<?php

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

/**
 * Simple logger for the AI Semantic Handshake plugin.
 * Stores logs in wp_options, keeping the last 100 entries.
 */
class AISH_Logger {

	/**
	 * Option key for storing logs.
	 */
	const OPTION_KEY = 'aish_log';

	/**
	 * Maximum number of log entries to keep.
	 */
	const MAX_ENTRIES = 100;

	/**
	 * Add a log entry.
	 *
	 * @param string $type    Log type: 'info', 'success', 'warning', 'error'.
	 * @param string $message Log message.
	 * @param array  $context Optional context data.
	 */
	public static function log( $type, $message, $context = array() ) {
		$logs = get_option( self::OPTION_KEY, array() );
		$message = trim( (string) $message );
		if ( '' === $message ) {
			$message = 'Log event recorded without a message.';
		}

		$entry = array(
			'time'    => current_time( 'mysql' ),
			'type'    => $type,
			'message' => $message,
		);

		if ( ! empty( $context ) ) {
			$entry['context'] = $context;
		}

		// Prepend new entry.
		array_unshift( $logs, $entry );

		// Trim to max entries.
		$logs = array_slice( $logs, 0, self::MAX_ENTRIES );

		update_option( self::OPTION_KEY, $logs, false );
	}

	/**
	 * Get all log entries.
	 *
	 * @param int $limit Number of entries to retrieve. 0 for all.
	 * @return array
	 */
	public static function get_logs( $limit = 0 ) {
		$logs = get_option( self::OPTION_KEY, array() );

		if ( $limit > 0 ) {
			return array_slice( $logs, 0, $limit );
		}

		return $logs;
	}

	/**
	 * Clear all logs.
	 */
	public static function clear() {
		delete_option( self::OPTION_KEY );
	}
}