<?php

/**
 * The class responsible for admin-specific functionality of the plugin.
 *
 * @package    Amo_Team_Showcase
 * @subpackage Amo_Team_Showcase/admin
 * @author     AMO Themo (Oleg Goltsev)
 * @since      1.0.0
 */
class Amo_Team_Showcase_Admin {

	/**
	 * The renderer (reference to object saved in Amo_Team_Showcase class instance)
	 * that's responsible for rendering partials (view templates) of the plugin
	 *
	 * @since    1.0.0
	 * @access   private
	 * @var object Amo_Team_Showcase_Views_Renderer $renderer
	 */
	public $renderer;

	/**
	 * Reference to the instance of Amo_Team_Showcase, where all general (admin and public) functions/properties reside.
	 *
	 * @since    1.0.0
	 * @access   private
	 * @var object Amo_Team_Showcase $gpo
	 */
	private $gpo;


	private $main_subviews_folder = 'sub-views';

	/**
	 * Options page or Team Member Screen
	 *
	 * @since    1.0.0
	 * @access   private
	 * @var object Amo_Team_Showcase $options_or_member_screen
	 */
	private $options_or_member_screen;

	/**
	 * Initialize the class and set its properties.
	 *
	 * @since  1.0.0
	 * @param  object $general_plugin_obg - Reference to Amo_Team_Showcase object, where all general functions/properties reside.
	 */
	public function __construct( $general_plugin_obg ) {
		// Translate plugin's meta
		__( 'AMO Team Showcase', 'amo-team' );
		__( 'AMO Themo (Oleg Goltsev)', 'amo-team' );
		__( 'Easily showcase members of your team/company and their info in sleek, responsive and professional way.', 'amo-team' );


		$this->gpo = $general_plugin_obg;

	} // __construct | FNC

	/*  1. ENQUEUE ADMIN | styles and scripts
	-------------------------------------------------------------------*/
	/**
	 * Register the stylesheets and JavaScript files for the admin area.
	 *
	 * @since    1.0.0
	 */
	public function enqueue_styles_and_scripts( $hook_suffix ) {
		require 'amo-team-showcase-admin-enqueue.php';
	} // enqueue_styles_and_scripts | FNC


	/*-------------------------------------------------------------------
	▐	2. ADMIN NOTICES / WARNINGS
	--------------------------------------------------------------------*/
	/**
	 * Shows "regenerate thumbnails" admin notice, if the notice is not disabled
	 *
	 * @since    1.0.0
	 */
	public function activation_notice_regen_thumbnails() {
		$amo_team_system = get_option( $this->gpo->get_plugin_name() . '-system' );
		if ( ! isset( $amo_team_system['thumb-notice'] ) || ! $amo_team_system['thumb-notice'] ) {

			$this->gpo->render_dependencies( $this, false);
			$this->renderer->set_variables( array(
				'nonce' => wp_create_nonce( 'hide-regen-thumbnails-notice' ),
			) );
			echo $this->renderer->render( 'notice-thumbnails', 'specific' );
		} // IF
	} // FNC


	/**
	 * AJAX function to hide "regenerate thumbnails" admin notice,
	 * which becomes visible on plugin's activation
	 *
	 * @since    1.0.0
	 */
	public function hide_regen_thumbnails_notice() {
		check_ajax_referer( 'hide-regen-thumbnails-notice', 'security' );

		$amo_team_system = get_option( $this->gpo->get_plugin_name() . '-system' );
		$amo_team_system['thumb-notice'] = true;

		update_option( $this->gpo->get_plugin_name() . '-system', $amo_team_system );
		wp_die();
	} // FNC


	/**
	 * Displays a warning if WP version is less than required one.
	 *
	 * @since    1.0.0
	 */
	function wp_version_warning() {
		$current_screen = get_current_screen();

		if ( $this->gpo->options_or_member_screen ) {
			if ( version_compare( $GLOBALS['wp_version'], '4.6', '<' ) ) {
				$this->gpo->render_dependencies( $this, false);
				$this->renderer->set_variables( array(
					'notice-message' => sprintf( '<b>%s:</b> %s', __( 'Warning', 'amo-team' ), sprintf( __( 'Amo Team Showcase plugin requires at least WordPress version 4.6. You are running version %s. Please <a href="%s">update WordPress</a>.', 'amo-team' ), $GLOBALS['wp_version'], admin_url( 'update-core.php' ) ) ),
					'notice-type' => 'warning',
				) );
				echo $this->renderer->render( 'notice-general', 'specific' );
			} // IF | WP version
		} // IF | options_or_member_screen
	} // FNC


