<?php
/**
 * Settings class.
 *
 * @since 1.0.0
 *
 * @package Soliloquy
 * @author SoliloquyWP Team <[email protected]>
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class Soliloquy_Settings {

	/**
	 * Holds the class object.
	 *
	 * @since 1.0.0
	 *
	 * @var object
	 */
	public static $instance;

	/**
	 * Path to the file.
	 *
	 * @since 1.0.0
	 *
	 * @var string
	 */
	public $file = __FILE__;

	/**
	 * Holds the base class object.
	 *
	 * @since 1.0.0
	 *
	 * @var object
	 */
	public $base;

	/**
	 * Holds the submenu pagehook.
	 *
	 * @since 1.0.0
	 *
	 * @var string
	 */
	public $hook;

	/**
	 * Primary class constructor.
	 *
	 * @since 1.0.0
	 */
	public function __construct() {

		// Load the base class object.
		$this->base = Soliloquy::get_instance();

		// Add custom settings submenu.
		add_action( 'admin_menu', array( $this, 'admin_menu' ) );

		// Add callbacks for settings tabs.
		add_action( 'soliloquy_tab_settings_general', array( $this, 'settings_general_tab' ) );
		add_action( 'soliloquy_tab_settings_addons', array( $this, 'settings_addons_tab' ) );

		// Add the settings menu item to the Plugins table.
		add_filter( 'plugin_action_links_' . plugin_basename( plugin_dir_path( dirname( __DIR__ ) ) . 'soliloquy.php' ), array( $this, 'settings_link' ) );

		// Check if the soliloquy-publishing-default option is set. If not, default it to active
		$publishing_default = get_option( 'soliloquy-publishing-default' );
		if ( ! $publishing_default ) {
			update_option( 'soliloquy-publishing-default', 'active' );
		}

		// Check if the soliloquy_slide_view option is set. If not, default it to grid
		$defaul_view = get_option( 'soliloquy_slide_view' );
		if ( ! $defaul_view ) {

			update_option( 'soliloquy_slide_view', 'grid' );
		}

		// Possibly add a callback for upgrading.
		$upgrade_lite = get_option( 'soliloquy_upgrade' );
		if ( $upgrade_lite ) {
			return;
		}

		$v1_license = get_option( 'soliloquy_license_key' );
		if ( ! $v1_license ) {
			return;
		}

		add_action( 'soliloquy_tab_settings_upgrade', array( $this, 'settings_upgrade_tab' ) );
	}

	/**
	 * Register the Settings submenu item for Soliloquy.
	 *
	 * @since 1.0.0
	 */
	public function admin_menu() {

		// Register the submenu.
		$this->hook = add_submenu_page(
			'edit.php?post_type=soliloquy',
			esc_attr__( 'Soliloquy Settings', 'soliloquy' ),
			esc_attr__( 'Settings', 'soliloquy' ),
			apply_filters( 'soliloquy_menu_cap', 'manage_options' ),
			$this->base->plugin_slug . '-settings',
			array( $this, 'settings_page' )
		);

		// If successful, load admin assets only on that page and check for addons refresh.
		if ( $this->hook ) {
			add_action( 'load-' . $this->hook, array( $this, 'maybe_fix_migration' ) );
			add_action( 'load-' . $this->hook, array( $this, 'update_settings' ) );
			add_action( 'load-' . $this->hook, array( $this, 'settings_page_assets' ) );
		}
	}

	/**
	 * Maybe fixes the broken migration.
	 *
	 * @since 2.3.9.6
	 *
	 * @return null Return early if not fixing the broken migration
	 */
	public function maybe_fix_migration() {

		// Check if user pressed 'Fix' button and nonce is valid
		if ( ! isset( $_POST['soliloquy-serialization-submit'] ) ) {
			return;
		}
		if ( ! wp_verify_nonce( $_POST['soliloquy-serialization-nonce'], 'soliloquy-serialization-nonce' ) ) {
			return;
		}

