"""Plugin introspection API - what plugins are loaded and their contracts."""

from flask import Blueprint, current_app
from flask_jwt_extended import jwt_required

from shopdb.utils.responses import success_response

plugins_bp = Blueprint('plugins', __name__)


@plugins_bp.route('', methods=['GET'])
@jwt_required(optional=True)
def list_plugins():
    """List loaded plugins with their manifest metadata + the framework
    contract version they were checked against."""
    from shopdb import __contract_version__
    pm = current_app.extensions.get('plugin_manager')
    plugins = []
    if pm:
        for name, plugin in pm.get_all_plugins().items():
            meta = plugin.meta
            plugins.append({
                'name': meta.name,
                'version': meta.version,
                'description': meta.description,
                'author': meta.author,
                'core_version': meta.core_version,
                'api_prefix': meta.api_prefix,
                'dependencies': meta.dependencies,
            })
    plugins.sort(key=lambda p: p['name'])

    return success_response({
        'contract_version': __contract_version__,
        'count': len(plugins),
        'plugins': plugins,
    })