add param for source language

config/googletranslate.php

@@ -1,6 +1,13 @@
 <?php
 
 return [
+    /*
+      |----------------------------------------------------------------------------------------------------
+      | The ISO 639-1 code of the default source language.
+      |----------------------------------------------------------------------------------------------------
+      */
+    'default_source_translation' => 'en',
+
     /*
       |----------------------------------------------------------------------------------------------------
       | The ISO 639-1 code of the language in lowercase to which the text will be translated to by default.

src/GoogleTranslate.php

@@ -57,25 +57,27 @@ public function detectLanguageBatch(array $input): array
         return $translations;
     }
 
-    public function translate($input, $to = null, $format = 'text'): array
+    public function translate($input, $from = null, $to = null, $format = 'text'): array
     {
         $this->validateInput($input);
 
+        $translateFrom = $from ?? config('googletranslate.default_source_translation');
         $translateTo = $to ?? config('googletranslate.default_target_translation');
 
+        $translateFrom = $this->sanitizeLanguageCode($translateFrom);
         $translateTo = $this->sanitizeLanguageCode($translateTo);
 
         if (is_array($input)) {
-            return $this->translateBatch($input, $translateTo, $format);
+            return $this->translateBatch($input, $translateFrom, $translateTo, $format);
         }
 
         $response = $this
             ->translateClient
-            ->translate($input, $translateTo, $format);
+            ->translate($input, $translateFrom, $translateTo, $format);
 
         return [
             'source_text' => $input,
-            'source_language_code' => $response['source'],
+            'source_language_code' => $translateFrom,
             'translated_text' => $response['text'],
             'translated_language_code' => $translateTo
         ];
@@ -96,20 +98,21 @@ public function justTranslate(string $input, $to = null): string
         return $response['text'];
     }
 
-    public function translateBatch(array $input, string $translateTo, $format = 'text'): array
+    public function translateBatch(array $input, string $translateFrom, string $translateTo, $format = 'text'): array
     {
+        $translateFrom = $this->sanitizeLanguageCode($translateFrom);
         $translateTo = $this->sanitizeLanguageCode($translateTo);
 
         $this->validateInput($input);
 
         $responses = $this
             ->translateClient
-            ->translateBatch($input, $translateTo, $format);
+            ->translateBatch($input, $translateFrom, $translateTo, $format);
 
         foreach ($responses as $response) {
             $translations[] = [
                 'source_text' => $response['input'],
-                'source_language_code' => $response['source'],
+                'source_language_code' => $translateFrom,
                 'translated_text' => $response['text'],
                 'translated_language_code' => $translateTo
             ];

src/GoogleTranslateClient.php

@@ -32,16 +32,16 @@ public function detectLanguageBatch(array $input)
             ->detectLanguageBatch($input);
     }
 
-    public function translate(string $text, string $translateTo, string $format = 'text')
+    public function translate(string $text, string $translateFrom, string $translateTo, string $format = 'text')
     {
         return $this->translate
-            ->translate($text, ['target' => $translateTo, 'format' => $format]);
+            ->translate($text, ['source' => $translateFrom, 'target' => $translateTo, 'format' => $format]);
     }
 
-    public function translateBatch(array $input, string $translateTo, string $format = 'text')
+    public function translateBatch(array $input, string $translateFrom, string $translateTo, string $format = 'text')
     {
         return $this->translate
-            ->translateBatch($input, ['target' => $translateTo, 'format' => $format]);
+            ->translateBatch($input, ['source' => $translateFrom, 'target' => $translateTo, 'format' => $format]);
     }
 
     public function getAvaliableTranslationsFor(string $languageCode)

tests/GoogleTranslateTest.php

@@ -74,11 +74,11 @@ public function it_can_detect_the_language_of_an_array_of_strings_passed_to_it()
     public function it_can_translate_the_string_passed_to_it()
     {
         $this->translateClient
-            ->shouldReceive('translate')->with($this->testString, 'hi', 'text')
+            ->shouldReceive('translate')->with($this->testString, 'en', 'hi', 'text')
             ->once()
             ->andReturn(['source' => 'en', 'text' => '']);
 
-        $response = $this->translate->translate($this->testString, 'hi');
+        $response = $this->translate->translate($this->testString, 'en', 'hi');
 
         $this->assertIsArray($response);
 
@@ -92,11 +92,11 @@ public function it_can_translate_the_string_passed_to_it()
     public function it_can_translate_the_html_string_passed_to_it()
     {
         $this->translateClient
-            ->shouldReceive('translate')->with($this->testHtmlString, 'hi', 'html')
+            ->shouldReceive('translate')->with($this->testHtmlString, 'en', 'hi', 'html')
             ->once()
             ->andReturn(['source' => 'en', 'text' => '']);
 
-        $response = $this->translate->translate($this->testHtmlString, 'hi', 'html');
+        $response = $this->translate->translate($this->testHtmlString, 'en', 'hi', 'html');
 
         $this->assertIsArray($response);
 
@@ -110,14 +110,14 @@ public function it_can_translate_the_html_string_passed_to_it()
     public function it_can_translate_an_array_of_strings_passed_to_it()
     {
         $this->translateClient
-            ->shouldReceive('translateBatch')->with([$this->testString, $this->testString], 'hi', 'text')
+            ->shouldReceive('translateBatch')->with([$this->testString, $this->testString], 'en', 'hi', 'text')
             ->once()
             ->andReturn([
                 ['source' => 'en', 'text' => '', 'input' => $this->testString],
                 ['source' => 'en', 'text' => '', 'input' => $this->testString]
             ]);
 
-        $response = $this->translate->translate([$this->testString, $this->testString], 'hi');
+        $response = $this->translate->translate([$this->testString, $this->testString], 'en', 'hi');
 
         $this->assertIsArray($response);