		// If here, fix potentially broken migration
		// Get WPDB and serialization class
		global $wpdb, $fixedSliders;
		require plugin_dir_path( __FILE__ ) . 'serialization.php';
		$instance = Soliloquy_Serialization_Admin::get_instance();

		// Keep count of the number of sliders that get fixed
		$fixedSliders = 0;

		// Query to get all Soliloquy CPTs
		$sliders = new WP_Query(
			array(
				'post_type'      => 'soliloquy',
				'post_status'    => 'any',
				'posts_per_page' => -1,
			)
		);

		// Iterate through sliders
		if ( $sliders->posts ) {
			foreach ( $sliders->posts as $slider ) {

				// Attempt to get slider data
				$slider_data = get_post_meta( $slider->ID, '_sol_slider_data', true );
				if ( is_array( $slider_data ) ) {
					// Nothing to fix here, continue
					continue;
				}

				// Need to fix the broken serialized string for this slider
				// Get raw string from DB
				$query           = $wpdb->prepare(
					'    SELECT meta_value
					                         FROM ' . $wpdb->prefix . 'postmeta
					                         WHERE post_id = %d
					                         AND meta_key = %s
					                         LIMIT 1',
					$slider->ID,
					'_sol_slider_data'
				);
				$raw_slider_data = $wpdb->get_row( $query );

				// Do the fix, which returns an unserialized array
				$slider_data = $instance->fix_serialized_string( $raw_slider_data->meta_value );

				// Check we now have an array of unserialized data
				if ( is_array( $slider_data ) ) {
					update_post_meta( $slider->ID, '_sol_slider_data', $slider_data );
					++$fixedSliders;
				}
			}
		}

		// Output an admin notice so the user knows what happened
		add_action( 'admin_notices', array( $this, 'fixed_migration' ) );
	}

	/**
	 * Update settings, if defined
	 *
	 * @since 2.3.9.6
	 *
	 * @return null Invalid nonce / no need to save
	 */
	public function update_settings() {

		// Check form was submitted
		if ( ! isset( $_POST['soliloquy-settings-submit'] ) ) {
			return;
		}

		// Check nonce is valid
		if ( ! wp_verify_nonce( $_POST['soliloquy-settings-nonce'], 'soliloquy-settings-nonce' ) ) {
			return;
		}

		// Update options
		update_option( 'soliloquy-publishing-default', $_POST['soliloquy-publishing-default'] );
		update_option( 'soliloquy_slide_position', $_POST['soliloquy_slide_position'] );
		update_option( 'soliloquy_slide_view', $_POST['soliloquy_slide_view'] );
		update_option( 'soliloquy_lazy_loading', $_POST['soliloquy_lazy_loading'] );

		// Show confirmation notice
		add_action( 'admin_notices', array( $this, 'updated_settings' ) );
	}

	/**
	 * Outputs a WordPress style notification to tell the user how many sliders were
	 * fixed after running the migration fixer
	 *
	 * @since 2.3.9.6
	 */
	public function fixed_migration() {
		global $fixedSliders;

		?>
		<div class="updated">
			<p><strong><?php echo $fixedSliders . esc_html__( ' slider(s) fixed successfully.', 'soliloquy' ); ?></strong></p>
		</div>
		<?php
	}

	/**
	 * Outputs a WordPress style notification to tell the user their settings were saved
	 *
	 * @since 2.3.9.6
	 */
	public function updated_settings() {
		?>
		<div class="updated">
			<p><?php esc_html_e( 'Settings updated.', 'soliloquy' ); ?></p>
		</div>
		<?php
	}

	/**
	 * Loads assets for the settings page.
	 *
	 * @since 1.0.0
	 */
	public function settings_page_assets() {

		add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_admin_styles' ) );
		add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_admin_scripts' ) );
	}

