[WIP] Adjust objectql to integrate with dataengine plugin

content/docs/references/system/data-engine.mdx

@@ -0,0 +1,55 @@
+---
+title: Data Engine
+description: Data Engine protocol schemas
+---
+
+# Data Engine
+
+<Callout type="info">
+**Source:** `packages/spec/src/system/data-engine.zod.ts`
+</Callout>
+
+## TypeScript Usage
+
+```typescript
+import { DataEngineSchema, DataEngineFilterSchema, DataEngineQueryOptionsSchema } from '@objectstack/spec/system';
+import type { DataEngine, DataEngineFilter, DataEngineQueryOptions } from '@objectstack/spec/system';
+
+// Validate data
+const result = DataEngineSchema.parse(data);
+```
+
+---
+
+## DataEngine
+
+Data Engine Interface
+
+### Properties
+
+| Property | Type | Required | Description |
+| :--- | :--- | :--- | :--- |
+
+---
+
+## DataEngineFilter
+
+Data Engine query filter conditions
+
+---
+
+## DataEngineQueryOptions
+
+Query options for IDataEngine.find() operations
+
+### Properties
+
+| Property | Type | Required | Description |
+| :--- | :--- | :--- | :--- |
+| **filter** | `Record<string, any>` | optional | Data Engine query filter conditions |
+| **select** | `string[]` | optional |  |
+| **sort** | `Record<string, Enum<'1' \| '-1' \| 'asc' \| 'desc'>>` | optional |  |
+| **limit** | `number` | optional |  |
+| **skip** | `number` | optional |  |
+| **top** | `number` | optional |  |
+

content/docs/references/system/index.mdx

@@ -10,6 +10,7 @@ This section contains all protocol schemas for the system layer of ObjectStack.
 <Cards>
   <Card href="./audit" title="Audit" description="Source: packages/spec/src/system/audit.zod.ts" />
   <Card href="./context" title="Context" description="Source: packages/spec/src/system/context.zod.ts" />
+  <Card href="./data-engine" title="Data Engine" description="Source: packages/spec/src/system/data-engine.zod.ts" />
   <Card href="./datasource" title="Datasource" description="Source: packages/spec/src/system/datasource.zod.ts" />
   <Card href="./driver" title="Driver" description="Source: packages/spec/src/system/driver.zod.ts" />
   <Card href="./events" title="Events" description="Source: packages/spec/src/system/events.zod.ts" />

content/docs/references/system/meta.json

@@ -3,6 +3,7 @@
   "pages": [
     "audit",
     "context",
+    "data-engine",
     "datasource",
     "driver",
     "events",

packages/objectql/src/index.ts

@@ -1,6 +1,7 @@
 import { QueryAST, HookContext } from '@objectstack/spec/data';
 import { ObjectStackManifest } from '@objectstack/spec/system';
 import { DriverInterface, DriverOptions } from '@objectstack/spec/system';
+import { IDataEngine, DataEngineQueryOptions } from '@objectstack/spec/system';
 import { SchemaRegistry } from './registry';
 
 // Export Registry for consumers
@@ -20,8 +21,10 @@ export interface PluginContext {
 
 /**
  * ObjectQL Engine
+ * 
+ * Implements the IDataEngine interface for data persistence.
  */
-export class ObjectQL {
+export class ObjectQL implements IDataEngine {
   private drivers = new Map<string, DriverInterface>();
   private defaultDriver: string | null = null;
 
@@ -211,27 +214,57 @@ export class ObjectQL {
   }
 
   // ============================================
-  // Data Access Methods
+  // Data Access Methods (IDataEngine Interface)
   // ============================================
 
-  async find(object: string, query: any = {}, options?: DriverOptions) {
+  /**
+   * Find records matching a query (IDataEngine interface)
+   * 
+   * @param object - Object name
+   * @param query - Query options (IDataEngine format)
+   * @returns Promise resolving to array of records
+   */
+  async find(object: string, query?: DataEngineQueryOptions): Promise<any[]> {
     const driver = this.getDriver(object);
 
