<?php

namespace FQP;

class FQP {
    const PARTNER_POST_TYPE = 'fasoon_partner';
    const TEXT_DOMAIN = 'fasoon-quote-a-price';

    const QUOTE_FORM_PAGE_ID_OPTION = 'fasoon_quote_form_page_id';

    const DEFAULT_LANGUAGE = 'en';
    const DEFAULT_LANGUAGE_TITLE = 'English';
    const DEFAULT_LANGUAGE_LOCALE = 'en';

    const NONCE_FIELD = '_fqp_nonce';

    const ENTRY_TYPE_AG = 1; // AG
    const ENTRY_TYPE_LTD = 2; // GmbH
    const ENTRY_TYPE_SINGLE_COMPANY = 3; // Einzelfirma
    const ENTRY_TYPE_COLLECTIVE_COMPANY = 4; // Kollektivgesellschaft

    const BACKING_TYPE_CASH = 1; // Bareinlage
    const BACKING_TYPE_GOODS = 2; // Sacheinlage

    const EMAIL_REGEX = '/^(?!(?:(?:\x22?\x5C[\x00-\x7E]\x22?)|(?:\x22?[^\x5C\x22]\x22?)){255,})(?!(?:(?:\x22?\x5C[\x00-\x7E]\x22?)|(?:\x22?[^\x5C\x22]\x22?)){65,}@)(?:(?:[\x21\x23-\x27\x2A\x2B\x2D\x2F-\x39\x3D\x3F\x5E-\x7E]+)|(?:\x22(?:[\x01-\x08\x0B\x0C\x0E-\x1F\x21\x23-\x5B\x5D-\x7F]|(?:\x5C[\x00-\x7F]))*\x22))(?:\.(?:(?:[\x21\x23-\x27\x2A\x2B\x2D\x2F-\x39\x3D\x3F\x5E-\x7E]+)|(?:\x22(?:[\x01-\x08\x0B\x0C\x0E-\x1F\x21\x23-\x5B\x5D-\x7F]|(?:\x5C[\x00-\x7F]))*\x22)))*@(?:(?:(?!.*[^.]{64,})(?:(?:(?:xn--)?[a-z0-9]+(?:-[a-z0-9]+)*\.){1,126}){1,}(?:(?:[a-z][a-z0-9]*)|(?:(?:xn--)[a-z0-9]+))(?:-[a-z0-9]+)*)|(?:\[(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){7})|(?:(?!(?:.*[a-f0-9][:\]]){7,})(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,5})?::(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,5})?)))|(?:(?:IPv6:(?:(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){5}:)|(?:(?!(?:.*[a-f0-9]:){5,})(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,3})?::(?:[a-f0-9]{1,4}(?::[a-f0-9]{1,4}){0,3}:)?)))?(?:(?:25[0-5])|(?:2[0-4][0-9])|(?:1[0-9]{2})|(?:[1-9]?[0-9]))(?:\.(?:(?:25[0-5])|(?:2[0-4][0-9])|(?:1[0-9]{2})|(?:[1-9]?[0-9]))){3}))\]))$/iD';
    const NUMERIC_REGEX = '/^[0-9]+$/iD';

    const VAT = 8.1;

    const UTM_SESSION_VAR = '__utm_referrer';

    protected static $_utm_referrer_fields_map = [
        'utm_source'   => 'Ref_Source',
        'utm_medium'   => 'Ref_Medium',
        'utm_campaign' => 'Ref_Name',
        'utm_term'     => 'Ref_Term',
        'utm_content'  => 'Ref_Content',
    ];

    public static function get_curr_lang() {
        $lang = apply_filters( 'wpml_current_language', null );
        if ( !$lang ) {
            $lang = self::DEFAULT_LANGUAGE;
        }
        return $lang;
    }

    public static function get_lang_list() {
        $list = apply_filters( 'wpml_active_languages', null, 'orderby=id&order=desc' );
        if ( !$list ) {
            $list = [
                self::DEFAULT_LANGUAGE => [
                    'code'             => self::DEFAULT_LANGUAGE,
                    'id'               => null,
                    'native_name'      => self::DEFAULT_LANGUAGE_TITLE,
                    'major'            => null,
                    'active'           => null,
                    'default_locale'   => self::DEFAULT_LANGUAGE_LOCALE,
                    'encode_url'       => null,
                    'tag'              => self::DEFAULT_LANGUAGE,
                    'translated_name'  => self::DEFAULT_LANGUAGE_TITLE,
                    'url'              => null,
                    'country_flag_url' => null,
                    'language_code'    => self::DEFAULT_LANGUAGE,
                ]
            ];
        }

        return $list;
    }

    public function bootstrap() {
        register_activation_hook( FQP_PLUGIN_BASE_NAME, [ $this, 'activate' ] );

        add_action( 'init', [ $this, 'start_session' ] );
        add_action( 'init', [ $this, 'check_referrer' ] );
        add_action( 'init', [ $this, 'load_textdomain' ] );
        add_action( 'init', [ $this, 'register_post_type' ] );
        add_action( 'init', [ $this, 'add_shortcodes' ] );

        $settings = new Settings();
        add_action( 'admin_init', [ $settings, 'register_settings' ] );
        add_action( 'admin_menu', [ $settings, 'admin_menu' ] );
        add_action( 'admin_enqueue_scripts', [ $this, 'admin_enqueue_scripts' ] );
        add_action( 'admin_post_fqp_export_csv', function () {
            ( new SubmissionsExport() )->export();
        } );

        add_action( 'wp_enqueue_scripts', [ $this, 'enqueue_scripts' ] );

        add_action( 'save_post', [ $this, 'set_quote_post_id' ], 10, 2 );