	/*  3. MAIN SANITIZATION FUNCTION | Before to save in DB
	-------------------------------------------------------------------*/
	/**
	 * Sanitization of admin form values (plugin options and member metaboxes), on form submission.
	 *
	 * @since    1.0.0
	 */
	public function sanitize_form_input_values( $values_array, $metabox = false ) {
		$sanitized_vals = array();
		$metabox_key = '';
		$metabox_san_values = array();
		$sanitize = true;

		/*  Sanitize the values
		--------------------------------------------------------------------*/
		foreach ( $values_array as $key => $val ) {

			// if we have multidimensional array from metabox field
			if (  ! $metabox && is_array($val) ) {
				foreach ( $val as $key2 => $metabox_vals ) {
					$metabox_san_values[] = $this->sanitize_form_input_values( $metabox_vals, true );
				} // FOREACH
				$metabox_key = $key;
			} // IF array from metabox field

			// if no sanitization
			if ( false !== strpos( $key, 'nosan_' ) ) {
				$sanitize = false;
				$key = ( substr( $key, strlen( 'nosan_' ) ) );
			} // if no sanitization

			if ( false !== strpos( $key, 'number__' ) ) { // number input type
				// delete 'number__' from the input name ($key) and sanitize its value
				$sanitized_vals[ ( substr( $key, strlen( 'number__' ) ) ) ] = $sanitize ? absint( $val ) : $val;

			} elseif ( false !== strpos( $key, 'text__' ) ) { // text input type
				// delete 'text__' from the input name ($key) and sanitize its value
				$sanitized_vals[ ( substr( $key, strlen( 'text__' ) ) ) ] = $sanitize ? sanitize_text_field( $val ) : trim( $val );

			} elseif ( false !== strpos( $key, 'switcher__' ) ) { // text input type
				// delete 'switcher__' from the input name ($key) and sanitize its value
				$sanitized_vals[ ( substr( $key, strlen( 'switcher__' ) ) ) ] = $sanitize ? absint( $val ) : $val;

			} elseif ( false !== strpos( $key, 'select__' ) ) { // text input type
				// delete 'select__' from the input name ($key) and sanitize its value
				$sanitized_vals[ ( substr( $key, strlen( 'select__' ) ) ) ] = $sanitize ? sanitize_text_field( $val ) : $val;
			} // IF

		} // FOREACH

		// IF it was sanitization for metabox
		if ( $metabox ) {
			$metabox_san_values = $sanitized_vals;
			$sanitized_vals = array();
		} else {
			if ( $metabox_key ) {
				$sanitized_vals[$metabox_key] = $metabox_san_values;
			}
		} // IF

		return $metabox ? $metabox_san_values : $sanitized_vals;

	} // sanitize_form_input_values | FNC


	/*-------------------------------------------------------------------
	▐	4. OPTIONS PAGE | And functionality related to it
	--------------------------------------------------------------------*/
	/**
	 * Adds plugin's options menu item to the admin panel.
	 *
	 * @since    1.0.0
	 */
	public function add_plugin_options_menu() {

		// Adds plugin's options menu item to WP panel
		add_submenu_page(
			'edit.php?post_type=amo-team',
			__( 'AMO Team Options', 'amo-team' ),
			__('Options', 'amo-team' ),
			'manage_options',
			'amo-team-options',
			array( $this, 'display_options_page' )
		);
	} // FNC


	/**
	 * Displays plugin options page.
	 *
	 * @since    1.0.0
	 */
	public function display_options_page() {
		$settings_notice = '';

		$this->gpo->render_dependencies( $this, false);

