Extraction of complex objects

<?php

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

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



use Cognesy\Instructor\Enums\Mode;

use Cognesy\Instructor\Extras\Sequence\Sequence;

use Cognesy\Instructor\Instructor;



$report = <<<'EOT'

    [2021-09-01]

    Acme Insurance project to implement SalesTech CRM solution is currently

    in RED status due to delayed delivery of document production system, led

    by 3rd party vendor - Alfatech. Customer (Acme) is discussing the resolution

    with the vendor. Due to dependencies it will result in delay of the

    ecommerce track by 2 sprints. System integrator (SysCorp) are working

    to absorb some of the delay by deploying extra resources to speed up

    development when the doc production is done. Another issue is that the

    customer is not able to provide the test data for the ecommerce track.

    SysCorp notified it will impact stabilization schedule unless resolved by

    the end of the month. Steerco has been informed last week about the

    potential impact of the issues, but insists on maintaining release schedule

    due to marketing campaign already ongoing. Customer executives are asking

    us - SalesTech team - to confirm SysCorp's assessment of the situation.

    We're struggling with that due to communication issues - SysCorp team has

    not shown up on 2 recent calls. Lack of insight has been escalated to

    SysCorp's leadership team yesterday, but we've got no response yet. The

    previously reported Integration Proxy connectivity issue which was blocking

    policy track has been resolved on 2021-08-30 - the track is now GREEN.

    Production deployment plan has been finalized on Aug 15th and awaiting

    customer approval.

    EOT;



echo "Extracting project events from the report:\n\n";

echo $report . "\n\n";



/** Represents a project event */

class ProjectEvent {

    /** Title of the event - this should be a short, descriptive title of the event */

    public string $title = '';

    /** Concise, informative description of the event */

    public string $description = '';

    /** Type of the event */

    public ProjectEventType $type = ProjectEventType::Other;

    /** Status of the event */

    public ProjectEventStatus $status = ProjectEventStatus::Unknown;

    /** Stakeholders involved in the event */

    /** @var Stakeholder[] */

    public array $stakeholders = [];

    /** Date of the event if reported in the text */

    public ?string $date = '';

}



/** Represents status of project event */

enum ProjectEventStatus: string {

    case Open = 'open';

    case Closed = 'closed';

    case Unknown = 'unknown';

}



/** Represents type of project event */

enum ProjectEventType: string {

    case Risk = 'risk';

    case Issue = 'issue';

    case Action = 'action';

    case Progress = 'progress';

    case Other = 'other';

}



/** Represents a project stakeholder */

class Stakeholder {

    /** Name of the stakeholder */

    public string $name = '';

    /** Role of the stakeholder, if specified */

    public StakeholderRole $role = StakeholderRole::Other;

    /** Any details on the stakeholder, if specified - any mentions of company, organization, structure, group, team, function */

    public ?string $details = '';

}



enum StakeholderRole: string {

    case Customer = 'customer';

    case Vendor = 'vendor';

    case SystemIntegrator = 'system integrator';

    case Other = 'other';

}



$instructor = new Instructor;



echo "PROJECT EVENTS:\n\n";



$events = $instructor

    ->onSequenceUpdate(fn($sequence) => displayEvent($sequence->last()))

    ->request(

        messages: $report,

        responseModel: Sequence::of(ProjectEvent::class),

        model: 'gpt-4o',

        mode: Mode::Tools,

        options: [

            'max_tokens' => 2048,

            'stream' => true,

        ])

    ->get();



echo "TOTAL EVENTS: " . count($events) . "\n";



function displayEvent(ProjectEvent $event) : void {

    echo "Event: {$event->title}\n";

    echo " - Descriptions: {$event->description}\n";

    echo " - Type: {$event->type->value}\n";

    echo " - Status: {$event->status->value}\n";

    echo " - Date: {$event->date}\n";

    if (empty($event->stakeholders)) {

        echo " - Stakeholders: none\n";

    } else {

        echo " - Stakeholders:\n";

        foreach($event->stakeholders as $stakeholder) {

            echo "   - {$stakeholder->name} ({$stakeholder->role->value})\n";

        }

    }

    echo "\n";

}

?>