feat: enhance task driver manager and plugin options

- Added `driver` property to `TaskDriverManager` class for better driver management.
- Introduced `initializeDefaultDriver` option in `TasksPluginOptions` to control default driver initialization.
- Updated documentation to reflect changes in driver setup and options.
- Improved SQLiteDriver with statement caching for better performance.

Author: twlite

apps/website/docs/api-reference/tasks/classes/task-driver-manager.mdx

@@ -41,6 +41,7 @@ const taskId = await manager.createTask({
 
 ```ts title="Signature"
 class TaskDriverManager {
+    public driver: TaskDriver | null = null;
     setDriver(driver: TaskDriver) => void;
     createTask(task: TaskData) => Promise<string>;
     deleteTask(identifier: string) => Promise<void>;
@@ -50,6 +51,11 @@ class TaskDriverManager {
 
 <div className="members-wrapper">
 
+### driver
+
+<MemberInfo kind="property" type={`<a href='/docs/next/api-reference/tasks/interfaces/task-driver#taskdriver'>TaskDriver</a> | null`}   />
+
+
 ### setDriver
 
 <MemberInfo kind="method" type={`(driver: <a href='/docs/next/api-reference/tasks/interfaces/task-driver#taskdriver'>TaskDriver</a>) => void`}   />

apps/website/docs/api-reference/tasks/classes/tasks-plugin.mdx

@@ -13,7 +13,7 @@ import MemberDescription from '@site/src/components/MemberDescription';
 
 ## TasksPlugin
 
-<GenerationInfo sourceFile="packages/tasks/src/plugin.ts" sourceLine="49" packageName="@commandkit/tasks" />
+<GenerationInfo sourceFile="packages/tasks/src/plugin.ts" sourceLine="54" packageName="@commandkit/tasks" />
 
 CommandKit plugin that provides task management capabilities.
 

apps/website/docs/api-reference/tasks/interfaces/tasks-plugin-options.mdx

@@ -13,7 +13,7 @@ import MemberDescription from '@site/src/components/MemberDescription';
 
 ## TasksPluginOptions
 
-<GenerationInfo sourceFile="packages/tasks/src/plugin.ts" sourceLine="25" packageName="@commandkit/tasks" />
+<GenerationInfo sourceFile="packages/tasks/src/plugin.ts" sourceLine="24" packageName="@commandkit/tasks" />
 
 Configuration options for the tasks plugin.
 
@@ -22,6 +22,20 @@ Future versions may support customizing the tasks directory path and HMR behavio
 
 ```ts title="Signature"
 interface TasksPluginOptions {
-
+    initializeDefaultDriver?: boolean;
 }
 ```
+
+<div className="members-wrapper">
+
+### initializeDefaultDriver
+
+<MemberInfo kind="property" type={`boolean`} default={`true`}   />
+
+Whether to initialize the default driver.
+
+If true, the plugin will initialize the default driver.
+If false, the plugin will not initialize the default driver.
+
+
+</div>

apps/website/docs/guide/17-tasks/01-getting-started.mdx

@@ -28,9 +28,10 @@ export default defineConfig({
 });
 ```
 
-## Setting Up a Driver
+## Setting Up a Driver (optional)
 
-Configure a driver before the tasks plugin loads:
+By default, the plugin will initialize the sqlite driver. You can set up a different driver by calling `setDriver` function from the `@commandkit/tasks` package.
+If you want to disable the default driver initialization behavior, you can pass `initializeDefaultDriver: false` to the `tasks()` options in your commandkit config.
 
 ```ts
 import { setDriver } from '@commandkit/tasks';

apps/website/docs/guide/17-tasks/02-task-drivers.mdx

@@ -173,6 +173,10 @@ class CustomDriver implements TaskDriver {
   async create(task: TaskData): Promise<string> {
     // Implement your scheduling logic
     const id = await this.scheduler.schedule(task);
+
+    // invoke the runner function to execute the task (normally, this would be invoked by the scheduler)
+    await this.runner?.(task);
+
     return id;
   }
 

packages/tasks/README.md

@@ -29,7 +29,9 @@ export default defineConfig({
 });
 ```
 
