<?php

namespace Tests\Integration;

use App\Http\Controllers\admin\SiteConfiguration;
use App\Services\SiteConfigurationService;
use Illuminate\Config\Repository;
use Illuminate\Database\Capsule\Manager;
use Illuminate\Events\Dispatcher;
use Illuminate\Foundation\Application;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Routing\Router;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Facade;
use Illuminate\Translation\ArrayLoader;
use Illuminate\Translation\Translator;
use Illuminate\Validation\Factory;
use Illuminate\Validation\ValidationException;
use PHPUnit\Framework\TestCase;

class SiteConfigurationTest extends TestCase
{
    private Application $app;
    private SiteConfigurationService $service;

    protected function setUp(): void
    {
        Facade::clearResolvedInstances(); $this->app = new Application(dirname(__DIR__, 2));
        $this->app->instance('config', new Repository(['app' => ['locale' => 'zh', 'timezone' => 'Asia/Shanghai']]));
        Facade::setFacadeApplication($this->app);
        $db = new Manager($this->app); $db->addConnection(['driver' => 'sqlite', 'database' => ':memory:', 'prefix' => 'bot_']);
        $db->setEventDispatcher(new Dispatcher($this->app)); $db->setAsGlobal(); $db->bootEloquent();
        $this->app->instance('db', $db->getDatabaseManager()); $this->app->bind('db.schema', fn () => $db->schema());
        $translator = new Translator(new ArrayLoader(), 'zh'); $this->app->instance('translator', $translator);
        $this->app->instance('validator', new Factory($translator, $this->app));
        $this->app->instance('log', new \Psr\Log\NullLogger());
        $this->app->instance(\Illuminate\Contracts\Routing\ResponseFactory::class, new class {
            public function json($data, $status = 200, $headers = [], $options = 0) { return new JsonResponse($data, $status, $headers, $options); }
        });
        $request = Request::create('/admin/site/config'); $request->user = (object) ['id' => 1, 'username' => 'admin']; $this->app->instance('request', $request);
        DB::statement('CREATE TABLE bot_operation_audits (id INTEGER PRIMARY KEY AUTOINCREMENT,resource_type TEXT,resource_id INTEGER,action TEXT,changes TEXT,operator_id INTEGER,operator_name TEXT,created_at TEXT)');
        DB::statement('CREATE TABLE bot_menus (id INTEGER PRIMARY KEY,title TEXT)');
        DB::table('menus')->insert(['id' => 1, 'title' => '前端已有菜单']);
        (require dirname(__DIR__, 2) . '/database/migrations/2026_10_27_120000_create_site_settings.php')->up();
        (require dirname(__DIR__, 2) . '/database/migrations/2026_10_31_120000_add_contents_to_site_setting_translations.php')->up();
        $this->service = new SiteConfigurationService();
    }

    protected function tearDown(): void { DB::disconnect(); Facade::clearResolvedInstances(); parent::tearDown(); }

    private function emptyConfig(): array { return ['translations' => ['zh' => ['content' => []], 'en' => ['content' => []], 'vi' => ['content' => []]], 'domains' => []]; }

    public function test_defaults_and_migration_do_not_require_a_separate_configuration_record_or_touch_menus(): void
    {
        $this->assertSame($this->emptyConfig(), $this->service->get());
        $this->assertSame(1, DB::table('menus')->count());
        $migration = require dirname(__DIR__, 2) . '/database/migrations/2026_10_27_120000_create_site_settings.php';
        $migration->down();
        $this->assertSame('前端已有菜单', DB::table('menus')->value('title'));
        $migration->up();
        (require dirname(__DIR__, 2) . '/database/migrations/2026_10_31_120000_add_contents_to_site_setting_translations.php')->up();
        $this->assertSame($this->emptyConfig(), $this->service->get());
    }

    public function test_both_fields_save_together_preserve_domain_order_and_return_normalized_values(): void
    {
        $result = $this->service->save(['translations' => ['zh' => ['content' => [' 欢迎体验 ', ' 第二条 ', ' ', '', '欢迎体验']], 'en' => ['content' => [' Welcome ', 'Second item']], 'vi' => ['content' => [' Chào mừng ']]], 'domains' => ['example.com', 'https://EXAMPLE.com/', 'HTTP://BACKUP.EXAMPLE:8080/']]);
        $this->assertSame(['translations' => ['zh' => ['content' => ['欢迎体验', '第二条', '欢迎体验']], 'en' => ['content' => ['Welcome', 'Second item']], 'vi' => ['content' => ['Chào mừng']]], 'domains' => ['https://example.com', 'http://backup.example:8080']], $result);
        $this->assertSame($result, $this->service->get());
        $this->assertSame(1, DB::table('operation_audits')->count());
        $this->service->save($result);
        $this->assertSame(1, DB::table('operation_audits')->count());
        $this->assertSame($this->emptyConfig(), $this->service->save(['translations' => [], 'domains' => []]));
    }

