43 lines
909 B
TypeScript
43 lines
909 B
TypeScript
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import IAppState, { AppError } from "./state";
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export type AppStateReducerActionType = "displayError" | "displayLoader";
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export interface AppStateReducerAction {
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payload: Partial<{
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error: AppError;
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value: boolean;
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}>;
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type: AppStateReducerActionType;
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}
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function displayError(prevState: IAppState, error: AppError): IAppState {
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return {
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...prevState,
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error,
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loading: false
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};
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}
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function displayLoader(prevState: IAppState, value: boolean): IAppState {
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return {
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...prevState,
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loading: value
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};
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}
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function reduceAppState(
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prevState: IAppState,
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action: AppStateReducerAction
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): IAppState {
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switch (action.type) {
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case "displayError":
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return displayError(prevState, action.payload.error);
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case "displayLoader":
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return displayLoader(prevState, action.payload.value);
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default:
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return prevState;
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}
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}
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export default reduceAppState;
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