kawa
2eef7225da
- Create src/store/context.tsx: WizardContext, WizardProvider, useWizard hook - useWizard throws if used outside WizardProvider (prevents silent undefined state bugs) - Update src/App.tsx to wrap content in WizardProvider - npm run build exits 0 with no TypeScript errors
30 lines
983 B
TypeScript
30 lines
983 B
TypeScript
// src/store/context.tsx
|
|
// WizardContext, WizardProvider, and useWizard hook.
|
|
// useWizard throws if used outside WizardProvider — prevents silent "undefined state" bugs.
|
|
|
|
import React, { createContext, useContext, useReducer } from 'react';
|
|
import { WizardState, WizardAction, INITIAL_STATE } from './types';
|
|
import { wizardReducer } from './reducer';
|
|
|
|
interface WizardContextValue {
|
|
state: WizardState;
|
|
dispatch: React.Dispatch<WizardAction>;
|
|
}
|
|
|
|
const WizardContext = createContext<WizardContextValue | null>(null);
|
|
|
|
export function WizardProvider({ children }: { children: React.ReactNode }) {
|
|
const [state, dispatch] = useReducer(wizardReducer, INITIAL_STATE);
|
|
return (
|
|
<WizardContext.Provider value={{ state, dispatch }}>
|
|
{children}
|
|
</WizardContext.Provider>
|
|
);
|
|
}
|
|
|
|
export function useWizard(): WizardContextValue {
|
|
const ctx = useContext(WizardContext);
|
|
if (!ctx) throw new Error('useWizard must be used inside <WizardProvider>');
|
|
return ctx;
|
|
}
|