	/**
	 * Register and enqueue settings page specific CSS.
	 *
	 * @since 1.0.0
	 */
	public function enqueue_admin_styles() {

		wp_register_style( $this->base->plugin_slug . '-settings-style', plugins_url( 'assets/css/settings.css', $this->base->file ), array(), $this->base->version );
		wp_enqueue_style( $this->base->plugin_slug . '-settings-style' );

		// Run a hook to load in custom styles.
		do_action( 'soliloquy_settings_styles' );
	}

	/**
	 * Register and enqueue settings page specific JS.
	 *
	 * @since 1.0.0
	 */
	public function enqueue_admin_scripts() {

		wp_enqueue_script( 'jquery-ui-tabs' );
		wp_register_script( $this->base->plugin_slug . '-chosen', plugins_url( 'assets/js/min/chosen.jquery-min.js', $this->base->file ), array(), $this->base->version, true );
		wp_enqueue_script( $this->base->plugin_slug . '-chosen' );

		wp_register_script( $this->base->plugin_slug . '-settings-script', plugins_url( 'assets/js/min/settings-min.js', $this->base->file ), array( 'jquery', 'jquery-ui-tabs' ), $this->base->version, true );
		wp_enqueue_script( $this->base->plugin_slug . '-settings-script' );
		wp_localize_script(
			$this->base->plugin_slug . '-settings-script',
			'soliloquy_settings',
			array(
				'ajax'          => admin_url( 'admin-ajax.php' ),
				'proceed'       => esc_attr__( 'Proceed', 'soliloquy' ),
				'redirect'      => esc_url(
					add_query_arg(
						array(
							'post_type'          => 'soliloquy',
							'soliloquy-upgraded' => true,
						),
						admin_url( 'edit.php' )
					)
				),
				'upgrade_nonce' => wp_create_nonce( 'soliloquy-upgrade' ),

			)
		);

		// Run a hook to load in custom scripts.
		do_action( 'soliloquy_settings_scripts' );
	}

	/**
	 * Callback to output the Soliloquy settings page.
	 *
	 * @since 1.0.0
	 */
	public function settings_page() {

		?>
		<h1 id="soliloquy-tabs-nav" class="soliloquy-clear">

		<?php
		$i = 0;
		foreach ( (array) $this->get_soliloquy_settings_tab_nav() as $id => $title ) :
			$class = 0 === $i ? 'soliloquy-active nav-tab-active' : '';
			?>

		<a class="nav-tab <?php echo $class; ?>" href="#soliloquy-tab-<?php echo $id; ?>" title="<?php echo $title; ?>"><?php echo $title; ?></a>

				<?php
				++$i;
endforeach;
		?>

		</h1>

		<div id="soliloquy-settings" class="wrap">

			<h1 class="soliloquy-hideme"></h1>

			<div class="soliloquy soliloquy-clear">

				<div id="soliloquy-tabs" class="soliloquy-clear">

					<?php
					$i = 0;
					foreach ( (array) $this->get_soliloquy_settings_tab_nav() as $id => $title ) :
						$class = 0 === $i ? 'soliloquy-active' : '';
						?>

					<div id="soliloquy-tab-<?php echo $id; ?>" class="soliloquy-tab soliloquy-clear <?php echo $class; ?>">

											<?php do_action( 'soliloquy_tab_settings_' . $id ); ?>

					</div>

										<?php
										++$i;
endforeach;
					?>

				</div>

			</div>

		</div>

		<?php
	}

	/**
	 * Callback for getting all of the settings tabs for Soliloquy.
	 *
	 * @since 1.0.0
	 *
	 * @return array Array of tab information.
	 */
	public function get_soliloquy_settings_tab_nav() {

		$tabs = array(
			'general' => esc_attr__( 'General', 'soliloquy' ), // This tab is required. DO NOT REMOVE VIA FILTERING.
		);
		$tabs = apply_filters( 'soliloquy_settings_tab_nav', $tabs );

		// Possibly add a tab for upgrading.
		$upgrade_lite = get_option( 'soliloquy_upgrade' );
		if ( $upgrade_lite ) {
			return $tabs;
		}

