<?php
/**
 * logger.php
 *
 * @version 3.0
 * @author  Joey Kimsey <Joey@thetempusproject.com>
 */
namespace TheTempusProject\Canary\Classes;

class Logger {
    public $file;
    public $logDirectory;
    public $logFilePath;

    public function __construct() {
        $this->setupLogFile();
        $this->file = fopen( $this->logFilePath, 'a' );
        fwrite( $this->file, '===================------++++++++++------===================' . PHP_EOL );
    }

    public function setupLogFile() {
        $this->logDirectory = rtrim( CANARY_DEBUG_DIRECTORY, DIRECTORY_SEPARATOR );
        if ( ! is_dir( $this->logDirectory ) ) {
            mkdir( $this->logDirectory, 0777, true );
        }

        $currentFile = date('m-d-Y') . '.log';
        $this->logFilePath = $this->logDirectory . DIRECTORY_SEPARATOR . $currentFile;

        if ( ! file_exists( $this->logFilePath ) ) {
            touch( $this->logFilePath );
            chmod( $this->logFilePath, 0777 );
        }
    }

    public function __destruct() {
        fwrite( $this->file, '============================================================' . PHP_EOL );
        fclose( $this->file );
    }

    public function addLog( $type = 'log', $log = '' ) {
        switch ( CANARY_DEBUG_TO_FILE_LEVEL ) {
            case CANARY_DEBUG_LEVEL_ERROR:
                $acceptableLoggingLevels = [
                    CANARY_DEBUG_LEVEL_ERROR,
                ];
                if (!  in_array( $type, $acceptableLoggingLevels )) {
                    return;
                }
                break;
            case CANARY_DEBUG_LEVEL_WARN:
                $acceptableLoggingLevels = [
                    CANARY_DEBUG_LEVEL_ERROR,
                    CANARY_DEBUG_LEVEL_WARN,
                ];
                if (!  in_array( $type, $acceptableLoggingLevels )) {
                    return;
                }
                break;
            case CANARY_DEBUG_LEVEL_INFO:
                $acceptableLoggingLevels = [
                    CANARY_DEBUG_LEVEL_ERROR,
                    CANARY_DEBUG_LEVEL_WARN,
                    CANARY_DEBUG_LEVEL_INFO,
                ];
                if (!  in_array( $type, $acceptableLoggingLevels )) {
                    return;
                }
                break;
            case CANARY_DEBUG_LEVEL_LOG:
                $acceptableLoggingLevels = [
                    CANARY_DEBUG_LEVEL_ERROR,
                    CANARY_DEBUG_LEVEL_WARN,
                    CANARY_DEBUG_LEVEL_INFO,
                    CANARY_DEBUG_LEVEL_LOG,
                ];
                if (!  in_array( $type, $acceptableLoggingLevels )) {
                    return;
                }
                break;
            case CANARY_DEBUG_LEVEL_DEBUG:
                $acceptableLoggingLevels = [
                    CANARY_DEBUG_LEVEL_ERROR,
                    CANARY_DEBUG_LEVEL_WARN,
                    CANARY_DEBUG_LEVEL_INFO,
                    CANARY_DEBUG_LEVEL_LOG,
                    CANARY_DEBUG_LEVEL_DEBUG,
                ];
                if (!  in_array( $type, $acceptableLoggingLevels )) {
                    return;
                }
                break;
            default:
                return;
        }
        $formattedMessage = $this->timestamp() . $this->typestamp( $type ) . $log . PHP_EOL;
        fwrite( $this->file, $formattedMessage );
    }

    private function timestamp() {
        $dateString = self::getReadableDate( time() );
        return '['.$dateString.'] - ';
    }

    private function typestamp( $type ) {
        $dateString = self::getReadableDate( time() );
        return '[' . strtoupper( $type ) . '] - ';
    }

    public static function getReadableDate( $timestamp, $with_timezone = false ) {
        if ( $with_timezone ) {
            $date = new \DateTime();
            $date->setTimestamp( $timestamp );
            $timezone = new \DateTimeZone( self::getTimezone() );
            $date->setTimezone( $timezone );
            $formattedDate = $date->format('Y-m-d H:i:s');
            return $formattedDate;
        }
        return date( 'Y-m-d H:i:s', $timestamp );
    }
}