        Bank::init();
        Product::init();
        ZOHO::init_actions();
    }

    public function activate() {
        //DB::init_database();
    }

    public function start_session() {
        if ( headers_sent() ) {
            // nothing to do
        } else if ( !session_id() ) {
            session_start();
        }
    }

    public function register_post_type() {
        register_post_type(
            self::PARTNER_POST_TYPE,
            [
                'labels' => array(
                    'name'               => 'Partners',
                    'singular_name'      => 'Partner',
                    'add_new'            => 'Add New Partner',
                    'add_new_item'       => 'New Partner',
                    'edit_item'          => 'Edit Partner',
                    'new_item'           => 'New Partner',
                    'view_item'          => 'View Partner',
                    'search_items'       => 'Search Partner',
                    'not_found'          => 'Partner was not found',
                    'not_found_in_trash' => 'No Partner was found in Trash',
                    'parent_item_colon'  => '',
                    'menu_name'          => 'Partners',
                ),
                'description'       => '',
                'public'            => true,
                'show_ui'           => true,
                'show_in_menu'      => false,
                'capability_type'   => 'post',
                'hierarchical'      => false,
                'supports'          => ['title', 'editor', 'thumbnail', 'excerpt', 'revisions', 'page-attributes'], // 'title','editor','author','thumbnail','excerpt','trackbacks','custom-fields','comments','revisions','page-attributes','post-formats'
                'taxonomies'        => [],
                'has_archive'       => false,
                'rewrite'           => [
                    'slug' => 'partner',
                ],
                'query_var'         => true,
                'menu_icon'         => plugins_url( 'img/icon.png', FQP_PLUGIN_BASE_NAME ),
            ]
        );
    }

    public function load_textdomain() {
        $path = FQP_PLUGIN_DIR_PATH . 'languages/';

        $langs = self::get_lang_list();
        $lang = self::get_curr_lang();
        if ( array_key_exists( $lang, $langs ) ) {
            $locale = $langs[$lang]['default_locale'];
        } else {
            $locale = get_locale();
        }

        $mo_file = self::TEXT_DOMAIN . '-' . $locale . '.mo';
        if ( $loaded = load_textdomain( self::TEXT_DOMAIN, $path . $mo_file ) ) {
            return $loaded;
        }
        return load_textdomain( self::TEXT_DOMAIN, WP_LANG_DIR . '/plugins/' . $mo_file );
    }

    public function admin_enqueue_scripts( $hook )
    {
        $is_prices_page = ( dirname( FQP_PLUGIN_BASE_NAME ) . '/admin/prices.php' == $hook );

        wp_enqueue_style( 'fasoon_quote', plugins_url( '/css/admin.css', FQP_PLUGIN_BASE_NAME ) );
        if ( $is_prices_page ) { 
            wp_enqueue_script( 'auto_numeric', plugins_url( '/js/autoNumeric/autoNumeric-min.js', FQP_PLUGIN_BASE_NAME ), [ 'jquery' ] );
            wp_enqueue_script( 'fasoon', plugins_url( '/js/fasoon-quote.js', FQP_PLUGIN_BASE_NAME ), [ 'auto_numeric' ] );
        }
    }

    public function enqueue_scripts() {

        global $post;
        if ( is_a( $post, 'WP_Post' ) && ( 
            has_shortcode( $post->post_content, 'fasoon_short_pricing' ) 
            || has_shortcode( $post->post_content, 'fasoon_full_pricing' ) 
            || has_shortcode( $post->post_content, 'fasoon_quote_price' ) 
        ) )  {
            wp_enqueue_style( 'fasoon_quote_price', plugins_url( '/css/user.css', FQP_PLUGIN_BASE_NAME ) );
        }
    }

    public function add_shortcodes() {
        new Shortcode\ShortPricing();
        new Shortcode\FullPricing();
        new Shortcode\QuotePrice();
    }

    public function set_quote_post_id( $post_id, $post ) {
        if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
            return $post_id;
        }

        if ( !is_a( $post, 'WP_Post' ) || !has_shortcode( $post->post_content, 'fasoon_quote_price' ) ) {
            return $post_id;
        }

        if ( !current_user_can( 'edit_page', $post_id ) ) {
            return $post_id;
        }

        $value = get_option( self::QUOTE_FORM_PAGE_ID_OPTION );
        if ( !is_array( $value ) ) {
            $value = [];
        }
        $value[self::get_curr_lang()] = $post_id;
        update_option( self::QUOTE_FORM_PAGE_ID_OPTION, $value );

        return $post_id;
    }

    public function check_referrer() {
        if ( ! empty( @$_GET['utm_source'] )
            && ! empty( @$_GET['utm_medium'] )
            && ! empty( @$_GET['utm_campaign'] )
        ) {
            self::set_referrer();
        }
    }

    public static function set_referrer() {
        foreach ( array_keys( self::get_referrer_fields_map() ) as $field ) {
            $key = self::$_utm_referrer_fields_map[$field];
            $default = ( in_array( $field, [ 'utm_term', 'utm_content' ] ) ) ? '' : 'UNDEFINED';
            $_SESSION[self::UTM_SESSION_VAR][$key] = @$_GET[$field] ?: $default;
        }
    }

    public static function get_referrer() {
        if ( array_key_exists( self::UTM_SESSION_VAR, $_SESSION ) && is_array( $_SESSION[self::UTM_SESSION_VAR] ) ) {
            return $_SESSION[self::UTM_SESSION_VAR];
        }
        return [];
    }

    public static function clear_referrer() {
        unset($_SESSION[self::UTM_SESSION_VAR]);
    }

    public static function get_referrer_fields_map()
    {
        return self::$_utm_referrer_fields_map;
    }
}