feat: add GetBundledScenarios handler with manifest-driven list

src/Http/Handlers/GetBundledScenarios.php

@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+namespace BattleForge\Http\Handlers;
+
+use BattleForge\Http\Request;
+use BattleForge\Http\Response;
+
+final class GetBundledScenarios
+{
+    private const FILENAME_PATTERN = '/^[a-z0-9-]+\.json$/';
+
+    public function __construct(private readonly string $scenariosDir)
+    {
+    }
+
+    /** @param array<string, string> $params */
+    public function handle(Request $request, array $params): Response
+    {
+        $manifestPath = $this->scenariosDir . '/manifest.json';
+        $manifest = [];
+        if (is_file($manifestPath)) {
+            $decoded = json_decode((string) file_get_contents($manifestPath), true);
+            if (is_array($decoded)) {
+                $manifest = $decoded;
+            }
+        }
+
+        $entries = [];
+        foreach (scandir($this->scenariosDir) ?: [] as $file) {
+            if (!preg_match(self::FILENAME_PATTERN, $file)) {
+                continue;
+            }
+            $id = substr($file, 0, -5);
+            $entry = $manifest[$id] ?? null;
+            if (!is_array($entry) || !isset($entry['name'], $entry['summary'])) {
+                continue;
+            }
+            $entries[] = [
+                'id' => $id,
+                'name' => (string) $entry['name'],
+                'summary' => (string) $entry['summary'],
+            ];
+        }
+
+        usort($entries, static fn (array $a, array $b): int => strcmp($a['id'], $b['id']));
+
+        return Response::json(200, $entries);
+    }
+}

tests/Integration/GetBundledScenariosTest.php

@@ -0,0 +1,102 @@
+<?php
+
+declare(strict_types=1);
+
+namespace BattleForge\Tests\Integration;
+
+use BattleForge\Http\Handlers\GetBundledScenarios;
+use BattleForge\Http\Request;
+use PHPUnit\Framework\TestCase;
+
+final class GetBundledScenariosTest extends TestCase
+{
+    private string $tmpDir;
+
+    protected function setUp(): void
+    {
+        $this->tmpDir = sys_get_temp_dir() . '/bf-bundled-' . bin2hex(random_bytes(4));
+        mkdir($this->tmpDir, 0700, true);
+    }
+
+    protected function tearDown(): void
+    {
+        if (is_dir($this->tmpDir)) {
+            foreach (glob($this->tmpDir . '/*') ?: [] as $file) {
+                unlink($file);
+            }
+            rmdir($this->tmpDir);
+        }
+    }
+
+    public function testReturnsBundledScenariosFromTheConfiguredDirectory(): void
+    {
+        $this->writeManifest([
+            'skirmish' => ['name' => 'Skirmish', 'summary' => 'Open ground.'],
+            'hold-the-line' => ['name' => 'Hold the Line', 'summary' => 'Defend.'],
+        ]);
+        $this->writeFixture('skirmish', '{}');
+        $this->writeFixture('hold-the-line', '{}');
+
+        $handler = new GetBundledScenarios($this->tmpDir);
+        $response = $handler->handle(new Request([], [], [], [], [], '', 'GET', '/scenarios/bundled', null, ''), []);
+
+        self::assertSame(200, $response->status);
+        $body = json_decode($response->body, true);
+        self::assertSame(
+            [
+                ['id' => 'hold-the-line', 'name' => 'Hold the Line', 'summary' => 'Defend.'],
+                ['id' => 'skirmish', 'name' => 'Skirmish', 'summary' => 'Open ground.'],
+            ],
+            $body,
+        );
+    }
+
+    public function testFiltersOutFixturesWithoutAManifestEntry(): void
+    {
+        $this->writeManifest(['skirmish' => ['name' => 'Skirmish', 'summary' => 'Open ground.']]);
+        $this->writeFixture('skirmish', '{}');
+        $this->writeFixture('rogue', '{}');
+
+        $handler = new GetBundledScenarios($this->tmpDir);
+        $response = $handler->handle(new Request([], [], [], [], [], '', 'GET', '/scenarios/bundled', null, ''), []);
+
+        $body = json_decode($response->body, true);
+        self::assertCount(1, $body);
+        self::assertSame('skirmish', $body[0]['id']);
+    }
+
+    public function testIgnoresFilesWithDisallowedFilenames(): void
+    {
+        $this->writeManifest(['skirmish' => ['name' => 'Skirmish', 'summary' => 'Open ground.']]);
+        $this->writeFixture('skirmish', '{}');
+        $this->writeFixture('bad..json', '{}');
+        $this->writeFixture('README', 'plain text');
+
+        $handler = new GetBundledScenarios($this->tmpDir);
+        $response = $handler->handle(new Request([], [], [], [], [], '', 'GET', '/scenarios/bundled', null, ''), []);
+
+        $body = json_decode($response->body, true);
+        self::assertCount(1, $body);
+        self::assertSame('skirmish', $body[0]['id']);
+    }
+
+    public function testReturnsEmptyArrayWhenManifestIsMissing(): void
+    {
+        $handler = new GetBundledScenarios($this->tmpDir);
+        $response = $handler->handle(new Request([], [], [], [], [], '', 'GET', '/scenarios/bundled', null, ''), []);
+
+        self::assertSame(200, $response->status);
+        self::assertSame([], json_decode($response->body, true));
+    }
+
+    /** @param array<string, array{name: string, summary: string}> $entries */
+    private function writeManifest(array $entries): void
+    {
+        file_put_contents($this->tmpDir . '/manifest.json', json_encode($entries, JSON_THROW_ON_ERROR));
+    }
+
+    private function writeFixture(string $name, string $body): void
+    {
+        file_put_contents($this->tmpDir . '/' . $name . '.json', $body);
+    }
+}