@alauda-fe/common
Version:
Alauda frontend team common codes.
63 lines • 12.3 kB
JavaScript
/**
* @packageDocumentation
* @module async-data
*/
import { get, isEqual } from 'lodash-es';
import { Subject, combineLatest, interval, merge, of, catchError, distinctUntilChanged, filter, map, scan, startWith, switchMap, tap, } from 'rxjs';
import { publishRef } from '../core/public-api';
export class AsyncDataLoader {
constructor(config) {
this.reloadAction$$ = new Subject();
this.dataMapper$$ = new Subject();
this.snapshot = {
params: null,
data: null,
loading: false,
error: null,
};
const { params$, params, dataFilter, silent } = config;
const queryParams$ = params$ || of(params || null);
this.loadState$ = combineLatest([
queryParams$,
this.reloadAction$$.pipe(startWith(null)),
]).pipe(switchMap(([queryParams, startData]) => {
this.snapshot.params = queryParams;
return this.buildFetcher(config)(queryParams).pipe(map(data => ({ data })), catchError((error) => of({ error })), startWith({
data: startData || null,
loading: !startData,
}));
}), map(state => ({
data: null,
loading: false,
error: null,
...state,
})), publishRef());
this.rawData$ = merge(this.loadState$.pipe(map(state => (prev) => state.loading && silent ? prev : state.data)), this.dataMapper$$).pipe(scan((acc, mapper) => mapper(acc), null), tap(data => {
this.snapshot.data = data;
}), publishRef());
this.data$ = this.rawData$.pipe(filter(dataFilter ?? (data => !!data)), publishRef());
this.loading$ = this.loadState$.pipe(map(state => state.loading), distinctUntilChanged(), tap(loading => {
this.snapshot.loading = loading;
}), publishRef());
this.error$ = this.loadState$.pipe(map(state => state.error), distinctUntilChanged(), tap(error => {
this.snapshot.error = error;
}), publishRef());
}
reload(data) {
this.reloadAction$$.next(data);
}
mapData(mapper) {
this.dataMapper$$.next(mapper);
}
buildFetcher(config) {
const { fetcher, interval: period, intervalFilter, compare, } = config;
if (!period) {
return fetcher;
}
const compareFn = Array.isArray(compare)
? (a, b) => isEqual(get(a, compare), get(b, compare))
: compare;
return params => interval(period).pipe(filter(intervalFilter ?? (() => true)), startWith(0), switchMap(() => fetcher(params)), distinctUntilChanged(compareFn));
}
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"async-data-loader.js","sourceRoot":"","sources":["../../../../../libs/common/src/async-data/async-data-loader.ts"],"names":[],"mappings":"AAAA;;;GAGG;AAEH,OAAO,EAAE,GAAG,EAAE,OAAO,EAAE,MAAM,WAAW,CAAC;AACzC,OAAO,EAEL,OAAO,EACP,aAAa,EACb,QAAQ,EACR,KAAK,EACL,EAAE,EACF,UAAU,EACV,oBAAoB,EACpB,MAAM,EACN,GAAG,EACH,IAAI,EACJ,SAAS,EACT,SAAS,EACT,GAAG,GACJ,MAAM,MAAM,CAAC;AAEd,OAAO,EAAa,UAAU,EAAE,MAAM,oBAAoB,CAAC;AAiB3D,MAAM,OAAO,eAAe;IAoB1B,YAAY,MAA2D;QAjBtD,mBAAc,GAAG,IAAI,OAAO,EAAY,CAAC;QACzC,iBAAY,GAAG,IAAI,OAAO,EAAiB,CAAC;QAE7D,aAAQ,GAA+D;YACrE,MAAM,EAAE,IAAI;YACZ,IAAI,EAAE,IAAI;YACV,OAAO,EAAE,KAAK;YACd,KAAK,EAAE,IAAI;SACZ,CAAC;QAUA,MAAM,EAAE,OAAO,EAAE,MAAM,EAAE,UAAU,EAAE,MAAM,EAAE,GAAG,MAAM,CAAC;QAEvD,MAAM,YAAY,GAAG,OAAO,IAAI,EAAE,CAAC,MAAM,IAAI,IAAI,CAAC,CAAC;QAEnD,IAAI,CAAC,UAAU,GAAG,aAAa,CAAC;YAC9B,YAAY;YACZ,IAAI,CAAC,cAAc,CAAC,IAAI,CAAC,SAAS,CAAC,IAAS,CAAC,CAAC;SAC/C,CAAC,CAAC,IAAI,CACL,SAAS,CAAC,CAAC,CAAC,WAAW,EAAE,SAAS,CAAC,EAAE,EAAE;YACrC,IAAI,CAAC,QAAQ,CAAC,MAAM,GAAG,WAAW,CAAC;YACnC,OAAO,IAAI,CAAC,YAAY,CAAC,MAAM,CAAC,CAAC,WAAW,CAAC,CAAC,IAAI,CAChD,GAAG,CAAC,IAAI,CAAC,EAAE,CAAC,CAAC,EAAE,IAAI,EAAE,CAAC,CAAC,EACvB,UAAU,CAAC,CAAC,KAAgB,EAAE,EAAE,CAAC,EAAE,CAAC,EAAE,KAAK,EAAE,CAAC,CAAC,EAC/C,SAAS,CAAC;gBACR,IAAI,EAAE,SAAS,IAAI,IAAI;gBACvB,OAAO,EAAE,CAAC,SAAS;aACpB,CAAC,CACH,CAAC;QACJ,CAAC,CAAC,EACF,GAAG,CAAC,KAAK,CAAC,EAAE,CAAC,CAAC;YACZ,IAAI,EAAE,IAAI;YACV,OAAO,EAAE,KAAK;YACd,KAAK,EAAE,IAAI;YACX,GAAG,KAAK;SACT,CAAC,CAAC,EACH,UAAU,EAAE,CACb,CAAC;QAEF,IAAI,CAAC,QAAQ,GAAG,KAAK,CACnB,IAAI,CAAC,UAAU,CAAC,IAAI,CAClB,GAAG,CAAC,KAAK,CAAC,EAAE,CAAC,CAAC,IAAO,EAAE,EAAE,CAAC,KAAK,CAAC,OAAO,IAAI,MAAM,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,KAAK,CAAC,IAAI,CAAC,CACvE,EACD,IAAI,CAAC,YAAY,CAClB,CAAC,IAAI,CACJ,IAAI,CAAmB,CAAC,GAAG,EAAE,MAAM,EAAE,EAAE,CAAC,MAAM,CAAC,GAAG,CAAC,EAAE,IAAI,CAAC,EAC1D,GAAG,CAAC,IAAI,CAAC,EAAE;YACT,IAAI,CAAC,QAAQ,CAAC,IAAI,GAAG,IAAI,CAAC;QAC5B,CAAC,CAAC,EACF,UAAU,EAAE,CACb,CAAC;QAEF,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,QAAQ,CAAC,IAAI,CAC7B,MAAM,CAAC,UAAU,IAAI,CAAC,IAAI,CAAC,EAAE,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,EACtC,UAAU,EAAE,CACb,CAAC;QAEF,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC,UAAU,CAAC,IAAI,CAClC,GAAG,CAAC,KAAK,CAAC,EAAE,CAAC,KAAK,CAAC,OAAO,CAAC,EAC3B,oBAAoB,EAAE,EACtB,GAAG,CAAC,OAAO,CAAC,EAAE;YACZ,IAAI,CAAC,QAAQ,CAAC,OAAO,GAAG,OAAO,CAAC;QAClC,CAAC,CAAC,EACF,UAAU,EAAE,CACb,CAAC;QAEF,IAAI,CAAC,MAAM,GAAG,IAAI,CAAC,UAAU,CAAC,IAAI,CAChC,GAAG,CAAC,KAAK,CAAC,EAAE,CAAC,KAAK,CAAC,KAAK,CAAC,EACzB,oBAAoB,EAAE,EACtB,GAAG,CAAC,KAAK,CAAC,EAAE;YACV,IAAI,CAAC,QAAQ,CAAC,KAAK,GAAG,KAAK,CAAC;QAC9B,CAAC,CAAC,EACF,UAAU,EAAE,CACb,CAAC;IACJ,CAAC;IAED,MAAM,CAAC,IAAQ;QACb,IAAI,CAAC,cAAc,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC;IACjC,CAAC;IAED,OAAO,CAAC,MAAqB;QAC3B,IAAI,CAAC,YAAY,CAAC,IAAI,CAAC,MAAM,CAAC,CAAC;IACjC,CAAC;IAEO,YAAY,CAClB,MAA2D;QAE3D,MAAM,EACJ,OAAO,EACP,QAAQ,EAAE,MAAM,EAChB,cAAc,EACd,OAAO,GACR,GAAG,MAAwC,CAAC;QAE7C,IAAI,CAAC,MAAM,EAAE,CAAC;YACZ,OAAO,OAAO,CAAC;QACjB,CAAC;QAED,MAAM,SAAS,GAAG,KAAK,CAAC,OAAO,CAAC,OAAO,CAAC;YACtC,CAAC,CAAC,CAAC,CAAI,EAAE,CAAI,EAAE,EAAE,CAAC,OAAO,CAAC,GAAG,CAAC,CAAC,EAAE,OAAO,CAAC,EAAE,GAAG,CAAC,CAAC,EAAE,OAAO,CAAC,CAAC;YAC3D,CAAC,CAAC,OAAO,CAAC;QAEZ,OAAO,MAAM,CAAC,EAAE,CACd,QAAQ,CAAC,MAAM,CAAC,CAAC,IAAI,CACnB,MAAM,CAAC,cAAc,IAAI,CAAC,GAAG,EAAE,CAAC,IAAI,CAAC,CAAC,EACtC,SAAS,CAAC,CAAC,CAAC,EACZ,SAAS,CAAC,GAAG,EAAE,CAAC,OAAO,CAAC,MAAM,CAAC,CAAC,EAChC,oBAAoB,CAAC,SAAS,CAAC,CAChC,CAAC;IACN,CAAC;CACF","sourcesContent":["/**\n * @packageDocumentation\n * @module async-data\n */\n\nimport { get, isEqual } from 'lodash-es';\nimport {\n  Observable,\n  Subject,\n  combineLatest,\n  interval,\n  merge,\n  of,\n  catchError,\n  distinctUntilChanged,\n  filter,\n  map,\n  scan,\n  startWith,\n  switchMap,\n  tap,\n} from 'rxjs';\n\nimport { StringMap, publishRef } from '../core/public-api';\n\nimport {\n  DataError,\n  DataMapper,\n  DataStateAdapter,\n  Fetcher,\n  LoaderConfig,\n  LoaderConfigWithInterval,\n} from './types';\n\nexport interface AsyncLoadState<D> {\n  data?: