/* ==========================================================================
   1. gmrtc-db-setup.php
   ========================================================================== */
if ( ! defined( 'ABSPATH' ) ) exit;

function gmrtc_install_database() {
    global $wpdb;
    $charset_collate = $wpdb->get_charset_collate();

    $table_trainings = $wpdb->prefix . 'gmrtc_trainings';
    $table_participants = $wpdb->prefix . 'gmrtc_participants';
    $table_settings = $wpdb->prefix . 'gmrtc_settings';
    $table_logs = $wpdb->prefix . 'gmrtc_logs';

    $sql = "CREATE TABLE $table_trainings (
        id bigint(20) NOT NULL AUTO_INCREMENT,
        trn_id varchar(8) NOT NULL,
        title varchar(80) NOT NULL,
        start_date date NOT NULL,
        end_date date NOT NULL,
        days int(3) NOT NULL,
        type varchar(20) NOT NULL,
        lang varchar(10) NOT NULL,
        slogan varchar(255),
        explanation text,
        quota int(5) NOT NULL,
        price_try decimal(10,2) NOT NULL,
        price_usd decimal(10,2) NOT NULL,
        discount_pct int(3) DEFAULT 0,
        poster_url varchar(255),
        status varchar(20) DEFAULT 'Template' NOT NULL,
        cert_bg_attendance varchar(255),
        cert_bg_bronze varchar(255),
        cert_bg_silver varchar(255),
        cert_bg_gold varchar(255),
        cert_text_achieved text,
        cert_text_attendance text,
        created_at datetime DEFAULT CURRENT_TIMESTAMP,
        PRIMARY KEY  (id),
        UNIQUE KEY trn_id (trn_id)
    ) $charset_collate;

    CREATE TABLE $table_participants (
        id bigint(20) NOT NULL AUTO_INCREMENT,
        ptcp_certno bigint(20) NOT NULL,
        trn_id varchar(8) NOT NULL,
        ptcp_status varchar(30) DEFAULT 'Prestart' NOT NULL,
        ptcp_name varchar(100) NOT NULL,
        ptcp_surname varchar(100) NOT NULL,
        ptcp_email varchar(100) NOT NULL,
        ptcp_tel varchar(30) NOT NULL,
        ptcp_address text,
        ptcp_province varchar(50) NOT NULL,
        ptcp_country varchar(50) NOT NULL,
        ptcp_organization varchar(150),
        ptcp_jobtitle varchar(100),
        ptcp_billing_type varchar(20) DEFAULT 'Individual',
        ptcp_tax_office varchar(100),
        ptcp_tax_no varchar(50),
        ip_address varchar(45) NOT NULL,
        test1_weight decimal(5,2) DEFAULT 0,
        test1_grade decimal(5,2) DEFAULT 0,
        test2_weight decimal(5,2) DEFAULT 0,
        test2_grade decimal(5,2) DEFAULT 0,
        test3_weight decimal(5,2) DEFAULT 0,
        test3_grade decimal(5,2) DEFAULT 0,
        bonus1_pts decimal(5,2) DEFAULT 0,
        bonus2_pts decimal(5,2) DEFAULT 0,
        bonus3_pts decimal(5,2) DEFAULT 0,
        achieved_level varchar(20),
        paid_try decimal(10,2) DEFAULT 0,
        paid_usd decimal(10,2) DEFAULT 0,
        date_paid datetime,
        refund_try decimal(10,2) DEFAULT 0,
        refund_usd decimal(10,2) DEFAULT 0,
        date_refund datetime,
        req_pay_hash varchar(64),
        req_pay_exp datetime,
        approval_date datetime,
        certified_date datetime,
        created_at datetime DEFAULT CURRENT_TIMESTAMP,
        PRIMARY KEY  (id),
        UNIQUE KEY ptcp_certno (ptcp_certno)
    ) $charset_collate;

    CREATE TABLE $table_settings (
        id bigint(20) NOT NULL AUTO_INCREMENT,
        setting_key varchar(50) NOT NULL,
        setting_value text NOT NULL,
        PRIMARY KEY  (id),
        UNIQUE KEY setting_key (setting_key)
    ) $charset_collate;

    CREATE TABLE $table_logs (
        id bigint(20) NOT NULL AUTO_INCREMENT,
        log_type varchar(50) NOT NULL,
        ip_address varchar(45) NOT NULL,
        location varchar(100),
        target_id varchar(50) NOT NULL,
        created_at datetime DEFAULT CURRENT_TIMESTAMP,
        PRIMARY KEY  (id)
    ) $charset_collate;";

    require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
    dbDelta( $sql );

    $default_settings = array(
        'smtp_host' => 'smtp.hostinger.com',
        'smtp_port' => '465',
        'smtp_user' => '',
        'smtp_pass' => '',
        'notify_email' => '',
        'iyzico_api_key' => '',
        'iyzico_secret_key' => '',
        'iyzico_base_url' => 'https://sandbox-api.iyzipay.com',
        'max_ip_attempts' => '5',
        'recaptcha_site_key' => '',
        'recaptcha_secret_key' => ''
    );

    foreach ( $default_settings as $key => $value ) {
        $wpdb->query( $wpdb->prepare( "INSERT IGNORE INTO $table_settings (setting_key, setting_value) VALUES (%s, %s)", $key, $value ) );
    }
}

function gmrtc_reset_database() {
    global $wpdb;
    $wpdb->query("DROP TABLE IF EXISTS {$wpdb->prefix}gmrtc_trainings");
    $wpdb->query("DROP TABLE IF EXISTS {$wpdb->prefix}gmrtc_participants");
    $wpdb->query("DROP TABLE IF EXISTS {$wpdb->prefix}gmrtc_settings");
    $wpdb->query("DROP TABLE IF EXISTS {$wpdb->prefix}gmrtc_logs");
    gmrtc_install_database();
}

add_action('admin_init', 'gmrtc_check_reset_database');
function gmrtc_check_reset_database() {
    if ( isset($_GET['gmrtc_reset']) && $_GET['gmrtc_reset'] == '1' && current_user_can('manage_options') ) {
        gmrtc_reset_database();
        exit('Database reset successful. Please remove ?gmrtc_reset=1 from the URL and refresh.');
    }
}
?>