from flask import Flask
from flask_restful import Api, Resource, reqparse

app = Flask(__name__)
api = Api(app)

import pymongo
import pprint
from bson.objectid import ObjectId

uri = "mongodb://dbadmin:654321@185.22.60.14/?authSource=blogerCounter&authMechanism=SCRAM-SHA-1"
conn = pymongo.MongoClient(uri)
db = conn.blogerCounter
check = db.checks

import datetime
import numpy as np
from datetime import timedelta

class bd_three(Resource):
    def bdd():
        p = 0
        p_o = 0
        ans = 0
        ans_o = 0
        numb_of_days = 7
        now = datetime.datetime.now()

        #ищем последнюю запись
        for ch in check.find().sort('checkTimestamp',-1).limit(1):
            now = ch["checkTimestamp"]
            p = ch["views"]

        #ищем запись час назад
        for ch in check.find({ "checkTimestamp":  {'$gt': (now - timedelta(hours = 1))}}).limit(1):
            p_0 = ch["views"]

        #анализируем за последнюю неделю
        for i in range(1, numb_of_days + 1):
            for pred_ch in check.find({ "checkTimestamp":  {'$gt': (now - timedelta(days = i))}}).limit(1):
                ans = ans + pred_ch["views"]
            for pred_ch_o in check.find({ "checkTimestamp":  {'$gt': (now - timedelta(hours = 1) -timedelta(days = i))}}).limit(1):
                ans_o = ans_o + pred_ch_o["views"]

        print ("изменение за последний час с изменением за аналогичный час за последнюю неделю")
        if p - p_o == 0:
            print ("Изменения не было")
        else:
            print (abs((((ans - ans_o) / numb_of_days) - (p - p_o)) / (p - p_o)))

        ans = 0
        ans_o = 0
        numb_of_weeks = 4

        #анализируем за последний месяц

        for i in range(1, numb_of_weeks + 1):
            for pred_ch in check.find({ "checkTimestamp":  {'$gt': (now - timedelta(days = 7 * i))}}).limit(1):
                ans = ans + pred_ch["views"]
            for pred_ch_o in check.find({ "checkTimestamp":  {'$gt': (now - timedelta(hours = 1) -timedelta(days = 7 * i))}}).limit(1):
                ans_o = ans_o + pred_ch_o["views"]

        print("изменение за последний час с изменением в аналогичный час за аналогичные дни недели за последний месяц")
        if p - p_o == 0:
            print("Изменения не было")
        else:
            print(abs((((ans - ans_o) / numb_of_days) - (p - p_o)) / (p - p_o)))
        return

api.add_resource(bd_three, "/bd_change")

if __name__ == '__main__':
        app.run(debug=True, host = '0.0.0.0')