		// Settings update/reset notice
		if ( isset( $_GET['settings-updated'] ) && 1 == $_GET['settings-updated'] ) {
			$settings_notice = 'settings-updated';
		} else if ( isset( $_GET['settings-reset'] ) && 1 == $_GET['settings-reset'] ) {
			$settings_notice = 'settings-reset';
		}

		$this->renderer->set_variables( array(

			'settings_notice' => ( $this->renderer->render( 'options-page/' . $settings_notice, $this->main_subviews_folder ) ),

			'panel_buttons' => $this->renderer->render( 'options-page/panel__buttons', $this->main_subviews_folder ),

			'nav-tabs' => $this->renderer->render( 'options-page/nav-tabs', $this->main_subviews_folder, array(
				'name'  => 'args', // wil be $args in the template
				'value' => array(
					'general-t' => array( _x( 'General', 'Navigation tab title.', 'amo-team' ), 'icon-settings' ), // the second value is an icon name
					'thumbs-t'  => array( _x( 'Thumbnails', 'Navigation tab title.', 'amo-team' ), 'icon-layout-grid2' ),
					'panel-t'   => array( _x( 'Panel', 'Navigation tab title.', 'amo-team' ), 'icon-layout-width-default-alt' ),
					'shortcodes-t'   => array( _x( 'Shortcodes', 'Navigation tab title.', 'amo-team' ), 'icon-shortcode' ),
					'misc-t'    => array( _x( 'Misc', 'Abridgement from Miscellaneous. Navigation tab title.', 'amo-team' ), 'icon-panel' ),

				)
			) ),

			'tab-panes' => $this->renderer->assemble_sub_views_for_page( 'options-page', $this->main_subviews_folder, array(
				'name'  => 'opts', // wil be $opts in the template
				'value' => get_option( 'amo-team-showcase-options' )
			) ),

			'form_nonce' => wp_nonce_field( 'amo_team_options_save', 'amo_team_options_nonce', true, false ),

			'plugin_version' => $this->gpo->get_version(),
		) );

		echo $this->renderer->render( 'options-page' );
	} // create_options_page | FNC


	/**
	 * Saves and resets form values/settings on plugin's options page.
	 *
	 * @since    1.0.0
	 */
	public function save_plugin_options() {
		if ( ! current_user_can( 'manage_options' ) ) {
			wp_die( __( 'You are not allowed to be on this page.', 'amo-team' ) );
		}
		// check options form nonce
		check_admin_referer( 'amo_team_options_save', 'amo_team_options_nonce' );

		$settings_status = '';

		// If option's "Reset All Settings" button is pressed
		if ( 'reset' == $_POST['submit-type'] ) {

			// Initialize the renderer with admin folder parameter
			$renderer = amo_team_showcase_renderer( 'admin' );

			// load predefined, default values/data from files
			update_option( $this->gpo->get_plugin_name() . '-css-styles', $renderer->fetch_arguments( 'complied-css', 'activation' ) );
			update_option( $this->gpo->get_plugin_name() . '-options', $renderer->fetch_arguments( 'options-data', 'activation' ) );

			$settings_status = '&settings-reset=1';

		// If option's "Save Changes" button is pressed
		} else if ( 'save' == $_POST['submit-type'] ) {

			// get only options form values, slice off the first 3 array items (WP's form service information)
			$options_vals = array_slice($_POST, 4);

			// Sanitize form values
			$sanitized_vals = $this->sanitize_form_input_values( $options_vals );

			// Save/Update plugin options
			update_option( $this->gpo->get_plugin_name() . '-options', $sanitized_vals );

			// Save/Update plugin css styles (created from options settings)
			update_option( $this->gpo->get_plugin_name() . '-css-styles', $this->assemble_css_styles_from_options( $sanitized_vals ) );

			$settings_status = '&settings-updated=1';
		} // IF | "Reset All Settings" / "Save Changes" button

		// redirect back to plugin options page
		wp_redirect( admin_url('edit.php?post_type=amo-team&page=amo-team-options' . $settings_status ) );
		exit;

	} // save_plugin_options | FNC


	/**
	 * Assemble CSS styles from plugin options/settings
	 *
	 * @since    1.0.0
	 */
	protected function assemble_css_styles_from_options( $options ) {

