<?php
/**
 * Optional sample event generator for development. Disabled unless EVLFL_ENABLE_TEST_DATA is true.
 * Writes only to the log table; never touches real enrollments.
 *
 * @package Enrollment_Verifier_Logger
 */

defined( 'ABSPATH' ) || exit;

/**
 * Sample data.
 */
class EVLFL_Test_Data {

	/**
	 * Whether the feature is enabled.
	 *
	 * @return bool
	 */
	public static function is_enabled() {
		return defined( 'EVLFL_ENABLE_TEST_DATA' ) && true === EVLFL_ENABLE_TEST_DATA;
	}

	/**
	 * Insert representative sample events.
	 *
	 * @param EVLFL_Logger $logger  Repository.
	 * @param int          $user_id Real user to attach most samples to (typically the current admin).
	 * @return int Number of rows inserted.
	 */
	public static function generate( EVLFL_Logger $logger, $user_id ) {
		$user_id = absint( $user_id );
		$ghost   = 4000000; // Almost certainly a non-existent user/course: exercises deleted placeholders.
		$rows    = array(
			array( 'enrolled', $user_id, 100001, 'admin', 'manual', 'admin', $user_id, 'valid', 'Access present after enrollment.', 'detected' ),
			array( 'enrolled', $user_id, 100001, 'unknown', 'unknown', 'unknown', 0, 'unknown', 'Resulting access state could not be confirmed.', 'unknown' ),
			array( 'unenrolled', $user_id, 100001, 'learndash', 'course_access_expired', 'system', 0, 'valid', 'LearnDash reported access as expired.', 'confirmed' ),
			array( 'unenrolled', $user_id, 100002, 'rest_api', 'api', 'api', $user_id, 'invalid', 'Unenrolled while expiration is in the future.', 'inferred' ),
			array( 'unenrolled', $user_id, 100002, 'unknown', 'unknown', 'unknown', 0, 'unknown', 'Cause could not be determined.', 'unknown' ),
			array( 'enrolled', $ghost, 100003, 'cron', 'unknown', 'cron', 0, 'unknown', 'Deleted user sample.', 'detected' ),
			array( 'unenrolled', $user_id, $ghost + 1, 'wp_cli', 'bulk_operation', 'system', 0, 'unknown', 'Deleted course sample.', 'detected' ),
		);
		$count   = 0;
		$offset  = count( $rows );
		foreach ( $rows as $i => $r ) {
			$event = EVLFL_Event::normalize(
				array(
					'action'              => $r[0],
					'user_id'             => $r[1],
					'course_id'           => $r[2],
					'source'              => $r[3],
					'event_trigger'       => $r[4],
					'actor_type'          => $r[5],
					'actor_id'            => $r[6],
					'status'              => $r[7],
					'verification_reason' => $r[8],
					'confidence'          => $r[9],
					'event_time'          => gmdate( 'Y-m-d H:i:s', time() - ( ( $offset - $i ) * 3600 ) ),
					'metadata'            => array(
						'test_data'    => true,
						'request_type' => 'sample',
					),
				)
			);
			if ( $event && $logger->insert( $event ) ) {
				++$count;
			}
		}
		return $count;
	}
}