<?php

declare(strict_types=1);

namespace BattleForge\Tests\Integration;

use BattleForge\Domain\Archetype;
use BattleForge\Http\CsrfToken;
use BattleForge\Http\Handlers\PostTeamEditor;
use BattleForge\Http\Request;
use PHPUnit\Framework\TestCase;

final class PostTeamEditorTest extends TestCase
{
    private const SECRET = 'unit-test-secret';

    public function testItRejectsARequestWithAMissingCsrfToken(): void
    {
        $handler = new PostTeamEditor();
        $request = $this->buildRequest(post: ['id' => 'demo']);
        $response = $handler->handle($request, ['id' => 'demo']);

        self::assertSame(403, $response->status);
        self::assertStringContainsString('Forbidden', $response->body);
    }

    public function testItRejectsARequestWithAnInvalidCsrfToken(): void
    {
        $handler = new PostTeamEditor();
        $request = $this->buildRequest(post: ['id' => 'demo', '_csrf' => 'tampered']);
        $response = $handler->handle($request, ['id' => 'demo']);

        self::assertSame(403, $response->status);
    }

    public function testItSavesAValidScenarioAndReturnsTheLocalStorageSnippet(): void
    {
        [$token, $cookie] = CsrfToken::issue(self::SECRET);
        $handler = new PostTeamEditor();
        $request = $this->buildRequest(
            post: $this->validPost($token),
            cookies: ['__csrf' => $cookie],
            server: ['__csrf_secret' => self::SECRET],
        );
        $response = $handler->handle($request, ['id' => 'demo']);

        self::assertSame(200, $response->status);
        self::assertStringContainsString('localStorage.setItem', $response->body);
        self::assertStringContainsString('scenario:demo', $response->body);
    }

    public function testItRejectsAnOutOfBoundsStatAndReRendersTheForm(): void
    {
        [$token, $cookie] = CsrfToken::issue(self::SECRET);
        $handler = new PostTeamEditor();
        $post = $this->validPost($token);
        $post['teamA']['units'][0]['maxHealth'] = '9999';
        $request = $this->buildRequest(
            post: $post,
            cookies: ['__csrf' => $cookie],
            server: ['__csrf_secret' => self::SECRET],
        );
        $response = $handler->handle($request, ['id' => 'demo']);

        self::assertSame(200, $response->status);
        self::assertStringContainsString('bf-errors', $response->body);
        self::assertStringContainsString('outside archetype bounds', $response->body);
    }

    /**
     * @param array<string, mixed>  $post
     * @param array<string, string> $cookies
     * @param array<string, string> $server
     */
    private function buildRequest(array $post, array $cookies = [], array $server = []): Request
    {
        return new Request([], $post, [], $cookies, $server, '', 'POST', '/scenarios/demo/edit/team', 'application/x-www-form-urlencoded', '');
    }

    /** @return array<string, mixed> */
    private function validPost(string $token): array
    {
        return [
            '_csrf' => $token,
            'id' => 'demo',
            'name' => 'Demo',
            'battlefieldWidth' => '8',
            'battlefieldHeight' => '8',
            'teamA' => [
                'units' => [
                    ['id' => 'a1', 'archetype' => 'defender', 'maxHealth' => '12', 'attack' => '3', 'defense' => '4', 'speed' => '2', 'x' => '0', 'y' => '0'],
                    ['id' => 'a2', 'archetype' => 'defender', 'maxHealth' => '12', 'attack' => '3', 'defense' => '4', 'speed' => '2', 'x' => '1', 'y' => '0'],
                    ['id' => 'a3', 'archetype' => 'defender', 'maxHealth' => '12', 'attack' => '3', 'defense' => '4', 'speed' => '2', 'x' => '2', 'y' => '0'],
                ],
            ],
            'teamB' => [
                'units' => [
                    ['id' => 'b1', 'archetype' => 'striker', 'maxHealth' => '8', 'attack' => '5', 'defense' => '2', 'speed' => '3', 'x' => '7', 'y' => '7'],
                    ['id' => 'b2', 'archetype' => 'striker', 'maxHealth' => '8', 'attack' => '5', 'defense' => '2', 'speed' => '3', 'x' => '6', 'y' => '7'],
                    ['id' => 'b3', 'archetype' => 'striker', 'maxHealth' => '8', 'attack' => '5', 'defense' => '2', 'speed' => '3', 'x' => '5', 'y' => '7'],
                ],
            ],
            'victoryCondition' => 'eliminate_all',
            'holdRoundsRequired' => '1',
        ];
    }
}