package utils

import (
	"fmt"
	"strings"
	"time"
	"unsafe"
	"encoding/json"
)

// StrToBytes 快读的string转byte
func StrToBytes(s string) []byte {
	x := (*[2]uintptr)(unsafe.Pointer(&s))
	h := [3]uintptr{x[0], x[1], x[1]}
	return *(*[]byte)(unsafe.Pointer(&h))
}


func PrintStruct(prefix string, data interface{}) {
	bytes, _ := json.Marshal(data)
	fmt.Printf("%s, %s\n", prefix, bytes)
}

func GetMonthFromDate(date string) (int) {
	if date == "" {
		return -1
	}
	array := strings.Split(date, " ")
	if len(array) == 0 {
		return -1
	}
	date = array[0]
	t, err := time.ParseInLocation("2006-01-02", date, time.Local)
	if err != nil {
		return -1
	}
	return int(t.Month())
}