package logger

import (
	"errors"
	"fmt"
	"os"
	"os/exec"
	"path"
	"path/filepath"
	"runtime"
	"strings"
	"time"
)

// 获取今天的日期
func getToday() string {
	now := time.Now()
	return now.Format("2006-01-02")
}

// 获取当前时间
func getCurrentTime() string {
	now := time.Now()
	hour := now.Hour()
	minute := now.Minute()
	second := now.Second()
	return fmt.Sprintf("%02d:%02d:%02d", hour, minute, second)
}

// 获取调用代码的位置信息
func getCaller(skip int) string {
	pc, file, line, ok := runtime.Caller(skip)
	if !ok {
		return ""
	}
	fileName := path.Base(file)
	funcName := runtime.FuncForPC(pc).Name()
	return fmt.Sprintf("file:%v;function:%v;line:%d", fileName, funcName, line)
}

// 获取程序进程id
func getPid() int {
	return os.Getpid()
}

//windows环境下获取绝对路径
func GetCurrentPath(dir string) (string, error) {
	file, err := exec.LookPath(os.Args[0])
	if err != nil {
		return "", err
	}
	path, err := filepath.Abs(file)
	if err != nil {
		return "", err
	}
	i := strings.LastIndex(path, "/")
	if i < 0 {
		i = strings.LastIndex(path, "\\")
	}
	if i < 0 {
		return "", errors.New(`error: Can't find "/" or "\".`)
	}
	pathdir := string(path[0 : i+1])
	if len(dir) > 0 {
		dir = strings.Replace(dir, "/", "\\", -1)
		return filepath.Join(pathdir, dir), nil
	}
	return string(path[0 : i+1]), nil
}