spoolman2/CLAUDE.md

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

Spoolman is a self-hosted web service for managing 3D printer filament spools. It tracks inventory, monitors usage, and integrates with OctoPrint and Klipper/Moonraker.

Tech Stack:

• Backend: Python 3.9-3.12, FastAPI, SQLAlchemy 2.0 (async), Alembic
• Frontend: React 19, TypeScript, Vite, Ant Design, Refine framework
• Databases: SQLite (default), PostgreSQL, MySQL, CockroachDB

Common Commands

Python (PDM)

pdm install                    # Install all dependencies including dev
pdm sync --prod --no-editable  # Install production dependencies only
pdm run app                    # Run backend server (uvicorn)
pdm run itest                  # Run integration tests (all databases)
pdm run docs                   # Generate API documentation

Frontend

cd client
npm ci                         # Install dependencies
npm run dev                    # Development server with hot reload
npm run build                  # Production build
npm run tsc                    # Type check only

Linting/Formatting

black .                        # Format Python code
ruff check . --fix             # Lint and auto-fix Python
pre-commit run --all-files     # Run all pre-commit hooks

Integration Tests

Tests run in Docker containers against multiple database types:

python tests_integration/run.py sqlite          # Single database
python tests_integration/run.py sqlite postgres # Multiple databases
pdm run itest                                   # All databases

Run a single test:

pytest tests_integration/tests/spool/test_add.py::test_add_spool_remaining_weight -v

Database Migrations

1. Edit models in spoolman/database/models.py
2. Run the server to update local SQLite
3. pdm run alembic revision -m "description" --autogenerate
4. Review generated migration, format with Black/Ruff

Architecture

Backend (/spoolman/)

• main.py - FastAPI app entry, startup/shutdown, SPA mounting
• env.py - Environment variable parsing and configuration
• ws.py - WebSocket manager for real-time updates
• api/v1/ - REST endpoints and WebSocket handlers
  • router.py - Main router with WebSocket root endpoint
  • spool.py, filament.py, vendor.py - CRUD endpoints per resource
  • models.py - Pydantic response models
• database/ - SQLAlchemy models and async database operations
  • models.py - ORM definitions (Vendor, Filament, Spool, Setting, *Field)
  • database.py - Connection setup, backup logic, migrations

Frontend (/client/src/)

• App.tsx - Routing and Refine framework setup
• pages/ - Page components (spools/, filaments/, vendors/, settings/)
• components/dataProvider.ts - REST API integration
• components/liveProvider.ts - WebSocket live updates

Data Model

Vendor (1) ──→ (many) Filament (1) ──→ (many) Spool

All entities support custom fields via *Field tables (VendorField, FilamentField, SpoolField).

API Patterns

• REST: Standard CRUD at /api/v1/{resource}
• WebSocket: Real-time events at WS /api/v1/ or WS /api/v1/{resource}
• Query params: ?skip=0&limit=50&sort_by=name&sort_order=asc

Key Configuration

Environment variables (see .env.example):

• SPOOLMAN_DB_TYPE - Database type (sqlite/mysql/postgres/cockroachdb)
• SPOOLMAN_PORT - Server port (default: 7912)
• SPOOLMAN_DEBUG_MODE - Enables permissive CORS
• VITE_APIURL - Frontend API base URL (e.g., /api/v1)

Code Quality

• Line length: 120 characters
• Python target: 3.9
• Pre-commit hooks enforce Black formatting and Ruff linting
• Backend is fully async using SQLAlchemy AsyncSession

Gitea Repository

• URL: http://192.168.0.5:3022/tonym/spoolman2
• API Token: 8a04b3cb5dbb54e2d895b707305523c3ad83a945
• Upstream: https://github.com/Donkie/Spoolman (remote: upstream)

This is a fork with UX improvements. Issues are tracked on the Gitea instance above.

UX Improvement Issues

#	Title	Status
1	Inline Creation Modals	✅ DONE
2	Smart Density Defaults	✅ DONE
3	QR Code Sizing Fixes	🔄 NEXT
4	Layout Max-Width	Open
5	Temperature Ranges	Open
6	Spool Adjustment History	Open
7	3dfilamentprofiles Integration	Open

Issue #1 Complete - Inline Creation Modals

Added ability to create filament/vendor inline without leaving the page:

• client/src/components/vendorCreateModal.tsx - Quick vendor creation
• client/src/components/filamentCreateModal.tsx - Quick filament creation with nested vendor modal
• Modified spool create to add "Create Filament" in dropdown
• Modified filament create to add "Create Manufacturer" in dropdown
• Uses dropdownRender pattern (same as location select)
• Uses useInvalidate to refresh lists after creation

Issue #2 Complete - Smart Density Defaults

Auto-fill density based on material type:

• client/src/utils/materialDefaults.ts - Density lookup table with fuzzy matching
• Material field converted to AutoComplete (dropdown suggestions + free text)
• Fuzzy matching: "PLA Silk" → PLA (1.24 g/cm³)
• New filaments default to 1.75mm diameter and 1.24 g/cm³ (PLA)
• Applied to both full create page and FilamentCreateModal
• Edit page not affected (preserves user customizations)

Material densities in lookup:

PLA: 1.24, ABS: 1.04, PETG: 1.27, NYLON: 1.52, TPU: 1.21
PC: 1.3, WOOD: 1.28, CF: 1.3, PC/ABS: 1.19, HIPS: 1.03
PVA: 1.23, ASA: 1.05, PP: 0.9, POM: 1.4, PMMA: 1.18, FPE: 2.16

Issue #3 Next - QR Code Sizing Fixes

See upstream issue: https://github.com/Donkie/Spoolman/issues/671

Plan:

• Remove fixed 50% width constraint on QR code
• Add configurable QR padding setting
• Allow explicit QR code size control