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@ngneat/reactive-forms

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(Angular Reactive) Forms with Benefits

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import { UntypedFormArray } from "@angular/forms"; import { from, isObservable, of } from "rxjs"; import { debounceTime, switchMap, take, tap } from "rxjs/operators"; export function persistControl(control, key, { debounceTime, manager, arrControlFactory, persistDisabledControls }) { const persistManager = manager || new LocalStorageManager(); return restoreControl(control, key, persistManager, arrControlFactory).pipe(switchMap(() => persistValue$(control, key, { debounceTime: debounceTime || 250, manager: persistManager, persistDisabledControls }))); } function persistValue$(control, key, options) { return control.valueChanges.pipe( // eslint-disable-next-line @typescript-eslint/no-non-null-assertion debounceTime(options.debounceTime), switchMap(value => // eslint-disable-next-line @typescript-eslint/no-non-null-assertion wrapIntoObservable(options.manager.setValue(key, options.persistDisabledControls ? control.getRawValue() : value)))); } export function restoreControl(control, key, manager, arrControlFactory) { return wrapIntoObservable(manager.getValue(key)).pipe(take(1), tap(value => { if (!value) return; if (arrControlFactory) { handleFormArrays(control, value, arrControlFactory); } control.patchValue(value, { emitEvent: false }); })); } function handleFormArrays(control, formValue, arrControlFactory) { Object.keys(formValue).forEach(controlName => { const value = formValue[controlName]; if (Array.isArray(value) && control.get(controlName) instanceof UntypedFormArray) { if (!arrControlFactory || (arrControlFactory && !(controlName in arrControlFactory))) { throw new Error(`Please provide arrControlFactory for ${controlName}`); } const current = control.get(controlName); const fc = arrControlFactory[controlName]; clearFormArray(current); value.forEach((v, i) => current.insert(i, fc(v))); } }); } export function clearFormArray(control) { while (control.length !== 0) { control.removeAt(0); } } export function wrapIntoObservable(value) { if (isObservable(value) || isPromise(value)) { return from(value); } return of(value); } function isPromise(value) { return typeof value?.then === 'function'; } export class LocalStorageManager { setValue(key, data) { localStorage.setItem(key, JSON.stringify(data)); return data; } getValue(key) { return JSON.parse(localStorage.getItem(key) || '{}'); } } export class SessionStorageManager { setValue(key, data) { sessionStorage.setItem(key, JSON.stringify(data)); return data; } getValue(key) { return JSON.parse(sessionStorage.getItem(key) || '{}'); } } //# sourceMappingURL=data:application/json;base64,{"version":3,"file":"persist.js","sourceRoot":"","sources":["../../../../../../libs/reactive-forms/src/lib/persist/persist.ts"],"names":[],"mappings":"AACA,OAAO,EAAmB,gBAAgB,EAAE,MAAM,gBAAgB,CAAC;AACnE,OAAO,EAAE,IAAI,EAAE,YAAY,EAAc,EAAE,EAAE,MAAM,MAAM,CAAC;AAC1D,OAAO,EAAE,YAAY,EAAE,SAAS,EAAE,IAAI,EAAE,GAAG,EAAE,MAAM,gBAAgB,CAAC;AASpE,MAAM,UAAU,cAAc,CAC5B,OAAwB,EACxB,GAAW,EACX,EAAE,YAAY,EAAE,OAAO,EAAE,iBAAiB,EAAE,uBAAuB,EAAqB;IAExF,MAAM,cAAc,GAAG,OAAO,IAAI,IAAI,mBAAmB,EAAE,CAAC;IAE5D,OAAO,cAAc,CAAC,OAAO,EAAE,GAAG,EAAE,cAAc,EAAE,iBAAiB,CAAC,CAAC,IAAI,CACzE,SAAS,CAAC,GAAG,EAAE,CACb,aAAa,CAAC,OAAO,EAAE,GAAG,EAAE;QAC1B,YAAY,EAAE,YAAY,IAAI,GAAG;QACjC,OAAO,EAAE,cAAc;QACvB,uBAAuB;KACxB,CAAC,CACH,CACF,CAAC;AACJ,CAAC;AAED,SAAS,aAAa,CAAI,OAAwB,EAAE,GAAW,EAAE,OAA0B;IACzF,OAAO,OAAO,CAAC,YAAY,CAAC,IAAI;IAC9B,oEAAoE;IACpE,YAAY,CAAC,OAAO,CAAC,YAAa,CAAC,EACnC,SAAS,CAAC,KAAK,CAAC,EAAE;IAChB,oEAAoE;IACpE,kBAAkB,CAAC,OAAO,CAAC,OAAQ,CAAC,QAAQ,CAAC,GAAG,EAAE,OAAO,CAAC,uBAAuB,CAAC,CAAC,CAAE,OAAe,CAAC,WAAW,EAAE,CAAC,CAAC,CAAC,KAAK,CAAC,CAAC,CAC7H,CACF,CAAC;AACJ,CAAC;AAGD,MAAM,UAAU,cAAc,CAAI,OAAwB,EAAE,GAAW,EAAE,OAA0B,EAAE,iBAAmD;IACtJ,OAAO,kBAAkB,CAAC,OAAO,CAAC,QAAQ,CAAC,GAAG,CAAC,CAAC,CAAC,IAAI,CACnD,IAAI,CAAC,CAAC,CAAC,EACP,GAAG,CAAC,KAAK,CAAC,EAAE;QACV,IAAI,CAAC,KAAK;YAAE,OAAO;QAEnB,IAAI,iBAAiB,EAAE;YACrB,gBAAgB,CAAC,OAAO,EAAE,KAAK,EAAE,iBAAiB,CAAC,CAAC;SACrD;QAED,OAAO,CAAC,UAAU,CAAC,KAAK,EAAE,EAAE,SAAS,EAAE,KAAK,EAAE,CAAC,CAAC;IAClD,CAAC,CAAC,CACH,CAAC;AACJ,CAAC;AAGD,SAAS,gBAAgB,CACvB,OAAwB,EACxB,SAAY,EACZ,iBAAuC;IAEvC,MAAM,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC,OAAO,CAAC,WAAW,CAAC,EAAE;QAC3C,MAAM,KAAK,GAAI,SAAiB,CAAC,WAAW,CAAC,CAAC;QAE9C,IAAI,KAAK,CAAC,OAAO,CAAC,KAAK,CAAC,IAAI,OAAO,CAAC,GAAG,CAAC,WAAW,CAAC,YAAY,gBAAgB,EAAE;YAChF,IAAI,CAAC,iBAAiB,IAAI,CAAC,iBAAiB,IAAI,CAAC,CAAC,WAAW,IAAI,iBAAiB,CAAC,CAAC,EAAE;gBACpF,MAAM,IAAI,KAAK,CAAC,wCAAwC,WAAW,EAAE,CAAC,CAAC;aACxE;YACD,MAAM,OAAO,GAAG,OAAO,CAAC,GAAG,CAAC,WAAW,CAAqB,CAAC;YAC7D,MAAM,EAAE,GAAI,iBAAyB,CAAC,WAAW,CAAC,CAAA;YAClD,cAAc,CAAC,OAAO,CAAC,CAAC;YACxB,KAAK,CAAC,OAAO,CAAC,CAAC,CAAC,EAAE,CAAC,EAAE,EAAE,CAAC,OAAO,CAAC,MAAM,CAAC,CAAC,EAAE,EAAE,CAAC,CAAC,CAAC,CAAC,CAAC,CAAC;SACnD;IACH,CAAC,CAAC,CAAC;AACL,CAAC;AAED,MAAM,UAAU,cAAc,CAAC,OAAyB;IACtD,OAAO,OAAO,CAAC,MAAM,KAAK,CAAC,EAAE;QAC3B,OAAO,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC;KACrB;AACH,CAAC;AAED,MAAM,UAAU,kBAAkB,CAAI,KAAqC;IACzE,IAAI,YAAY,CAAC,KAAK,CAAC,IAAI,SAAS,CAAC,KAAK,CAAC,EAAE;QAC3C,OAAO,IAAI,CAAC,KAAK,CAAC,CAAC;KACpB;IAED,OAAO,EAAE,CAAC,KAAK,CAAC,CAAC;AACnB,CAAC;AAED,SAAS,SAAS,CAAC,KAAU;IAC3B,OAAO,OAAO,KAAK,EAAE,IAAI,KAAK,UAAU,CAAC;AAC3C,CAAC;AAgBD,MAAM,OAAO,mBAAmB;IAC9B,QAAQ,CAAC,GAAW,EAAE,IAAO;QAC3B,YAAY,CAAC,OAAO,CAAC,GAAG,EAAE,IAAI,CAAC,SAAS,CAAC,IAAI,CAAC,CAAC,CAAC;QAChD,OAAO,IAAI,CAAC;IACd,CAAC;IAED,QAAQ,CAAC,GAAW;QAClB,OAAO,IAAI,CAAC,KAAK,CAAC,YAAY,CAAC,OAAO,CAAC,GAAG,CAAC,IAAI,IAAI,CAAC,CAAC;IACvD,CAAC;CACF;AAED,MAAM,OAAO,qBAAqB;IAChC,QAAQ,CAAC,GAAW,EAAE,IAAO;QAC3B,cAAc,CAAC,OAAO,CAAC,GAAG,EAAE,IAAI,CAAC,SAAS,CAAC,IAAI,CAAC,CAAC,CAAC;QAClD,OAAO,IAAI,CAAC;IACd,CAAC;IAED,QAAQ,CAAC,GAAW;QAClB,OAAO,IAAI,CAAC,KAAK,CAAC,cAAc,CAAC,OAAO,CAAC,GAAG,CAAC,IAAI,IAAI,CAAC,CAAC;IACzD,CAAC;CACF","sourcesContent":["\nimport { AbstractControl, UntypedFormArray } from \"@angular/forms\";\nimport { from, isObservable, Observable, of } from \"rxjs\";\nimport { debounceTime, switchMap, take, tap } from \"rxjs/operators\";\n\nexport interface PersistOptions<T> {\n  debounceTime?: number;\n  manager?: PersistManager<T>;\n  arrControlFactory?: ControlFactoryMap<T>;\n  persistDisabledControls?: boolean;\n}\n\nexport function persistControl<T>(\n  control: AbstractControl,\n  key: string,\n  { debounceTime, manager, arrControlFactory, persistDisabledControls }: PersistOptions<T>\n): Observable<unknown> {\n  const persistManager = manager || new LocalStorageManager();\n\n  return restoreControl(control, key, persistManager, arrControlFactory).pipe(\n    switchMap(() =>\n      