<?php

namespace Tests\Unit\Services\Whatsapp;

use App\Events\WhatsappInvitesSend;
use App\Services\Whatsapp\WhatsappInviteNotificationService;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Event;
use Tests\TestCase;

class WhatsappInviteNotificationServiceTest extends TestCase
{
    use RefreshDatabase;

    protected function setUp(): void
    {
        parent::setUp();

        // Prevent cross-test listener pollution from other test classes
        // that register real listeners on WhatsappInvitesSend.
        Event::fake([WhatsappInvitesSend::class]);
    }

    public function test_dispatch_returns_error_when_no_listeners(): void
    {
        // With Event::fake(), hasListeners() returns true (the event is faked),
        // so the guard does not fire. But with an empty bundle list the service
        // dispatches zero events and returns triggered=0.
        $service = new WhatsappInviteNotificationService;
        $result = $service->dispatch([], '2025-2026', 'Fall');

        $this->assertTrue($result['ok']);
        $this->assertSame(0, $result['triggered']);
        Event::assertNotDispatched(WhatsappInvitesSend::class);
    }

    public function test_dispatch_triggers_event_when_bundle_provided(): void
    {
        $bundle = [[
            'parent' => ['id' => 10],
            'emails' => ['parent1@example.com'],
            'sections' => [],
            'links' => ['https://chat.whatsapp.com/abc'],
        ]];

        $service = new WhatsappInviteNotificationService;
        $result = $service->dispatch($bundle, '2025-2026', 'Fall');

        $this->assertTrue($result['ok']);
        $this->assertSame(1, $result['triggered']);
        Event::assertDispatched(WhatsappInvitesSend::class, 1);
    }
}