-    // Normalize QueryAST
-    let ast: QueryAST;
-    if (query.where || query.fields || query.orderBy || query.limit) {
-      ast = { object, ...query } as QueryAST;
-    } else {
-      ast = { object, where: query } as QueryAST;
+    // Convert DataEngineQueryOptions to QueryAST
+    let ast: QueryAST = { object };
+
+    if (query) {
+      // Map DataEngineQueryOptions to QueryAST
+      if (query.filter) {
+        ast.where = query.filter;
+      }
+      if (query.select) {
+        ast.fields = query.select;
+      }
+      if (query.sort) {
+        // Convert sort Record to orderBy array
+        // sort: { createdAt: -1, name: 'asc' } => orderBy: [{ field: 'createdAt', order: 'desc' }, { field: 'name', order: 'asc' }]
+        ast.orderBy = Object.entries(query.sort).map(([field, order]) => ({
+          field,
+          order: (order === -1 || order === 'desc') ? 'desc' : 'asc'
+        }));
+      }
+      // Handle both limit and top (top takes precedence)
+      if (query.top !== undefined) {
+        ast.limit = query.top;
+      } else if (query.limit !== undefined) {
+        ast.limit = query.limit;
+      }
+      if (query.skip !== undefined) {
+        ast.offset = query.skip;
+      }
     }
 
+    // Set default limit if not specified
     if (ast.limit === undefined) ast.limit = 100;
 
     // Trigger Before Hook
     const hookContext: HookContext = {
         object,
         event: 'beforeFind',
-        input: { ast, options }, // Hooks can modify AST here
+        input: { ast, options: undefined },
         ql: this
     };
     await this.triggerHooks('beforeFind', hookContext);
@@ -275,7 +308,14 @@ export class ObjectQL {
     return driver.findOne(object, ast, options);
   }
 
-  async insert(object: string, data: Record<string, any>, options?: DriverOptions) {
+  /**
+   * Insert a new record (IDataEngine interface)
+   * 
+   * @param object - Object name
+   * @param data - Data to insert
+   * @returns Promise resolving to the created record
+   */
+  async insert(object: string, data: any): Promise<any> {
     const driver = this.getDriver(object);
 
     // 1. Get Schema
@@ -290,7 +330,7 @@ export class ObjectQL {
     const hookContext: HookContext = {
         object,
         event: 'beforeInsert',
-        input: { data, options },
+        input: { data, options: undefined },
         ql: this
     };
     await this.triggerHooks('beforeInsert', hookContext);
@@ -306,13 +346,21 @@ export class ObjectQL {
     return hookContext.result;
   }
 
-  async update(object: string, id: string | number, data: Record<string, any>, options?: DriverOptions) {
+  /**
+   * Update a record by ID (IDataEngine interface)
+   * 
+   * @param object - Object name
+   * @param id - Record ID
+   * @param data - Updated data
+   * @returns Promise resolving to the updated record
+   */
+  async update(object: string, id: any, data: any): Promise<any> {
     const driver = this.getDriver(object);
 
     const hookContext: HookContext = {
         object,
         event: 'beforeUpdate',
-        input: { id, data, options },
+        input: { id, data, options: undefined },
         ql: this
     };
     await this.triggerHooks('beforeUpdate', hookContext);
@@ -326,13 +374,20 @@ export class ObjectQL {
     return hookContext.result;
   }
 
-  async delete(object: string, id: string | number, options?: DriverOptions) {
+  /**
+   * Delete a record by ID (IDataEngine interface)
+   * 
+   * @param object - Object name
+   * @param id - Record ID
+   * @returns Promise resolving to true if deleted, false otherwise
+   */
+  async delete(object: string, id: any): Promise<boolean> {
     const driver = this.getDriver(object);
 
     const hookContext: HookContext = {
         object,
         event: 'beforeDelete',
-        input: { id, options },
+        input: { id, options: undefined },
         ql: this
     };
     await this.triggerHooks('beforeDelete', hookContext);
@@ -343,6 +398,7 @@ export class ObjectQL {
     hookContext.result = result;
     await this.triggerHooks('afterDelete', hookContext);
 
+    // Driver.delete() already returns boolean per DriverInterface spec
     return hookContext.result;
   }
 }

packages/runtime/src/interfaces/data-engine.ts

@@ -1,122 +1,8 @@
 /**
  * IDataEngine - Standard Data Engine Interface
  * 
- * Abstract interface for data persistence capabilities.
- * This allows plugins to interact with data engines without knowing
- * the underlying implementation (SQL, MongoDB, Memory, etc.).
- * 
- * Follows Dependency Inversion Principle - plugins depend on this interface,
- * not on concrete database implementations.
- */
-
-/**
- * Query filter conditions
- */
-export interface QueryFilter {
-    [field: string]: any;
-}
-
-/**
- * Query options for find operations
+ * Re-exports the data engine interface from the spec package.
+ * This provides backward compatibility for imports from @objectstack/runtime.
  */
-export interface QueryOptions {
-    /** Filter conditions */
-    filter?: QueryFilter;
-    /** Fields to select */
-    select?: string[];
-    /** Sort order */
-    sort?: Record<string, 1 | -1 | 'asc' | 'desc'>;
-    /** Limit number of results (alternative name for top, used by some drivers) */
-    limit?: number;
-    /** Skip number of results (for pagination) */
-    skip?: number;
-    /** Maximum number of results (OData-style, takes precedence over limit if both specified) */
-    top?: number;
-}
 
