<?php

declare(strict_types=1);

namespace App\Mcp\Resource;

use Mcp\Capability\Attribute\McpResource;
use Mcp\Schema\Content\TextContent;

#[McpResource(
    uri: 'inventory://schema/entities',
    name: 'Entity Schema',
    description: 'Complete schema of all inventory entities with their fields, types, and relationships.',
    mimeType: 'application/json'
)]
class SchemaResource
{
    public function __invoke(): array
    {
        $schema = [
            'Machine' => [
                'fields'        => ['id (string)', 'name (string, unique)', 'reference (string?)', 'prix (string?)', 'createdAt', 'updatedAt'],
                'relationships' => ['site (Site, required)', 'constructeurs (Constructeur[])', 'componentLinks (MachineComponentLink[])', 'pieceLinks (MachinePieceLink[])', 'productLinks (MachineProductLink[])', 'customFields (CustomField[])', 'customFieldValues (CustomFieldValue[])'],
            ],
            'Composant' => [
                'fields'        => ['id (string)', 'name (string, unique)', 'reference (string?)', 'description (text?)', 'prix (string?)', 'createdAt', 'updatedAt'],
                'relationships' => ['typeComposant (ModelType?)', 'constructeurs (Constructeur[])', 'pieceSlots (ComposantPieceSlot[])', 'productSlots (ComposantProductSlot[])', 'subcomponentSlots (ComposantSubcomponentSlot[])', 'customFieldValues (CustomFieldValue[])'],
            ],
            'Piece' => [
                'fields'        => ['id (string)', 'name (string)', 'reference (string?, unique)', 'description (text?)', 'prix (string?)', 'createdAt', 'updatedAt'],
                'relationships' => ['typePiece (ModelType?)', 'product (Product?)', 'constructeurs (Constructeur[])', 'productSlots (PieceProductSlot[])', 'customFieldValues (CustomFieldValue[])'],
            ],
            'Product' => [
                'fields'        => ['id (string)', 'name (string, unique)', 'reference (string?)', 'supplierPrice (string?)', 'createdAt', 'updatedAt'],
                'relationships' => ['typeProduct (ModelType?)', 'constructeurs (Constructeur[])'],
            ],
            'Site' => [
                'fields'        => ['id (string)', 'name (string)', 'contactName (string)', 'contactPhone (string)', 'contactAddress (string)', 'contactPostalCode (string)', 'contactCity (string)', 'color (string)', 'createdAt', 'updatedAt'],
                'relationships' => ['machines (Machine[])'],
            ],
            'Constructeur' => [
                'fields'        => ['id (string)', 'name (string, unique)', 'email (string?)', 'phone (string?)', 'createdAt', 'updatedAt'],
                'relationships' => ['machines (Machine[])', 'composants (Composant[])', 'pieces (Piece[])', 'products (Product[])'],
            ],
            'ModelType' => [
                'fields'        => ['id (string)', 'name (string)', 'category (machine|composant|piece|product)', 'code (string?)', 'createdAt', 'updatedAt'],
                'relationships' => ['skeletonPieceRequirements[]', 'skeletonProductRequirements[]', 'skeletonSubcomponentRequirements[]'],
            ],
        ];

        return [new TextContent(text: json_encode($schema, JSON_THROW_ON_ERROR | JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE))];
    }
}