package logger

import (
	"log/slog"
	"os"
	"path/filepath"
	"strings"

	"github.com/natefinch/lumberjack"
	"joylink.club/bj-rtsts-server/config"
)

const DefaultLogPath = "/var/logs/bjrtsts_server"

func InitSlog() {
	logging := config.Config.Logging
	slog.Debug("读取日志配置内容", "logging", logging)
	// 判断日志路径是否存在，如果不存在就创建
	if strings.Trim(logging.Path, " ") == "" {
		logging.Path = DefaultLogPath
	}
	// 日志文件 与 日志切割 配置
	if strings.Trim(logging.FileName, " ") == "" {
		logging.FileName = "server.log"
	}

	// 默认Info
	level := slog.LevelInfo
	if strings.ToUpper(logging.Level) == "DEBUG" {
		level = slog.LevelDebug
	} else if strings.ToUpper(logging.Level) == "WARN" {
		level = slog.LevelWarn
	} else if strings.ToUpper(logging.Level) == "ERROR" {
		level = slog.LevelError
	}

	if logging.Stdout {
		// 日志输出到控制台
		slog.SetDefault(slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
			Level:     level,
			AddSource: false,
		})))
	} else {
		// 日志输出到日志文件(自动滚动)
		lumberJackLogger := &lumberjack.Logger{
			Filename:   filepath.Join(logging.Path, logging.FileName), // 日志文件路径
			MaxSize:    logging.FileMaxSize,                           // 单个日志文件最大多少 mb
			MaxBackups: logging.FileMaxBackups,                        // 日志备份数量
			MaxAge:     logging.MaxAge,                                // 日志最长保留时间
			LocalTime:  true,                                          // 日志备份使用本地时间
			Compress:   logging.Compress,                              // 是否压缩日志
		}
		slog.SetDefault(slog.New(slog.NewJSONHandler(lumberJackLogger, &slog.HandlerOptions{
			Level:     level,
			AddSource: false,
		})))
	}
}

// 初始化日志
func InitLogger() error {
	InitSlog()
	return nil
}