"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.intersperse = exports.intersperse_ = void 0;
// ets_tracing: off
const CK = __importStar(require("../../../../Collections/Immutable/Chunk"));
const CH = __importStar(require("../../Channel"));
const C = __importStar(require("../core"));
/**
 * Intersperse stream with provided element.
 */
function intersperse_(self, middle) {
    const writer = (isFirst) => CH.readWith((chunk) => {
        const builder = CK.builder();
        let flagResult = isFirst;
        CK.forEach_(chunk, (o) => {
            if (flagResult) {
                flagResult = false;
                builder.append(o);
            }
            else {
                builder.append(middle);
                builder.append(o);
            }
        });
        return CH.zipRight_(CH.write(builder.build()), writer(flagResult));
    }, (err) => CH.fail(err), (_) => CH.unit);
    return new C.Stream(self.channel[">>>"](writer(true)));
}
exports.intersperse_ = intersperse_;
/**
 * Intersperse stream with provided element.
 *
 * @ets_data_first intersperse_
 */
function intersperse(middle) {
    return (self) => intersperse_(self, middle);
}
exports.intersperse = intersperse;
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