import os
import sys
import shutil
from find_func_def import find_type
from find_func_def import node
from find_func_def import lex
from find_func_def import node_file
from find_func_def import find_sentence
from find_func_def import dist_node_type


# 找到函数声明
def find_func_decl_in_file(n:node,deep:int):
  ret=[]
  if(n.type=='func_decl'):
    print(f"{n.type} {n.name}")
    ret.append(n.name)
    return ret
  # n.complite()
  if (not n.child is None) and len(n.child)>0:
    for item in n.child:
      ret+=find_func_decl_in_file(item,deep+1)
  return ret

# 找到文件中的所有函数声明
def find_func_decl(file_name:str):
  with open(file_name,mode='rb') as f:
    read_d=f.read()
    if(read_d[:3]==bytes([0xef,0xbb,0xbf])):
      read_d=read_d[3:]
    token_list=lex(read_d,file_name)
  file=node_file(name=file_name,token_list=token_list)
  while len(token_list)>0:
    node_d=None
    try:
      sentence=find_sentence(token_list)
      node_d=dist_node_type(sentence)
    except Exception as e:
      print(f"in {file_name}")
      print(f"\t {e}")
      break
    if not node_d is None:
      file.child.append(node_d)
    token_list=token_list[len(sentence):]
  # print_node(file,0)
  return find_func_decl_in_file(file,0)





# 找到函数定义
def find_func_decl(file:str):
  list_func=[]
  with open(file,encoding="utf-8") as f:
    list_str=f.readlines()
    text=""
    ignore=False
    go_on=False
    for i in list_str:
      line=i.strip()
      if(len(line)==0):
        continue
      if(line.find("#define")>=0):
        ignore=True
        continue
      if(line[-1]=='\\'):
        if(ignore):
          continue
        text+=line[:-1]
      else:
        if(ignore):
          ignore=False
          continue
      if(line.find('(')>0):
        text=line
        go_on=False
        if(line.find(');')<0):
          go_on=True
          continue
      if go_on:
        text+=line
        if(line.find(');')>0):
          go_on=False
      if not go_on:
        par_start=text.find('(')
        par_end=text.find(');')
        if(text.count('(')!=1 or text.count(')')!=1):
          continue
        if(par_start>0 and par_end>0 and par_start<par_end):
          list_func.append(text)
          text=''
  return list_func

# 截取参数列表中的变量名
def split_par_name(par_str:str):
    ret_str=""
    if(par_str.count('*')>0):
        ret_str=par_str.split("*")[1].strip()
    else:
        # print(par_str)
        ret_str=par_str.split(" ")[1]
    return ret_str

# 生成空函数的实现
def def_empty_fun(line:str):
  # 删除多余空格
  line=' '.join(line.split())
  # print(line)
  list_str=line.split('(')
  ret_type=list_str[0].split(' ')[0]
  fun_name=list_str[0].split(' ')[-1]
  param_str=list_str[1].split(')')[0]
  params=[]
  # 有","则至少有两个参数否则可能有一个参数,可能没有
  if(param_str.count(',')>0):
    params=param_str.split(',')
    for i in range(len(params)):
      params[i]=params[i].strip()
  else:
    t_str=param_str.strip()
    if(len(t_str)>0)and(t_str!="void"):
      params.append(t_str)
  # print(fun_name,params)
  params_num=len(params)
  fun_str=""
  fun_str+=f"{list_str[0]}("
  for i in range(params_num):
    fun_str+=params[i]
    if(i<len(params)-1):
      fun_str+=", "
  fun_str+=")\n{\n"
  # if(params_num-1>0):
  #     fun_str+="  uint32_t param[{d}];\n".format(d=params_num-1)
  for i in range(params_num):
    fun_str+="    (void){d2};\n".format(d2=split_par_name(params[i]))
  if(ret_type!="void"):
    fun_str+="    return 0;\n"
  fun_str+="}\n\n"
  # print(fun_str)
  return fun_str



#
def ergodic_signal_fun(path):
  fun_str=""
  list_file=find_type(path,".h")
  for i in list_file:
    list_signal=find_func_decl(i)
    for j in list_signal:
      fun_str+=def_empty_fun(j)
  return list_file,fun_str



def create_empty_fun(file:str):
  fun_str=''
  func_list=find_func_decl(file)
  for j in func_list:
    fun_str+=def_empty_fun(j)
  return fun_str




if __name__ == "__main__":
  file_list=sys.argv[1:]
  for item in file_list:
    # find_func_decl(item)
    text=create_empty_fun(item)
    print(text)