55 lines
1.2 KiB
TypeScript
55 lines
1.2 KiB
TypeScript
import { replaceBoth } from "./language";
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export const initialState = {
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source: "auto",
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target: "en",
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query: ""
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}
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type State = typeof initialState;
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export enum Actions {
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SET_FIELD,
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SET_ALL,
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SWITCH_LANGS
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}
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type Action = {
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type: Actions.SET_FIELD,
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payload: {
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key: string,
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value: string
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}
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} | {
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type: Actions.SET_ALL,
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payload: {
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state: State
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}
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} | {
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type: Actions.SWITCH_LANGS
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}
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export default function reducer(state: State, action: Action) {
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switch (action.type) {
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case Actions.SET_FIELD:
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const { key, value } = action.payload;
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return { ...state, [key]: value };
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case Actions.SET_ALL:
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return { ...state, ...action.payload.state };
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case Actions.SWITCH_LANGS:
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const { source, target } = replaceBoth("exception", {
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source: state.target,
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target: state.source
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});
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return {
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...state,
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source: source !== target
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? source
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: initialState.source,
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target
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};
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default:
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return state;
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}
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}
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