<?php

namespace AdScale\Helpers;

defined( 'ABSPATH' ) || exit; // Exit if accessed directly


class Logger {
	/**
	 * Write a message to the log file.
	 *
	 * @param string $message
	 * @param string $log_file_destination
	 * @return false|int
	 */
	protected static function writeToFile( $message, $log_file_destination ) {
		return file_put_contents( $log_file_destination, $message, FILE_APPEND | LOCK_EX );
	}


	protected static $config = [];


	public static function _log(
		$var,
		$desc = ' >> ',
		$log_file_destination = null,
		$clear_log = false,
		$no_print_r = false
	) {

		if ( ! self::isLoggerEnabled() ) {
			return;
		}

		if ( ! $log_file_destination ) {
			return;
		}

		$dirname = dirname( $log_file_destination );

		// try to make directory if not exists
		if ( ! self::resolveDir( $dirname ) ) {
			return;
		}

		self::resolveDenyHtaccess( $dirname );

		if ( $clear_log ) {
			file_put_contents( $log_file_destination, '' );
		}

		if ( self::isLoggerTimeInMS() ) {
			$time_mark = '[' . self::getMicroTime() . '] ';
		} else {
			$time_mark = '[' . gmdate( 'Y-m-d H:i:s' ) . '] ';
		}

		if ( $no_print_r ) {
			if ( is_numeric( $var ) || is_string( $var ) || is_bool( $var ) ) {
				self::writeToFile( $time_mark . $desc . ' ' . $var . PHP_EOL, $log_file_destination );
			} elseif ( is_object( $var ) ) {
				self::writeToFile( $time_mark . $desc . ' Object:' . get_class( $var ) . PHP_EOL, $log_file_destination );
			} elseif ( is_array( $var ) ) {
				self::writeToFile( $time_mark . $desc . ' Array' . PHP_EOL, $log_file_destination );
			} elseif ( is_resource( $var ) ) {
				self::writeToFile( $time_mark . $desc . ' Resource' . PHP_EOL, $log_file_destination );
			} else {
				self::writeToFile( $time_mark . $desc . ' Something unprintable' . PHP_EOL, $log_file_destination );
			}
		} else {
			self::writeToFile( $time_mark . $desc . ' ' . print_r( $var, true ) . PHP_EOL, $log_file_destination );
		}
		
	}
	
	
	public static function log( $var, $desc = ' ', $name = 'default', $separate = false, $no_print_r = false ) {
		
		if ( ! self::isLoggerEnabled() ) {
			return;
		}
		
		$date = $separate ? gmdate( 'Y-m-d_H' ) : gmdate( 'Y-m-d' );
		$dir  = self::getDir();
		
		$log_file_destination = trailingslashit( $dir ) . $name . '_' . $date . '.log';
		self::_log( $var, $desc, $log_file_destination, false, $no_print_r );
		
	}
	
	
	// ==============================================================================
	
	
	public static function setConfig( array $config ) {
		self::$config = $config;
	}
	
	
	public static function getConfig() {
		return self::$config;
	}
	
	
	public static function isLoggerEnabled() {
		$enabled_by_config   = isset( self::$config['enabled'] ) && self::$config['enabled'];
		$enabled_by_constant = defined( 'ADSCALE_LOGGER_ENABLED' ) && ADSCALE_LOGGER_ENABLED;
		
		return $enabled_by_constant || $enabled_by_config;
	}
	
	
	public static function isLoggerTimeInMS() {
		return isset( self::$config['time_in_ms'] ) ? self::$config['time_in_ms'] : true;
	}
	
	
	public static function getDir() {
		return isset( self::$config['dir'] ) ? self::$config['dir'] : get_stylesheet_directory();
	}
	
	
	public static function isNeedDenyHtaccess() {
		return isset( self::$config['need_deny_htaccess'] ) ? self::$config['need_deny_htaccess'] : false;
	}
	
	
	public static function getMicroTime() {
		$t     = microtime( true );
		$micro = sprintf( '%06d', ( $t - floor( $t ) ) * 1000000 );
		$d     = null;
		try {
			$d = new \DateTime( gmdate( 'Y-m-d H:i:s.' . $micro, $t ) );
		} catch ( \Exception $e ) {
			return '';
		}
		
		return $d ? $d->format( 'Y-m-d H:i:s.u' ) : ''; //note "u" is microseconds (1 seconds = 1000000 µs).
	}
	
	
	public static function resolveDir( $dirname ) {
	    global $wp_filesystem;
	    if ( empty( $wp_filesystem ) ) {
	        require_once ABSPATH . '/wp-admin/includes/file.php';
	        WP_Filesystem();
	    }

	    if ( $wp_filesystem->is_dir( $dirname ) ) {
	        return true;
	    }

	    return (bool) $wp_filesystem->mkdir( $dirname, FS_CHMOD_DIR );
	}


	public static function resolveDenyHtaccess( $dirname ) {
	    if ( ! self::isNeedDenyHtaccess() ) {
	        return null;
	    }

	    global $wp_filesystem;
	    if ( empty( $wp_filesystem ) ) {
	        require_once ABSPATH . '/wp-admin/includes/file.php';
	        WP_Filesystem();
	    }

	    if ( ! $wp_filesystem->is_dir( $dirname ) ) {
	        return null;
	    }

	    // Define `.htaccess` path
	    $htaccess_path = trailingslashit( $dirname ) . '.htaccess';

	    // Check if the `.htaccess` file already exists
	    if ( $wp_filesystem->exists( $htaccess_path ) ) {
	        return null;
	    }

	    // Define content without using HEREDOC
	    $content  = "order deny,allow" . PHP_EOL;
	    $content .= "deny from all" . PHP_EOL;

	    // Write content to file
	    return (bool) $wp_filesystem->put_contents( $htaccess_path, $content, FS_CHMOD_FILE );
	}
}