		$v1_license = get_option( 'soliloquy_license_key' );
		if ( ! $v1_license ) {
			return $tabs;
		}

		$tabs['upgrade'] = esc_attr__( 'Upgrade', 'soliloquy' );

		return $tabs;
	}

	/**
	 * Callback for displaying the UI for general settings tab.
	 *
	 * @since 1.0.0
	 */
	public function settings_general_tab() {

		// Get settings
		$publishingDefault = get_option( 'soliloquy-publishing-default' );
		$slide_position    = get_option( 'soliloquy_slide_position' );
		$slide_view        = get_option( 'soliloquy_slide_view' );

		if ( empty( $slide_position ) ) {
			$slide_position = 'after';
		}
		?>
		<div id="soliloquy-settings-general">

			<table class="form-table soliloquy-settings-table" cellpadding="40">

				<tbody>

					<tr id="soliloquy-settings-key-box">

						<th scope="row">

							<label for="soliloquy-settings-key"><?php esc_html_e( 'Soliloquy License Key', 'soliloquy' ); ?></label>

						</th>

						<td>

							<form id="soliloquy-settings-verify-key" method="post">

								<input class="soliloquy-input" type="password" name="soliloquy-license-key" id="soliloquy-settings-key" value="<?php echo ( $this->base->get_license_key() ? $this->base->get_license_key() : '' ); ?>" />

								<?php wp_nonce_field( 'soliloquy-key-nonce', 'soliloquy-key-nonce' ); ?>

								<?php submit_button( esc_attr__( 'Verify Key', 'soliloquy' ), 'button-soliloquy', 'soliloquy-verify-submit', false ); ?>

								<?php submit_button( esc_attr__( 'Deactivate Key', 'soliloquy' ), 'button-soliloquy-secondary', 'soliloquy-deactivate-submit', false ); ?>

								<p class="description"><?php esc_html_e( 'License key to enable automatic updates for Soliloquy.', 'soliloquy' ); ?></p>

							</form>

						</td>

					</tr>

					<?php $type = $this->base->get_license_key_type(); if ( ! empty( $type ) ) : ?>

					<tr id="soliloquy-settings-key-type-box">

						<th scope="row">

							<label for="soliloquy-settings-key-type"><?php esc_html_e( 'Soliloquy License Key Type', 'soliloquy' ); ?></label>

						</th>

						<td>

							<form id="soliloquy-settings-key-type" method="post">

								<span class="soliloquy-license-type"><?php printf( __( 'Your license key type for this site is <strong>%s.</strong>', 'soliloquy' ), $this->base->get_license_key_type() ); ?>

								<input class="soliloquy-input" type="hidden" name="soliloquy-license-key" value="<?php echo $this->base->get_license_key(); ?>" />

								<?php wp_nonce_field( 'soliloquy-key-nonce', 'soliloquy-key-nonce' ); ?>

								<?php submit_button( esc_attr__( 'Refresh Key', 'soliloquy' ), 'button-soliloquy', 'soliloquy-refresh-submit', false ); ?>

								<p class="description"><?php esc_html_e( 'Your license key type (handles updates and Addons). Click refresh if your license has been upgraded or the type is incorrect.', 'soliloquy' ); ?></p>

							</form>

						</td>

					</tr>

					<?php endif; ?>

					<tr id="soliloquy-serialization-box">

						<th scope="row">

							<label for="soliloquy-serialization"><?php esc_html_e( 'Fix Broken Migration', 'soliloquy' ); ?></label>

						</th>

						<td>

							<form id="soliloquy-serialization" method="post">

								<?php wp_nonce_field( 'soliloquy-serialization-nonce', 'soliloquy-serialization-nonce' ); ?>

								<?php submit_button( esc_attr__( 'Fix', 'soliloquy' ), 'button-soliloquy', 'soliloquy-serialization-submit', false ); ?>

