buypeeb/listing.py
2020-08-23 22:40:43 +10:00

116 lines
3 KiB
Python

import requests
import re, json
from datetime import datetime, timezone, timedelta
import functions
JST = timezone(timedelta(hours = 9))
class YahooAuctionsItem:
"""
A class for handling items on Yahoo! Auctions Japan
Attributes
----------
name : str
The name given to the auction item by the user.
original_name : str
The name as it appears on Y!A,
favourite : bool
Whether or not the user has "favourited" this item.
url : bool
The URL this item was added from. If not provided, defaults to https://buyee.jp/item/yahoo/auction/{id}.
id : str
The ID of the item, found at the end of the URL.
last_checked : datetime
The time that the item's status was last checked by buypeeb.
available : bool
Whether or not the item is still available (if the auction is still available)
ready : bool
Whether or not the object is ready. If not, some of the data (price, available, etc.) may be out of date or unset.
updating : bool
If true, the object is currently being updated. Should never be true if ready is true.
price : float
The price of the item in yen.
bids : int
The number of bids that have been placed on the item.
start_date : datetime
The start date and time of the item in JST.
end_date : datetime
The end date and time of the item in JST.
"""
def __init__(self, url: str, id: str, name: str = None, from_json: dict = None):
# note - incoming url is not validated in any way!
self.name = name
self.price = 0
self.original_name = None
self.favourite = None
self.end_date = None
self.bids = 0
if url == None and from_json != None and id != None:
self.id = id
self.name = from_json['name']
self.original_name = from_json['original_name']
self.favourite = from_json['favourite']
self.url = f"https://buyee.jp/item/yahoo/auction/{self.id}"
elif url != None and id != None:
self.url = url
self.id = id
else:
raise RuntimeError
self.last_checked = datetime.fromisoformat('1970-01-01')
self.available = True
self.ready = False
self.updating = False
def update(self):
self.updating = True
try:
# the good news is, yahoo japan returns all the data we need in handy json format
# the bad news is that the only way to get that json format is to download the whole auction page and grep it
r = requests.get(f"https://page.auctions.yahoo.co.jp/jp/auction/{self.id}").text
# r = open("yahoo.html").read()
j = json.loads(re.match(r'.*var pageData ?= ?(\{.*?\});', r, re.DOTALL).group(1))
except:
raise
j = j['items']
self.price = float(j['price'])
self.bids = j['bids']
self.start_date = datetime.fromisoformat(j['starttime']).replace(tzinfo = JST)
self.end_date = datetime.fromisoformat(j['endtime']).replace(tzinfo = JST)
self.last_checked = datetime.now(JST)
self.original_name = j['productName']
if self.name == None:
self.name = j['productName']
self.ready = True
self.updating = False
def price_jpy(self):
return f"¥{self.price:.0f}"
def price_aud(self, rate = 75.0):
return f"${self.price / rate:.2f}"
def ending_in(self):
return "heenlo"