		$this->gpo->render_dependencies( $this, false, false);
		$this->renderer->set_variables( array(
			'options' => $options,
		) );
		return preg_replace( '/[\r\n\t\f\v]{1,}/', '', $this->renderer->render( 'css-styles', 'specific' ) );
	} // FNC


	/*-------------------------------------------------------------------
	▐	5. TEAM MEMBER METABOXES AND SETTINGS | Edit/New member screen
	--------------------------------------------------------------------*/
	/**
	 * Add/Init team member metabox with settings | Edit/New team member
	 *
	 * @since    1.0.0
	 */
	public function team_member_meta_box_init() {
		add_meta_box(
			'amo-team-member-settings', // Meta box ID
			__( 'Team Member Settings', 'amo-team' ), // Title of the meta box.
			array( $this, 'display_member_settings_meta_box' ), // $callback
			'amo-team', // $screen - post type, page
			'normal', // The context within the screen where the boxes should display.
			'high' // Priority
		);
	} // team_member_meta_box_init | FNC


	/**
	 * Set available post formats | Edit/New team member
	 *
	 * @since    1.0.0
	 */
	public function set_post_formats_team_member_post_type() {
		global $typenow;
		if ( 'amo-team' == $typenow ) {
			add_theme_support( 'post-formats', array( 'image', 'quote', 'link' ) );
		} //IF
	} // remove_post_formats_from_team_member_post_type | FNC


	/**
	 * Display metabox | Edit/New team member
	 *
	 * @since    1.0.0
	 */
	public function display_member_settings_meta_box( $post ) {

		$this->gpo->render_dependencies( $this, false);

		//nonce for security
		wp_nonce_field( 'amo_team_member_metabox', 'amo_team_member_metabox_nonce' );

		$this->renderer->set_variables( array(

			'tab-panes' => $this->renderer->assemble_sub_views_for_page( 'member-meta-box', $this->main_subviews_folder, array(
				array(
					'name'  => 'opts', // wil be $opts in the template
					'value' => get_post_meta( $post->ID, 'amo-team-member-metabox', true )
				),
				array(
					'name'  => 'metabox', // wil be $opts in the template
					'value' => 'amo-team-member-metabox'
				),
			) ), // tab-panes
		) ); //set_variables

		echo $this->renderer->render( 'member-meta-box' );

	} // create_member_settings_meta_box | FNC


	/**
	 * Save member metabox form values/data to database
	 *
	 * @since    1.0.0
	 */
	public function team_member_meta_box_save( $post_id, $post, $update ) {

		// verify if this is not an auto save routine.
		// If the post has not been updated, we don't do anything
		if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
			return $post_id;
		}

		//check nonce for security
		if ( ! isset($_POST['amo-team-member-metabox']) || ! wp_verify_nonce( $_POST['amo_team_member_metabox_nonce'], 'amo_team_member_metabox' ) ) {
			return false;
		}

		// Get the post type object.
		$post_type = get_post_type_object( $post->post_type );
		// Check if the current user has permission to edit the post type.
		if ( ! current_user_can( $post_type->cap->edit_post, $post_id ) ) {
			return false;
		}

		// Sanitize metabox values
		$values = $this->sanitize_form_input_values( $_POST['amo-team-member-metabox'] );

		// Add post format entry to the array of values
		$values['post_format'] = get_post_format( $post_id );

		// Save/Update post's meta data
		update_post_meta( $post_id, 'amo-team-member-metabox', $values );
	} // team_member_meta_box_save | FNC


	/*-------------------------------------------------------------------
	▐	6. ADD ID, THUMB COLUMNS | All Member screen
	--------------------------------------------------------------------*/
	/**
	 * Adds 2 custom columns, on 'All Members' screen
	 *
	 * @since    1.0.0
	 */
	public function set_custom_post_column_names( $defaults ) {
		$defaults['amoteam_id'] = __( 'Member Shortcode', 'amo-team' );
		$defaults['amoteam_thumb'] = '';
		return $defaults;
	} // set_custom_post_column_names | FNC


