#-*- coding:utf-8 -*-
# Copyright 2017 Xiaomi, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


from flask import request, g, abort, render_template, redirect
from flask.ext.babel import refresh
import requests
import json
import string
import random
from rrd import app
from rrd import config
from rrd.model.user import User
from rrd.view import utils as view_utils

from rrd.utils.logger import logging
log = logging.getLogger(__file__)

def id_generator(size=16, chars=string.ascii_uppercase + string.digits):
   return ''.join(random.choice(chars) for _ in range(size)) 

@app.route("/auth/login", methods=["GET", "POST"])
def auth_login():
    if request.method == "GET":
        if g.user:
            return redirect("/")

        return render_template("auth/login.html", **locals())

    if request.method == "POST":
        ret = { "msg": "", }

        name = request.form.get("name")
        password = request.form.get("password")
        ldap = request.form.get("ldap") or "0"

        if not name or not password:
            ret["msg"] = "no name or password"
            return json.dumps(ret)

        if ldap == "1":
            try:
                ldap_info = view_utils.ldap_login_user(name, password)
                password = id_generator()
                user_info = {
                    "name": name,
                    "password": password,
                    "cnname": ldap_info['cnname'],
                    "email": ldap_info['email'],
                    "phone": ldap_info['phone'],
                }
                Apitoken = view_utils.get_Apitoken(config.API_USER, config.API_PASS)

                ut = view_utils.admin_login_user(name, Apitoken)
                if not ut:
                    view_utils.create_user(user_info)
                    ut = view_utils.admin_login_user(name, Apitoken)
                    #if user not exist, create user , signup must be enabled
                ret["data"] = {
                        "name": ut.name,
                        "sig": ut.sig,
                }
                return json.dumps(ret)
					
            except Exception as e:
                ret["msg"] = str(e)
                return json.dumps(ret)

        try:
            ut = view_utils.login_user(name, password)
            if not ut:
                ret["msg"] = "no such user"
                return json.dumps(ret)

            ret["data"] = {
                    "name": ut.name,
                    "sig": ut.sig,
            }
            return json.dumps(ret)
        except Exception as e:
            ret["msg"] = str(e)
            return json.dumps(ret)

@app.route("/auth/logout", methods=["GET",])
def auth_logout():
    if request.method == "GET":
        view_utils.logout_user(g.user_token)
        return redirect("/auth/login")

@app.route("/auth/register", methods=["GET", "POST"])
def auth_register():
    if request.method == "GET":
        if g.user:
            return redirect("/auth/login")
        return render_template("auth/register.html", **locals())

    if request.method == "POST":
        ret = {"msg":""}

        name = request.form.get("name", "")
        cnname = request.form.get("cnname", "")
        email = request.form.get("email", "")
        password = request.form.get("password", "")
        repeat_password = request.form.get("repeat_password", "")

        if not name or not password or not email or not cnname:
            ret["msg"] = "not all form item entered"
            return json.dumps(ret)

        if password != repeat_password:
            ret["msg"] = "repeat password not equal"
            return json.dumps(ret)

        h = {"Content-type":"application/json"}
        d = {
            "name": name,
            "cnname": cnname,
            "email": email,
            "password": password,
        }

        r = requests.post("%s/user/create" %(config.API_ADDR,), \
                data=json.dumps(d), headers=h)
        log.debug("%s:%s" %(r.status_code, r.text))

        if r.status_code != 200:
            ret['msg'] = r.text

        return json.dumps(ret)