thunderbird/thunderbird-android

[ML 0.5/MVI.02.3] Implement LocalMessageUidPrefixProvider

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#10,511 opened on Feb 10, 2026

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 (7 comments) (0 reactions) (1 assignee)Kotlin (2,734 forks)batch import
good first issuetype: enhancement

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Description

Description

Implement the LocalMessageUidPrefixProvider logic to retrieve the system-wide prefix used for messages that have not yet been synced with the server.

Goal

Decouple the deletion logic from legacy global constants (like K9.LOCAL_UID_PREFIX), allowing for cleaner testing and dependency injection.

Acceptance Criteria

  • Correctly identifies messages generated locally that do not yet have a server-assigned UID.
  • Replace direct calls from K9.LOCAL_UID_PREFIX to the newly created LocalMessageUidPrefixProvider.get()
  • Testing: Unit tests verifying prefix detection across various message UID formats.

Contributor guide

Research direction
Examine current usage of K9.LOCAL UID PREFIX in the codebase and identify all places that need to be updated to use the new LocalMessageUidPrefixProvider. Then implement the provider with unit tests.
Tech stack
kotlin
Domain
mobile
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
KotlinAndroid development
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
65