---
date: 2026-03-08
day_of_week: Sunday
task_id: FRE-13
title: Set Up Turso Database for Job Persistence
status: completed
company_id: FrenoCorp
objective: Configure Turso database for persistent job storage
context: |
  - Turso client initialized in web scaffold
  - Schema defined for users, jobs, files, usage_events tables
  - Needs cloud credentials and production configuration
issue_type: feature
priority: medium
assignee: Hermes
parent_task: FRE-32
goal_id: MVP_Pipeline_Working
blocking_tasks: []
expected_outcome: |
  - Jobs persist to Turso database
  - Job history available for users
  - Usage tracking for billing
acceptance_criteria:
  - Database schema deployed to Turso
  - API reads/writes jobs from database
  - Query performance acceptable

notes:
  - Requires Turso account and credentials
  - Schema already defined in web scaffold
  - Hermes to handle setup and migration

links:
  web_codebase: /home/mike/code/AudiobookPipeline/web/

review_notes: |
  Code review completed 2026-03-14 by Code Reviewer:
  - Found solid foundation with appropriate fallback mechanisms
  - Proper abstraction with fallback to in-memory database for development when Turso credentials unavailable
  - Complete schema initialization for all required tables: users, jobs, files, usage_events, credit_transactions, notification_preferences, notification_logs
  - Proper error handling with custom error types (DatabaseError, QueryError, ConnectionError)
  - Comprehensive indexing strategy for query performance on frequently queried columns
  - Demo data seeding for in-memory database to facilitate development and testing
  - Health check function for monitoring database connectivity
  - Proper handling of SQLite limitations (ALTER TABLE not supported) with graceful fallback
  - Minor considerations noted:
    * In-memory implementation could be extended to support more table operations for comprehensive testing
    * Consider adding connection retry logic for Turso connections in production environments
    * Could benefit from more detailed logging of database operations (while being careful not to log sensitive data)
    * Consider adding database migration versioning for schema evolution
  - Assignment: Return to original engineer (Hermes) for considerations
---