# coding:utf-8
# Build by LandGrey 2016-05-27

import os
import sys

#批量修改路徑與文件名
def Modifyprefix(Path,oldcontent,newcontent):
  all_file_list = os.listdir(Path)  #列出指定目錄下的所有文件
  for file_name in all_file_list:
    currentdir =os.path.join(Path, file_name) #連接指定的路徑和文件名or文件夾名字
    if os.path.isdir(currentdir):  #如果當前路徑是文件夾，則跳過
      Modifyprefix(currentdir,oldcontent,newcontent)
    fname = os.path.splitext(file_name)[0] #分解出當前的文件路徑名字
    ftype = os.path.splitext(file_name)[1] #分解出當前的文件擴展名
    if oldcontent in fname:
      fdcount[0]+=1
      replname =fname.replace(oldcontent,newcontent) #將原文件名中的'oldcontent'字符串內容全替換為'newcontent'字符串內容
      newname = os.path.join(Path,replname+ftype)  #文件路徑與新的文件名字+原來的擴展名
      os.rename(currentdir,newname) #重命名

#批量修改文件擴展名(后綴)
def Modifypostfix(Path,oldftype,newftype):
  all_file_list = os.listdir(Path)     #列出指定目錄下的所有文件
  for file_name in all_file_list:
    currentdir =os.path.join(Path,file_name)
    if os.path.isdir(currentdir):          #迭代
      Modifypostfix(currentdir,oldftype,newftype)
    fname = os.path.splitext(file_name)[0]
    ftype = os.path.splitext(file_name)[1]
    if oldftype in ftype[1:]: #找到需要修改的擴展名
      typecount[0]+=1
      ftype=ftype.replace(oldftype,newftype)
      newname = os.path.join(Path,fname+ftype) #文件路徑與原來的文件名字+新的擴展名
      os.rename(currentdir,newname)        #重命名

def Useage():
  print unicode("\n[+] 用法: python Modifer.py [指定目錄] [選項] [參數1] [參數2]","utf-8")
  print unicode("[+] 選項 [-fd] :批量修改目錄和文件名        [參數1]: 需要替換的字符   [參數2]:替換字符串","utf-8")
  print unicode("[+] 選項 [-fp] :批量修改文件后綴名         [參數1]: 原后綴名      [參數2]:需要替換的后綴名","utf-8")
  print unicode("[+] 選項 [-all] :批量修改目錄、文件名和文件后綴名  [參數1]: 需要替換的字符部分 [參數2]:替換字符串","utf-8")
  print unicode(r"[+] 用法示例:python Modifer.py D:\files -fp txt data","utf-8")

if __name__=="__main__":
  typecount=[0]
  fdcount=[0]
  if len(sys.argv)==2 and "-h" in sys.argv[1]:
    Useage()
    sys.exit()
  elif len(sys.argv) !=5:
    print unicode("\n[+] 參數錯誤 !\n","utf-8")
    print unicode("[+] 用 -h 或--help 參數查看Modifer.py用法","utf-8")
    sys.exit()
  elif os.path.isdir(sys.argv[1]) is False:
    print unicode("\n[+] 指定目錄錯誤 ! 請檢查輸入路徑是否正確,路徑中不能有空格\n","utf-8")
    print unicode("[+] 用 -h 或--help 參數查看Modifer.py用法","utf-8")
    sys.exit()
  elif sys.argv[2]=="-fd":
    Modifyprefix(sys.argv[1],sys.argv[3],sys.argv[4])
    print unicode("\n[+] Modifer.py  Build by LandGrey","utf-8")
    print unicode("[+] 完成 !","utf-8")
    print unicode("[+] 共修改%s個目錄和文件名"%fdcount[0],"utf-8")
  elif sys.argv[2]=="-fp":
    Modifypostfix(sys.argv[1],sys.argv[3],sys.argv[4])
    print unicode("\n[+] Modifer.py  Build by LandGrey","utf-8")
    print unicode("[+] 完成 !","utf-8")
    print unicode("[+] 共修改%s個后綴名"%typecount[0],"utf-8")
  elif sys.argv[2]=="-all":
    Modifypostfix(sys.argv[1],sys.argv[3],sys.argv[4])
    Modifyprefix(sys.argv[1],sys.argv[3],sys.argv[4])
    print unicode("\n[+] Modifer.py  Build by LandGrey","utf-8")
    print unicode("[+] 完成 !","utf-8")
    print unicode("[+] 共修改%s個目錄名、文件名和后綴名"%(typecount[0]+fdcount[0]),"utf-8")
  else:
    print unicode("\n[+] 選項錯誤 !\n","utf-8")
    print unicode("[+] 用 -h 或--help 參數查看Modifer.py用法","utf-8")
    sys.exit()