    /** @dataProvider invalidPayloads */
    public function test_invalid_configuration_does_not_partially_save(array $payload): void
    {
        try { $this->service->save($payload); $this->fail('Expected validation failure'); }
        catch (ValidationException $e) { $this->assertNotEmpty($e->validator->errors()->all()); }
        $this->assertSame($this->emptyConfig(), $this->service->get());
        $this->assertSame(0, DB::table('operation_audits')->count());
    }

    public static function invalidPayloads(): array
    {
        $base = ['translations' => ['zh' => ['content' => ['测试']]], 'domains' => []];
        return [[['domains' => []]], [['translations' => []]],
            [array_replace($base, ['translations' => ['zh' => ['content' => [str_repeat('字', 2001)]]]])],
            [array_replace($base, ['translations' => ['zh' => ['content' => '旧字符串']]])],
            [array_replace($base, ['translations' => ['zh' => ['content' => '']]])],
            [array_replace($base, ['translations' => ['zh' => ['content' => null]]])],
            [array_replace($base, ['translations' => ['zh' => ['content' => [123]]]])],
            [array_replace($base, ['translations' => ['zh' => ['content' => [false]]]])],
            [array_replace($base, ['translations' => ['zh' => ['content' => [['nested']]]]])],
            [array_replace($base, ['translations' => ['zh' => ['content' => ['first' => '文字']]]])],
            [array_replace($base, ['translations' => ['zh' => ['content' => array_fill(0, 101, '文字')]]])],
            [array_replace($base, ['domains' => ['primary' => 'https://example.com']])],
            [array_replace($base, ['domains' => array_fill(0, 101, 'https://example.com')])],
            [array_replace($base, ['domains' => ['']])], [array_replace($base, ['domains' => [123]])],
            [array_replace($base, ['domains' => ['ftp://example.com']])],
            [array_replace($base, ['domains' => ['javascript:alert(1)']])],
            [array_replace($base, ['domains' => ['https://user:pass@example.com']])],
            [array_replace($base, ['domains' => ['https://example.com/path']])],
            [array_replace($base, ['domains' => ['https://example.com?x=1']])],
            [array_replace($base, ['domains' => ['https://example.com/#fragment']])],
            [array_replace($base, ['translations' => ['fr' => ['content' => ['French']]]])],
            [array_replace($base, ['translations' => ['zh' => '不是对象']])],
            [array_replace($base, ['translations' => ['zh' => ['title' => '未知字段']]])]];
    }

    public function test_translations_are_independent_and_full_replacement_clears_omitted_languages(): void
    {
        $this->service->save(['translations' => ['zh' => ['content' => ['中文']], 'en' => ['content' => ['English']], 'vi' => ['content' => ['Tiếng Việt']]], 'domains' => ['example.com']]);
        $this->assertSame(3, DB::table('site_setting_translations')->count());
        $next = $this->service->save(['translations' => ['zh' => ['content' => ['新中文', '新增一条']]], 'domains' => ['shared.example']]);
        $this->assertSame(['zh' => ['content' => ['新中文', '新增一条']], 'en' => ['content' => []], 'vi' => ['content' => []]], $next['translations']);
        $this->assertSame(['https://shared.example'], $next['domains']);
        $this->assertSame(1, DB::table('site_setting_translations')->count());
    }

    public function test_audit_failure_rolls_back_both_configuration_fields(): void
    {
        $before = $this->service->save(['translations' => ['zh' => ['content' => ['原内容', '原第二条']]], 'domains' => ['example.com']]);
        DB::statement('DROP TABLE bot_operation_audits');
        try { $this->service->save(['translations' => ['zh' => ['content' => ['新内容', '新第二条']]], 'domains' => ['new.example']]); $this->fail('Expected audit failure'); }
        catch (\Illuminate\Database\QueryException $e) { $this->assertSame($before, $this->service->get()); }
    }