								<p class="description"><?php printf( esc_html__( 'If you have changed the URL of your WordPress web site, and manually executed a search/replace query on URLs in your WordPress database, your sliders will probably no longer show any slides.  %s, click the button above to fix this. We recommend using a migration plugin or script next time :)', 'soliloquy' ), '<strong>' . __( 'If this is the case' ) . '</strong>' ); ?></p>

							</form>

						</td>

					</tr>

				</tbody>

			</table>

			<!-- General Settings -->
			<form id="soliloquy-settings" method="post">

				<table class="form-table soliloquy-settings-table">

					<tbody>

						<!-- Publishing Default -->
						<tr id="soliloquy-publishing-default">
							<th scope="row">
								<label for="soliloquy-publishing-default"><?php esc_html_e( 'New Slide Status', 'soliloquy' ); ?></label>
							</th>
							<td>
								<div class="soliloquy-select">
									<select name="soliloquy-publishing-default" size="1" class="soliloquy-chosen" data-soliloquy-chosen-options='{ "disable_search":"true" }'>
										<option value="active"<?php selected( $publishingDefault, 'active' ); ?>><?php esc_html_e( 'Published', 'soliloquy' ); ?></option>
										<option value="pending"<?php selected( $publishingDefault, 'pending' ); ?>><?php esc_html_e( 'Draft', 'soliloquy' ); ?></option>
									</select>
								</div>
								<p class="description"><?php esc_html_e( 'Choose the default status of any new slides that are added/uploaded to your Soliloquy sliders. You can always change slides on an individual basis by editing them.', 'soliloquy' ); ?></p>
							</td>
						</tr>

						<!-- Media Position -->
						<tr id="soliloquy-slide-view-box">
							<th scope="row">
								<label for="soliloquy-slide-position"><?php esc_html_e( 'New Slide Position', 'soliloquy' ); ?></label>
							</th>
							<td>
								<div class="soliloquy-select">
								<select id="soliloquy-view" name="soliloquy_slide_position" class="soliloquy-chosen" data-soliloquy-chosen-options='{ "disable_search":"true" }'>
									<?php foreach ( (array) Soliloquy_Common_Admin::get_instance()->get_slide_positions() as $i => $data ) : ?>
										<option value="<?php echo $data['value']; ?>"<?php selected( $data['value'], $slide_position ); ?>><?php echo $data['name']; ?></option>
									<?php endforeach; ?>
								</select>
								</div>
								<p class="description"><?php esc_html_e( 'When adding slides to a Slider, choose whether to add slides before or after any existing slides.', 'soliloquy' ); ?></p>
							</td>
						</tr>
						<!-- Media Position -->
						<tr id="soliloquy-slide-view-box">
							<th scope="row">
								<label for="soliloquy-slide-view"><?php esc_html_e( 'Default View Position', 'soliloquy' ); ?></label>
							</th>
							<td>
								<div class="soliloquy-select">
								<select id="soliloquy-slide-view" name="soliloquy_slide_view" class="soliloquy-chosen" data-soliloquy-chosen-options='{ "disable_search":"true" }'>
										<option value="grid"<?php selected( 'grid', $slide_view ); ?>><?php esc_html_e( 'Grid', 'soliloquy' ); ?></option>
										<option value="list"<?php selected( 'list', $slide_view ); ?>><?php esc_html_e( 'List', 'soliloquy' ); ?></option>

