import { Transaction } from '@/components/TransactionCard';

// 트랜잭션 데이터 불러오기
export const loadTransactionsFromStorage = (): Transaction[] => {
  const localData = localStorage.getItem('transactions');
  if (localData) {
    return JSON.parse(localData) as Transaction[];
  }
  return [];
};

// 기본 샘플 데이터 생성
export const createSampleTransactions = (selectedMonth: string): Transaction[] => {
  return [{
    id: '1',
    title: '식료품 구매',
    amount: 25000,
    date: `${selectedMonth} 25일, 12:30 PM`,
    category: '식비',
    type: 'expense'
  }, {
    id: '2',
    title: '주유소',
    amount: 50000,
    date: `${selectedMonth} 24일, 3:45 PM`,
    category: '교통비',
    type: 'expense'
  }, {
    id: '4',
    title: '생필품 구매',
    amount: 35000,
    date: `${selectedMonth} 18일, 6:00 AM`,
    category: '생활비',
    type: 'expense'
  }, {
    id: '5',
    title: '월세',
    amount: 650000,
    date: `${selectedMonth} 15일, 10:00 AM`,
    category: '생활비',
    type: 'expense'
  }, {
    id: '6',
    title: '식당',
    amount: 15500,
    date: `${selectedMonth} 12일, 2:15 PM`,
    category: '식비',
    type: 'expense'
  }];
};

// 트랜잭션 데이터 저장하기
export const saveTransactionsToStorage = (transactions: Transaction[]): void => {
  localStorage.setItem('transactions', JSON.stringify(transactions));
};

// 예산 불러오기
export const loadBudgetFromStorage = (): number => {
  const budgetData = localStorage.getItem('budget');
  if (budgetData) {
    const parsedBudget = JSON.parse(budgetData);
    return parsedBudget.total || 1000000;
  }
  return 1000000; // 기본 예산
};