<?php

namespace FluentCrmMigrations;

class Subscribers
{

    /**
     * Migrate the table.
     *
     * @return void
     */
    public static function migrate()
    {
        global $wpdb;

        $charsetCollate = $wpdb->get_charset_collate();

        $table = $wpdb->prefix .'fc_subscribers';

        $indexPrefix = $wpdb->prefix .'fc_index_';

        // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
        if ($wpdb->get_var("SHOW TABLES LIKE '$table'") != $table) {
            // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
            $sql = "CREATE TABLE $table (
                `id` BIGINT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
                `user_id` BIGINT UNSIGNED NULL,
                `hash` VARCHAR(90) NULL,
                `contact_owner` BIGINT UNSIGNED NULL,
                `company_id` BIGINT UNSIGNED NULL,
                `prefix` VARCHAR(192) NULL,
                `first_name` VARCHAR(192) NULL,
                `last_name` VARCHAR(192) NULL,
                `email` VARCHAR(190) NOT NULL UNIQUE,
                `timezone` VARCHAR(192) NULL,
                `address_line_1` VARCHAR(192) NULL,
                `address_line_2` VARCHAR(192) NULL,
                `postal_code` VARCHAR(192) NULL,
                `city` VARCHAR(192) NULL,
                `state` VARCHAR(192) NULL,
                `country` VARCHAR(192) NULL,
                `ip` VARCHAR(40) NULL,
                `latitude` DECIMAL(10, 8) NULL,
                `longitude` DECIMAL(10, 8) NULL,
                `total_points` INT UNSIGNED NOT NULL DEFAULT 0,
                `life_time_value` INT UNSIGNED NOT NULL DEFAULT 0,
                `phone` VARCHAR(50) NULL,
                `status` VARCHAR(50) NOT NULL DEFAULT 'subscribed', /*subscribed, unsubscribed, pending, bounced*/
                `contact_type` VARCHAR(50) DEFAULT 'lead', /*lead, customer*/
                `source` VARCHAR(50) NULL,
                `avatar` VARCHAR(192) NULL,
                `date_of_birth` DATE NULL,
                `created_at` TIMESTAMP NULL,
                `last_activity` TIMESTAMP NULL,
                `updated_at` TIMESTAMP NULL,
                 INDEX `{$indexPrefix}_subscriber_user_id_idx` (`user_id` ASC),
                 INDEX `subscriber_status_created_idx` (`status`, `created_at`)
            ) $charsetCollate;";

            dbDelta($sql);
        } else {
            // change ip column from 20 to 40 to support ipv6
            $column_name = 'ip';
            // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
            $sql = "ALTER TABLE {$table} MODIFY {$column_name} VARCHAR(40) NULL;";
            // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
            $wpdb->query($sql);

            // Reporting index — owned by DbPerformanceService so the migration and
            // the runtime health-check/repair path share one definition. Its leading
            // `status` column also covers status-only queries, which is why fresh
            // installs no longer create a separate plain `status` index (existing
            // installs keep their legacy one — harmless duplication).
            \FluentCrm\App\Services\DbPerformanceService::ensureCriticalIndex('subscriber_status_created_idx');
        }
    }
}