<?php
namespace Ari_Stream_Quiz;

use Ari\App\Plugin as Ari_Plugin;
use Ari\Utils\Request as Request;
use Ari_Stream_Quiz\Helpers\Settings as Settings;
use Ari_Stream_Quiz\Helpers\Quizzes_Screen as Quizzes_Screen;

class Plugin extends Ari_Plugin {
    private $new_post_quiz_data = null;

    public function init() {
        $this->load_translations();

        add_action( 'init', function() { $this->init_plugin(); } );

        add_shortcode( 'streamquiz', function( $attrs ) { return $this->shortcode_handler( $attrs ); } );

        if ( is_admin() ) {
            add_action( 'admin_enqueue_scripts', function() { $this->admin_enqueue_scripts(); } );
            add_action( 'admin_menu', function() { $this->admin_menu(); } );
            add_action( 'admin_init', function() { $this->admin_init(); } );
        } else {
            add_action( 'wp_enqueue_scripts', function() { $this->enqueue_scripts(); } );
        }

        add_filter( 'the_content', function( $content ) { return $this->prepare_quiz_preview( $content ); } );
        add_filter( 'the_title', function( $title ) { return $this->prepare_quiz_title_preview( $title ); } );
        add_filter(
            'set-screen-option',
            function( $status, $option, $value ) {
                return Quizzes_Screen::set_options( $status, $option, $value );
            },
            10,
            3
        );

        parent::init();
    }

    private function load_translations() {
        load_plugin_textdomain( 'ari-stream-quiz', false, ARISTREAMQUIZ_SLUG . '/languages/override' );
        load_plugin_textdomain( 'ari-stream-quiz', false, ARISTREAMQUIZ_SLUG . '/languages' );
    }

    private function init_plugin() {
        $post_type_args = array(
            'description' => '',

            'public' => false,

            'rewrite' => false,

            'publicly_queryable' => true,

            'exclude_from_search' => true,

            'show_in_nav_menus' => false,

            'show_ui' => false,

            'show_in_menu' => false,

            'show_in_admin_bar' => false,

            'can_export' => false,

            'delete_with_user' => false,

            'hierarchical' => false,

            'has_archive' => false,

            'supports' =>  array(
                'title'
            ),

            'capability_type' => 'post',
        );

        register_post_type( ARISTREAMQUIZ_POST_TYPE, $post_type_args );
    }

    private function prepare_quiz_title_preview( $title ) {
        global $post;

        if ( $post && is_user_logged_in() && ARISTREAMQUIZ_POST_TYPE == $post->post_type && is_main_query() && ! doing_action( 'wp_head' ) )  {
            $quiz_title = get_post_meta( $post->ID, 'quiz_title', true );

            return $quiz_title ? $quiz_title : $title;
        }

        return $title;
    }

    private function prepare_quiz_preview( $content ) {
        global $post;

        if ( is_user_logged_in() && ARISTREAMQUIZ_POST_TYPE == $post->post_type && is_main_query() && ! doing_action( 'wp_head' ) )  {
            $quiz_id = get_post_meta( $post->ID, 'quiz_id', true );

            return $content . do_shortcode( '[streamquiz id="' . $quiz_id . '" hide_title="1"]');
        }

        return $content;
    }

    private function admin_menu() {
        $quizzes_pages = array();

        $quizzes_pages[] = add_menu_page(
            __( 'ARI Stream Quiz', 'ari-stream-quiz' ),
            __( 'ARI Stream Quiz', 'ari-stream-quiz' ),
            'edit_posts',
            'ari-stream-quiz',
            array( $this, 'display_quizzes' ),
            'dashicons-schedule'
        );

        $quizzes_pages[] = add_submenu_page(
            'ari-stream-quiz',
            __( 'Quizzes', 'ari-stream-quiz' ),
            __( 'Quizzes', 'ari-stream-quiz' ),
            'edit_posts',
            'ari-stream-quiz-quizzes',
            array( $this, 'display_quizzes' )
        );

        add_submenu_page(
            'ari-stream-quiz',
            __( 'Settings', 'ari-stream-quiz' ),
            __( 'Settings', 'ari-stream-quiz' ),
            'manage_options',
            'ari-stream-quiz-settings',
            array( $this, 'display_settings' )
        );

        // Hidden pages
		add_submenu_page(
            null,
            '',
            '',
            'edit_posts',
            'ari-stream-quiz-quiz',
            array( $this, 'display_quiz' )
        );
		
		remove_submenu_page( 'ari-stream-quiz', 'ari-stream-quiz' );

        foreach ( $quizzes_pages as $quizzes_page ) {
            add_action( 'load-' . $quizzes_page, function() {
                Quizzes_Screen::register();
            });
        }

        add_filter( 'parent_file', function( $file ) {
            global $plugin_page;

            if ( ! $plugin_page && strpos( $plugin_page, 'ari-stream-quiz' ) !== 0 )
                return $file;

            switch ( $plugin_page ) {
                case 'ari-stream-quiz-quiz':
                    $plugin_page = 'ari-stream-quiz-quizzes';
                    break;
            }

            return $file;
        });
    }

	private function admin_enqueue_scripts() {
		$options = $this->options;

        wp_register_script( 'ari-materialize', $options->assets_url . 'materialize/js/materialize.min.js', array( 'jquery' ), $options->version );
        wp_register_style( 'ari-streamquiz-materialize', $options->assets_url . 'materialize/css/materialize.min.css', array(), $options->version );
        wp_register_style( 'ari-materialize-icons', 'https://fonts.googleapis.com/icon?family=Material+Icons', array() );

