nrgy/rx-effects.cjs

The library for reactive programming using efficient computing and MVC/MVVM patterns

"use strict";Object.defineProperty(exports, "__esModule", {value: true});

var _chunk3WQA6SVUcjs = require('./chunk-3WQA6SVU.cjs');


var _chunkDUWWIS26cjs = require('./chunk-DUWWIS26.cjs');







var _chunk4OYRW4HCcjs = require('./chunk-4OYRW4HC.cjs');

// src/rx-effects/query.ts
var _rxjs = require('rxjs');
function toQuery(source) {
  return {
    get: () => _chunk4OYRW4HCcjs.RUNTIME.runAsUntracked(() => source()),
    value$: _chunk3WQA6SVUcjs.observe.call(void 0, source)
  };
}
function fromQuery(query) {
  const onDestroyed = _chunk4OYRW4HCcjs.signal.call(void 0, { sync: true });
  const scope = _chunkDUWWIS26cjs.createScope.call(void 0, );
  scope.onDestroy(() => {
    onDestroyed();
    _chunk4OYRW4HCcjs.destroySignal.call(void 0, onDestroyed);
  });
  const state = scope.atom({ type: 0 /* value */ });
  const changes$ = query.value$.pipe(_rxjs.skip.call(void 0, 1));
  scope.add(
    changes$.subscribe({
      next: () => state.set({ type: 0 /* value */ }),
      error: (error) => state.set({ type: 1 /* error */, error }),
      complete: () => scope.destroy()
    })
  );
  const result = _chunk4OYRW4HCcjs.compute.call(void 0, () => {
    const current = state();
    switch (current.type) {
      case 0 /* value */:
        return query.get();
      case 1 /* error */:
        throw current.error;
    }
  });
  const node = _chunk4OYRW4HCcjs.getAtomNode.call(void 0, result);
  return _chunk4OYRW4HCcjs.createAtomFromFunction.call(void 0, node, () => result(), {
    onDestroyed,
    destroy: () => scope.destroy(),
    asReadonly: () => result
  });
}

// src/rx-effects/action.ts
function toAction(source, options) {
  const action = (value) => source(value);
  action.event$ = _chunk3WQA6SVUcjs.observe.call(void 0, source, options);
  return action;
}
function fromAction(action) {
  let subscription;
  function unsubscribe() {
    subscription == null ? void 0 : subscription.unsubscribe();
    subscription = void 0;
  }
  const s = _chunk4OYRW4HCcjs.signal.call(void 0, {
    onSubscribe: () => {
      if (!subscription) {
        subscription = action.event$.subscribe((value) => s(value));
      }
    },
    onUnsubscribe: (isEmpty) => {
      if (isEmpty) {
        unsubscribe();
      }
    },
    onDestroy: () => {
      unsubscribe();
    }
  });
  return s;
}





exports.fromAction = fromAction; exports.fromQuery = fromQuery; exports.toAction = toAction; exports.toQuery = toQuery;