<?php

declare(strict_types=1);

namespace Monitor\Api\Tests;

use Monitor\Api\Application;
use Monitor\Api\Config;
use Monitor\Api\Db\Database;
use Monitor\Api\Http\Request;
use PHPUnit\Framework\TestCase;

final class ApplicationTest extends TestCase
{
    private Application $app;

    protected function setUp(): void
    {
        $config = new Config(['MONITOR_ADMIN_API_KEY' => 'admin-secret', 'MONITOR_STATUS_FILE' => '/does/not/exist']);
        $this->app = new Application(Database::inMemory(), $config);
    }

    public function testUnknownRouteReturns404(): void
    {
        $response = $this->app->handle(Request::create('GET', '/nope'));

        self::assertSame(404, $response->status);
    }

    public function testWrongMethodReturns405(): void
    {
        $response = $this->app->handle(Request::create('DELETE', '/api/v1/tickets'));

        self::assertSame(405, $response->status);
    }

    public function testWritingWithoutAgentKeyReturns401(): void
    {
        $response = $this->app->handle(Request::create('POST', '/api/v1/tickets', body: ['title' => 'X']));

        self::assertSame(401, $response->status);
    }

    public function testRegisterAgentRequiresAdminKey(): void
    {
        $response = $this->app->handle(Request::create('POST', '/api/v1/agents', body: [
            'display_name' => 'Alice', 'role' => 'entwickler',
        ]));

        self::assertSame(401, $response->status);
    }

    public function testFullFlowRegisterAgentThenCreateTicket(): void
    {
        $registerResponse = $this->app->handle(Request::create(
            'POST',
            '/api/v1/agents',
            body: ['display_name' => 'Alice', 'role' => 'entwickler'],
            headers: ['X-Admin-Key' => 'admin-secret']
        ));
        self::assertSame(201, $registerResponse->status);
        $apiKey = $registerResponse->body()['api_key'];

        $createResponse = $this->app->handle(Request::create(
            'POST',
            '/api/v1/tickets',
            body: ['title' => 'Neues Ticket'],
            headers: ['X-Api-Key' => $apiKey]
        ));
        self::assertSame(201, $createResponse->status);

        $listResponse = $this->app->handle(Request::create('GET', '/api/v1/tickets'));
        self::assertCount(1, $listResponse->body()['tickets']);
    }

    /**
     * Regression: Ein unbekanntes Ticket lief bis in die FOREIGN-KEY-Constraint und kam als
     * ungefangene PDOException samt Stacktrace beim Client an.
     */
    public function testActivityWithUnknownTicketReturns422WithoutInternals(): void
    {
        $registerResponse = $this->app->handle(Request::create(
            'POST',
            '/api/v1/agents',
            body: ['display_name' => 'Alice', 'role' => 'entwickler'],
            headers: ['X-Admin-Key' => 'admin-secret']
        ));
        $apiKey = $registerResponse->body()['api_key'];
        $agentId = $registerResponse->body()['agent']['id'];

        $response = $this->app->handle(Request::create(
            'POST',
            '/api/v1/agents/' . $agentId . '/activity',
            body: ['state' => 'working', 'current_ticket' => 999],
            headers: ['X-Api-Key' => $apiKey]
        ));

        self::assertSame(422, $response->status);
        self::assertStringNotContainsString('PDOException', json_encode($response->body()));
    }

    public function testPatchUnknownTicketReturns404(): void
    {
        $registerResponse = $this->app->handle(Request::create(
            'POST',
            '/api/v1/agents',
            body: ['display_name' => 'Alice', 'role' => 'entwickler'],
            headers: ['X-Admin-Key' => 'admin-secret']
        ));
        $apiKey = $registerResponse->body()['api_key'];

        $response = $this->app->handle(Request::create(
            'PATCH',
            '/api/v1/tickets/999',
            body: ['column' => 'bereit'],
            headers: ['X-Api-Key' => $apiKey]
        ));

        self::assertSame(404, $response->status);
    }
}