simplify prettying

Signed-off-by: Klein Florian <florian.klein@free.fr>

Author: docteurklein

README.md

@@ -1,7 +1,7 @@
 # json-chunks
 
 ```php
-$chunks = (new DocteurKlein\JsonChunks\Encode)([
+$chunks = DocteurKlein\JsonChunks\Encode::from([
     '_links' => [
         'product' => function() {
             yield from [1, 2, 3];

spec/EncodeSpec.php

@@ -10,7 +10,7 @@ class EncodeSpec extends ObjectBehavior
 {
     function it_is_valid_json()
     {
-        $actual = $this([
+        $actual = $this::from([
             '_links' => [
                 'product' => function() {
                     yield from [1, 2, 3];
@@ -55,7 +55,7 @@ function it_is_valid_json()
     function it_allows_empty_generators()
     {
         $i = new class implements \IteratorAggregate {function getIterator(){return (function(){yield from [];})();}};
-        $actual = $this([
+        $actual = $this::from([
             'sub' => function() use($i) {
                 yield from $i;
             },
@@ -74,7 +74,7 @@ function jsonSerialize() {
                 return [(function(){yield from ['from-obj'];})()];
             }
         };
-        $actual = $this([
+        $actual = $this::from([
             'sub' => function() use($obj) {
                 yield from [$obj];
             },

src/Encode.php

@@ -9,22 +9,25 @@ final class Encode
     private const ARRAY_START = '[';
     private const ARRAY_END = ']';
 
-    public function __invoke(iterable $schema, int $level = 0): \Generator
+    public static function from(iterable $schema, bool $pretty = false): \Generator
     {
+        if ($pretty) {
+            yield from self::pretty($schema);
+            return;
+        }
+
         $key = $schema instanceof \Iterator ? $schema->key() : key($schema);
         if (null === $key) {
             yield '[]';
             return;
         }
         $isHash = is_string($key);
 
-        yield ($isHash ? self::HASH_START : self::ARRAY_START).PHP_EOL;
+        yield ($isHash ? self::HASH_START : self::ARRAY_START);
 
-        $indentation = str_repeat('    ', $level);
         $isFirst = true;
         foreach ($schema as $key => $child) {
-            $comma = $isFirst ? '' : ', '.PHP_EOL;
-            yield $comma.$indentation;
+            yield $isFirst ? '' : ', ';
             $isFirst = false;
 
             if ($isHash) {
@@ -35,18 +38,23 @@ public function __invoke(iterable $schema, int $level = 0): \Generator
                 $child = $child();
             }
             if (is_iterable($child)) {
-                yield from ($this)($child, $level + 1);
+                yield from self::from($child);
                 continue;
             }
             if (is_object($child)) {
                 if ($child instanceof \JsonSerializable) {
-                    yield from ($this)($child->jsonSerialize(), $level + 1);
+                    yield from self::from($child->jsonSerialize());
                     continue;
                 }
             }
             yield json_encode($child).PHP_EOL;
         }
 
-        yield PHP_EOL.$indentation.($isHash ? self::HASH_END : self::ARRAY_END);
+        yield ($isHash ? self::HASH_END : self::ARRAY_END);
+    }
+
+    public static function pretty(iterable $schema): \Generator
+    {
+        yield from [json_encode(json_decode(implode(iterator_to_array(self::from($schema), false))), JSON_PRETTY_PRINT)];
     }
 }