								</select>
								</div>
								<p class="description"><?php esc_html_e( 'Default view When adding slides to a Slider.', 'soliloquy' ); ?></p>
							</td>
						</tr>
						<!-- Image Lazy Loading -->
						<tr id="soliloquy-lazy-loading-box">
							<th scope="row">
								<label for="soliloquy-lazy-loading"><?php esc_html_e( 'Image Lazy Loading', 'soliloquy' ); ?></label>
							</th>
							<td>
								<div class="soliloquy-select">
								<select id="soliloquy-lazy-loading" name="soliloquy_lazy_loading" class="soliloquy-chosen" data-soliloquy-chosen-options='{ "disable_search":"true" }'>
										<option value="auto"<?php selected( 'auto', get_option( 'soliloquy_lazy_loading', 'auto' ) ); ?>><?php esc_html_e( 'Auto', 'soliloquy' ); ?></option>
										<option value="enable"<?php selected( 'enable', get_option( 'soliloquy_lazy_loading', 'auto' ) ); ?>><?php esc_html_e( 'Enable', 'soliloquy' ); ?></option>
										<option value="disable"<?php selected( 'disable', get_option( 'soliloquy_lazy_loading', 'auto' ) ); ?>><?php esc_html_e( 'Disable', 'soliloquy' ); ?></option>
								</select>
								</div>
								<p class="description"><?php esc_html_e( 'Control how images are lazy loaded in your sliders. Auto will use WordPress lazy loading settings.', 'soliloquy' ); ?></p>
							</td>
						</tr>
						<!-- Submit -->
						<tr class="soliloquy-no-border">
							<th scope="row">
								&nbsp;
							</th>
							<td>
								<?php
								wp_nonce_field( 'soliloquy-settings-nonce', 'soliloquy-settings-nonce' );
								submit_button( esc_attr__( 'Save Settings', 'soliloquy' ), 'button-soliloquy', 'soliloquy-settings-submit', false );
								?>
							</td>
						</tr>

						<?php do_action( 'soliloquy_settings_general_box' ); ?>
					</tbody>
				</table>
			</form>
		</div>
		<?php
	}

	/**
	 * Callback for displaying the UI for upgrade settings tab.
	 *
	 * @since 1.0.0
	 */
	public function settings_upgrade_tab() {

		?>
		<div id="soliloquy-settings-upgrade">
			<p><strong><?php esc_html_e( 'You have upgraded to v2 of Soliloquy. You need to upgrade your sliders using our custom upgrading tool. Click on the button below to start the process.', 'soliloquy' ); ?></strong></p>
			<p><a class="button button-primary soliloquy-start-upgrade" href="#" title="<?php esc_attr_e( 'Click Here to Start the Upgrade Process', 'soliloquy' ); ?>"><?php esc_html_e( 'Click Here to Start the Upgrade Process', 'soliloquy' ); ?></a> <span class="spinner soliloquy-spinner"></span></p>
		</div>
		<?php
	}

	/**
	 * Retrieve the plugin basename from the plugin slug.
	 *
	 * @since 1.0.0
	 *
	 * @param string $slug The plugin slug.
	 * @return string      The plugin basename if found, else the plugin slug.
	 */
	public function get_plugin_basename_from_slug( $slug ) {

		$keys = array_keys( get_plugins() );

		foreach ( $keys as $key ) {
			if ( preg_match( '|^' . $slug . '|', $key ) ) {
				return $key;
			}
		}

		return $slug;
	}

	/**
	 * Add Settings page to plugin action links in the Plugins table.
	 *
	 * @since 1.0.0
	 *
	 * @param array $links  Default plugin action links.
	 * @return array $links Amended plugin action links.
	 */
	public function settings_link( $links ) {

		$settings_link = sprintf(
			'<a href="%s">%s</a>',
			esc_url(
				add_query_arg(
					array(
						'post_type' => 'soliloquy',
						'page'      => 'soliloquy-settings',
					),
					admin_url( 'edit.php' )
				)
			),
			esc_attr__( 'Settings', 'soliloquy' )
		);
		array_unshift( $links, $settings_link );

		return $links;
	}

	/**
	 * Returns the singleton instance of the class.
	 *
	 * @since 1.0.0
	 *
	 * @return object The Soliloquy_Settings object.
	 */
	public static function get_instance() {

		if ( ! isset( self::$instance ) && ! ( self::$instance instanceof Soliloquy_Settings ) ) {
			self::$instance = new Soliloquy_Settings();
		}

		return self::$instance;
	}
}

// Load the settings class.
$soliloquy_settings = Soliloquy_Settings::get_instance();