1 files changed, 121 insertions, 0 deletions
diff --git a/src/MetaboxField.php b/src/MetaboxField.php
new file mode 100644
index 0000000..8112d9b
--- /dev/null
+++ b/src/MetaboxField.php
@@ -0,0 +1,121 @@
+<?php
+
+namespace PostTypes;
+
+class MetaboxField
+{
+    /**
+     * The field's key
+     */
+    public string $key;
+
+    /**
+     * The field's names
+     * 'label' is the title
+     * 'name' is the meta_key
+     * The $key is derived from the label
+     */
+    public array $names;
+
+    /**
+     * The field's type
+     * Can be one of the following
+     * @see https://www.advancedcustomfields.com/resources/register-fields-via-php/#field-type%20settings
+     */
+    public string $type;
+
+    /**
+     * The Metabox's $key
+     */
+    public string $parent;
+
+    /**
+     * The "ACF Field Settings"
+     * @see https://www.advancedcustomfields.com/resources/register-fields-via-php/#field-settings
+     * There are extra settings available based on the field's type
+     * @see https://www.advancedcustomfields.com/resources/register-fields-via-php/#field-type%20settings
+     */
+    public array $options = [];
+
+    /**
+     * MetaboxField constructor.
+     *
+     * @param string|array $names
+     * @param array        $options
+     */
+    public function __construct($names, array $options = [])
+    {
+        // only the name is passed
+        if (is_string($names)) {
+            $names = [
+                // create a human friendly name
+                'label' => ucwords(strtolower(str_replace(['-', '_'], ' ', $names))),
+                'name' => $names,
+            ];
+        }
+
+        // @see https://github.com/AdvancedCustomFields/acf/blob/5.9.3/includes/local-fields.php#L365
+        $this->key = 'field_' . $names['name'];
+        $this->names = $names;
+
+        $this->options($options);
+    }
+
+    /**
+     * @param string $type
+     *
+     * @return $this
+     */
+    public function type(string $type)
+    {
+        $this->type = $type;
+
+        return $this;
+    }
+
+    /**
+     * @param string $parent
+     *
+     * @return $this
+     */
+    public function parent(string $parent)
+    {
+        if (strpos($parent, 'group') !== 0) {
+            $parent = "group_$parent";
+        }
+
+        $this->parent = $parent;
+
+        return $this;
+    }
+
+    /**
+     * @param array $options
+     *
+     * @return $this
+     */
+    public function options(array $options)
+    {
+        $this->options = $options;
+
+        return $this;
+    }
+
+    /**
+     * Add the acf local field
+     */
+    public function add()
+    {
+        // merge with extra options
+        $field = array_merge_recursive([
+            'key' => $this->key,
+            'label' => $this->names['label'],
+            'name' => $this->names['name'],
+            'type' => $this->type,
+            'parent' => $this->parent,
+        ], $this->options);
+
+        // add the field
+        acf_add_local_field($field);
+    }
+}