"""Printedparts plugin main class.

3D-printed parts inventory + kiosk checkout. Quantity-based consumables:
one row is a KIND of part with a count, not an individually tracked asset,
so unlike most plugins this one seeds NO AssetType (ADR-001 assets are
one-row-per-physical-thing). See docs/proposals/printedparts-plugin.md.
"""

import json
import logging
from pathlib import Path
from typing import List, Optional, Type

from flask import Flask, Blueprint

from shopdb.plugins.base import BasePlugin, PluginMeta
from shopdb.api import db, Setting

from .models import PrintedItem, PrintedItemTransaction, PrintedItemFile
from .api import printedparts_bp

logger = logging.getLogger(__name__)


class PrintedpartsPlugin(BasePlugin):
    """3D-printed parts inventory + kiosk checkout."""

    def __init__(self):
        manifest_path = Path(__file__).parent / 'manifest.json'
        with open(manifest_path) as f:
            self._manifest = json.load(f)

    @property
    def meta(self) -> PluginMeta:
        return PluginMeta(
            name=self._manifest['name'],
            version=self._manifest['version'],
            description=self._manifest['description'],
            author=self._manifest.get('author', ''),
            dependencies=self._manifest.get('dependencies', []),
            core_version=self._manifest.get('core_version', '>=0.1.0'),
            api_prefix=self._manifest.get('api_prefix'),
        )

    def get_blueprint(self) -> Optional[Blueprint]:
        return printedparts_bp

    def get_models(self) -> List[Type]:
        return [PrintedItem, PrintedItemTransaction, PrintedItemFile]

    def init_app(self, app: Flask, db_instance) -> None:
        logger.info(f'Printedparts plugin initialized (v{self.meta.version})')

    def get_permissions(self) -> List:
        """RBAC permissions this plugin owns (seeded on install/enable)."""
        return [
            ('printedparts.view', 'View 3D printed parts', 'printedparts'),
            ('printedparts.create', 'Create printed parts', 'printedparts'),
            ('printedparts.edit', 'Edit printed parts', 'printedparts'),
            ('printedparts.delete', 'Retire printed parts', 'printedparts'),
            ('printedparts.restock', 'Restock and adjust stock counts',
             'printedparts'),
        ]

    def get_settings_cards(self) -> List[dict]:
        return [
            {
                'group': '3D Printed Parts',
                'to': '/settings/printedparts',
                'icon': 'box',
                'title': '3D Parts Settings',
                'description': 'Item code prefix, default threshold, kiosk '
                               'badge policy, low-stock alert recipients',
                'position': 47,
            },
        ]

    def get_reports(self) -> List[dict]:
        return [
            {
                'id': 'printedparts-stock',
                'name': '3D Parts Stock',
                'description': 'Stock levels with low-stock flags and the '
                               'cache-vs-ledger reconcile check',
                'category': 'inventory',
                'endpoint': '/api/printedparts/reports/stock',
            },
            {
                'id': 'printedparts-consumption',
                'name': '3D Parts Consumption',
                'description': 'Takes per item over a date range',
                'category': 'usage',
                'endpoint': '/api/printedparts/reports/consumption',
            },
            {
                'id': 'printedparts-by-person',
                'name': '3D Parts by Person',
                'description': 'Takes grouped by employee',
                'category': 'usage',
                'endpoint': '/api/printedparts/reports/by-person',
            },
        ]

    def get_navigation_items(self) -> List[dict]:
        return [
            {
                'name': '3D Parts',
                'icon': 'box',
                'route': '/printedparts',
                'position': 46,
            },
        ]

    def on_install(self, app: Flask) -> None:
        with app.app_context():
            self._seed_settings()
            logger.info('Printedparts plugin installed')

    def on_enable(self, app: Flask) -> None:
        # Idempotent re-seed so settings added in later versions reach sites
        # that installed earlier (enable runs on every upgrade cycle).
        with app.app_context():
            self._seed_settings()

    def _seed_settings(self) -> None:
        defaults = [
            ('printedparts_code_prefix', '3DP', 'string',
             'Prefix for generated item codes'),
            ('printedparts_label_prefix', '', 'string',
             'Leading text on the physical gage-lab labels, shown at the kiosk '
             'before the number box so operators type only the digits. Empty '
             'shows no prefix. Site-specific: West Jefferson labels read WJ'),
            ('printedparts_default_threshold', '5', 'integer',
             'Default low-stock threshold for new items'),
            ('printedparts_unknown_badge', 'deny', 'string',
             'Kiosk policy when a badge resolves to no employee: allow or deny'),
            ('printedparts_alert_email', '', 'string',
             'Comma-separated low-stock alert recipients; empty uses the '
             'site alert_recipients'),
            ('printedparts_alert_userids', '', 'string',
             'Comma-separated shopdb user ids whose account emails receive '
             'low-stock alerts'),
            ('printedparts_alert_roleids', '', 'string',
             'Comma-separated role ids; every active member of these roles '
             'receives low-stock alerts'),
            ('printedparts_alert_supportteamid', '', 'string',
             'Support team whose webhook receives low-stock alerts; empty uses '
             'the site alert_webhook_url'),
        ]
        for key, value, valuetype, description in defaults:
            if Setting.get(key) is None:
                Setting.set(key, value, valuetype=valuetype,
                            category='printedparts', description=description)
        db.session.commit()