# -*- coding:utf8 -*-
import os
import sys
import codecs 
from urllib.parse import quote
import json

import random
import time
import datetime
from openpyxl import Workbook
from tempfile import mktemp

from appPublic.jsonConfig import getConfig
from appPublic.Singleton import GlobalEnv
from appPublic.argsConvert import ArgsConvert
from appPublic.timeUtils import str2Date,str2Datetime,curDatetime,getCurrentTimeStamp,curDateString, curTimeString
from appPublic.folderUtils import folderInfo
from appPublic.uniqueID import setNode,getID
from appPublic.unicoding import unicoding,uDict,uObject
from appPublic.Singleton import SingletonDecorator
from appPublic.rc4 import password

from sqlor.dbpools import DBPools,runSQL,runSQLPaging
from sqlor.crud import CRUD


from .xlsxData import XLSXData
from .uriop import URIOp
from .error import Success, Error, NeedLogin, NoPermission
from .filetest import current_fileno

from .serverenv import ServerEnv

def data2xlsx(rows,headers=None):
	wb = Workbook()
	ws = wb.active

	i = 1
	if headers is not None:
		for j in range(len(headers)):
			v = headers[j].title if headers[j].get('title',False) else headers[j].name
			ws.cell(column=j+1,row=i,value=v)
		i += 1
	for r in rows:
		for j in range(len(r)):
			v = r[headers[j].name]
			ws.cell(column=j+1,row=i,value=v)
		i += 1
	name = mktemp(suffix='.xlsx')
	wb.save(filename = name)
	wb.close()
	return name
	
class FileOutZone(Exception):
	def __init__(self,fp,*args,**kwargs):
		super(FileOutZone,self).__init__(*args,**kwargs)
		self.openfilename = fp
	
	def __str__(self):
		return self.openfilename + ': not allowed to open'
		
def get_config_value(kstr):
	keys = kstr.split('.')
	config = getConfig()
	if config is None:
		raise Exception('getConfig() error')
	for k in keys:
		config = config.get(k)
		if not config:
			return None
	return config

def get_definition(k):
	k = f'definitions.{k}'
	return get_config_value(k)

def openfile(url,m):
	fp = abspath(url)
	if fp is None:
		print(f'openfile({url},{m}),url is not match a file')
		raise Exception('url can not mathc a file')
	config = getConfig()
	paths = [ os.path.abspath(p) for p in config.website.paths ]
	fs = config.get('allow_folders',[])
	fs = [ os.path.abspath(i) for i in fs + paths ]
	r = False
	for f in fs:
		if fp.startswith(f):
			r = True
			break
	if not r:
		raise FileOutZone(fp)
	return open(fp,m)
	
def isNone(a):
	return a is None

def abspath(path):
	config = getConfig()
	paths = [ os.path.abspath(p) for p in config.website.paths ]
	for root in paths:
		p = root + path
		if os.path.exists(root+path):
			return p
			
	return None

def appname():
	config = getConfig()
	try:
		return config.license.app
	except:
		return "test app"
	
def configValue(ks):
	config = getConfig()
	try:
		a = eval('config' + ks)
		return a
	except:
		return None

def visualcoding():
	return configValue('.website.visualcoding');

def file_download(request,path,name,coding='utf8'):
	f = openfile(path,'rb')
	b = f.read()
	f.close()
	fname = quote(name).encode(coding)
	hah = b"attachment; filename=" + fname
	# print('file head=',hah.decode(coding))
	request.setHeader(b'Content-Disposition',hah)
	request.setHeader(b'Expires',0)
	request.setHeader(b'Cache-Control',b'must-revalidate, post-check=0, pre-check=0')
	request.setHeader(b'Content-Transfer-Encoding',b'binary')
	request.setHeader(b'Pragma',b'public')
	request.setHeader(b'Content-Length',len(b))
	request.write(b)
	request.finish()
	
def initEnv():
	pool = DBPools()
	g = ServerEnv()
	g.configValue = configValue
	g.visualcoding = visualcoding
	g.uriop = URIOp
	g.isNone = isNone
	g.len = len
	g.print = print
	g.json = json
	g.Exception = Exception
	g.int = int
	g.str = str
	g.float = float
	g.complex = complex
	g.type = type
	g.ArgsConvert = ArgsConvert
	g.time = time
	g.curDateString = curDateString
	g.curTimeString = curTimeString
	g.datetime = datetime
	g.random = random
	g.str2date = str2Date
	g.str2datetime = str2Datetime
	g.curDatetime = curDatetime
	g.uObject = uObject
	g.uuid = getID
	g.runSQL = runSQL
	g.runSQLPaging = runSQLPaging
	g.runSQLIterator = pool.runSQL
	g.runSQLResultFields = pool.runSQLResultFields
	g.getTables = pool.getTables
	g.getTableFields = pool.getTableFields
	g.getTablePrimaryKey = pool.getTablePrimaryKey
	g.getTableForignKeys = pool.getTableForignKeys
	g.folderInfo = folderInfo
	g.abspath = abspath
	g.data2xlsx = data2xlsx
	g.xlsxdata = XLSXData
	g.openfile = openfile
	g.CRUD = CRUD
	g.DBPools = DBPools
	g.Error = Error
	g.Success = Success
	g.NeedLogin = NeedLogin
	g.NoPermission = NoPermission
	g.password_encode = password
	g.current_fileno = current_fileno
	g.get_config_value = get_config_value
	g.get_definition = get_definition

def set_builtins():
	all_f="""abs
aiter
all
anext
any
ascii
bin
bool
breakpoint
bytearray
bytes
callable
chr
classmethod
compile
complex
delattr
dict
dir
divmod
enumerate
eval
exec
filter
float
format
frozenset
getattr
globals
hasattr
hash
help
hex
id
input
int
isinstance
issubclass
iter
len
list
locals
map
max
memoryview
min
next
object
oct
open
ord
pow
print
property
range
repr
reversed
round
set
setattr
slice
sorted
staticmethod
str
sum
super
tuple
type
vars
zip"""
	g = ServerEnv()
	for l in all_f.aplit('\n'):
		if l != '':
			g[l] = l