	/**
	 * Renders mentioned in previous function custom columns on 'All Members' screen
	 *
	 * @since    1.0.0
	 */
	public function render_custom_post_column_names( $column_title, $post_id ) {
		switch ( $column_title ) {
			case 'amoteam_id':
				echo '[amo_member id="' . $post_id . '" item-width="250" align="left" item-margin="20" full-width="yes" panel="right"]';
				break;
			case 'amoteam_thumb':
				if ( has_post_thumbnail() ) {
					$attachment_array = wp_get_attachment_image_src( get_post_thumbnail_id(), 'thumbnail', true );

					// render thumbnail
					$this->gpo->render_dependencies( $this, false);
					$this->renderer->set_variables( array(
						'img_url' => $attachment_array[0],
					) );
					echo $this->renderer->render( 'general/post-list-thumb', $this->main_subviews_folder );
				}
				break;
			default:
				break;
		} // SWITCH
	} // render_custom_post_column_names | FNC


	/*-------------------------------------------------------------------
	▐	7. CATEGORY FILTER | team members list
	--------------------------------------------------------------------*/
	/**
	 * Display a custom taxonomy dropdown filter in admin | Custom post type list
	 *
	 * @since    1.0.0
	 */
	public function filter_post_type_by_taxonomy() {
		global $typenow;

		if ( $typenow == 'amo-team' ) {

			$taxonomy      = 'amo-team-category';
			$selected      = isset( $_GET[ $taxonomy ] ) ? $_GET[ $taxonomy ] : '';
			$info_taxonomy = get_taxonomy( $taxonomy );

			wp_dropdown_categories( array(
				'show_option_all' => __( "Show All {$info_taxonomy->label}", 'amo-team' ),
				'taxonomy'        => $taxonomy,
				'name'            => $taxonomy,
				'orderby'         => 'name',
				'selected'        => $selected,
				'show_count'      => true,
				'hide_empty'      => true,
			) );
		}; // IF 'amo-team'
	} // FNC


	/**
	 * Filter posts by taxonomy in admin | Custom post type list
	 *
	 * @since    1.0.0
	 */
	public function convert_id_to_term_in_query( $query ) {
		global $typenow;
		if ( $typenow == 'amo-team' ) {
			$current_screen = get_current_screen();

			if ( $current_screen->id == 'edit-amo-team' ) {
				$taxonomy  = 'amo-team-category';
				$q_vars    = &$query->query_vars;

				if ( isset( $q_vars[ $taxonomy ] ) && is_numeric( $q_vars[ $taxonomy ] ) && $q_vars[ $taxonomy ] != 0 ) {
					$term                = get_term_by( 'id', $q_vars[ $taxonomy ], $taxonomy );
					$q_vars[ $taxonomy ] = $term->slug;
				}
			} // IF current_screen == 'edit-amo-team'
		}
	} // FNC


	/*-------------------------------------------------------------------
	▐	8. ADD 'ID' COLUMN | Amo team Categories screen
	--------------------------------------------------------------------*/
	/**
	 * Adds ID column header, on amo team categories screen
	 *
	 * @since    1.0.0
	 */
	public function categories_columns_header( $columns ) {
		$columns['category-id'] = __( 'ID', 'amo-team' );
		return $columns;
	} // FNC


	/**
	 * Outputs category ID in the column, on amo team categories screen
	 *
	 * @since    1.0.0
	 */
	public function categories_columns_row( $argument, $column_name, $category_id ) {
		if ( $column_name == 'category-id' ) {
			return $category_id;
		}
	} // FNC


	/**
	 * Aligns custom ID column in our taxonomy/category list
	 * by adding WP native classes to it.
	 *
	 * @since    1.0.0
	 */
	public function align_taxonomy_custom_id_column(  ) {
	?>
		<script>
			jQuery( document ).ready( function( $ ) {
				'use strict';
				$( '.column-category-id' ).addClass('column-posts num');
			} );
		</script>
	<?php
	} // FNC


	/*  9. SHORTCODES GENERATING BUTTON & MODAL | EDITOR
	-------------------------------------------------------------------*/
	/**
	 * Renders shortcodes button, then shortcodes modal block; before and after WP editor
	 *
	 * @since    1.0.0
	 */
	public function add_amo_team_button_wp_editor($var) {
		$this->gpo->render_dependencies( $this, false);

