"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.fromEffectOption = void 0
// tracing: off
const A = __importStar(require("../../Collections/Immutable/Chunk"))
const Tp = __importStar(require("../../Collections/Immutable/Tuple"))
const Function_1 = require("../../Function")
const T = __importStar(require("../_internal/effect"))
const M = __importStar(require("../_internal/managed"))
const Ref = __importStar(require("../_internal/ref"))
const Pull = __importStar(require("../Pull"))
const definitions_1 = require("./definitions")
/**
 * Creates a stream from an effect producing a value of type `A` or an empty Stream
 */
function fromEffectOption(fa) {
  return new definitions_1.Stream(
    M.map_(
      M.let_(
        M.bind_(M.do, "doneRef", () => T.toManaged(Ref.makeRef(false))),
        "pull",
        ({ doneRef }) =>
          T.flatten(
            Ref.modify_(doneRef, (b) =>
              b
                ? Tp.tuple(Pull.end, true)
                : Tp.tuple(
                    T.map_(fa, (a) => A.single(a)),
                    true
                  )
            )
          )
      ),
      ({ pull }) => pull
    )
  )
}
exports.fromEffectOption = fromEffectOption
//# sourceMappingURL=fromEffectOption.js.map
