<?php
/**
 * PSR-3 logger adapter.
 *
 * Wraps APWPM_Logger in a PSR-3-compatible interface so any library
 * that already accepts a `Psr\Log\LoggerInterface` can drop the
 * timeline in as its sink.
 *
 * Returned via `APWPM_PSR3::get_logger()`. We don't auto-load the PSR
 * interfaces — if Composer's autoload provides them we extend; if
 * not we implement the same method names and accept untyped args.
 *
 * @package ActivityPilot
 */

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

final class APWPM_PSR3 {

	/** @var string */
	const LEVEL_EMERGENCY = 'emergency';
	const LEVEL_ALERT     = 'alert';
	const LEVEL_CRITICAL  = 'critical';
	const LEVEL_ERROR     = 'error';
	const LEVEL_WARNING   = 'warning';
	const LEVEL_NOTICE    = 'notice';
	const LEVEL_INFO      = 'info';
	const LEVEL_DEBUG     = 'debug';

	const MAP = array(
		'emergency' => 'critical',
		'alert'     => 'critical',
		'critical'  => 'critical',
		'error'     => 'error',
		'warning'   => 'warning',
		'notice'    => 'info',
		'info'      => 'info',
		'debug'     => 'info',
	);

	public function emergency( $message, array $context = array() ) { return $this->log( 'emergency', $message, $context ); }
	public function alert( $message, array $context = array() )     { return $this->log( 'alert',     $message, $context ); }
	public function critical( $message, array $context = array() )  { return $this->log( 'critical',  $message, $context ); }
	public function error( $message, array $context = array() )     { return $this->log( 'error',     $message, $context ); }
	public function warning( $message, array $context = array() )   { return $this->log( 'warning',   $message, $context ); }
	public function notice( $message, array $context = array() )    { return $this->log( 'notice',    $message, $context ); }
	public function info( $message, array $context = array() )      { return $this->log( 'info',      $message, $context ); }
	public function debug( $message, array $context = array() )     { return $this->log( 'debug',     $message, $context ); }

	public function log( $level, $message, array $context = array() ) {
		$severity = self::MAP[ (string) $level ] ?? 'info';
		$message  = $this->interpolate( (string) $message, $context );

		return APWPM_Logger::log( array(
			'action_type'  => sanitize_key( $context['_action'] ?? ( 'psr3_' . $level ) ),
			'object_type'  => sanitize_key( $context['_object_type'] ?? 'log' ),
			'object_id'    => isset( $context['_object_id'] ) ? (int) $context['_object_id'] : 0,
			'object_title' => isset( $context['_object_title'] ) ? (string) $context['_object_title'] : '',
			'description'  => $message,
			'severity'     => $severity,
			'context'      => $context,
		) );
	}

	protected function interpolate( $message, array $context = array() ) {
		$replace = array();
		foreach ( $context as $k => $v ) {
			if ( is_scalar( $v ) || ( is_object( $v ) && method_exists( $v, '__toString' ) ) ) {
				$replace[ '{' . $k . '}' ] = (string) $v;
			}
		}
		return strtr( $message, $replace );
	}

	public static function get_logger() {
		return new self();
	}
}