"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.combineChunks = exports.combineChunks_ = void 0;
const Function_1 = require("../../Function");
const T = __importStar(require("../_internal/effect"));
const M = __importStar(require("../_internal/managed"));
const definitions_1 = require("./definitions");
const unfoldChunkM_1 = require("./unfoldChunkM");
/**
 * 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_1.Stream((M.map_(M.bind_(M.bind_(M.bind_(M.do, "left", () => self.proc), "right", () => that.proc), "pull", ({ left, right }) => (0, unfoldChunkM_1.unfoldChunkM)(z, (z) => (T.chain_(f(z, left, right), (ex) => T.optional(T.done(ex))))).proc), ({ pull }) => pull)));
}
exports.combineChunks_ = combineChunks_;
/**
 * 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);
}
exports.combineChunks = combineChunks;
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