import { getCollection } from '../../utils/db.js'

export default defineEventHandler(async (event) => {
  try {
    const collection = await getCollection('balances')
    const balances = await collection.findOne({ type: 'current' })
    
    if (!balances) {
      // Return default balance structure if none exists
      return {
        currentBalance: 0,
        accountBalances: {
          manual: {
            rbc_cad: 0,
            td_cad: 0,
            millennium_eur: 0
          },
          wise: {
            jennie: [],
            henry: []
          },
          lastWiseFetch: null,
          lastManualUpdate: null
        }
      }
    }
    
    // Ensure timestamp fields exist
    if (balances.accountBalances && !balances.accountBalances.lastWiseFetch && !balances.accountBalances.lastManualUpdate) {
      balances.accountBalances.lastWiseFetch = null;
      balances.accountBalances.lastManualUpdate = null;
    }
    
    return balances
  } catch (error) {
    console.error('Error fetching balances:', error)
    throw createError({
      statusCode: 500,
      statusMessage: 'Failed to fetch balances'
    })
  }
})