<?php

namespace Brandy\Database;

use Brandy\Customizer\Layouts\FooterRowSettings;
use Brandy\Customizer\Layouts\HeaderSettings;
use Brandy\Traits\SingletonTrait;
use Brandy\Utils\Helpers;

class Migration {
	use SingletonTrait;

	protected function __construct() {
		add_action( 'after_switch_theme', array( $this, 'migrate_data' ) );
		add_filter( 'migrated_header_template', array( $this, 'migrate_header_template' ) );
		add_filter( 'migrated_footer_template', array( $this, 'migrate_footer_template' ) );
	}

	public function migrate_data() {

		$header_settings = get_theme_mod( 'header_settings' );
		if ( ! empty( $header_settings['templates'] ) ) {
			foreach ( array_keys( $header_settings['templates'] ) as $template_index ) {
				$header_settings['templates'][ $template_index ] = apply_filters( 'migrated_header_template', $header_settings['templates'][ $template_index ] );
			}
			set_theme_mod( 'header_settings', $header_settings );
		}

		/**
		 * Footer settings
		 */

		 $footer_settings = get_theme_mod( 'footer_settings' );
		if ( ! empty( $footer_settings['templates'] ) ) {
			foreach ( array_keys( $footer_settings['templates'] ) as $template_index ) {
				$footer_settings['templates'][ $template_index ] = apply_filters( 'migrated_footer_template', $footer_settings['templates'][ $template_index ] );
			}
			set_theme_mod( 'footer_settings', $footer_settings );
		}
	}

	public function migrate_header_template( $settings ) {

		if ( empty( $settings ) ) {
			return $settings;
		}

		$elements = apply_filters( 'brandy_elements', array() );

		/**
		 * Header settings
		 */
		$header_elements = array_filter(
			$elements,
			function( $element ) {
				return in_array( 'header', $element['builders'], true );
			}
		);

		$settings['elements'] = ! isset( $settings['elements'] ) ? array() : $settings['elements'];

		$settings['elements'] = Helpers::recursive_wp_parse_args( $settings['elements'], $header_elements );
		$settings['settings'] = Helpers::recursive_wp_parse_args( $settings['settings'], HeaderSettings::get_instance()->get_settings() );

		return $settings;
	}

	public function migrate_footer_template( $settings ) {
		if ( empty( $settings ) ) {
			return $settings;
		}

		$elements = apply_filters( 'brandy_elements', array() );

		/**
		 * Footer settings
		 */
		$footer_elements = array_filter(
			$elements,
			function( $element ) {
				return in_array( 'footer', $element['builders'], true );
			}
		);

		$settings['elements'] = ! isset( $settings['elements'] ) ? array() : $settings['elements'];

		$settings['elements'] = Helpers::recursive_wp_parse_args( $settings['elements'], $footer_elements );

		/** Add footer column alignment */
		$footer_row_settings = FooterRowSettings::get_instance()->get_settings();
		foreach ( array( 'top', 'middle', 'bottom' ) as $row_key ) {
			$settings['row_configurations'][ $row_key ]['column_items_direction']      = $footer_row_settings['column_items_direction'];
			$settings['row_configurations'][ $row_key ]['column_horizontal_alignment'] = $footer_row_settings['column_horizontal_alignment'];
			$settings['row_configurations'][ $row_key ]['column_vertical_alignment']   = $footer_row_settings['column_vertical_alignment'];
			$settings['row_configurations'][ $row_key ]['column_flex_wrap']            = $footer_row_settings['column_flex_wrap'];
		}

		return $settings;
	}

}