Empty database import updates overall balance

[kenziebourn]

Describe the issue
A user can import a database which has an array of empty values, and the overall balance incorrectly updates.

To Reproduce
Steps to reproduce the behavior:

1. You can unzip and download the testdb.ttldb file provided or create one with the contents:
   [ { "type": "flexible", "date": "2023-05-21", "values": [] } ]
2. Go to Edit > Import Database
3. Upload testdb.ttldb file
4. Scroll down to bottom
5. See error
   

Expected behavior
When importing a database, I expected that the app would check for an array of empty values before validating, and fail if there is no values in the database file. And even if the app should accept empty values, the overall time balance shouldn't be affected since there is no times entered.

Environment
testdb.zip

• Node/npm version: Node v18/npm 6 (although not really applicable since im using downloaded web app)
• OS: Windows 11
• TTL version: latest v3.0.0

[tupaschoal]

Hi @kenziebourn, thanks for the bug report!

Out of curiosity, how did you end up with a date that has empty entries in the database?

[kenziebourn]

I created that test database file manually and made the date have empty entries

[kenziebourn]

Also if possible i'd like to be assigned to this issue

[tupaschoal]

Done