Add Map expression

Signed-off-by: davidarendsen <davidarendsen@hey.com>

src/Expression/KeyFilter.php

@@ -204,4 +204,4 @@ class KeyFilter extends Base
             throw new Exception('Operator "' . $operator . '" is not supported!');
         }
     }
-}
+}

src/Expression/KeyValue.php

@@ -207,4 +207,4 @@ class KeyValue extends Base
             throw new Exception('Operator "' . $operator . '" is not supported!');
         }
     }
-}
+}

src/Expression/Map.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Expression;
+
+use Arendsen\FluxQueryBuilder\Type\FieldRecordType;
+
+class Map extends Base
+{
+    private static $string;
+
+    public static function with(string $name, string $content): Map
+    {
+        self::$string = 'r with ' . $name . ': ' . $content;
+        return new self();
+    }
+
+    public static function columns(array $columns)
+    {
+        self::$string = new FieldRecordType($columns);
+        return new self();
+    }
+
+    public function __toString()
+    {
+        return self::$string;
+    }
+}

src/Expression/Selection.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Expression;
+
+use Arendsen\FluxQueryBuilder\Type;
+
+class Selection extends Base
+{
+    private $string;
+
+    private function __construct(string $string)
+    {
+        $this->string = $string;
+    }
+
+    public static function if(string $value): Selection
+    {
+        return new self('if ' . $value);
+    }
+
+    public function then($then): Selection
+    {
+        $this->string .= ' then ' . new Type($then);
+        return $this;
+    }
+
+    public function else($else): Selection
+    {
+        $this->string .= ' else ' . new Type($else);
+        return $this;
+    }
+
+    public function __toString()
+    {
+        return $this->string;
+    }
+}

src/Functions/Map.php

@@ -2,14 +2,16 @@
 
 namespace Arendsen\FluxQueryBuilder\Functions;
 
+use Arendsen\FluxQueryBuilder\Expression\Map as MapExpression;
+
 class Map extends Base
 {
     /**
-     * @var array $query
+     * @var mixed $query
      */
     private $query;
 
-    public function __construct(string $query)
+    public function __construct($query)
     {
         $this->query = $query;
     }

src/QueryBuilder.php

@@ -158,7 +158,7 @@ class QueryBuilder
         return $this;
     }
 
-    public function addMap(string $query): QueryBuilder
+    public function addMap($query): QueryBuilder
     {
         $this->addToQuery(
             self::FLUX_PART_MAP,

src/Type/FieldRecordType.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Type;
+
+use Arendsen\FluxQueryBuilder\Settings;
+use Arendsen\FluxQueryBuilder\Type;
+
+class FieldRecordType implements TypeInterface
+{
+    public const SETTING_IS_RECORD = 'isRecord';
+
+    public function __construct(array $value)
+    {
+        $this->value = $value;
+    }
+
+    public function __toString(): string
+    {
+        array_walk($this->value, function (&$value, $key) {
+            if (is_string($key)) {
+                $value = $key . ': ' . $value;
+            }
+        });
+
+        return '{' . implode(', ', $this->value) . '}';
+    }
+}