        wp_register_script( 'ari-streamquiz-app', $options->assets_url . 'common/app.js', array( 'jquery' ), $options->version );
        wp_register_script( 'ari-scrollto', $options->assets_url . 'scroll_to/jquery.scrollTo.min.js', array( 'jquery' ), $options->version );
        wp_register_script( 'ari-cloner', $options->assets_url . 'cloner/js/jquery.cloner.min.js', array( 'jquery', 'jquery-ui-draggable', 'jquery-ui-sortable', 'ari-scrollto' ), $options->version );
        wp_register_script( 'ari-cloner-ext', $options->assets_url . 'common/cloner.ext.js', array( 'ari-cloner' ), $options->version );
        wp_register_script( 'ari-smart-dropdown', $options->assets_url . 'common/smart_dropdown.js', array( 'jquery' ), $options->version );

        wp_register_script( 'ari-clipboard', $options->assets_url . 'clipboard/clipboard.min.js', array(), $options->version );

        wp_register_script( 'ari-quill', $options->assets_url . 'quill/js/quill.min.js', array(), $options->version );
        wp_register_style( 'ari-quill-snow', $options->assets_url . 'quill/css/quill.snow.css', array(), $options->version );

        wp_register_script( 'ari-trumbowyg', $options->assets_url . 'trumbowyg/js/trumbowyg.min.js', array(), $options->version );
        wp_register_style( 'ari-trumbowyg', $options->assets_url . 'trumbowyg/css/trumbowyg.min.css', array(), $options->version );
	}

    private function enqueue_scripts() {
        $options = $this->options;

		wp_register_style( 'ari-quiz-theme', ARISTREAMQUIZ_URL . 'themes/assets/css/theme.css', array(), ARISTREAMQUIZ_VERSION );

        wp_register_script( 'ari-scrollto', $options->assets_url . 'scroll_to/jquery.scrollTo.min.js', array( 'jquery' ), $options->version );
        wp_register_script( 'ari-quiz', $options->assets_url . 'common/jquery.quiz.js', array( 'jquery', 'ari-scrollto' ), $options->version );
    }

    private function shortcode_handler( $attrs ) {
        if ( empty( $attrs['id'] ) )
            return __( 'Please specify a quiz ID', 'ari-stream-quiz' );

        $options = array(
            'model_options' => array(
                'state' => $attrs
            )
        );

        return $this->display_quiz_session( $options );
    }

    private function admin_init() {
        Settings::init();

        add_filter( 'admin_title', function() { return $this->prepare_titles(); } );

        add_filter( 'default_content', function( $content ) { return $this->prepare_new_post_content( $content ); } );
        add_filter( 'default_title', function( $title ) { return $this->prepare_new_post_title( $title ); } );

        $no_header = (bool) Request::get_var( 'noheader' );

        if ( ! $no_header ) {
            $page = Request::get_var( 'page' );

            if ( 0 === strpos( $page, 'ari-stream-quiz' ) ) {
                ob_start();

                add_action( 'admin_page_' . $page , function() {
                    ob_end_flush();
                }, 99 );
            }
        }
    }

    private function prepare_titles() {
        global $admin_title;

        $title = $admin_title;

        $page = Request::get_var( 'page' );
        $action = Request::get_var( 'action' );

        switch ( $page ) {
            case 'ari-stream-quiz-quiz':
                $title = ( $action == 'edit' ? __( 'Edit Quiz', 'ari-stream-quiz' ) : __( 'Add New Quiz', 'ari-stream-quiz' ) ) . $title;
                break;
        }

        return $title;
    }

    private function get_new_post_quiz_data() {
        if ( ! is_null( $this->new_post_quiz_data ) )
            return $this->new_post_quiz_data;

        $quiz_data = array(
            'id' => 0,

            'title' => ''
        );

        if ( Request::exists( 'stream_quiz' ) ) {
            $req_quiz_data = Request::get_var( 'stream_quiz', array() );

            if ( ! empty( $req_quiz_data['id'] ) ) {
                $quiz_id = intval( $req_quiz_data['id'], 10 );

                if ($quiz_id > 0)
                    $quiz_data['id'] = $quiz_id;
            }

            if ( isset( $req_quiz_data['title'] ) )
                $quiz_data['title'] = $req_quiz_data['title'];
        }

        $this->new_post_quiz_data = $quiz_data;

        return $this->new_post_quiz_data;
    }

    private function prepare_new_post_title( $title ) {
        $quiz_data = $this->get_new_post_quiz_data();

        if ( $quiz_data['id'] < 1 )
            return $title;

        $title .= $quiz_data['title'];

        return $title;
    }

    private function prepare_new_post_content( $content ) {
        $quiz_data = $this->get_new_post_quiz_data();

        if ( $quiz_data['id'] < 1 )
            return $content;

        $content .= sprintf(
            '[streamquiz id="%1$d"]',
            $quiz_data['id']
        );

        return $content;
    }

    protected function need_to_update() {
        $installed_version = get_option( ARISTREAMQUIZ_VERSION_OPTION );

        return ( $installed_version != $this->options->version );
    }

    protected function install() {
        $installer = new \Ari_Stream_Quiz\Installer();

        return $installer->run();
    }
}