/*
MIT License

Copyright (c) 2023 Jonas Kaninda

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/

package utils

import (
	"fmt"
	"log"
	"os"
	"runtime"
	"strings"
)

// Info returns info log
func Info(msg string, args ...interface{}) {
	log.SetOutput(getStd("/dev/stdout"))
	logWithCaller("INFO", msg, args...)

}

// Warn returns warning log
func Warn(msg string, args ...interface{}) {
	log.SetOutput(getStd("/dev/stdout"))
	logWithCaller("WARN", msg, args...)

}

// Error logs error messages
func Error(msg string, args ...interface{}) {
	log.SetOutput(getStd("/dev/stderr"))
	logWithCaller("ERROR", msg, args...)
}

func Fatal(msg string, args ...interface{}) {
	log.SetOutput(os.Stdout)
	// Format message if there are additional arguments
	formattedMessage := msg
	if len(args) > 0 {
		formattedMessage = fmt.Sprintf(msg, args...)
	}
	logWithCaller("ERROR", msg, args...)
	NotifyError(formattedMessage)
	os.Exit(1)
}

// Helper function to format and log messages with file and line number
func logWithCaller(level, msg string, args ...interface{}) {
	// Format message if there are additional arguments
	formattedMessage := msg
	if len(args) > 0 {
		formattedMessage = fmt.Sprintf(msg, args...)
	}

	// Get the caller's file and line number (skip 2 frames)
	_, file, line, ok := runtime.Caller(2)
	if !ok {
		file = "unknown"
		line = 0
	}
	// Log message with caller information if GOMA_LOG_LEVEL is trace
	if strings.ToLower(level) != "off" {
		if strings.ToLower(level) == traceLog {
			log.Printf("%s: %s (File: %s, Line: %d)\n", level, formattedMessage, file, line)
		} else {
			log.Printf("%s: %s\n", level, formattedMessage)
		}
	}
}

func getStd(out string) *os.File {
	switch out {
	case "/dev/stdout":
		return os.Stdout
	case "/dev/stderr":
		return os.Stderr
	case "/dev/stdin":
		return os.Stdin
	default:
		return os.Stdout

	}
}