feat: Added Chinese and support "Present" translations (#245)

Co-authored-by: Jonah Lawrence <jonah@freshidea.com>

Author: bojun1995

src/card.php

@@ -121,7 +121,9 @@ function generateCard(array $stats, array $params = null): string
     $translations = include "translations.php";
     // get requested locale, default to English
     $localeCode = $params["locale"] ?? "en";
-    $localeTranslations = $translations[$localeCode] ?? $translations["en"];
+    $localeTranslations = $translations[$localeCode] ?? [];
+    // add missing translations from English
+    $localeTranslations += $translations["en"];
 
     // get date format
     // locale date formatter (used only if date_format is not specified)
@@ -133,7 +135,7 @@ function generateCard(array $stats, array $params = null): string
     // total contributions
     $totalContributions = $numFormatter->format($stats["totalContributions"]);
     $firstContribution = formatDate($stats["firstContribution"], $dateFormat, $localeCode);
-    $totalContributionsRange = $firstContribution . " - Present";
+    $totalContributionsRange = $firstContribution . " - " . $localeTranslations["Present"];
 
     // current streak
     $currentStreak = $numFormatter->format($stats["currentStreak"]["length"]);

src/translations.php

@@ -24,6 +24,7 @@
         "Total Contributions" => "Total Contributions",
         "Current Streak" => "Current Streak",
         "Longest Streak" => "Longest Streak",
+        "Present" => "Present",
     ],
     "de" => [
         "Total Contributions" => "Gesamte Beiträge",
@@ -40,6 +41,7 @@
         "Total Contributions" => "総ｺﾝﾄﾘﾋﾞｭｰｼｮﾝ数",
         "Current Streak" => "現在のストリーク",
         "Longest Streak" => "最長のストリーク",
+        "Present" => "今",
     ],
     "tr" => [
         "Total Contributions" => "Toplam Katkı",
@@ -51,4 +53,10 @@
         "Current Streak" => "Atual Sequência",
         "Longest Streak" => "Maior Sequência",
     ],
+    "zh" => [
+        "Total Contributions" => "合计贡献",
+        "Current Streak" => "最近连续贡献",
+        "Longest Streak" => "最长连续贡献",
+        "Present" => "至今",
+    ],
 ];

tests/TranslationsTest.php

@@ -0,0 +1,30 @@
+<?php
+
+declare(strict_types=1);
+
+use PHPUnit\Framework\TestCase;
+
+// load functions
+require_once dirname(__DIR__, 1) . '/vendor/autoload.php';
+
+final class TranslationsTest extends TestCase
+{
+    /**
+     * Test that all locales only contain phrases appearing for the locale "en"
+     * or "date_format"
+     */
+    public function testAllPhrasesValid(): void
+    {
+        $translations = include 'src/translations.php';
+        $locales = array_keys($translations);
+        $valid_phrases = array_merge(array_keys($translations['en']), ['date_format']);
+        foreach ($locales as $locale) {
+            $phrases = array_keys($translations[$locale]);
+            $this->assertEquals(
+                array_diff($phrases, $valid_phrases),
+                [],
+                "Locale $locale contains invalid phrases"
+            );
+        }
+    }
+}