/*
Plugin Name: Houzez CRM
Plugin URI:  http://themeforest.net/user/favethemes
Description: Add insights for favethemes themes
Version:     1.3.2
Author:      Favethemes
Author URI:  http://themeforest.net/user/favethemes
*/

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

if ( ! class_exists( 'Houzez_CRM' ) ) :

    final class Houzez_CRM {
        public $version;
        public $plugin_name;
        protected static $_instance;

        public function __construct() {
            $this->plugin_name = 'houzez-crm';
            $this->version = '1.0.0';

            $this->define_constants();
            $this->initialize_admin_menu();
            $this->include_files();
            $this->init_hooks();

            add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ) );

            do_action( 'houzez_crm_loaded' );
        }

        public static function instance() {
            if ( is_null( self::$_instance ) ) {
                self::$_instance = new self();
            }
            return self::$_instance;
        }

        protected function define_constants() {
            define( 'HOUZEZ_CRM_VERSION', $this->version );
            define( 'HOUZEZ_CRM_PLUGIN_FILE', __FILE__ );
            define( 'HOUZEZ_CRM_DIR', plugin_dir_path( __FILE__ ) );
            define( 'HOUZEZ_CRM_URL', plugin_dir_url( __FILE__ ) );
            define( 'HOUZEZ_CRM_BASENAME', plugin_basename( __FILE__ ) );
        }

        public function enqueue_scripts() {
            if ( self::houzez_is_crm_page() ) {
                wp_enqueue_script( 'houzez-crm-script', HOUZEZ_CRM_URL . 'js/script.js', array('jquery'), $this->version, true );

                $locals = array(
                    'ajax_url' => admin_url('admin-ajax.php'),
                    'processing_text' => esc_html__('Processing, Please wait...', 'houzez-crm'),
                    'delete_confirmation' => esc_html__('Are you sure you want to delete?', 'houzez-crm'),
                );
                wp_localize_script( 'houzez-crm-script', 'Houzez_crm_vars', $locals ); 
            }
        }

        public static function houzez_is_crm_page() {
            return is_page_template('template/user_dashboard_crm.php');
        }

        public function include_files() {
            $files = [
                'includes/settings/settings-init.php',
                'includes/class-activities.php',
                'includes/class-notes.php',
                'includes/class-leads.php',
                'includes/class-enquiry.php',
                'includes/class-collect-form-data.php',
                'includes/class-deals.php',
                'includes/class-viewed.php',
                'includes/functions.php'
            ];
            foreach ($files as $file) {
                include_once( HOUZEZ_CRM_DIR . $file ); 
            }
        }

        public function initialize_admin_menu() {}

        public function init_hooks() {
            add_action( 'init', array( $this, 'load_plugin_textdomain' ) ); // **Fixed translation loading issue**
            register_activation_hook( __FILE__, array( $this, 'plugin_activation' ) );
            register_deactivation_hook( __FILE__, array( $this, 'plugin_deactivate' ) );
        }

        public function load_plugin_textdomain() {
            load_plugin_textdomain( 'houzez-crm', false, dirname( HOUZEZ_CRM_BASENAME ) . '/languages' );
        }

        public function plugin_activation() {
            global $wpdb;
            require_once ABSPATH . 'wp-admin/includes/upgrade.php';

            $charset_collate = $wpdb->get_charset_collate();

            $tables = [
                'houzez_crm_leads' => "(
                    lead_id bigint(25) unsigned NOT NULL AUTO_INCREMENT,
                    user_id bigint(25) unsigned NOT NULL DEFAULT '0',
                    first_name varchar(150),
                    last_name varchar(150),
                    email varchar(200) NOT NULL,
                    mobile varchar(200),
                    city varchar(100),
                    state varchar(100),
                    country varchar(255),
                    private_note text,
                    time TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
                    PRIMARY KEY  (lead_id)
                ) $charset_collate;",
                'houzez_crm_enquiries' => "(
                    enquiry_id bigint(25) unsigned NOT NULL AUTO_INCREMENT,
                    user_id bigint(25) unsigned NOT NULL DEFAULT '0',
                    lead_id bigint(25) unsigned NOT NULL DEFAULT '0',
                    listing_id bigint(25) unsigned NOT NULL DEFAULT '0',
                    message text,
                    time TIMESTAMP DEFAULT CURRENT_TIMESTAMP NOT NULL,
                    PRIMARY KEY  (enquiry_id)
                ) $charset_collate;"
            ];

            foreach ($tables as $table_name => $sql) {
                dbDelta( "CREATE TABLE {$wpdb->prefix}{$table_name} {$sql}" );
            }
        }

        public function plugin_deactivate() {}

        public function __wakeup() {
            _doing_it_wrong( __FUNCTION__, __( 'Not good; huh?', 'houzez-crm' ), HOUZEZ_CRM_VERSION );
        }

        public function __clone() {
            _doing_it_wrong( __FUNCTION__, __( 'Not good; huh?', 'houzez-crm' ), HOUZEZ_CRM_VERSION );
        }
    }

endif;

function HCRM_I() {
    return Houzez_CRM::instance();
}
HCRM_I();
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/wp-content/plugins/houzez-crm/houzez-crm.php:1) in <b>/var/www/wp-includes/pluggable.php</b> on line <b>1450</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /var/www/wp-content/plugins/houzez-crm/houzez-crm.php:1) in <b>/var/www/wp-includes/pluggable.php</b> on line <b>1453</b><br />