"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.combineChunks = combineChunks;
exports.combineChunks_ = combineChunks_;

var _index = /*#__PURE__*/require("../../Function/index.cjs");

var T = /*#__PURE__*/_interopRequireWildcard( /*#__PURE__*/require("../_internal/effect.cjs"));

var M = /*#__PURE__*/_interopRequireWildcard( /*#__PURE__*/require("../_internal/managed.cjs"));

var _definitions = /*#__PURE__*/require("./definitions.cjs");

var _unfoldChunkM = /*#__PURE__*/require("./unfoldChunkM.cjs");

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

/**
 * Combines the chunks from this stream and the specified stream by repeatedly applying the
 * function `f` to extract a chunk using both sides and conceptually "offer"
 * it to the destination stream. `f` can maintain some internal state to control
 * the combining process, with the initial state being specified by `s`.
 */
function combineChunks_(self, that, z, f) {
  return new _definitions.Stream(M.map_(M.bind_(M.bind_(M.bind_(M.do, "left", () => self.proc), "right", () => that.proc), "pull", ({
    left,
    right
  }) => (0, _unfoldChunkM.unfoldChunkM)(z, z => T.chain_(f(z, left, right), ex => T.optional(T.done(ex)))).proc), ({
    pull
  }) => pull));
}
/**
 * Combines the chunks from this stream and the specified stream by repeatedly applying the
 * function `f` to extract a chunk using both sides and conceptually "offer"
 * it to the destination stream. `f` can maintain some internal state to control
 * the combining process, with the initial state being specified by `s`.
 */


function combineChunks(that, z, f) {
  return self => combineChunks_(self, that, z, f);
}
//# sourceMappingURL=combineChunks.cjs.map