D;\n  loading?: boolean;\n  error?: DataError;\n}\n\nexport class AsyncDataLoader<D = unknown, P = StringMap>\n  implements DataStateAdapter<D>\n{\n  private readonly reloadAction$$ = new Subject<void | D>();\n  private readonly dataMapper$$ = new Subject<DataMapper<D>>();\n\n  snapshot: { data: D; params: P; loading: boolean; error: DataError } = {\n    params: null,\n    data: null,\n    loading: false,\n    error: null,\n  };\n\n  loadState$: Observable<AsyncLoadState<D>>;\n\n  rawData$: Observable<D>;\n  data$: Observable<D>;\n  loading$: Observable<boolean>;\n  error$: Observable<DataError>;\n\n  constructor(config: LoaderConfig<D, P> | LoaderConfigWithInterval<D, P>) {\n    const { params$, params, dataFilter, silent } = config;\n\n    const queryParams$ = params$ || of(params || null);\n\n    this.loadState$ = combineLatest([\n      queryParams$,\n      this.reloadAction$$.pipe(startWith(null as D)),\n    ]).pipe(\n      switchMap(([queryParams, startData]) => {\n        this.snapshot.params = queryParams;\n        return this.buildFetcher(config)(queryParams).pipe(\n          map(data => ({ data })),\n          catchError((error: DataError) => of({ error })),\n          startWith({\n            data: startData || null,\n            loading: !startData,\n          }),\n        );\n      }),\n      map(state => ({\n        data: null,\n        loading: false,\n        error: null,\n        ...state,\n      })),\n      publishRef(),\n    );\n\n    this.rawData$ = merge(\n      this.loadState$.pipe(\n        map(state => (prev: D) => state.loading && silent ? prev : state.data),\n      ),\n      this.dataMapper$$,\n    ).pipe(\n      scan<DataMapper<D>, D>((acc, mapper) => mapper(acc), null),\n      tap(data => {\n        this.snapshot.data = data;\n      }),\n      publishRef(),\n    );\n\n    this.data$ = this.rawData$.pipe(\n      filter(dataFilter ?? (data => !!data)),\n      publishRef(),\n    );\n\n    this.loading$ = this.loadState$.pipe(\n      map(state => state.loading),\n      distinctUntilChanged(),\n      tap(loading => {\n        this.snapshot.loading = loading;\n      }),\n      publishRef(),\n    );\n\n    this.error$ = this.loadState$.pipe(\n      map(state => state.error),\n      distinctUntilChanged(),\n      tap(error => {\n        this.snapshot.error = error;\n      }),\n      publishRef(),\n    );\n  }\n\n  reload(data?: D) {\n    this.reloadAction$$.next(data);\n  }\n\n  mapData(mapper: DataMapper<D>) {\n    this.dataMapper$$.next(mapper);\n  }\n\n  private buildFetcher(\n    config: LoaderConfig<D, P> | LoaderConfigWithInterval<D, P>,\n  ): Fetcher<D, P> {\n    const {\n      fetcher,\n      interval: period,\n      intervalFilter,\n      compare,\n    } = config as LoaderConfigWithInterval<D, P>;\n\n    if (!period) {\n      return fetcher;\n    }\n\n    const compareFn = Array.isArray(compare)\n      ? (a: D, b: D) => isEqual(get(a, compare), get(b, compare))\n      : compare;\n\n    return params =>\n      interval(period).pipe(\n        filter(intervalFilter ?? (() => true)),\n        startWith(0),\n        switchMap(() => fetcher(params)),\n        distinctUntilChanged(compareFn),\n      );\n  }\n}\n"]}