<?php

declare(strict_types=1);

namespace Monitor\Api\Tests\Controller;

use Monitor\Api\Controller\TicketController;
use Monitor\Api\Db\Database;
use Monitor\Api\Http\NotFoundException;
use Monitor\Api\Http\Request;
use Monitor\Api\Repository\KpiRepository;
use Monitor\Api\Repository\RepoConfigRepository;
use Monitor\Api\Repository\TicketRepository;
use Monitor\Api\Sync\CodebergClient;
use Monitor\Api\Sync\CodebergSyncService;
use PHPUnit\Framework\TestCase;
use RuntimeException;

/** Testdouble fuer die Resync-Tests unten - liefert nie echte Issues, kann aber auf Wunsch fehlschlagen. */
final class StubCodebergClient implements CodebergClient
{
    public function __construct(private readonly bool $shouldFail = false)
    {
    }

    public function listIssues(string $owner, string $repo, string $state): array
    {
        if ($this->shouldFail) {
            throw new RuntimeException('Codeberg-API nicht erreichbar.');
        }

        return [];
    }

    public function repoPermissions(string $owner, string $repo): array
    {
        return ['push' => true];
    }

    public function listWebhooks(string $owner, string $repo): array
    {
        return [];
    }

    public function countOpenPullRequests(string $owner, string $repo): int
    {
        return 0;
    }
}

final class TicketControllerTest extends TestCase
{
    private TicketController $controller;
    private TicketRepository $repository;

    protected function setUp(): void
    {
        $this->repository = new TicketRepository(Database::inMemory());
        $this->controller = new TicketController(
            $this->repository,
            new CodebergSyncService(
                new StubCodebergClient(),
                $this->repository,
                new RepoConfigRepository(Database::inMemory()),
                new KpiRepository(Database::inMemory())
            )
        );
    }

    public function testIndexReturnsAllTickets(): void
    {
        $this->repository->create(['title' => 'A']);

        $response = $this->controller->index(Request::create('GET', '/api/v1/tickets'));

        self::assertSame(200, $response->status);
        self::assertCount(1, $response->body()['tickets']);
    }

    public function testCreateRejectsMissingTitle(): void
    {
        $response = $this->controller->create(Request::create('POST', '/api/v1/tickets', body: []));

        self::assertSame(422, $response->status);
    }

    public function testCreateReturns201WithTicket(): void
    {
        $response = $this->controller->create(Request::create('POST', '/api/v1/tickets', body: ['title' => 'Neu']));

        self::assertSame(201, $response->status);
        self::assertSame('Neu', $response->body()['ticket']['title']);
    }

    public function testCreateRejectsInvalidColumnWith422(): void
    {
        $response = $this->controller->create(Request::create('POST', '/api/v1/tickets', body: ['title' => 'X', 'column' => 'invalid']));

        self::assertSame(422, $response->status);
    }

    public function testUpdateMovesTicket(): void
    {
        $ticket = $this->repository->create(['title' => 'X']);

        $response = $this->controller->update(
            Request::create('PATCH', '/api/v1/tickets/' . $ticket['id'], body: ['column' => 'bereit']),
            ['id' => (string) $ticket['id']]
        );

        self::assertSame(200, $response->status);
        self::assertSame('bereit', $response->body()['ticket']['column_name']);
    }

    public function testUpdatePropagatesNotFoundForUnknownTicket(): void
    {
        $this->expectException(NotFoundException::class);

        $this->controller->update(
            Request::create('PATCH', '/api/v1/tickets/999', body: ['column' => 'bereit']),
            ['id' => '999']
        );
    }

    public function testResyncRemovesOrphanedTicketOfConfiguredRepoAndReturnsNewBoardState(): void
    {
        // 'fds2610/monitor' ist eines der per Migration seedenden Default-Projekte (siehe
        // 003_repo_configs.sql) - der StubCodebergClient liefert dafuer keine Issues, das
        // Ticket ist also eine Karteileiche im Sinne von Issue #51.
        $this->repository->create([
            'title' => 'Karteileiche',
            'repo' => 'fds2610/monitor',
            'external_ref' => '1',
            'source' => 'codeberg',
        ]);

        $response = $this->controller->resync(Request::create('POST', '/api/v1/tickets/resync'));

        self::assertSame(200, $response->status);
        self::assertSame([], $response->body()['tickets']);
    }

    public function testResyncReturns502WhenCodebergUnreachable(): void
    {
        $repository = new TicketRepository(Database::inMemory());
        $controller = new TicketController(
            $repository,
            new CodebergSyncService(
                new StubCodebergClient(shouldFail: true),
                $repository,
                new RepoConfigRepository(Database::inMemory()),
                new KpiRepository(Database::inMemory())
            )
        );

        $response = $controller->resync(Request::create('POST', '/api/v1/tickets/resync'));

        self::assertSame(502, $response->status);
    }
}