-/**
- * IDataEngine - Data persistence capability interface
- * 
- * Defines the contract for data engine implementations.
- * Concrete implementations (ObjectQL, Prisma, TypeORM) should implement this interface.
- */
-export interface IDataEngine {
-    /**
-     * Insert a new record
-     * 
-     * @param objectName - Name of the object/table (e.g., 'user', 'order')
-     * @param data - Data to insert
-     * @returns Promise resolving to the created record (including generated ID)
-     * 
-     * @example
-     * ```ts
-     * const user = await engine.insert('user', {
-     *   name: 'John Doe',
-     *   email: 'john@example.com'
-     * });
-     * console.log(user.id); // Auto-generated ID
-     * ```
-     */
-    insert(objectName: string, data: any): Promise<any>;
-
-    /**
-     * Find records matching a query
-     * 
-     * @param objectName - Name of the object/table
-     * @param query - Query conditions (optional)
-     * @returns Promise resolving to an array of matching records
-     * 
-     * @example
-     * ```ts
-     * // Find all users
-     * const allUsers = await engine.find('user');
-     * 
-     * // Find with filter
-     * const activeUsers = await engine.find('user', {
-     *   filter: { status: 'active' }
-     * });
-     * 
-     * // Find with limit and sort
-     * const recentUsers = await engine.find('user', {
-     *   sort: { createdAt: -1 },
-     *   limit: 10
-     * });
-     * ```
-     */
-    find(objectName: string, query?: QueryOptions): Promise<any[]>;
-
-    /**
-     * Update a record by ID
-     * 
-     * @param objectName - Name of the object/table
-     * @param id - Record ID
-     * @param data - Updated data (partial update)
-     * @returns Promise resolving to the updated record
-     * 
-     * @example
-     * ```ts
-     * const updatedUser = await engine.update('user', '123', {
-     *   name: 'Jane Doe',
-     *   email: 'jane@example.com'
-     * });
-     * ```
-     */
-    update(objectName: string, id: any, data: any): Promise<any>;
-
-    /**
-     * Delete a record by ID
-     * 
-     * @param objectName - Name of the object/table
-     * @param id - Record ID
-     * @returns Promise resolving to true if deleted, false otherwise
-     * 
-     * @example
-     * ```ts
-     * const deleted = await engine.delete('user', '123');
-     * if (deleted) {
-     *   console.log('User deleted successfully');
-     * }
-     * ```
-     */
-    delete(objectName: string, id: any): Promise<boolean>;
-}
+export type { IDataEngine, DataEngineQueryOptions, DataEngineFilter } from '@objectstack/spec/system';

packages/runtime/src/objectql-plugin.ts

@@ -44,9 +44,13 @@ export class ObjectQLPlugin implements Plugin {
    * Init phase - Register ObjectQL as a service
    */
   async init(ctx: PluginContext) {
-    // Register ObjectQL engine as a service
+    // Register ObjectQL engine as 'objectql' service (legacy name)
     ctx.registerService('objectql', this.ql);
-    ctx.logger.log('[ObjectQLPlugin] ObjectQL engine registered as service');
+
+    // Register ObjectQL engine as 'data-engine' service (IDataEngine interface)
+    ctx.registerService('data-engine', this.ql);
+
+    ctx.logger.log('[ObjectQLPlugin] ObjectQL engine registered as services: objectql, data-engine');
   }
 
   /**

packages/runtime/src/test-interfaces.ts

@@ -5,7 +5,7 @@
  * and IDataEngine interfaces without depending on concrete implementations.
  */
 
-import { IHttpServer, IDataEngine, RouteHandler, IHttpRequest, IHttpResponse, Middleware, QueryOptions } from './index.js';
+import { IHttpServer, IDataEngine, RouteHandler, IHttpRequest, IHttpResponse, Middleware, DataEngineQueryOptions } from './index.js';
 
 /**
  * Example: Mock HTTP Server Plugin
@@ -77,7 +77,7 @@
         return record;
     }
 
-    async find(objectName: string, query?: QueryOptions): Promise<any[]> {
+    async find(objectName: string, query?: DataEngineQueryOptions): Promise<any[]> {
         const objectStore = this.store.get(objectName);
         if (!objectStore) {
             return [];