    public function test_existing_single_text_survives_migration_and_becomes_one_array_item(): void
    {
        $migration = require dirname(__DIR__, 2) . '/database/migrations/2026_10_31_120000_add_contents_to_site_setting_translations.php';
        $migration->down();
        DB::table('site_setting_translations')->insert([
            ['site_setting_id' => 1, 'language' => 'zh', 'content' => '["原有内容"]'],
            ['site_setting_id' => 1, 'language' => 'en', 'content' => ''],
        ]);
        $migration->up();
        $config = $this->service->get();
        $this->assertSame(['["原有内容"]'], $config['translations']['zh']['content']);
        $this->assertSame([], $config['translations']['en']['content']);
        $config['translations']['zh']['content'][] = '新增一条';
        $this->assertSame($config, $this->service->save($config));
        $this->assertSame($config, $this->service->get());
        $stored = DB::table('site_setting_translations')->where('language', 'zh')->first();
        $this->assertSame('["原有内容"]', $stored->content);
        $this->assertSame($config['translations']['zh']['content'], json_decode($stored->contents, true));
        $migration->down();
        $this->assertSame('["原有内容"]', DB::table('site_setting_translations')->where('language', 'zh')->value('content'));
    }

    public function test_maximum_list_round_trips_and_an_explicit_empty_list_clears_one_language(): void
    {
        $items = array_fill(0, 100, str_repeat('字', 2000));
        $result = $this->service->save(['translations' => ['zh' => ['content' => $items], 'en' => ['content' => ['English']]], 'domains' => []]);
        $this->assertSame($items, $result['translations']['zh']['content']);
        $this->assertSame($result, $this->service->get());
        $result['translations']['zh']['content'] = [];
        $this->assertSame($result, $this->service->save($result));
        $this->assertSame($result, $this->service->get());
        $this->assertSame(['English'], $result['translations']['en']['content']);
    }

    public function test_invalid_list_does_not_change_an_existing_configuration(): void
    {
        $before = $this->service->save(['translations' => ['zh' => ['content' => ['第一条', '第二条']]], 'domains' => ['example.com']]);
        try {
            $this->service->save(['translations' => ['zh' => ['content' => ['first' => '错误列表']]], 'domains' => ['new.example']]);
            $this->fail('Expected validation failure');
        } catch (ValidationException $e) {
            $this->assertSame($before, $this->service->get());
            $this->assertSame(1, DB::table('operation_audits')->count());
        }
    }

    public function test_admin_save_after_request_normalization_ignores_blank_items(): void
    {
        $request = Request::create('/admin/site/config', 'POST', [], [], [], ['CONTENT_TYPE' => 'application/json'], json_encode([
            'translations' => ['zh' => ['content' => [' 第一条 ', '', ' ', '第二条']]], 'domains' => [],
        ], JSON_UNESCAPED_UNICODE));
        $response = (new \App\Http\Middleware\TrimStrings())->handle($request, function ($request) {
            return (new \Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull())->handle($request, function ($request) {
                $this->app->instance('request', $request);
                return (new SiteConfiguration())->save($this->service);
            });
        });
        $this->assertSame(0, $response->getData(true)['code']);
        $this->assertSame(['第一条', '第二条'], $response->getData(true)['data']['translations']['zh']['content']);
        $this->assertSame(['第一条', '第二条'], $this->service->get()['translations']['zh']['content']);
    }

    public function test_one_admin_path_supports_read_and_write_with_authentication_and_permission_checks(): void
    {
        $router = new Router(new Dispatcher($this->app), $this->app); $this->app->instance('router', $router);
        $router->group(['prefix' => 'admin'], function () { require dirname(__DIR__, 2) . '/routes/admin.php'; });
        $get = $router->getRoutes()->match(Request::create('/admin/site/config', 'GET'));
        $post = $router->getRoutes()->match(Request::create('/admin/site/config', 'POST'));
        foreach ([$get, $post] as $route) {
            $this->assertContains('admin.jwt', $route->middleware()); $this->assertContains('check.button.uri', $route->middleware());
        }
        $this->assertContains('operations.admin', $post->middleware());
        $this->assertSame('admin/site/config/save', $post->defaults['permission_uri']);
        $response = (new SiteConfiguration())->show($this->service);
        $this->assertSame(0, $response->getData(true)['code']);
        $this->assertSame($this->emptyConfig(), $response->getData(true)['data']);
        $this->assertStringContainsString('no-store', $response->headers->get('Cache-Control'));
    }
}