<?php

namespace TotalTheme\Customizer;

use TotalTheme\Customizer;

\defined( 'ABSPATH' ) || exit;

/**
 * Customizer Manager.
 */
class Manager extends Customizer {

	/**
	 * Start things up.
	 */
	public function __construct() {
		$this->init_hooks();
	}

	/**
	 * Hook into actions and filters.
	 */
	public function init_hooks() {
		add_action( 'admin_menu', [ $this, 'add_admin_submenu_page' ], 40 );
		add_action( 'admin_init', [ $this, 'register_settings' ] );
	}

	/**
	 * Add sub menu page for the custom CSS input.
	 */
	public function add_admin_submenu_page() {
		$hook_suffix = add_submenu_page(
			WPEX_THEME_PANEL_SLUG,
			esc_html__( 'Customizer Manager', 'total' ),
			esc_html__( 'Customizer Manager', 'total' ),
			'administrator', // allow admin to decide what "edit_theme_options" roles can edit.
			WPEX_THEME_PANEL_SLUG . '-customizer',
			array( $this, 'render_admin_page' )
		);

		\add_action( "load-{$hook_suffix}", [ $this, 'admin_help_tab' ] );
	}

	/**
	 * Add admin help tab.
	 */
	public function admin_help_tab() {
		$screen = \get_current_screen();

		if ( ! $screen ) {
			return;
		}

		$screen->add_help_tab(
			[
				'id'      => 'totaltheme_customizer_manager',
				'title'   => \esc_html__( 'Overview', 'total' ),
				'content' => '<p>' . esc_html__( 'Disable sections in the Customizer that you no longer need. It will NOT alter any options already set in the Customizer or disable sections visible on the front-end of your site.', 'total' ) . '</p>'
			]
		);
	}

	/**
	 * Function that will register admin page settings.
	 */
	public function register_settings() {
		register_setting(
			'wpex_customizer_editor',
			'wpex_disabled_customizer_panels',
			array(
				'type' => 'array',
				'sanitize_callback' => array( $this, 'sanitize_callback' ),
			)
		);
	}

	/**
	 * Sanitize option.
	 */
	public function sanitize_callback( $option ) {
		if ( is_array( $option ) ) {
			$option = array_map( 'sanitize_text_field', $option );
		} else {
			$option = [];
		}
		return $option;
	}

	/**
	 * Save option.
	 */
	protected function save_option( $option ) {
		$excluded_panels = [];
		$panels = $this->panels();
		foreach ( $panels as $id => $val ) {
			if ( ! isset( $option[$id] ) ) {
				$excluded_panels[] = $id;
			}
		}
		if ( $excluded_panels ) {
			update_option( 'wpex_disabled_customizer_panels', $excluded_panels, false );
		} else {
			delete_option( 'wpex_disabled_customizer_panels' );
		}
	}

	/**
	 * Settings page output.
	 *
	 */
	public function render_admin_page() {
		if ( ! current_user_can( 'administrator' ) ) {
			return;
		}

		wp_enqueue_style( 'wpex-admin-pages' );
		wp_enqueue_script( 'wpex-admin-pages' );

		if ( array_key_exists( 'wpex_customizer_manager_nonce_field', $_POST ) && wp_verify_nonce( $_POST['wpex_customizer_manager_nonce_field'], 'wpex_customizer_manager_nonce_action' ) ) {
			$option = $_POST['wpex_disabled_customizer_panels'] ?? []; // allow disabling of all fields.
			$this->save_option( $option );
		}

		?>

		<div id="wpex-customizer-manager-admin-page" class="wrap">

			<h2 class="nav-tab-wrapper">
				<a href="#" class="nav-tab nav-tab-active"><?php esc_html_e( 'Panels', 'total' ); ?></a>
				<a href="<?php echo esc_url( admin_url( 'customize.php' ) ); ?>" class="nav-tab"><?php esc_html_e( 'Customizer', 'total' ); ?> <span class="dashicons dashicons-external"></span></a>
			</h2>

			<div class="wpex-check-uncheck">
				<a href="#" class="wpex-customizer-check-all"><?php esc_html_e( 'Check all', 'total' ); ?></a> | <a href="#" class="wpex-customizer-uncheck-all"><?php esc_html_e( 'Uncheck all', 'total' ); ?></a>
			</div>

			<form method="post">
				<table class="form-table wpex-customizer-editor-table">
					<?php
					// Get panels.
					$panels = $this->panels();

					// Get disabled panels.
					$disabled_panels = get_option( 'wpex_disabled_customizer_panels' ) ?: array();

					// Loop through panels and add checkbox
					foreach ( $panels as $id => $val ) {
						$title     = $val['title'] ?? $val;
						$condition = $val['condition'] ?? true;

						// Check if option should be hidden
						$is_hidden = isset( $val['condition'] ) && ! call_user_func( $val['condition'] ) ? true : false;

						// Check if a given section is enabled
						$is_enabled = wpex_has_customizer_panel( $id ) ? 'on' : '';
						?>

						<tr valign="top"<?php if ( $is_hidden ) echo ' style="display:none;"'; ?>>
							<th scope="row"><label for="wpex_disabled_customizer_panels[<?php echo esc_attr( $id ); ?>]"><?php echo esc_html( $title ); ?></label></th>
								<td>
								<?php
								// Condition isn't met so add setting as a hidden item
								if ( $is_hidden ) { ?>
									<input type="hidden" id="wpex_disabled_customizer_panels[<?php echo esc_attr( $id ); ?>]" name="wpex_disabled_customizer_panels[<?php echo esc_attr( $id ); ?>]"<?php checked( $is_enabled, 'on' ); ?>>
								<?php }
								// Display setting
								else { ?>
									<input class="wpex-customizer-editor-checkbox" type="checkbox" id="wpex_disabled_customizer_panels[<?php echo esc_attr( $id ); ?>]" name="wpex_disabled_customizer_panels[<?php echo esc_attr( $id ); ?>]"<?php checked( $is_enabled, 'on' ); ?>>
								<?php } ?>
							</td>
						</tr>
					<?php } ?>
				</table>
				<?php wp_nonce_field( 'wpex_customizer_manager_nonce_action', 'wpex_customizer_manager_nonce_field' ); ?>
				<?php submit_button(); ?>
			</form>
		</div>
	<?php }

}