<?php
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class MetaForge_Field_Registry {
	private static $instances = array();

	/**
	 * Register a field type instance.
	 *
	 * @param MetaForge_Field_Type $field_type
	 * @return bool
	 */
	public static function register_field_type( MetaForge_Field_Type $field_type ) {
		if ( empty( $field_type->name ) ) {
			return false;
		}
		self::$instances[ $field_type->name ] = $field_type;
		return true;
	}

	/**
	 * Get a registered field type instance.
	 *
	 * @param string $name
	 * @return MetaForge_Field_Type|null
	 */
	public static function get_field_type( $name ) {
		if ( empty( self::$instances ) ) {
			self::register_core_field_types();
		}
		return self::$instances[ $name ] ?? null;
	}

	/**
	 * Get all registered field type instances.
	 *
	 * @return MetaForge_Field_Type[]
	 */
	public static function get_all() {
		if ( empty( self::$instances ) ) {
			self::register_core_field_types();
		}
		return self::$instances;
	}

	/**
	 * Register default core field types (20 Free Fields) and trigger Pro fields hook.
	 */
	public static function register_core_field_types() {
		// 20 Core (Free) Field Types
		self::register_field_type( new MetaForge_TextField() );
		self::register_field_type( new MetaForge_TextareaField() );
		self::register_field_type( new MetaForge_NumberField() );
		self::register_field_type( new MetaForge_SelectField() );
		self::register_field_type( new MetaForge_CheckboxField() );
		self::register_field_type( new MetaForge_RadioField() );
		self::register_field_type( new MetaForge_TrueFalseField() );
		self::register_field_type( new MetaForge_RangeField() );
		self::register_field_type( new MetaForge_ButtonField() );
		self::register_field_type( new MetaForge_ImageField() );
		self::register_field_type( new MetaForge_FileField() );
		self::register_field_type( new MetaForge_WysiwygField() );
		self::register_field_type( new MetaForge_ColorPickerField() );
		self::register_field_type( new MetaForge_DateTimeField() );
		self::register_field_type( new MetaForge_LinkField() );
		self::register_field_type( new MetaForge_PostTypeSelectorField() );
		self::register_field_type( new MetaForge_TaxonomyField() );
		self::register_field_type( new MetaForge_UserField() );
		self::register_field_type( new MetaForge_GroupField() );
		self::register_field_type( new MetaForge_TabField() );

		// Trigger action for MetaForge Pro to register the 8 Pro Field Types
		do_action( 'metaforge_register_pro_field_types' );
	}
}