39 lines
958 B
Plaintext
39 lines
958 B
Plaintext
import type {
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EntityId,
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EntityState,
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EntityStateAdapter,
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EntityStateFactory,
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} from './models'
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export function getInitialEntityState<T, Id extends EntityId>(): EntityState<
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T,
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Id
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> {
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return {
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ids: [],
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entities: {} as Record<Id, T>,
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}
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}
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export function createInitialStateFactory<T, Id extends EntityId>(
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stateAdapter: EntityStateAdapter<T, Id>,
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): EntityStateFactory<T, Id> {
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function getInitialState(
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state?: undefined,
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entities?: readonly T[] | Record<Id, T>,
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): EntityState<T, Id>
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function getInitialState<S extends object>(
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additionalState: S,
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entities?: readonly T[] | Record<Id, T>,
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): EntityState<T, Id> & S
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function getInitialState(
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additionalState: any = {},
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entities?: readonly T[] | Record<Id, T>,
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): any {
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const state = Object.assign(getInitialEntityState(), additionalState)
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return entities ? stateAdapter.setAll(state, entities) : state
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}
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return { getInitialState }
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}
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