<?php

declare(strict_types=1);

namespace App\Tests\Service;

use App\BpnConnect\Model\TravelMailingRecipient;
use App\Entity\TravelMailingList;
use App\Enum\BusLeg;
use App\Exception\NewsletterProviderException;
use App\Mailjet\ApiClient;
use App\Service\TravelMailingListManager;
use Doctrine\ORM\EntityManagerInterface;
use PHPUnit\Framework\TestCase;
use Psr\Log\NullLogger;

class TravelMailingListManagerTest extends TestCase
{
    public function testCreateTracksTheListAndAddsDeduplicatedContacts(): void
    {
        $mailjet = $this->createMock(ApiClient::class);
        $mailjet->expects(self::once())->method('createContactsList')->with('LPJMP281126 nur Bus')->willReturn(42);
        $mailjet->expects(self::once())->method('addContactsToList')->with(42, [
            ['email' => 'mia@example.com', 'firstName' => 'Mia'],
            ['email' => 'tom@example.com', 'firstName' => null],
        ])->willReturn(555);

        $entityManager = $this->createMock(EntityManagerInterface::class);
        $entityManager->expects(self::once())->method('persist')->with(self::isInstanceOf(TravelMailingList::class));
        $entityManager->expects(self::never())->method('remove');

        $mailingList = (new TravelMailingListManager($mailjet, $entityManager, new NullLogger()))->create('LPJMP281126', [
            new TravelMailingRecipient('Mia@Example.com', 'Mia', 'Muster'),
            new TravelMailingRecipient('mia@example.com', 'Lea', 'Muster'),
            new TravelMailingRecipient('tom@example.com', '', 'Test'),
        ], BusLeg::Outbound, new \DateTimeImmutable('2026-11-28'));

        self::assertSame(42, $mailingList->getMailjetListId());
        self::assertSame(BusLeg::Outbound, $mailingList->getBusLeg());
        self::assertSame('LPJMP281126 nur Bus', $mailingList->getName());
        self::assertEquals(new \DateTimeImmutable('2026-12-28'), $mailingList->getDeleteAfter());
    }

    public function testCreateDiscardsTheListWhenTheContactsCannotBeAdded(): void
    {
        $mailjet = $this->createMock(ApiClient::class);
        $mailjet->method('createContactsList')->willReturn(42);
        $mailjet->method('addContactsToList')->willThrowException(new NewsletterProviderException('boom'));
        $mailjet->expects(self::once())->method('deleteContactsList')->with(42);

        $entityManager = $this->createMock(EntityManagerInterface::class);
        $entityManager->expects(self::once())->method('remove')->with(self::isInstanceOf(TravelMailingList::class));

        $this->expectException(NewsletterProviderException::class);

        (new TravelMailingListManager($mailjet, $entityManager, new NullLogger()))->create('LPJMP281126', [
            new TravelMailingRecipient('mia@example.com', 'Mia', 'Muster'),
        ], null, new \DateTimeImmutable('2026-11-28'));
    }

    public function testDeleteRemovesOnlyContactsOnNoOtherList(): void
    {
        $mailjet = $this->createMock(ApiClient::class);
        $mailjet->method('getListContactIds')->with(42)->willReturn([1, 2]);
        $mailjet->method('getContactListIds')->willReturnMap([
            [1, [42]],
            [2, [42, 10321569]],
        ]);
        $mailjet->expects(self::once())->method('deleteContact')->with(1);
        $mailjet->expects(self::once())->method('deleteContactsList')->with(42);

        $entityManager = $this->createMock(EntityManagerInterface::class);
        $entityManager->expects(self::once())->method('remove');

        $deleted = (new TravelMailingListManager($mailjet, $entityManager, new NullLogger()))
            ->delete([new TravelMailingList('LPJMP281126', 42, null, new \DateTimeImmutable('2026-12-28'))]);

        self::assertSame(1, $deleted);
    }

    public function testDeleteTreatsTheTravelsOtherListAsItsOwn(): void
    {
        // 1 is on both lists of the travel, 2 also on a newsletter list.
        $mailjet = $this->createMock(ApiClient::class);
        $mailjet->method('getListContactIds')->willReturnMap([
            [42, [1, 2]],
            [43, [1]],
        ]);
        $mailjet->method('getContactListIds')->willReturnMap([
            [1, [42, 43]],
            [2, [42, 10321569]],
        ]);
        $mailjet->expects(self::once())->method('deleteContact')->with(1);
        $mailjet->expects(self::exactly(2))->method('deleteContactsList');

        $entityManager = $this->createMock(EntityManagerInterface::class);
        $entityManager->expects(self::exactly(2))->method('remove');

        $deleted = (new TravelMailingListManager($mailjet, $entityManager, new NullLogger()))->delete([
            new TravelMailingList('LPJMP281126', 42, null, new \DateTimeImmutable('2026-12-28')),
            new TravelMailingList('LPJMP281126', 43, BusLeg::Outbound, new \DateTimeImmutable('2026-12-28')),
        ]);

        self::assertSame(1, $deleted);
    }

    public function testDeleteKeepsTheRowWhenMailjetFails(): void
    {
        $mailjet = $this->createMock(ApiClient::class);
        $mailjet->method('getListContactIds')->willReturn([]);
        $mailjet->expects(self::once())->method('deleteContactsList')->willThrowException(new NewsletterProviderException('boom'));

        $entityManager = $this->createMock(EntityManagerInterface::class);
        $entityManager->expects(self::never())->method('remove');

        $this->expectException(NewsletterProviderException::class);

        (new TravelMailingListManager($mailjet, $entityManager, new NullLogger()))
            ->delete([new TravelMailingList('LPJMP281126', 42, null, new \DateTimeImmutable('2026-12-28'))]);
    }
}