Files
shopdb-flask/plugins/usb/plugin.py
cproudlock f663cc5bbe Enforce plugin contract purity: single import surface via shopdb.api
Plugins were reaching into internal core paths (shopdb.core.models.*,
shopdb.extensions, shopdb.utils.*), coupling them to core's file layout and
violating the ADR-001 contract. Consolidate onto one versioned surface.

- shopdb.api: expand from 2 helpers to the full plugin import surface -
  db, cache; BaseModel, AuditMixin; core models (Asset, AssetType,
  AssetStatus, Vendor, Model, Communication, CommunicationType, Location,
  Setting, AuditLog, Application, AppVersion, OperatingSystem); response +
  pagination helpers; employee_connection. Documented in PLUGIN-HOOKS.md.
- Migrate all 22 plugin source files to import only from shopdb.api (plus
  shopdb.plugins.base for the ABC).
- Drop the printers plugin's legacy MachineType dependency: remove
  _ensure_legacy_machine_types and the seed_supplies machinetypeid lookup
  (Model.machinetypeid is nullable; printers carry type via PrinterType).
- Guard test test_plugins_only_import_contract_surface scans plugin source
  and fails on any core import outside shopdb.api / shopdb.plugins.base.
- Scaffold templates updated so generated plugins are contract-pure.
- Bump __contract_version__ 0.2.0 -> 0.3.0 (additive surface expansion;
  manifests pin <1.0.0 so they still satisfy).

145 tests pass, naming/style green, app factory boots all 6 plugins.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-26 16:45:06 -04:00

81 lines
2.6 KiB
Python

"""USB plugin main class."""
import json
import logging
from pathlib import Path
from typing import List, Dict, Optional, Type
from flask import Flask, Blueprint
from shopdb.plugins.base import BasePlugin, PluginMeta
from shopdb.api import db
from .models import USBDevice, USBDeviceType, USBCheckout
from .api import usb_bp
logger = logging.getLogger(__name__)
class USBPlugin(BasePlugin):
"""
USB plugin - manages USB device tracking and checkouts.
Standalone plugin for tracking USB flash drives, external drives,
and other portable storage devices with checkout/checkin functionality.
"""
def __init__(self):
self._manifest = self._load_manifest()
def _load_manifest(self) -> Dict:
"""Load plugin manifest from JSON file."""
manifest_path = Path(__file__).parent / 'manifest.json'
if manifest_path.exists():
with open(manifest_path, 'r') as f:
return json.load(f)
return {}
@property
def meta(self) -> PluginMeta:
"""Return plugin metadata."""
return PluginMeta(
name=self._manifest.get('name', 'usb'),
version=self._manifest.get('version', '1.0.0'),
description=self._manifest.get('description', 'USB device checkout management'),
author=self._manifest.get('author', 'ShopDB Team'),
dependencies=self._manifest.get('dependencies', []),
core_version=self._manifest.get('core_version', '>=1.0.0'),
api_prefix=self._manifest.get('api_prefix', '/api/usb'),
)
def get_blueprint(self) -> Optional[Blueprint]:
"""Return Flask Blueprint with API routes."""
return usb_bp
def get_models(self) -> List[Type]:
"""Return list of SQLAlchemy model classes."""
return [USBDeviceType, USBDevice, USBCheckout]
def init_app(self, app: Flask, db_instance) -> None:
"""Initialize plugin with Flask app."""
logger.info(f"USB plugin initialized (v{self.meta.version})")
def on_install(self, app: Flask) -> None:
"""Called when plugin is installed."""
logger.info("USB plugin installed")
def on_uninstall(self, app: Flask) -> None:
"""Called when plugin is uninstalled."""
logger.info("USB plugin uninstalled")
def get_navigation_items(self) -> List[Dict]:
"""Return navigation menu items."""
return [
{
'name': 'USB Devices',
'icon': 'usb',
'route': '/usb',
'position': 45,
},
]