if (
          a.witness &&
          a.redeem.witness &&
          !stacksEqual(a.witness, a.redeem.witness)
        )
          throw new TypeError('Witness and redeem.witness mismatch');
        if (
          (a.redeem.input && _rchunks().some(chunkHasUncompressedPubkey)) ||
          (a.redeem.output &&
            (bscript.decompile(a.redeem.output) || []).some(
              chunkHasUncompressedPubkey,
            ))
        ) {
          throw new TypeError(
            'redeem.input or redeem.output contains uncompressed pubkey',
          );
        }
      }
      if (a.witness && a.witness.length > 0) {
        const wScript = a.witness[a.witness.length - 1];
        if (a.redeem && a.redeem.output && !a.redeem.output.equals(wScript))
          throw new TypeError('Witness and redeem.output mismatch');
        if (
          a.witness.some(chunkHasUncompressedPubkey) ||
          (bscript.decompile(wScript) || []).some(chunkHasUncompressedPubkey)
        )
          throw new TypeError('Witness contains uncompressed pubkey');
      }
    }
    return Object.assign(o, a);
  }
  exports.p2wsh = p2wsh;
  