Create tasks from meeting transcription

<?php

$loader = require 'vendor/autoload.php';

$loader->add('Cognesy\\Instructor\\', __DIR__ . '../../src/');



use Cognesy\Instructor\Enums\Mode;

use Cognesy\Instructor\Instructor;



// Step 1: Define a class that represents the structure and semantics

// of the data you want to extract

enum TaskStatus : string {

    case Pending = 'pending';

    case Completed = 'completed';

}



enum Role : string {

    case PM = 'pm';

    case Dev = 'dev';

}



class Task {

    public string $title;

    public string $description;

    public DateTimeImmutable $dueDate;

    public Role $owner;

    public TaskStatus $status;

}



class Tasks {

    public DateTime $meetingDate;

    /** @var Task[] */

    public array $tasks;

}



// Step 2: Get the text (or chat messages) you want to extract data from

$text = <<<TEXT

Transcription of meeting from 2024-01-15, 16:00

---

PM: Hey, how's progress on the video transcription engine?

Dev: I've got basic functionality working, but accuracy isn't great yet. Might need to switch to a different API.

PM: So the plan is to research alternatives and provide a comparison? Is it possible by Jan 20th?

Dev: Sure, I'll make it available before the meeting.

PM: The one at 12?

Dev: Yes, at 12. By the way, are we still planning to support real-time transcription?

PM: Yes, it's a key feature. Speaking of which, I need to update the product roadmap. I'll have that ready by Jan 18th.

Dev: Got it. I'll keep that in mind while evaluating APIs. Oh, and the UI for the summary view is ready for review.

PM: Great, I'll take a look tomorrow by 10.

TEXT;



print("Input text:\n");

print($text . "\n\n");



// Step 3: Extract structured data using default language model API (OpenAI)

print("Extracting structured data using LLM...\n\n");

$tasks = (new Instructor)->respond(

    messages: $text,

    responseModel: Tasks::class,

    model: 'gpt-4o',

    mode: Mode::Json,

);



// Step 4: Now you can use the extracted data in your application

print("Extracted data:\n");



dump($tasks);



assert($tasks->meetingDate->format('Y-m-d') === '2024-01-15');

assert(count($tasks->tasks) == 3);



assert($tasks->tasks[0]->dueDate->format('Y-m-d') === '2024-01-20');

assert($tasks->tasks[0]->status === TaskStatus::Pending);

assert($tasks->tasks[0]->owner === Role::Dev);



assert($tasks->tasks[1]->dueDate->format('Y-m-d') === '2024-01-18');

assert($tasks->tasks[1]->status === TaskStatus::Pending);

assert($tasks->tasks[1]->owner === Role::PM);



assert($tasks->tasks[2]->dueDate->format('Y-m-d') === '2024-01-16');

assert($tasks->tasks[2]->status === TaskStatus::Pending);

assert($tasks->tasks[2]->owner === Role::PM);

?>