TotalDeposited lifetime-analytics entry can silently reset to zero after ~30 days of investor inactivity

[abayomicornelius]

Area

Investment Vault / Storage

Complexity

Medium

File(s)

investment_vault/src/lib.rs:456, :808-812 (get_portfolio)

Problem

env.storage().persistent().extend_ttl(&key, 17280, 518400) is the only extend_ttl/TTL-bump call in the entire contract, capping the entry's guaranteed lifetime at ~518,400 ledgers (~30 days at 5s/ledger). If an investor deposits once and never deposits again, their TotalDeposited(account) entry can be archived after ~30 days; get_portfolio then silently reads unwrap_or(0), resetting a value documented as "lifetime deposited" back to zero with no error or event.

Scope

In:

• Extend the TTL window (or bump it on every read, e.g. from get_portfolio), or clearly document the 30-day limitation.

Out:

• Implementing a general storage-rent-monitoring service.

Acceptance Criteria

• TotalDeposited survives investor inactivity for the vault's intended lifetime, or docs are corrected to not claim "lifetime"
• A test simulates ledger advancement past the current TTL and checks the value is preserved

[SINCEO2]

@SINCEO2 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello , I’ve thoroughly read the issue description and understand the expected outcome. I’d love to work on it.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @SINCEO2 to this issue.

[laurentketterle-hub]

/attempt #316

[Andreas2410]

@Andreas2410 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi maintainer, I'd like to work on this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Andreas2410 to this issue.