-### 2. Set up a driver
+### 2. Set up a driver (optional)
+
+By default, the plugin will initialize the sqlite driver. You can set up a different driver by calling `setDriver` function from the `@commandkit/tasks` package. If you want to disable the default driver initialization behavior, you can pass `initializeDefaultDriver: false` to the `tasks()` options in your commandkit config.
 
 ```ts
 import { setDriver } from '@commandkit/tasks';

packages/tasks/src/driver-manager.ts

@@ -24,7 +24,7 @@ import { PartialTaskData, TaskData } from './types';
  * ```
  */
 export class TaskDriverManager {
-  private driver: TaskDriver | null = null;
+  public driver: TaskDriver | null = null;
 
   /**
    * Sets the active task driver.

packages/tasks/src/drivers/sqlite.ts

@@ -1,6 +1,6 @@
 import { TaskDriver, TaskRunner } from '../driver';
 import { TaskData } from '../types';
-import { DatabaseSync } from 'node:sqlite';
+import { DatabaseSync, StatementSync } from 'node:sqlite';
 import cronParser from 'cron-parser';
 
 /**
@@ -21,6 +21,14 @@ export class SQLiteDriver implements TaskDriver {
   private runner: TaskRunner | null = null;
   private db: DatabaseSync;
   private interval: NodeJS.Timeout | null = null;
+  private statements!: {
+    count: StatementSync;
+    select: StatementSync;
+    insert: StatementSync;
+    delete: StatementSync;
+    updateNextRun: StatementSync;
+    updateCompleted: StatementSync;
+  };
 
   /**
    * Create a new SQLiteDriver instance.
@@ -43,7 +51,7 @@ export class SQLiteDriver implements TaskDriver {
    * Initialize the jobs table and start the polling loop.
    */
   private init() {
-    this.db.exec(`CREATE TABLE IF NOT EXISTS jobs (
+    this.db.exec(/* sql */ `CREATE TABLE IF NOT EXISTS jobs (
       id INTEGER PRIMARY KEY AUTOINCREMENT,
       name TEXT NOT NULL,
       data TEXT,
@@ -55,6 +63,26 @@ export class SQLiteDriver implements TaskDriver {
       created_at INTEGER NOT NULL,
       last_run INTEGER
     )`);
+
+    this.statements = {
+      count: this.db.prepare(
+        /* sql */ `SELECT COUNT(*) as count FROM jobs WHERE status = 'pending' AND next_run <= ?`,
+      ),
+      select: this.db.prepare(
+        /* sql */ `SELECT * FROM jobs WHERE status = 'pending' AND next_run <= ? ORDER BY next_run ASC LIMIT ? OFFSET ?`,
+      ),
+      insert: this.db.prepare(
+        /* sql */ `INSERT INTO jobs (name, data, schedule_type, schedule_value, timezone, next_run, status, created_at) VALUES (?, ?, ?, ?, ?, ?, 'pending', ?)`,
+      ),
+      delete: this.db.prepare(/* sql */ `DELETE FROM jobs WHERE id = ?`),
+      updateNextRun: this.db.prepare(
+        /* sql */ `UPDATE jobs SET next_run = ?, last_run = ? WHERE id = ?`,
+      ),
+      updateCompleted: this.db.prepare(
+        /* sql */ `UPDATE jobs SET status = 'completed', last_run = ? WHERE id = ?`,
+      ),
+    };
+
     this.startPolling();
   }
 
@@ -82,10 +110,7 @@ export class SQLiteDriver implements TaskDriver {
       nextRun = typeof schedule === 'number' ? schedule : schedule.getTime();
     }
 
-    const stmt = this.db.prepare(
-      `INSERT INTO jobs (name, data, schedule_type, schedule_value, timezone, next_run, status, created_at) VALUES (?, ?, ?, ?, ?, ?, 'pending', ?)`,
-    );
-    const result = stmt.run(
+    const result = this.statements.insert.run(
       name,
       JSON.stringify(data ?? {}),
       scheduleType,
@@ -111,8 +136,7 @@ export class SQLiteDriver implements TaskDriver {
    * @param identifier Job ID
    */
   async delete(identifier: string): Promise<void> {
-    const stmt = this.db.prepare(`DELETE FROM jobs WHERE id = ?`);
-    stmt.run(identifier);
+    this.statements.delete.run(identifier);
   }
 