		// if "edit_form_after_editor" action ($var is $post)
		if ( is_object( $var ) ) {
			// set variables for shortcodes modal block
			$this->renderer->set_variables( array(
				'link_title' => __( "Shortcode's documentation", 'amo-team' ),
				array(
					'title' => _x( 'Text Block', 'Shortcodes generating block', 'amo-team' ),
					'link'  => '//amothemo.com/docs/amo-team-showcase-documentation/' . Amo_Team_Showcase_AVH::get_lang_from_locale('/') . '#sc-text-block',
					'type'  => 'bio',
					'class' => '{p}icon-doc-text',
				),
				array(
					'title' => _x( 'Skills', 'Shortcodes generating block', 'amo-team' ),
					'link'  => '//amothemo.com/docs/amo-team-showcase-documentation/' . Amo_Team_Showcase_AVH::get_lang_from_locale('/') . '#sc-skills',
					'type'  => 'skills',
					'class' => '{p}icon-graduation-cap {p}icon-margin-fix',
				),
				array(
					'title' => _x( 'Team', 'Shortcodes generating block', 'amo-team' ),
					'link'  => '//amothemo.com/docs/amo-team-showcase-documentation/' . Amo_Team_Showcase_AVH::get_lang_from_locale('/') . '#sc-amoteam',
					'type'  => 'team',
					'class' => '{p}icon-users {p}icon-margin-fix',
				),
			) ); // End set_variables
			echo $this->renderer->render( 'post/sc-button-modal', $this->main_subviews_folder );
		} else { //"media_buttons" action
			echo $this->renderer->render( 'post/shortcodes-button', $this->main_subviews_folder );
		}
	} // add_amo_team_button_wp_editor | FNC


	/*  10. PLUGIN "ACTION" LINKS
	-------------------------------------------------------------------*/
	/**
	 * Add plugin action URL links | activate/deactivate plugins screen
	 *
	 * @return array plugin links
	 * @since 1.0.0
	 */
	public function add_plugin_actions_links( $links ) {
		$this->gpo->render_dependencies( null, false, true );

		$links[] = sprintf( '<a href="%s">%s</a>', admin_url( 'edit.php?post_type=amo-team&page=amo-team-options' ), __( 'Options', 'amo-team' ) );
		$links[] = sprintf( '<a target="_blank" href="%s">%s</a>', '//amothemo.com/docs/amo-team-showcase-documentation/' . Amo_Team_Showcase_AVH::get_lang_from_locale() . '/#ds-quic-start', __( 'Where to start?', 'amo-team' ) );
		return $links;
	}


	/*  11. IMAGE SIZES IN MEDIA LIBRARY
	-------------------------------------------------------------------*/
	/**
	 * Add new image size to the media library
	 *
	 * @param $sizes
	 *
	 * @return array image sizes array
	 * @since 1.0.0
	 */
	public function image_sizes_names( $sizes ) {
		$added_sizes = array(
			AMO_TEAM_SHOWCASE_CSS_PREFIX . "general" => __( "AMO Team general"),
		);
		return $sizes + (array)$added_sizes;
	} // FNC


	/*  12. ADD REMOVABLE QUERY ARGS
	-------------------------------------------------------------------*/
	/**
	 * Add certain plugin's query args to WP removable URL query arguments
	 *
	 * @return array $removable_query_args
	 * @since 1.0.0
	 */
	public function add_plugin_removable_query_args( $removable_query_args ) {
		if ( ! in_array( 'settings-reset', $removable_query_args ) ) {
			$removable_query_args[] = 'settings-reset';
		}
		return $removable_query_args;
	} // FNC
	

	/*  13. REMOVE VIEW LINK | All Members screen
	-------------------------------------------------------------------*/
	/**
	 * Removes "view" link from available links/actions
	 * for team member on All Members screen
	 *
	 * @return array $actions List of links
	 * @since 1.0.0
	 */
	function all_members_screen_remove_actions( $actions, $post )	{
		if ( $post->post_type == 'amo-team' ) {
			unset( $actions['view'] );
		}
		return $actions;
	} // FNC


} // Amo_Team_Showcase_Admin | CLASS