from django.shortcuts import render
from rest_framework.response import Response
from rest_framework.decorators import api_view
import http.client
import json
import requests
from bs4 import BeautifulSoup
# Create your views here.

ue_sid_global = ""
ue_mid_global = ""

def sessionIdGenrator():
    conn = http.client.HTTPSConnection("www.amazon.in")
    payload = ''
    headers = {}
    conn.request("GET", "/", payload, headers)
    res = conn.getresponse()
    data = res.read()
    response = data.decode("utf-8")
    ue_sid = response.split("ue_sid =")[1].split(',')[0].split("'")[1]
    ue_mid = response.split("ue_mid =")[1].split(',')[0].split("'")[1]
    return ue_sid, ue_mid


def searchAPI(ue_sid, ue_mid, query):
    conn = http.client.HTTPSConnection("completion.amazon.in")
    payload = ''
    headers = {}
    conn.request("GET", "/api/2017/suggestions?prefix="+query.replace(" ", "+") +
                 "&alias=aps&session-id="+ue_sid+"&mid="+ue_mid, payload, headers)
    res = conn.getresponse()
    data = res.read()
    response = data.decode("utf-8")
    return json.loads(response)


def getAllProduct(query, page):
    conn = http.client.HTTPSConnection("www.amazon.in")
    payload = ''
    headers = {}
    conn.request("POST", "/s/query?k="+query +
                 "&page="+str(page), payload, headers)
    res = conn.getresponse()
    data = res.read()
    response = data.decode("utf-8")
    tempData = response.split("&&&")[3:-1]
    data = []
    for i in tempData:
        try:
            tempProduct = {}
            tempHtml = json.loads(i)[2]["html"]
            soup = BeautifulSoup(tempHtml, features="html5lib")
            try:
                stars = soup.find_all("span", {"class", "a-icon-alt"})[0].text
                tempProduct["stars"] = stars
            except:
                pass
            try:
                imgs = soup.find_all("img", {"class", "s-image"})[0]['srcset']
                tempProduct["imgs"] = imgs
            except:
                pass
            try:
                title = soup.find_all(
                    "img", {"class", "s-image"})[0]['alt'].replace("Sponsored Ad - ", "")
                tempProduct["title"] = title
            except:
                pass
            try:
                link = soup.find_all("a")[0]["href"]
                tempProduct["link"] = link
            except:
                pass
            try:
                symbol = soup.find_all(
                    "span", {"class", "a-price-symbol"})[0].text
                tempProduct["symbol"] = symbol
            except:
                pass
            try:
                price = soup.find_all(
                    "span", {"class", "a-price-whole"})[0].text
                tempProduct["price"] = price
            except:
                pass
            try:
                fullPrice = soup.find_all(
                    "span", {"class", "a-offscreen"})[1].text
                tempProduct["fullPrice"] = fullPrice
            except:
                pass
            try:
                offer = soup.find_all(
                    "span", {"class", "a-truncate-full"})[0].text
                tempProduct["offer"] = offer
            except:
                pass
            try:
                dataAsin = json.loads(i)[2]["asin"]
                tempProduct["asin"] = dataAsin
            except:
                pass
            if(tempProduct != {} and "title" in tempProduct.keys() and "asin" in tempProduct.keys()):
                data.append(tempProduct)
        except:
            pass
    return data


@api_view(['GET'])
def getProductsList(request):
    query = (request.GET.get('query')).replace(" ", "+")
    try:
        page = (request.GET.get('page'))
    except:
        page = 1
    data = getAllProduct(query, page)
    return Response({"data": data})


@api_view(['GET'])
def getProductDetail(request):
    productId = request.GET.get('id')
    conn = http.client.HTTPSConnection("www.amazon.in")
    payload = ''
    headers = {}
    conn.request("GET", "/dp/"+productId+"/", payload, headers)
    res = conn.getresponse()
    data = res.read()
    response = data.decode("utf-8")
    data = {}
    soup = BeautifulSoup(response, features="html5lib")
    #title = response.split('id="productTitle"')[1].split(">")[1].split("</span")[0].strip()
    title = soup.find_all(
        "span", {"class", "a-size-large product-title-word-break"})[0].text.strip()
    data['title'] = title
    symbol = soup.find_all("span", {"class", "a-price-symbol"})[0].text
    data["symbol"] = symbol
    savingsPercentage = soup.find_all(
        "span", {"class", "savingsPercentage"})[0].text
    data["savingPercentage"] = savingsPercentage
    imgs = soup.find_all(
        "img", {"class", "a-dynamic-image"})
    imgArr = []
    for i in imgs:
        imgArr.append("https://m.media-amazon.com/images/I/" +
                      i["src"].split("/I/")[1].split(".")[0]+".jpg")
    data["images"] = imgArr
    scripts = soup.find_all("script")
    tempData = {}
    for i in scripts:
        try:
            temp = str(i).split("<script")[1].split(
                ">")[1].split("</script")[0]
            for key, item in json.loads(temp).items():
                if item != None or item != "nulll" or item != True or item != False:
                    tempData[key] = item
        except:
            pass
    data["currencyCode"] = tempData["currencyCode"]
    data["productPrice"] = tempData["productPrice"]
    data["brand"] = tempData["brand"]
    data["category"] = tempData["buyBackCategory"]
    return Response({"data": data})


@api_view(['GET'])
def searchQuery(request):
    global ue_sid_global,ue_mid_global
    query = request.GET.get('query')
    if not ('ue_sid' in request.session and 'ue_mid' in request.session):
        ue_sid, ue_mid = sessionIdGenrator()
        ue_sid_global = ue_sid
        ue_mid_global = ue_mid
    else:
        ue_sid = ue_sid_global
        ue_mid = ue_mid_global
    try:
        tempData = searchAPI(ue_sid, ue_mid, query)
    except:
        ue_sid, ue_mid = sessionIdGenrator()
        ue_sid_global = ue_sid
        ue_mid_global = ue_mid
        tempData = searchAPI(ue_sid, ue_mid, query)
    values = []
    for i in tempData["suggestions"]:
        values.append(i["value"])
    data = {"data": values}
    return Response(data)