   /**
@@ -129,7 +153,7 @@ export class SQLiteDriver implements TaskDriver {
    */
   private startPolling() {
     if (this.interval) clearInterval(this.interval);
-    this.interval = setInterval(() => this.pollJobs(), 1000);
+    this.interval = setInterval(() => this.pollJobs(), 1000).unref();
     // Run immediately on startup
     this.pollJobs();
   }
@@ -140,24 +164,30 @@ export class SQLiteDriver implements TaskDriver {
   private pollJobs() {
     if (!this.runner) return;
     const now = Date.now();
-    const stmt = this.db.prepare(
-      `SELECT * FROM jobs WHERE status = 'pending' AND next_run <= ?`,
-    );
-    const rows = stmt.all(now) as Array<{
-      id: number;
-      name: string;
-      data: string;
-      schedule_type: string;
-      schedule_value: string;
-      timezone: string | null;
-      next_run: number;
-      status: string;
-      created_at: number;
-      last_run: number | null;
-    }>;
-
-    for (const job of rows) {
-      this.executeJob(job);
+    const chunkSize = 10;
+
+    const countResult = this.statements.count.get(now) as { count: number };
+    const totalJobs = countResult.count;
+
+    if (totalJobs === 0) return;
+
+    for (let offset = 0; offset < totalJobs; offset += chunkSize) {
+      const rows = this.statements.select.all(now, chunkSize, offset) as Array<{
+        id: number;
+        name: string;
+        data: string;
+        schedule_type: string;
+        schedule_value: string;
+        timezone: string | null;
+        next_run: number;
+        status: string;
+        created_at: number;
+        last_run: number | null;
+      }>;
+
+      for (const job of rows) {
+        this.executeJob(job);
+      }
     }
   }
 
@@ -202,21 +232,12 @@ export class SQLiteDriver implements TaskDriver {
         nextRun = null;
       }
       if (nextRun) {
-        const stmt = this.db.prepare(
-          `UPDATE jobs SET next_run = ?, last_run = ? WHERE id = ?`,
-        );
-        stmt.run(nextRun, now, job.id);
+        this.statements.updateNextRun.run(nextRun, now, job.id);
       } else {
-        const stmt = this.db.prepare(
-          `UPDATE jobs SET status = 'completed', last_run = ? WHERE id = ?`,
-        );
-        stmt.run(now, job.id);
+        this.statements.updateCompleted.run(now, job.id);
       }
     } else {
-      const stmt = this.db.prepare(
-        `UPDATE jobs SET status = 'completed', last_run = ? WHERE id = ?`,
-      );
-      stmt.run(now, job.id);
+      this.statements.updateCompleted.run(now, job.id);
     }
   }
 }

packages/tasks/src/index.ts

@@ -27,7 +27,10 @@ import { TasksPlugin, TasksPluginOptions } from './plugin';
  * @returns A configured tasks plugin instance
  */
 export function tasks(options?: TasksPluginOptions) {
-  return new TasksPlugin(options ?? {});
+  return new TasksPlugin({
+    initializeDefaultDriver: true,
+    ...options,
+  });
 }
 
 export * from './plugin';

packages/tasks/src/plugin.ts

@@ -1,5 +1,4 @@
 import {
-  CommandKit,
   CommandKitPluginRuntime,
   Logger,
   RuntimePlugin,
@@ -23,9 +22,15 @@ import { existsSync } from 'node:fs';
  * Future versions may support customizing the tasks directory path and HMR behavior.
  */
 export interface TasksPluginOptions {
-  // Future options may include:
-  // tasksPath?: string;
-  // enableHMR?: boolean;
+  /**
+   * Whether to initialize the default driver.
+   *
+   * If true, the plugin will initialize the default driver.
+   * If false, the plugin will not initialize the default driver.
+   *
+   * @default true
+   */
+  initializeDefaultDriver?: boolean;
 }
 
 /**
@@ -64,6 +69,19 @@ export class TasksPlugin extends RuntimePlugin<TasksPluginOptions> {
    * @param ctx - The CommandKit plugin runtime context
    */
   public async activate(ctx: CommandKitPluginRuntime): Promise<void> {
+    if (this.options.initializeDefaultDriver && !taskDriverManager.driver) {
+      try {
+        const { SQLiteDriver } =
+          require('./drivers/sqlite') as typeof import('./drivers/sqlite');
+
+        taskDriverManager.setDriver(new SQLiteDriver());
+      } catch (e: any) {
+        Logger.error(
+          `Failed to initialize the default driver for tasks plugin: ${e?.stack || e}`,
+        );
+      }
+    }
+
     taskDriverManager.setTaskRunner(async (task) => {
       try {
         const taskInstance = this.tasks.get(task.name);