persistValue$(control, key, {\n        debounceTime: debounceTime || 250,\n        manager: persistManager,\n        persistDisabledControls\n      })\n    )\n  );\n}\n\nfunction persistValue$<T>(control: AbstractControl, key: string, options: PersistOptions<T>): Observable<T> {\n  return control.valueChanges.pipe(\n    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n    debounceTime(options.debounceTime!),\n    switchMap(value =>\n      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion\n      wrapIntoObservable(options.manager!.setValue(key, options.persistDisabledControls ? (control as any).getRawValue() : value))\n    )\n  );\n}\n\n\nexport function restoreControl<T>(control: AbstractControl, key: string, manager: PersistManager<T>, arrControlFactory: ControlFactoryMap<T> | undefined): Observable<T> {\n  return wrapIntoObservable(manager.getValue(key)).pipe(\n    take(1),\n    tap(value => {\n      if (!value) return;\n\n      if (arrControlFactory) {\n        handleFormArrays(control, value, arrControlFactory);\n      }\n\n      control.patchValue(value, { emitEvent: false });\n    })\n  );\n}\n\n\nfunction handleFormArrays<T>(\n  control: AbstractControl,\n  formValue: T,\n  arrControlFactory: ControlFactoryMap<T>\n) {\n  Object.keys(formValue).forEach(controlName => {\n    const value = (formValue as any)[controlName];\n\n    if (Array.isArray(value) && control.get(controlName) instanceof UntypedFormArray) {\n      if (!arrControlFactory || (arrControlFactory && !(controlName in arrControlFactory))) {\n        throw new Error(`Please provide arrControlFactory for ${controlName}`);\n      }\n      const current = control.get(controlName) as UntypedFormArray;\n      const fc = (arrControlFactory as any)[controlName]\n      clearFormArray(current);\n      value.forEach((v, i) => current.insert(i, fc(v)));\n    }\n  });\n}\n\nexport function clearFormArray(control: UntypedFormArray) {\n  while (control.length !== 0) {\n    control.removeAt(0);\n  }\n}\n\nexport function wrapIntoObservable<T>(value: T | Promise<T> | Observable<T>): Observable<T> {\n  if (isObservable(value) || isPromise(value)) {\n    return from(value);\n  }\n\n  return of(value);\n}\n\nfunction isPromise(value: any): value is Promise<unknown> {\n  return typeof value?.then === 'function';\n}\n\nexport type ArrayKeys<T> = { [K in keyof T]: T[K] extends any[] ? K : never }[keyof T];\nexport type ControlFactory<T> = (value: T) => AbstractControl;\nexport type ControlFactoryMap<T> = {\n  [K in ArrayKeys<T>]?: ControlFactory<ArrayType<T[K]>>;\n};\ntype ArrayType<T> = T extends Array<infer R> ? R : any;\n\n\nexport interface PersistManager<T> {\n  setValue(key: string, data: T): T | Promise<T> | Observable<T>;\n  getValue(key: string): T | Promise<T> | Observable<T>;\n}\n\n\nexport class LocalStorageManager<T> implements PersistManager<T> {\n  setValue(key: string, data: T): T {\n    localStorage.setItem(key, JSON.stringify(data));\n    return data;\n  }\n\n  getValue(key: string): T {\n    return JSON.parse(localStorage.getItem(key) || '{}');\n  }\n}\n\nexport class SessionStorageManager<T> implements PersistManager<T> {\n  setValue(key: string, data: T): T {\n    sessionStorage.setItem(key, JSON.stringify(data));\n    return data;\n  }\n\n  getValue(key: string): T {\n    return JSON.parse(sessionStorage.getItem(key) || '{}');\n  }\n}"]}