"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.buffer = void 0;
// ets_tracing: off
const Tp = __importStar(require("../../../../Collections/Immutable/Tuple"));
const Ref = __importStar(require("../../../../Ref"));
const C = __importStar(require("../core"));
const ReadWith = __importStar(require("./readWith"));
const Unwrap = __importStar(require("./unwrap"));
const ZipRight = __importStar(require("./zipRight"));
/**
 * Creates a channel backed by a buffer. When the buffer is empty, the channel will simply
 * passthrough its input as output. However, when the buffer is non-empty, the value inside
 * the buffer will be passed along as output.
 */
function buffer(empty, isEmpty, ref) {
    return Unwrap.unwrap(Ref.modify_(ref, (v) => {
        if (isEmpty(v)) {
            return Tp.tuple(ReadWith.readWith((_in) => ZipRight.zipRight_(C.write(_in), buffer(empty, isEmpty, ref)), (err) => C.fail(err), (done) => C.end(done)), v);
        }
        else {
            return Tp.tuple(ZipRight.zipRight_(C.write(v), buffer(empty, isEmpty, ref)), empty);
        }
    }));
}
exports.buffer = buffer;
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