school_compare/nextjs-app/context/ComparisonContext.tsx

/**
 * ComparisonContext
 * Global state for school comparison basket
 */

'use client';

import { createContext, useContext } from 'react';
import type { School } from '@/lib/types';

interface ComparisonContextType {
  selectedSchools: School[];
  comparisonData: any;
  isLoading: boolean;
  error: any;
  addSchool: (school: School) => void;
  removeSchool: (urn: number) => void;
  clearAll: () => void;
  isSelected: (urn: number) => boolean;
  canAddMore: boolean;
  isInitialized: boolean;
  mutate: () => void;
}

export const ComparisonContext = createContext<ComparisonContextType | undefined>(undefined);

export function useComparisonContext() {
  const context = useContext(ComparisonContext);
  if (!context) {
    throw new Error('useComparisonContext must be used within ComparisonProvider');
  }
  return context;
}