Invert amount if trend is of type DEBT (#18)

src/shared/lib/accounts.ts

@@ -17,7 +17,9 @@ import {
 type TrendEntry = {
  amount: number;
  date: string;
- type: string;
+ // this is determined by the type of report we fetch (DEBTS_TIME/ASSETS_TIME)
+ // it will return different values if we decide to fetch more types of reports (e.g., SPENDING_TIME)
+ type: 'DEBT' | 'ASSET' | string;
 };
 
 type TrendsResponse = {
@@ -147,13 +149,22 @@ const fetchDailyBalancesForMonthIntervals = async ({
  type: 'CUSTOM',
  startDate: start.toISODate(),
  // end is really the start of the next month, so subtract one day
- endDate: end < DateTime.now()
+ endDate:
+ end < DateTime.now()
  ? end.minus({ day: 1 }).toISODate()
  : DateTime.now().toISODate(),
  },
  overrideApiKey,
  })
- .then((response) => response.json().then(({ Trend }) => Trend))
+ .then((response) =>
+ response.json().then(({ Trend }) =>
+ Trend.map(({ amount, type, ...rest }) => ({
+ ...rest,
+ type,
+ amount: type === 'DEBT' ? -amount : amount,
+ })),
+ ),
+ )
  .finally(() => {
  counter.count += 1;
  onProgress?.({ complete: counter.count, total: months.length });