Rename namespace Function keyword to Functions to prevent errors

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

src/Functions/Base.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Functions;
+
+use Arendsen\FluxQueryBuilder\Formatters;
+
+abstract class Base {
+
+	/**
+	 * @throws FunctionNotImplementedException
+	 */
+	public function __toString()
+    {
+		throw new FunctionNotImplementedException('__toString', get_class($this));
+	}
+
+}

src/Functions/Filter.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Functions;
+
+use Arendsen\FluxQueryBuilder\Expression\KeyValue;
+
+class Filter extends Base {
+
+    /**
+     * @var KeyValue $keyValue
+     */
+    private $keyValue;
+
+    public function __construct(KeyValue $keyValue)
+    {
+        $this->keyValue = $keyValue;
+    }
+
+    public function __toString()
+    {
+        return '|> filter(fn: (r) => ' . $this->keyValue . ') ';
+    }
+
+}

src/Functions/From.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Functions;
+
+use Arendsen\FluxQueryBuilder\Formatters;
+
+class From extends Base {
+
+    /**
+     * @var array $settings
+     */
+    private $settings;
+
+    public function __construct(array $settings)
+    {
+        $this->settings = $settings;
+    }
+
+    public function __toString()
+    {
+        return 'from(' . Formatters::toFluxArrayString($this->settings) . ') ';
+    }
+
+}

src/Functions/FunctionNotImplementedException.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Functions;
+
+use Exception;
+
+class FunctionNotImplementedException extends Exception {}

src/Functions/Group.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Functions;
+
+use Arendsen\FluxQueryBuilder\Formatters;
+
+class Group extends Base {
+
+    /**
+     * @var array $columns
+     */
+    private $columns;
+
+    /**
+     * @var string $mode
+     */
+    private $mode;
+
+    public function __construct(array $columns, string $mode = 'by')
+    {
+        $this->columns = $columns;
+        $this->mode = $mode;
+    }
+
+    public function __toString()
+    {
+        $array = Formatters::toFluxArrayString([
+            'columns' => $this->columns,
+            'mode' => $this->mode,
+        ]);
+
+        return '|> group(' . $array . ') ';
+    }
+
+}

src/Functions/Limit.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Functions;
+
+class Limit extends Base {
+
+    /**
+     * @var int $limit
+     */
+    private $limit;
+
+    public function __construct(int $limit)
+    {
+        $this->limit = $limit;
+    }
+
+    public function __toString()
+    {
+        return '|> limit(n:' . (string)$this->limit . ') ';
+    }
+
+}

src/Functions/Map.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Functions;
+
+class Map extends Base {
+
+    /**
+     * @var array $query
+     */
+    private $query;
+
+    public function __construct(string $query)
+    {
+        $this->query = $query;
+    }
+
+    public function __toString()
+    {
+        return '|> map(fn: (r) => ({ ' . $this->query . ' })) ';
+    }
+
+}

src/Functions/Range.php

@@ -0,0 +1,24 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Functions;
+
+use Arendsen\FluxQueryBuilder\Formatters;
+
+class Range extends Base {
+
+    /**
+     * @var array $settings
+     */
+    private $settings;
+
+    public function __construct(array $settings)
+    {
+        $this->settings = $settings;
+    }
+
+    public function __toString()
+    {
+        return '|> range(' . Formatters::toFluxArrayString($this->settings) . ') ';
+    }
+
+}

src/Functions/Reduce.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Functions;
+
+use Arendsen\FluxQueryBuilder\Formatters;
+
+class Reduce extends Base {
+
+    /**
+     * @var array $settings
+     */
+    private $settings;
+
+    /**
+     * @var array $identity
+     */
+    private $identity;
+
+    public function __construct(array $settings, array $identity)
+    {
+        $this->settings = $settings;
+        $this->identity = $identity;
+    }
+
+    public function __toString()
+    {
+        return '|> reduce(fn: (r, accumulator) => ({' . implode(', ', $this->formatSettings($this->settings)) . '}), ' . 
+            'identity: {' . Formatters::toFluxArrayString($this->identity) . '}) ';
+    }
+
+    protected function formatSettings(array $settings)
+    {
+        array_walk($settings, function(&$value, $key) {
+			$value = $key . ': ' . $value;
+		});
+
+        return $settings;
+    }
+
+}

src/Functions/Sort.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Functions;
+
+use Arendsen\FluxQueryBuilder\Formatters;
+
+class Sort extends Base {
+
+    /**
+     * @var array $columns
+     */
+    private $columns;
+
+    /**
+     * @var bool $desc
+     */
+    private $desc;
+
+    public function __construct(array $columns, bool $desc = false)
+    {
+        $this->columns = $columns;
+        $this->desc = $desc;
+    }
+
+    public function __toString()
+    {
+        return '|> sort(columns: [' . Formatters::toFluxArrayString($this->columns) . 
+            '], desc: ' . Formatters::valueToString($this->desc) . ') ';
+    }
+
+}