package internal

import (
	"fmt"
	"os"
	"path/filepath"
	"runtime"
	"sync"
	"time"
)

var (
	logFile *os.File
	mu      sync.Mutex
)

func InitLog() {
	var err error
	logFileName := os.Getenv("CCTV_LOG_FILE")
	if logFileName == "" {
		logFileName = "app.log" // Default log file name if the environment variable is not set
	}

	var logFilePath string
	if runtime.GOOS == "windows" {
		logFilePath = filepath.Join("C:\\ProgramData\\CCTV", logFileName)
	} else if runtime.GOOS == "darwin" {
		logFilePath = filepath.Join("/Library/Logs", logFileName)
	} else {

		logFilePath = filepath.Join("/var/log", logFileName)
	}

	// Ensure directory exists
	err = os.MkdirAll(filepath.Dir(logFilePath), 0755)
	if err != nil {
		fmt.Println("Error creating log directory:", err)
		os.Exit(1)
	}

	logFile, err = os.OpenFile(logFilePath, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
	if err != nil {
		fmt.Println("Error opening log file:", err)
		os.Exit(1)
	}
}

func LogFailedAttempt(ip string) {
	logEntry := fmt.Sprintf("[%s] Failed auth attempt from IP: %s\n", time.Now().Format(time.RFC3339), ip)
	logFile.WriteString(logEntry)
	logFile.Sync()

	fmt.Print(logEntry)
}

func LogBan(ip string) {
	logEntry := fmt.Sprintf("[%s] Banned IP: %s\n", time.Now().Format(time.RFC3339), ip)
	logFile.WriteString(logEntry)
	logFile.Sync()

	fmt.Print(logEntry)
}

func LogSuccessUpload(ip string, fileName string) {
	logEntry := fmt.Sprintf("[%s] Successfully uploaded file %s from IP: %s\n", time.Now().Format(time.RFC3339), fileName, ip)
	logFile.WriteString(logEntry)
	logFile.Sync()

	fmt.Print(logEntry)
}

func LogFileServerRequest(ip string, fileName string) {
	logEntry := fmt.Sprintf("[%s] File server request for %s from IP: %s\n", time.Now().Format(time.RFC3339), fileName, ip)
	logFile.WriteString(logEntry)
	logFile.Sync()

	fmt.Print(logEntry)
}

func CloseLog() {
	logFile.Close()
}