Load front end i18n of plugin automatically

app/Listeners/GeneratePluginTranslations.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace App\Listeners;
+
+use App\Services\Plugin;
+use App\Services\PluginManager;
+use Illuminate\Filesystem\Filesystem;
+
+class GeneratePluginTranslations
+{
+    /** @var Filesystem */
+    protected $filesystem;
+
+    /** @var PluginManager */
+    protected $plugins;
+
+    public function __construct(Filesystem $filesystem, PluginManager $plugins)
+    {
+        $this->filesystem = $filesystem;
+        $this->plugins = $plugins;
+    }
+
+    public function handle()
+    {
+        $plugins = $this->plugins->getEnabledPlugins();
+        $locales = array_keys(config('locales'));
+
+        array_walk($locales, function ($locale) use ($plugins) {
+            $i18n = $plugins
+                ->filter(function (Plugin $plugin) use ($locale) {
+                    return $this->filesystem->exists(
+                        $plugin->getPath()."/lang/$locale/front-end.yml"
+                    );
+                })
+                ->map(function (Plugin $plugin) use ($locale) {
+                    return trans($plugin->namespace.'::front-end');
+                });
+
+            if ($i18n->isNotEmpty()) {
+                $content = 'Object.assign(blessing.i18n, '.
+                    $i18n->toJson(JSON_UNESCAPED_UNICODE).')';
+                $this->filesystem->put(public_path("lang/${locale}_plugin.js"), $content);
+            }
+        });
+    }
+}

app/Providers/EventServiceProvider.php

@@ -23,9 +23,11 @@ class EventServiceProvider extends ServiceProvider
         ],
         'App\Events\PluginWasEnabled' => [
             'App\Listeners\CopyPluginAssets',
+            'App\Listeners\GeneratePluginTranslations',
         ],
         'App\Events\PluginVersionChanged' => [
             'App\Listeners\CopyPluginAssets',
+            'App\Listeners\GeneratePluginTranslations',
         ],
         'App\Events\PluginBootFailed' => [
             'App\Listeners\NotifyFailedPlugin',

app/Services/Translations/JavaScript.php

@@ -38,4 +38,14 @@ class JavaScript
 
         return url("lang/$locale.js?t=$compiledModified");
     }
+
+    public function plugin(string $locale): string
+    {
+        $path = public_path("lang/${locale}_plugin.js");
+        if ($this->filesystem->exists($path)) {
+            return url("lang/${locale}_plugin.js?t=".$this->filesystem->lastModified($path));
+        }
+
+        return '';
+    }
 }

app/Services/Translations/Loader.php

@@ -13,7 +13,7 @@ class Loader extends TranslationLoaderManager
         $full = "{$path}/{$locale}/{$group}.yml";
 
         return count($translations) === 0 && $this->files->exists($full)
-            ? resolve(Yaml::class)->loadYaml($full)
+            ? resolve(Yaml::class)->parse($full)
             : [];
     }
 }

app/Services/Translations/Yaml.php

@@ -15,7 +15,7 @@ class Yaml
         $this->cache = $cache;
     }
 
-    public function loadYaml(string $path): array
+    public function parse(string $path): array
     {
         $key = 'yaml-trans-'.md5($path).'-'.filemtime($path);
 

resources/misc/changelogs/en/5.0.0.md

@@ -15,6 +15,7 @@
 - Refactor account system.
 - PHP version requirement is increased to 7.2.0.
 - Use `install.lock` file to detect status of installation.
+- Load front end i18n text from `lang/front-end.yml` of a plugin automatically.
 
 ## Fixed
 

resources/misc/changelogs/zh_CN/5.0.0.md

@@ -15,6 +15,7 @@
 - 重构用户系统
 - PHP 版本最低要求为 7.2.0
 - 使用 `install.lock` 文件来检测安装状态
+- 插件系统：自动从 `lang/front-end.yml` 中加载前端多语言
 
 ## 修复
 

resources/views/common/dependencies/script.blade.php

@@ -1,5 +1,6 @@
 @inject('intl', 'App\Services\Translations\JavaScript')
 <script src="{{ $intl->generate(app()->getLocale()) }}"></script>
+<script src="{{ $intl->plugin(app()->getLocale()) }}"></script>
 <script src="{{ webpack_assets('index.js') }}"></script>
 <script>{!! option('custom_js') !!}</script>
 {{-- Content added by plugins dynamically --}}

tests/ListenersTest/GeneratePluginTranslationsTest.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Tests;
+
+use App\Services\Plugin;
+use App\Services\PluginManager;
+use App\Events\PluginWasEnabled;
+use Illuminate\Filesystem\Filesystem;
+
+class GeneratePluginTranslationsTest extends TestCase
+{
+    public function testHandle()
+    {
+        config(['locales' => ['en' => [], 'jp' => []]]);
+        $this->mock(PluginManager::class, function ($mock) {
+            $mock->shouldReceive('getEnabledPlugins')
+                ->with()
+                ->once()
+                ->andReturn(collect([new Plugin('/reina', ['namespace' => 'れいな'])]));
+        });
+        $this->mock(Filesystem::class, function ($mock) {
+            $mock->shouldReceive('exists')
+                ->with('/reina/lang/en/front-end.yml')
+                ->once()
+                ->andReturn(false);
+            $mock->shouldReceive('exists')
+                ->with('/reina/lang/jp/front-end.yml')
+                ->once()
+                ->andReturn(true);
+            $mock->shouldReceive('put')
+                ->with(
+                    public_path('lang/jp_plugin.js'),
+                    'Object.assign(blessing.i18n, ["れいな::front-end"])'
+                )
+                ->once();
+        });
+
+        $this->app->call('App\Listeners\GeneratePluginTranslations@handle');
+    }
+}

tests/ServicesTest/TranslationsTest/JavaScriptTest.php

@@ -65,4 +65,25 @@ class JavaScriptTest extends TestCase
 
         $this->assertEquals(url('lang/en.js?t=1'), resolve(JavaScript::class)->generate('en'));
     }
+
+    public function testPlugin()
+    {
+        $this->mock(Filesystem::class, function ($mock) {
+            $mock->shouldReceive('exists')
+                ->with(public_path('lang/en_plugin.js'))
+                ->twice()
+                ->andReturn(false, true);
+            $mock->shouldReceive('lastModified')
+                ->with(public_path('lang/en_plugin.js'))
+                ->once()
+                ->andReturn(1);
+        });
+
+        $this->assertEquals('', resolve(JavaScript::class)->plugin('en'));
+
+        $this->assertEquals(
+            url('lang/en_plugin.js?t=1'),
+            resolve(JavaScript::class)->plugin('en')
+        );
+    }
 }